Actual source code: plex.c
petsc-3.14.6 2021-03-30
1: #include <petsc/private/dmpleximpl.h>
2: #include <petsc/private/isimpl.h>
3: #include <petsc/private/vecimpl.h>
4: #include <petsc/private/glvisvecimpl.h>
5: #include <petscsf.h>
6: #include <petscds.h>
7: #include <petscdraw.h>
8: #include <petscdmfield.h>
10: /* Logging support */
11: PetscLogEvent DMPLEX_Interpolate, DMPLEX_Partition, DMPLEX_Distribute, DMPLEX_DistributeCones, DMPLEX_DistributeLabels, DMPLEX_DistributeSF, DMPLEX_DistributeOverlap, DMPLEX_DistributeField, DMPLEX_DistributeData, DMPLEX_Migrate, DMPLEX_InterpolateSF, DMPLEX_GlobalToNaturalBegin, DMPLEX_GlobalToNaturalEnd, DMPLEX_NaturalToGlobalBegin, DMPLEX_NaturalToGlobalEnd, DMPLEX_Stratify, DMPLEX_Symmetrize, DMPLEX_Preallocate, DMPLEX_ResidualFEM, DMPLEX_JacobianFEM, DMPLEX_InterpolatorFEM, DMPLEX_InjectorFEM, DMPLEX_IntegralFEM, DMPLEX_CreateGmsh, DMPLEX_RebalanceSharedPoints, DMPLEX_PartSelf, DMPLEX_PartLabelInvert, DMPLEX_PartLabelCreateSF, DMPLEX_PartStratSF, DMPLEX_CreatePointSF,DMPLEX_LocatePoints;
13: PETSC_EXTERN PetscErrorCode VecView_MPI(Vec, PetscViewer);
15: /*@
16: DMPlexGetSimplexOrBoxCells - Get the range of cells which are neither prisms nor ghost FV cells
18: Input Parameter:
19: + dm - The DMPlex object
20: - height - The cell height in the Plex, 0 is the default
22: Output Parameters:
23: + cStart - The first "normal" cell
24: - cEnd - The upper bound on "normal"" cells
26: Note: This just gives the first range of cells found. If the mesh has several cell types, it will only give the first.
28: Level: developer
30: .seealso DMPlexConstructGhostCells(), DMPlexGetGhostCellStratum()
31: @*/
32: PetscErrorCode DMPlexGetSimplexOrBoxCells(DM dm, PetscInt height, PetscInt *cStart, PetscInt *cEnd)
33: {
34: DMPolytopeType ct = DM_POLYTOPE_UNKNOWN;
35: PetscInt cS, cE, c;
39: DMPlexGetHeightStratum(dm, PetscMax(height, 0), &cS, &cE);
40: for (c = cS; c < cE; ++c) {
41: DMPolytopeType cct;
43: DMPlexGetCellType(dm, c, &cct);
44: if ((PetscInt) cct < 0) break;
45: switch (cct) {
46: case DM_POLYTOPE_POINT:
47: case DM_POLYTOPE_SEGMENT:
48: case DM_POLYTOPE_TRIANGLE:
49: case DM_POLYTOPE_QUADRILATERAL:
50: case DM_POLYTOPE_TETRAHEDRON:
51: case DM_POLYTOPE_HEXAHEDRON:
52: ct = cct;
53: break;
54: default: break;
55: }
56: if (ct != DM_POLYTOPE_UNKNOWN) break;
57: }
58: if (ct != DM_POLYTOPE_UNKNOWN) {
59: DMLabel ctLabel;
61: DMPlexGetCellTypeLabel(dm, &ctLabel);
62: DMLabelGetStratumBounds(ctLabel, ct, &cS, &cE);
63: }
64: if (cStart) *cStart = cS;
65: if (cEnd) *cEnd = cE;
66: return(0);
67: }
69: PetscErrorCode DMPlexGetFieldType_Internal(DM dm, PetscSection section, PetscInt field, PetscInt *sStart, PetscInt *sEnd, PetscViewerVTKFieldType *ft)
70: {
71: PetscInt cdim, pStart, pEnd, vStart, vEnd, cStart, cEnd;
72: PetscInt vcdof[2] = {0,0}, globalvcdof[2];
76: *ft = PETSC_VTK_INVALID;
77: DMGetCoordinateDim(dm, &cdim);
78: DMPlexGetDepthStratum(dm, 0, &vStart, &vEnd);
79: DMPlexGetSimplexOrBoxCells(dm, 0, &cStart, &cEnd);
80: PetscSectionGetChart(section, &pStart, &pEnd);
81: if (field >= 0) {
82: if ((vStart >= pStart) && (vStart < pEnd)) {PetscSectionGetFieldDof(section, vStart, field, &vcdof[0]);}
83: if ((cStart >= pStart) && (cStart < pEnd)) {PetscSectionGetFieldDof(section, cStart, field, &vcdof[1]);}
84: } else {
85: if ((vStart >= pStart) && (vStart < pEnd)) {PetscSectionGetDof(section, vStart, &vcdof[0]);}
86: if ((cStart >= pStart) && (cStart < pEnd)) {PetscSectionGetDof(section, cStart, &vcdof[1]);}
87: }
88: MPI_Allreduce(vcdof, globalvcdof, 2, MPIU_INT, MPI_MAX, PetscObjectComm((PetscObject)dm));
89: if (globalvcdof[0]) {
90: *sStart = vStart;
91: *sEnd = vEnd;
92: if (globalvcdof[0] == cdim) *ft = PETSC_VTK_POINT_VECTOR_FIELD;
93: else *ft = PETSC_VTK_POINT_FIELD;
94: } else if (globalvcdof[1]) {
95: *sStart = cStart;
96: *sEnd = cEnd;
97: if (globalvcdof[1] == cdim) *ft = PETSC_VTK_CELL_VECTOR_FIELD;
98: else *ft = PETSC_VTK_CELL_FIELD;
99: } else {
100: if (field >= 0) {
101: const char *fieldname;
103: PetscSectionGetFieldName(section, field, &fieldname);
104: PetscInfo2((PetscObject) dm, "Could not classify VTK output type of section field %D \"%s\"\n", field, fieldname);
105: } else {
106: PetscInfo((PetscObject) dm, "Could not classify VTK output typp of section\"%s\"\n");
107: }
108: }
109: return(0);
110: }
112: static PetscErrorCode VecView_Plex_Local_Draw(Vec v, PetscViewer viewer)
113: {
114: DM dm;
115: PetscSection s;
116: PetscDraw draw, popup;
117: DM cdm;
118: PetscSection coordSection;
119: Vec coordinates;
120: const PetscScalar *coords, *array;
121: PetscReal bound[4] = {PETSC_MAX_REAL, PETSC_MAX_REAL, PETSC_MIN_REAL, PETSC_MIN_REAL};
122: PetscReal vbound[2], time;
123: PetscBool isnull, flg;
124: PetscInt dim, Nf, f, Nc, comp, vStart, vEnd, cStart, cEnd, c, N, level, step, w = 0;
125: const char *name;
126: char title[PETSC_MAX_PATH_LEN];
127: PetscErrorCode ierr;
130: PetscViewerDrawGetDraw(viewer, 0, &draw);
131: PetscDrawIsNull(draw, &isnull);
132: if (isnull) return(0);
134: VecGetDM(v, &dm);
135: DMGetCoordinateDim(dm, &dim);
136: if (dim != 2) SETERRQ1(PetscObjectComm((PetscObject) dm), PETSC_ERR_SUP, "Cannot draw meshes of dimension %D. Use PETSCVIEWERGLVIS", dim);
137: DMGetLocalSection(dm, &s);
138: PetscSectionGetNumFields(s, &Nf);
139: DMGetCoarsenLevel(dm, &level);
140: DMGetCoordinateDM(dm, &cdm);
141: DMGetLocalSection(cdm, &coordSection);
142: DMGetCoordinatesLocal(dm, &coordinates);
143: DMPlexGetDepthStratum(dm, 0, &vStart, &vEnd);
144: DMPlexGetHeightStratum(dm, 0, &cStart, &cEnd);
146: PetscObjectGetName((PetscObject) v, &name);
147: DMGetOutputSequenceNumber(dm, &step, &time);
149: VecGetLocalSize(coordinates, &N);
150: VecGetArrayRead(coordinates, &coords);
151: for (c = 0; c < N; c += dim) {
152: bound[0] = PetscMin(bound[0], PetscRealPart(coords[c])); bound[2] = PetscMax(bound[2], PetscRealPart(coords[c]));
153: bound[1] = PetscMin(bound[1], PetscRealPart(coords[c+1])); bound[3] = PetscMax(bound[3], PetscRealPart(coords[c+1]));
154: }
155: VecRestoreArrayRead(coordinates, &coords);
156: PetscDrawClear(draw);
158: /* Could implement something like DMDASelectFields() */
159: for (f = 0; f < Nf; ++f) {
160: DM fdm = dm;
161: Vec fv = v;
162: IS fis;
163: char prefix[PETSC_MAX_PATH_LEN];
164: const char *fname;
166: PetscSectionGetFieldComponents(s, f, &Nc);
167: PetscSectionGetFieldName(s, f, &fname);
169: if (v->hdr.prefix) {PetscStrncpy(prefix, v->hdr.prefix,sizeof(prefix));}
170: else {prefix[0] = '\0';}
171: if (Nf > 1) {
172: DMCreateSubDM(dm, 1, &f, &fis, &fdm);
173: VecGetSubVector(v, fis, &fv);
174: PetscStrlcat(prefix, fname,sizeof(prefix));
175: PetscStrlcat(prefix, "_",sizeof(prefix));
176: }
177: for (comp = 0; comp < Nc; ++comp, ++w) {
178: PetscInt nmax = 2;
180: PetscViewerDrawGetDraw(viewer, w, &draw);
181: if (Nc > 1) {PetscSNPrintf(title, sizeof(title), "%s:%s_%D Step: %D Time: %.4g", name, fname, comp, step, time);}
182: else {PetscSNPrintf(title, sizeof(title), "%s:%s Step: %D Time: %.4g", name, fname, step, time);}
183: PetscDrawSetTitle(draw, title);
185: /* TODO Get max and min only for this component */
186: PetscOptionsGetRealArray(NULL, prefix, "-vec_view_bounds", vbound, &nmax, &flg);
187: if (!flg) {
188: VecMin(fv, NULL, &vbound[0]);
189: VecMax(fv, NULL, &vbound[1]);
190: if (vbound[1] <= vbound[0]) vbound[1] = vbound[0] + 1.0;
191: }
192: PetscDrawGetPopup(draw, &popup);
193: PetscDrawScalePopup(popup, vbound[0], vbound[1]);
194: PetscDrawSetCoordinates(draw, bound[0], bound[1], bound[2], bound[3]);
196: VecGetArrayRead(fv, &array);
197: for (c = cStart; c < cEnd; ++c) {
198: PetscScalar *coords = NULL, *a = NULL;
199: PetscInt numCoords, color[4] = {-1,-1,-1,-1};
201: DMPlexPointLocalRead(fdm, c, array, &a);
202: if (a) {
203: color[0] = PetscDrawRealToColor(PetscRealPart(a[comp]), vbound[0], vbound[1]);
204: color[1] = color[2] = color[3] = color[0];
205: } else {
206: PetscScalar *vals = NULL;
207: PetscInt numVals, va;
209: DMPlexVecGetClosure(fdm, NULL, fv, c, &numVals, &vals);
210: if (numVals % Nc) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "The number of components %D does not divide the number of values in the closure %D", Nc, numVals);
211: switch (numVals/Nc) {
212: case 3: /* P1 Triangle */
213: case 4: /* P1 Quadrangle */
214: for (va = 0; va < numVals/Nc; ++va) color[va] = PetscDrawRealToColor(PetscRealPart(vals[va*Nc+comp]), vbound[0], vbound[1]);
215: break;
216: case 6: /* P2 Triangle */
217: case 8: /* P2 Quadrangle */
218: for (va = 0; va < numVals/(Nc*2); ++va) color[va] = PetscDrawRealToColor(PetscRealPart(vals[va*Nc+comp + numVals/(Nc*2)]), vbound[0], vbound[1]);
219: break;
220: default: SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Number of values for cell closure %D cannot be handled", numVals/Nc);
221: }
222: DMPlexVecRestoreClosure(fdm, NULL, fv, c, &numVals, &vals);
223: }
224: DMPlexVecGetClosure(dm, coordSection, coordinates, c, &numCoords, &coords);
225: switch (numCoords) {
226: case 6:
227: PetscDrawTriangle(draw, PetscRealPart(coords[0]), PetscRealPart(coords[1]), PetscRealPart(coords[2]), PetscRealPart(coords[3]), PetscRealPart(coords[4]), PetscRealPart(coords[5]), color[0], color[1], color[2]);
228: break;
229: case 8:
230: PetscDrawTriangle(draw, PetscRealPart(coords[0]), PetscRealPart(coords[1]), PetscRealPart(coords[2]), PetscRealPart(coords[3]), PetscRealPart(coords[4]), PetscRealPart(coords[5]), color[0], color[1], color[2]);
231: PetscDrawTriangle(draw, PetscRealPart(coords[4]), PetscRealPart(coords[5]), PetscRealPart(coords[6]), PetscRealPart(coords[7]), PetscRealPart(coords[0]), PetscRealPart(coords[1]), color[2], color[3], color[0]);
232: break;
233: default: SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_SUP, "Cannot draw cells with %D coordinates", numCoords);
234: }
235: DMPlexVecRestoreClosure(dm, coordSection, coordinates, c, &numCoords, &coords);
236: }
237: VecRestoreArrayRead(fv, &array);
238: PetscDrawFlush(draw);
239: PetscDrawPause(draw);
240: PetscDrawSave(draw);
241: }
242: if (Nf > 1) {
243: VecRestoreSubVector(v, fis, &fv);
244: ISDestroy(&fis);
245: DMDestroy(&fdm);
246: }
247: }
248: return(0);
249: }
251: static PetscErrorCode VecView_Plex_Local_VTK(Vec v, PetscViewer viewer)
252: {
253: DM dm;
254: Vec locv;
255: const char *name;
256: PetscSection section;
257: PetscInt pStart, pEnd;
258: PetscInt numFields;
259: PetscViewerVTKFieldType ft;
260: PetscErrorCode ierr;
263: VecGetDM(v, &dm);
264: DMCreateLocalVector(dm, &locv); /* VTK viewer requires exclusive ownership of the vector */
265: PetscObjectGetName((PetscObject) v, &name);
266: PetscObjectSetName((PetscObject) locv, name);
267: VecCopy(v, locv);
268: DMGetLocalSection(dm, §ion);
269: PetscSectionGetNumFields(section, &numFields);
270: if (!numFields) {
271: DMPlexGetFieldType_Internal(dm, section, PETSC_DETERMINE, &pStart, &pEnd, &ft);
272: PetscViewerVTKAddField(viewer, (PetscObject) dm, DMPlexVTKWriteAll, PETSC_DEFAULT, ft, PETSC_TRUE,(PetscObject) locv);
273: } else {
274: PetscInt f;
276: for (f = 0; f < numFields; f++) {
277: DMPlexGetFieldType_Internal(dm, section, f, &pStart, &pEnd, &ft);
278: if (ft == PETSC_VTK_INVALID) continue;
279: PetscObjectReference((PetscObject)locv);
280: PetscViewerVTKAddField(viewer, (PetscObject) dm, DMPlexVTKWriteAll, f, ft, PETSC_TRUE,(PetscObject) locv);
281: }
282: VecDestroy(&locv);
283: }
284: return(0);
285: }
287: PetscErrorCode VecView_Plex_Local(Vec v, PetscViewer viewer)
288: {
289: DM dm;
290: PetscBool isvtk, ishdf5, isdraw, isglvis;
294: VecGetDM(v, &dm);
295: if (!dm) SETERRQ(PetscObjectComm((PetscObject)v), PETSC_ERR_ARG_WRONG, "Vector not generated from a DM");
296: PetscObjectTypeCompare((PetscObject) viewer, PETSCVIEWERVTK, &isvtk);
297: PetscObjectTypeCompare((PetscObject) viewer, PETSCVIEWERHDF5, &ishdf5);
298: PetscObjectTypeCompare((PetscObject) viewer, PETSCVIEWERDRAW, &isdraw);
299: PetscObjectTypeCompare((PetscObject) viewer, PETSCVIEWERGLVIS, &isglvis);
300: if (isvtk || ishdf5 || isdraw || isglvis) {
301: PetscInt i,numFields;
302: PetscObject fe;
303: PetscBool fem = PETSC_FALSE;
304: Vec locv = v;
305: const char *name;
306: PetscInt step;
307: PetscReal time;
309: DMGetNumFields(dm, &numFields);
310: for (i=0; i<numFields; i++) {
311: DMGetField(dm, i, NULL, &fe);
312: if (fe->classid == PETSCFE_CLASSID) { fem = PETSC_TRUE; break; }
313: }
314: if (fem) {
315: DMGetLocalVector(dm, &locv);
316: PetscObjectGetName((PetscObject) v, &name);
317: PetscObjectSetName((PetscObject) locv, name);
318: VecCopy(v, locv);
319: DMGetOutputSequenceNumber(dm, NULL, &time);
320: DMPlexInsertBoundaryValues(dm, PETSC_TRUE, locv, time, NULL, NULL, NULL);
321: }
322: if (isvtk) {
323: VecView_Plex_Local_VTK(locv, viewer);
324: } else if (ishdf5) {
325: #if defined(PETSC_HAVE_HDF5)
326: VecView_Plex_Local_HDF5_Internal(locv, viewer);
327: #else
328: SETERRQ(PetscObjectComm((PetscObject) dm), PETSC_ERR_SUP, "HDF5 not supported in this build.\nPlease reconfigure using --download-hdf5");
329: #endif
330: } else if (isdraw) {
331: VecView_Plex_Local_Draw(locv, viewer);
332: } else if (isglvis) {
333: DMGetOutputSequenceNumber(dm, &step, NULL);
334: PetscViewerGLVisSetSnapId(viewer, step);
335: VecView_GLVis(locv, viewer);
336: }
337: if (fem) {DMRestoreLocalVector(dm, &locv);}
338: } else {
339: PetscBool isseq;
341: PetscObjectTypeCompare((PetscObject) v, VECSEQ, &isseq);
342: if (isseq) {VecView_Seq(v, viewer);}
343: else {VecView_MPI(v, viewer);}
344: }
345: return(0);
346: }
348: PetscErrorCode VecView_Plex(Vec v, PetscViewer viewer)
349: {
350: DM dm;
351: PetscBool isvtk, ishdf5, isdraw, isglvis;
355: VecGetDM(v, &dm);
356: if (!dm) SETERRQ(PetscObjectComm((PetscObject)v), PETSC_ERR_ARG_WRONG, "Vector not generated from a DM");
357: PetscObjectTypeCompare((PetscObject) viewer, PETSCVIEWERVTK, &isvtk);
358: PetscObjectTypeCompare((PetscObject) viewer, PETSCVIEWERHDF5, &ishdf5);
359: PetscObjectTypeCompare((PetscObject) viewer, PETSCVIEWERDRAW, &isdraw);
360: PetscObjectTypeCompare((PetscObject) viewer, PETSCVIEWERGLVIS, &isglvis);
361: if (isvtk || isdraw || isglvis) {
362: Vec locv;
363: const char *name;
365: DMGetLocalVector(dm, &locv);
366: PetscObjectGetName((PetscObject) v, &name);
367: PetscObjectSetName((PetscObject) locv, name);
368: DMGlobalToLocalBegin(dm, v, INSERT_VALUES, locv);
369: DMGlobalToLocalEnd(dm, v, INSERT_VALUES, locv);
370: VecView_Plex_Local(locv, viewer);
371: DMRestoreLocalVector(dm, &locv);
372: } else if (ishdf5) {
373: #if defined(PETSC_HAVE_HDF5)
374: VecView_Plex_HDF5_Internal(v, viewer);
375: #else
376: SETERRQ(PetscObjectComm((PetscObject) dm), PETSC_ERR_SUP, "HDF5 not supported in this build.\nPlease reconfigure using --download-hdf5");
377: #endif
378: } else {
379: PetscBool isseq;
381: PetscObjectTypeCompare((PetscObject) v, VECSEQ, &isseq);
382: if (isseq) {VecView_Seq(v, viewer);}
383: else {VecView_MPI(v, viewer);}
384: }
385: return(0);
386: }
388: PetscErrorCode VecView_Plex_Native(Vec originalv, PetscViewer viewer)
389: {
390: DM dm;
391: MPI_Comm comm;
392: PetscViewerFormat format;
393: Vec v;
394: PetscBool isvtk, ishdf5;
395: PetscErrorCode ierr;
398: VecGetDM(originalv, &dm);
399: PetscObjectGetComm((PetscObject) originalv, &comm);
400: if (!dm) SETERRQ(comm, PETSC_ERR_ARG_WRONG, "Vector not generated from a DM");
401: PetscViewerGetFormat(viewer, &format);
402: PetscObjectTypeCompare((PetscObject) viewer, PETSCVIEWERHDF5, &ishdf5);
403: PetscObjectTypeCompare((PetscObject) viewer, PETSCVIEWERVTK, &isvtk);
404: if (format == PETSC_VIEWER_NATIVE) {
405: /* Natural ordering is the common case for DMDA, NATIVE means plain vector, for PLEX is the opposite */
406: /* this need a better fix */
407: if (dm->useNatural) {
408: if (dm->sfNatural) {
409: const char *vecname;
410: PetscInt n, nroots;
412: VecGetLocalSize(originalv, &n);
413: PetscSFGetGraph(dm->sfNatural, &nroots, NULL, NULL, NULL);
414: if (n == nroots) {
415: DMGetGlobalVector(dm, &v);
416: DMPlexGlobalToNaturalBegin(dm, originalv, v);
417: DMPlexGlobalToNaturalEnd(dm, originalv, v);
418: PetscObjectGetName((PetscObject) originalv, &vecname);
419: PetscObjectSetName((PetscObject) v, vecname);
420: } else SETERRQ(comm, PETSC_ERR_ARG_WRONG, "DM global to natural SF only handles global vectors");
421: } else SETERRQ(comm, PETSC_ERR_ARG_WRONGSTATE, "DM global to natural SF was not created");
422: } else v = originalv;
423: } else v = originalv;
425: if (ishdf5) {
426: #if defined(PETSC_HAVE_HDF5)
427: VecView_Plex_HDF5_Native_Internal(v, viewer);
428: #else
429: SETERRQ(comm, PETSC_ERR_SUP, "HDF5 not supported in this build.\nPlease reconfigure using --download-hdf5");
430: #endif
431: } else if (isvtk) {
432: SETERRQ(comm, PETSC_ERR_SUP, "VTK format does not support viewing in natural order. Please switch to HDF5.");
433: } else {
434: PetscBool isseq;
436: PetscObjectTypeCompare((PetscObject) v, VECSEQ, &isseq);
437: if (isseq) {VecView_Seq(v, viewer);}
438: else {VecView_MPI(v, viewer);}
439: }
440: if (v != originalv) {DMRestoreGlobalVector(dm, &v);}
441: return(0);
442: }
444: PetscErrorCode VecLoad_Plex_Local(Vec v, PetscViewer viewer)
445: {
446: DM dm;
447: PetscBool ishdf5;
451: VecGetDM(v, &dm);
452: if (!dm) SETERRQ(PetscObjectComm((PetscObject)v), PETSC_ERR_ARG_WRONG, "Vector not generated from a DM");
453: PetscObjectTypeCompare((PetscObject) viewer, PETSCVIEWERHDF5, &ishdf5);
454: if (ishdf5) {
455: DM dmBC;
456: Vec gv;
457: const char *name;
459: DMGetOutputDM(dm, &dmBC);
460: DMGetGlobalVector(dmBC, &gv);
461: PetscObjectGetName((PetscObject) v, &name);
462: PetscObjectSetName((PetscObject) gv, name);
463: VecLoad_Default(gv, viewer);
464: DMGlobalToLocalBegin(dmBC, gv, INSERT_VALUES, v);
465: DMGlobalToLocalEnd(dmBC, gv, INSERT_VALUES, v);
466: DMRestoreGlobalVector(dmBC, &gv);
467: } else {
468: VecLoad_Default(v, viewer);
469: }
470: return(0);
471: }
473: PetscErrorCode VecLoad_Plex(Vec v, PetscViewer viewer)
474: {
475: DM dm;
476: PetscBool ishdf5;
480: VecGetDM(v, &dm);
481: if (!dm) SETERRQ(PetscObjectComm((PetscObject)v), PETSC_ERR_ARG_WRONG, "Vector not generated from a DM");
482: PetscObjectTypeCompare((PetscObject) viewer, PETSCVIEWERHDF5, &ishdf5);
483: if (ishdf5) {
484: #if defined(PETSC_HAVE_HDF5)
485: VecLoad_Plex_HDF5_Internal(v, viewer);
486: #else
487: SETERRQ(PetscObjectComm((PetscObject) dm), PETSC_ERR_SUP, "HDF5 not supported in this build.\nPlease reconfigure using --download-hdf5");
488: #endif
489: } else {
490: VecLoad_Default(v, viewer);
491: }
492: return(0);
493: }
495: PetscErrorCode VecLoad_Plex_Native(Vec originalv, PetscViewer viewer)
496: {
497: DM dm;
498: PetscViewerFormat format;
499: PetscBool ishdf5;
500: PetscErrorCode ierr;
503: VecGetDM(originalv, &dm);
504: if (!dm) SETERRQ(PetscObjectComm((PetscObject) originalv), PETSC_ERR_ARG_WRONG, "Vector not generated from a DM");
505: PetscViewerGetFormat(viewer, &format);
506: PetscObjectTypeCompare((PetscObject) viewer, PETSCVIEWERHDF5, &ishdf5);
507: if (format == PETSC_VIEWER_NATIVE) {
508: if (dm->useNatural) {
509: if (dm->sfNatural) {
510: if (ishdf5) {
511: #if defined(PETSC_HAVE_HDF5)
512: Vec v;
513: const char *vecname;
515: DMGetGlobalVector(dm, &v);
516: PetscObjectGetName((PetscObject) originalv, &vecname);
517: PetscObjectSetName((PetscObject) v, vecname);
518: VecLoad_Plex_HDF5_Native_Internal(v, viewer);
519: DMPlexNaturalToGlobalBegin(dm, v, originalv);
520: DMPlexNaturalToGlobalEnd(dm, v, originalv);
521: DMRestoreGlobalVector(dm, &v);
522: #else
523: SETERRQ(PetscObjectComm((PetscObject) dm), PETSC_ERR_SUP, "HDF5 not supported in this build.\nPlease reconfigure using --download-hdf5");
524: #endif
525: } else SETERRQ(PetscObjectComm((PetscObject) dm), PETSC_ERR_SUP, "Reading in natural order is not supported for anything but HDF5.");
526: }
527: } else {
528: VecLoad_Default(originalv, viewer);
529: }
530: }
531: return(0);
532: }
534: PETSC_UNUSED static PetscErrorCode DMPlexView_Ascii_Geometry(DM dm, PetscViewer viewer)
535: {
536: PetscSection coordSection;
537: Vec coordinates;
538: DMLabel depthLabel, celltypeLabel;
539: const char *name[4];
540: const PetscScalar *a;
541: PetscInt dim, pStart, pEnd, cStart, cEnd, c;
542: PetscErrorCode ierr;
545: DMGetDimension(dm, &dim);
546: DMGetCoordinatesLocal(dm, &coordinates);
547: DMGetCoordinateSection(dm, &coordSection);
548: DMPlexGetDepthLabel(dm, &depthLabel);
549: DMPlexGetCellTypeLabel(dm, &celltypeLabel);
550: DMPlexGetHeightStratum(dm, 0, &cStart, &cEnd);
551: PetscSectionGetChart(coordSection, &pStart, &pEnd);
552: VecGetArrayRead(coordinates, &a);
553: name[0] = "vertex";
554: name[1] = "edge";
555: name[dim-1] = "face";
556: name[dim] = "cell";
557: for (c = cStart; c < cEnd; ++c) {
558: PetscInt *closure = NULL;
559: PetscInt closureSize, cl, ct;
561: DMLabelGetValue(celltypeLabel, c, &ct);
562: PetscViewerASCIIPrintf(viewer, "Geometry for cell %D polytope type %s:\n", c, DMPolytopeTypes[ct]);
563: DMPlexGetTransitiveClosure(dm, c, PETSC_TRUE, &closureSize, &closure);
564: PetscViewerASCIIPushTab(viewer);
565: for (cl = 0; cl < closureSize*2; cl += 2) {
566: PetscInt point = closure[cl], depth, dof, off, d, p;
568: if ((point < pStart) || (point >= pEnd)) continue;
569: PetscSectionGetDof(coordSection, point, &dof);
570: if (!dof) continue;
571: DMLabelGetValue(depthLabel, point, &depth);
572: PetscSectionGetOffset(coordSection, point, &off);
573: PetscViewerASCIIPrintf(viewer, "%s %D coords:", name[depth], point);
574: for (p = 0; p < dof/dim; ++p) {
575: PetscViewerASCIIPrintf(viewer, " (");
576: for (d = 0; d < dim; ++d) {
577: if (d > 0) {PetscViewerASCIIPrintf(viewer, ", ");}
578: PetscViewerASCIIPrintf(viewer, "%g", (double) PetscRealPart(a[off+p*dim+d]));
579: }
580: PetscViewerASCIIPrintf(viewer, ")");
581: }
582: PetscViewerASCIIPrintf(viewer, "\n");
583: }
584: DMPlexRestoreTransitiveClosure(dm, c, PETSC_TRUE, &closureSize, &closure);
585: PetscViewerASCIIPopTab(viewer);
586: }
587: VecRestoreArrayRead(coordinates, &a);
588: return(0);
589: }
591: static PetscErrorCode DMPlexView_Ascii(DM dm, PetscViewer viewer)
592: {
593: DM_Plex *mesh = (DM_Plex*) dm->data;
594: DM cdm;
595: DMLabel markers, celltypes;
596: PetscSection coordSection;
597: Vec coordinates;
598: PetscViewerFormat format;
599: PetscErrorCode ierr;
602: DMGetCoordinateDM(dm, &cdm);
603: DMGetLocalSection(cdm, &coordSection);
604: DMGetCoordinatesLocal(dm, &coordinates);
605: PetscViewerGetFormat(viewer, &format);
606: if (format == PETSC_VIEWER_ASCII_INFO_DETAIL) {
607: const char *name;
608: PetscInt dim, cellHeight, maxConeSize, maxSupportSize;
609: PetscInt pStart, pEnd, p;
610: PetscMPIInt rank, size;
612: MPI_Comm_rank(PetscObjectComm((PetscObject)dm), &rank);
613: MPI_Comm_size(PetscObjectComm((PetscObject)dm), &size);
614: PetscObjectGetName((PetscObject) dm, &name);
615: DMPlexGetChart(dm, &pStart, &pEnd);
616: DMPlexGetMaxSizes(dm, &maxConeSize, &maxSupportSize);
617: DMGetDimension(dm, &dim);
618: DMPlexGetVTKCellHeight(dm, &cellHeight);
619: if (name) {PetscViewerASCIIPrintf(viewer, "%s in %D dimension%s:\n", name, dim, dim == 1 ? "" : "s");}
620: else {PetscViewerASCIIPrintf(viewer, "Mesh in %D dimension%s:\n", dim, dim == 1 ? "" : "s");}
621: if (cellHeight) {PetscViewerASCIIPrintf(viewer, " Cells are at height %D\n", cellHeight);}
622: PetscViewerASCIIPrintf(viewer, "Supports:\n", name);
623: PetscViewerASCIIPushSynchronized(viewer);
624: PetscViewerASCIISynchronizedPrintf(viewer, "[%d] Max support size: %D\n", rank, maxSupportSize);
625: for (p = pStart; p < pEnd; ++p) {
626: PetscInt dof, off, s;
628: PetscSectionGetDof(mesh->supportSection, p, &dof);
629: PetscSectionGetOffset(mesh->supportSection, p, &off);
630: for (s = off; s < off+dof; ++s) {
631: PetscViewerASCIISynchronizedPrintf(viewer, "[%d]: %D ----> %D\n", rank, p, mesh->supports[s]);
632: }
633: }
634: PetscViewerFlush(viewer);
635: PetscViewerASCIIPrintf(viewer, "Cones:\n", name);
636: PetscViewerASCIISynchronizedPrintf(viewer, "[%d] Max cone size: %D\n", rank, maxConeSize);
637: for (p = pStart; p < pEnd; ++p) {
638: PetscInt dof, off, c;
640: PetscSectionGetDof(mesh->coneSection, p, &dof);
641: PetscSectionGetOffset(mesh->coneSection, p, &off);
642: for (c = off; c < off+dof; ++c) {
643: PetscViewerASCIISynchronizedPrintf(viewer, "[%d]: %D <---- %D (%D)\n", rank, p, mesh->cones[c], mesh->coneOrientations[c]);
644: }
645: }
646: PetscViewerFlush(viewer);
647: PetscViewerASCIIPopSynchronized(viewer);
648: if (coordSection && coordinates) {
649: PetscSectionVecView(coordSection, coordinates, viewer);
650: }
651: DMGetLabel(dm, "marker", &markers);
652: if (markers) {DMLabelView(markers,viewer);}
653: DMPlexGetCellTypeLabel(dm, &celltypes);
654: if (celltypes) {DMLabelView(celltypes, viewer);}
655: if (size > 1) {
656: PetscSF sf;
658: DMGetPointSF(dm, &sf);
659: PetscSFView(sf, viewer);
660: }
661: PetscViewerFlush(viewer);
662: } else if (format == PETSC_VIEWER_ASCII_LATEX) {
663: const char *name, *color;
664: const char *defcolors[3] = {"gray", "orange", "green"};
665: const char *deflcolors[4] = {"blue", "cyan", "red", "magenta"};
666: char lname[PETSC_MAX_PATH_LEN];
667: PetscReal scale = 2.0;
668: PetscReal tikzscale = 1.0;
669: PetscBool useNumbers = PETSC_TRUE, useLabels, useColors;
670: double tcoords[3];
671: PetscScalar *coords;
672: PetscInt numLabels, l, numColors, numLColors, dim, depth, cStart, cEnd, c, vStart, vEnd, v, eStart = 0, eEnd = 0, e, p;
673: PetscMPIInt rank, size;
674: char **names, **colors, **lcolors;
675: PetscBool plotEdges, flg, lflg;
676: PetscBT wp = NULL;
677: PetscInt pEnd, pStart;
679: DMGetDimension(dm, &dim);
680: DMPlexGetDepth(dm, &depth);
681: DMGetNumLabels(dm, &numLabels);
682: numLabels = PetscMax(numLabels, 10);
683: numColors = 10;
684: numLColors = 10;
685: PetscCalloc3(numLabels, &names, numColors, &colors, numLColors, &lcolors);
686: PetscOptionsGetReal(((PetscObject) viewer)->options,((PetscObject) viewer)->prefix, "-dm_plex_view_scale", &scale, NULL);
687: PetscOptionsGetReal(((PetscObject) viewer)->options,((PetscObject) viewer)->prefix, "-dm_plex_view_tikzscale", &tikzscale, NULL);
688: PetscOptionsGetBool(((PetscObject) viewer)->options,((PetscObject) viewer)->prefix, "-dm_plex_view_numbers", &useNumbers, NULL);
689: PetscOptionsGetStringArray(((PetscObject) viewer)->options,((PetscObject) viewer)->prefix, "-dm_plex_view_labels", names, &numLabels, &useLabels);
690: if (!useLabels) numLabels = 0;
691: PetscOptionsGetStringArray(((PetscObject) viewer)->options,((PetscObject) viewer)->prefix, "-dm_plex_view_colors", colors, &numColors, &useColors);
692: if (!useColors) {
693: numColors = 3;
694: for (c = 0; c < numColors; ++c) {PetscStrallocpy(defcolors[c], &colors[c]);}
695: }
696: PetscOptionsGetStringArray(((PetscObject) viewer)->options,((PetscObject) viewer)->prefix, "-dm_plex_view_lcolors", lcolors, &numLColors, &useColors);
697: if (!useColors) {
698: numLColors = 4;
699: for (c = 0; c < numLColors; ++c) {PetscStrallocpy(deflcolors[c], &lcolors[c]);}
700: }
701: PetscOptionsGetString(((PetscObject) viewer)->options, ((PetscObject) viewer)->prefix, "-dm_plex_view_label_filter", lname, sizeof(lname), &lflg);
702: plotEdges = (PetscBool)(depth > 1 && useNumbers && dim < 3);
703: PetscOptionsGetBool(((PetscObject) viewer)->options,((PetscObject) viewer)->prefix, "-dm_plex_view_edges", &plotEdges, &flg);
704: if (flg && plotEdges && depth < dim) SETERRQ(PetscObjectComm((PetscObject) dm), PETSC_ERR_SUP, "Mesh must be interpolated");
705: if (depth < dim) plotEdges = PETSC_FALSE;
707: /* filter points with labelvalue != labeldefaultvalue */
708: DMPlexGetChart(dm, &pStart, &pEnd);
709: if (lflg) {
710: DMLabel lbl;
712: DMGetLabel(dm, lname, &lbl);
713: if (lbl) {
714: PetscInt val, defval;
716: DMLabelGetDefaultValue(lbl, &defval);
717: PetscBTCreate(pEnd-pStart, &wp);
718: for (c = pStart; c < pEnd; c++) {
719: PetscInt *closure = NULL;
720: PetscInt closureSize;
722: DMLabelGetValue(lbl, c, &val);
723: if (val == defval) continue;
725: DMPlexGetTransitiveClosure(dm, c, PETSC_TRUE, &closureSize, &closure);
726: for (p = 0; p < closureSize*2; p += 2) {
727: PetscBTSet(wp, closure[p] - pStart);
728: }
729: DMPlexRestoreTransitiveClosure(dm, c, PETSC_TRUE, &closureSize, &closure);
730: }
731: }
732: }
734: MPI_Comm_rank(PetscObjectComm((PetscObject)dm), &rank);
735: MPI_Comm_size(PetscObjectComm((PetscObject)dm), &size);
736: PetscObjectGetName((PetscObject) dm, &name);
737: PetscViewerASCIIPrintf(viewer, "\
738: \\documentclass[tikz]{standalone}\n\n\
739: \\usepackage{pgflibraryshapes}\n\
740: \\usetikzlibrary{backgrounds}\n\
741: \\usetikzlibrary{arrows}\n\
742: \\begin{document}\n");
743: if (size > 1) {
744: PetscViewerASCIIPrintf(viewer, "%s for process ", name);
745: for (p = 0; p < size; ++p) {
746: if (p > 0 && p == size-1) {
747: PetscViewerASCIIPrintf(viewer, ", and ", colors[p%numColors], p);
748: } else if (p > 0) {
749: PetscViewerASCIIPrintf(viewer, ", ", colors[p%numColors], p);
750: }
751: PetscViewerASCIIPrintf(viewer, "{\\textcolor{%s}%D}", colors[p%numColors], p);
752: }
753: PetscViewerASCIIPrintf(viewer, ".\n\n\n");
754: }
755: PetscViewerASCIIPrintf(viewer, "\\begin{tikzpicture}[scale = %g,font=\\fontsize{8}{8}\\selectfont]\n", (double) tikzscale);
757: /* Plot vertices */
758: DMPlexGetDepthStratum(dm, 0, &vStart, &vEnd);
759: VecGetArray(coordinates, &coords);
760: PetscViewerASCIIPushSynchronized(viewer);
761: for (v = vStart; v < vEnd; ++v) {
762: PetscInt off, dof, d;
763: PetscBool isLabeled = PETSC_FALSE;
765: if (wp && !PetscBTLookup(wp,v - pStart)) continue;
766: PetscSectionGetDof(coordSection, v, &dof);
767: PetscSectionGetOffset(coordSection, v, &off);
768: PetscViewerASCIISynchronizedPrintf(viewer, "\\path (");
769: if (PetscUnlikely(dof > 3)) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_PLIB,"coordSection vertex %D has dof %D > 3",v,dof);
770: for (d = 0; d < dof; ++d) {
771: tcoords[d] = (double) (scale*PetscRealPart(coords[off+d]));
772: tcoords[d] = PetscAbs(tcoords[d]) < 1e-10 ? 0.0 : tcoords[d];
773: }
774: /* Rotate coordinates since PGF makes z point out of the page instead of up */
775: if (dim == 3) {PetscReal tmp = tcoords[1]; tcoords[1] = tcoords[2]; tcoords[2] = -tmp;}
776: for (d = 0; d < dof; ++d) {
777: if (d > 0) {PetscViewerASCIISynchronizedPrintf(viewer, ",");}
778: PetscViewerASCIISynchronizedPrintf(viewer, "%g", (double) tcoords[d]);
779: }
780: color = colors[rank%numColors];
781: for (l = 0; l < numLabels; ++l) {
782: PetscInt val;
783: DMGetLabelValue(dm, names[l], v, &val);
784: if (val >= 0) {color = lcolors[l%numLColors]; isLabeled = PETSC_TRUE; break;}
785: }
786: if (useNumbers) {
787: PetscViewerASCIISynchronizedPrintf(viewer, ") node(%D_%d) [draw,shape=circle,color=%s] {%D};\n", v, rank, color, v);
788: } else {
789: PetscViewerASCIISynchronizedPrintf(viewer, ") node(%D_%d) [fill,inner sep=%dpt,shape=circle,color=%s] {};\n", v, rank, !isLabeled ? 1 : 2, color);
790: }
791: }
792: VecRestoreArray(coordinates, &coords);
793: PetscViewerFlush(viewer);
794: /* Plot cells */
795: DMPlexGetHeightStratum(dm, 0, &cStart, &cEnd);
796: DMPlexGetDepthStratum(dm, 1, &eStart, &eEnd);
797: if (dim == 3 || !useNumbers) {
798: for (e = eStart; e < eEnd; ++e) {
799: const PetscInt *cone;
801: if (wp && !PetscBTLookup(wp,e - pStart)) continue;
802: color = colors[rank%numColors];
803: for (l = 0; l < numLabels; ++l) {
804: PetscInt val;
805: DMGetLabelValue(dm, names[l], e, &val);
806: if (val >= 0) {color = lcolors[l%numLColors]; break;}
807: }
808: DMPlexGetCone(dm, e, &cone);
809: PetscViewerASCIISynchronizedPrintf(viewer, "\\draw[color=%s] (%D_%d) -- (%D_%d);\n", color, cone[0], rank, cone[1], rank);
810: }
811: } else {
812: for (c = cStart; c < cEnd; ++c) {
813: PetscInt *closure = NULL;
814: PetscInt closureSize, firstPoint = -1;
816: if (wp && !PetscBTLookup(wp,c - pStart)) continue;
817: DMPlexGetTransitiveClosure(dm, c, PETSC_TRUE, &closureSize, &closure);
818: PetscViewerASCIISynchronizedPrintf(viewer, "\\draw[color=%s] ", colors[rank%numColors]);
819: for (p = 0; p < closureSize*2; p += 2) {
820: const PetscInt point = closure[p];
822: if ((point < vStart) || (point >= vEnd)) continue;
823: if (firstPoint >= 0) {PetscViewerASCIISynchronizedPrintf(viewer, " -- ");}
824: PetscViewerASCIISynchronizedPrintf(viewer, "(%D_%d)", point, rank);
825: if (firstPoint < 0) firstPoint = point;
826: }
827: /* Why doesn't this work? PetscViewerASCIISynchronizedPrintf(viewer, " -- cycle;\n"); */
828: PetscViewerASCIISynchronizedPrintf(viewer, " -- (%D_%d);\n", firstPoint, rank);
829: DMPlexRestoreTransitiveClosure(dm, c, PETSC_TRUE, &closureSize, &closure);
830: }
831: }
832: VecGetArray(coordinates, &coords);
833: for (c = cStart; c < cEnd; ++c) {
834: double ccoords[3] = {0.0, 0.0, 0.0};
835: PetscBool isLabeled = PETSC_FALSE;
836: PetscInt *closure = NULL;
837: PetscInt closureSize, dof, d, n = 0;
839: if (wp && !PetscBTLookup(wp,c - pStart)) continue;
840: DMPlexGetTransitiveClosure(dm, c, PETSC_TRUE, &closureSize, &closure);
841: PetscViewerASCIISynchronizedPrintf(viewer, "\\path (");
842: for (p = 0; p < closureSize*2; p += 2) {
843: const PetscInt point = closure[p];
844: PetscInt off;
846: if ((point < vStart) || (point >= vEnd)) continue;
847: PetscSectionGetDof(coordSection, point, &dof);
848: PetscSectionGetOffset(coordSection, point, &off);
849: for (d = 0; d < dof; ++d) {
850: tcoords[d] = (double) (scale*PetscRealPart(coords[off+d]));
851: tcoords[d] = PetscAbs(tcoords[d]) < 1e-10 ? 0.0 : tcoords[d];
852: }
853: /* Rotate coordinates since PGF makes z point out of the page instead of up */
854: if (dof == 3) {PetscReal tmp = tcoords[1]; tcoords[1] = tcoords[2]; tcoords[2] = -tmp;}
855: for (d = 0; d < dof; ++d) {ccoords[d] += tcoords[d];}
856: ++n;
857: }
858: for (d = 0; d < dof; ++d) {ccoords[d] /= n;}
859: DMPlexRestoreTransitiveClosure(dm, c, PETSC_TRUE, &closureSize, &closure);
860: for (d = 0; d < dof; ++d) {
861: if (d > 0) {PetscViewerASCIISynchronizedPrintf(viewer, ",");}
862: PetscViewerASCIISynchronizedPrintf(viewer, "%g", (double) ccoords[d]);
863: }
864: color = colors[rank%numColors];
865: for (l = 0; l < numLabels; ++l) {
866: PetscInt val;
867: DMGetLabelValue(dm, names[l], c, &val);
868: if (val >= 0) {color = lcolors[l%numLColors]; isLabeled = PETSC_TRUE; break;}
869: }
870: if (useNumbers) {
871: PetscViewerASCIISynchronizedPrintf(viewer, ") node(%D_%d) [draw,shape=circle,color=%s] {%D};\n", c, rank, color, c);
872: } else {
873: PetscViewerASCIISynchronizedPrintf(viewer, ") node(%D_%d) [fill,inner sep=%dpt,shape=circle,color=%s] {};\n", c, rank, !isLabeled ? 1 : 2, color);
874: }
875: }
876: VecRestoreArray(coordinates, &coords);
877: /* Plot edges */
878: if (plotEdges) {
879: VecGetArray(coordinates, &coords);
880: PetscViewerASCIIPrintf(viewer, "\\path\n");
881: for (e = eStart; e < eEnd; ++e) {
882: const PetscInt *cone;
883: PetscInt coneSize, offA, offB, dof, d;
885: if (wp && !PetscBTLookup(wp,e - pStart)) continue;
886: DMPlexGetConeSize(dm, e, &coneSize);
887: if (coneSize != 2) SETERRQ2(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Edge %D cone should have two vertices, not %D", e, coneSize);
888: DMPlexGetCone(dm, e, &cone);
889: PetscSectionGetDof(coordSection, cone[0], &dof);
890: PetscSectionGetOffset(coordSection, cone[0], &offA);
891: PetscSectionGetOffset(coordSection, cone[1], &offB);
892: PetscViewerASCIISynchronizedPrintf(viewer, "(");
893: for (d = 0; d < dof; ++d) {
894: tcoords[d] = (double) (0.5*scale*PetscRealPart(coords[offA+d]+coords[offB+d]));
895: tcoords[d] = PetscAbs(tcoords[d]) < 1e-10 ? 0.0 : tcoords[d];
896: }
897: /* Rotate coordinates since PGF makes z point out of the page instead of up */
898: if (dim == 3) {PetscReal tmp = tcoords[1]; tcoords[1] = tcoords[2]; tcoords[2] = -tmp;}
899: for (d = 0; d < dof; ++d) {
900: if (d > 0) {PetscViewerASCIISynchronizedPrintf(viewer, ",");}
901: PetscViewerASCIISynchronizedPrintf(viewer, "%g", (double)tcoords[d]);
902: }
903: color = colors[rank%numColors];
904: for (l = 0; l < numLabels; ++l) {
905: PetscInt val;
906: DMGetLabelValue(dm, names[l], v, &val);
907: if (val >= 0) {color = lcolors[l%numLColors]; break;}
908: }
909: PetscViewerASCIISynchronizedPrintf(viewer, ") node(%D_%d) [draw,shape=circle,color=%s] {%D} --\n", e, rank, color, e);
910: }
911: VecRestoreArray(coordinates, &coords);
912: PetscViewerFlush(viewer);
913: PetscViewerASCIIPrintf(viewer, "(0,0);\n");
914: }
915: PetscViewerFlush(viewer);
916: PetscViewerASCIIPopSynchronized(viewer);
917: PetscViewerASCIIPrintf(viewer, "\\end{tikzpicture}\n");
918: PetscViewerASCIIPrintf(viewer, "\\end{document}\n", name);
919: for (l = 0; l < numLabels; ++l) {PetscFree(names[l]);}
920: for (c = 0; c < numColors; ++c) {PetscFree(colors[c]);}
921: for (c = 0; c < numLColors; ++c) {PetscFree(lcolors[c]);}
922: PetscFree3(names, colors, lcolors);
923: PetscBTDestroy(&wp);
924: } else if (format == PETSC_VIEWER_LOAD_BALANCE) {
925: Vec cown,acown;
926: VecScatter sct;
927: ISLocalToGlobalMapping g2l;
928: IS gid,acis;
929: MPI_Comm comm,ncomm = MPI_COMM_NULL;
930: MPI_Group ggroup,ngroup;
931: PetscScalar *array,nid;
932: const PetscInt *idxs;
933: PetscInt *idxs2,*start,*adjacency,*work;
934: PetscInt64 lm[3],gm[3];
935: PetscInt i,c,cStart,cEnd,cum,numVertices,ect,ectn,cellHeight;
936: PetscMPIInt d1,d2,rank;
938: PetscObjectGetComm((PetscObject)dm,&comm);
939: MPI_Comm_rank(comm,&rank);
940: #if defined(PETSC_HAVE_MPI_PROCESS_SHARED_MEMORY)
941: MPI_Comm_split_type(comm,MPI_COMM_TYPE_SHARED,rank,MPI_INFO_NULL,&ncomm);
942: #endif
943: if (ncomm != MPI_COMM_NULL) {
944: MPI_Comm_group(comm,&ggroup);
945: MPI_Comm_group(ncomm,&ngroup);
946: d1 = 0;
947: MPI_Group_translate_ranks(ngroup,1,&d1,ggroup,&d2);
948: nid = d2;
949: MPI_Group_free(&ggroup);
950: MPI_Group_free(&ngroup);
951: MPI_Comm_free(&ncomm);
952: } else nid = 0.0;
954: /* Get connectivity */
955: DMPlexGetVTKCellHeight(dm,&cellHeight);
956: DMPlexCreatePartitionerGraph(dm,cellHeight,&numVertices,&start,&adjacency,&gid);
958: /* filter overlapped local cells */
959: DMPlexGetHeightStratum(dm,cellHeight,&cStart,&cEnd);
960: ISGetIndices(gid,&idxs);
961: ISGetLocalSize(gid,&cum);
962: PetscMalloc1(cum,&idxs2);
963: for (c = cStart, cum = 0; c < cEnd; c++) {
964: if (idxs[c-cStart] < 0) continue;
965: idxs2[cum++] = idxs[c-cStart];
966: }
967: ISRestoreIndices(gid,&idxs);
968: if (numVertices != cum) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_PLIB,"Unexpected %D != %D",numVertices,cum);
969: ISDestroy(&gid);
970: ISCreateGeneral(comm,numVertices,idxs2,PETSC_OWN_POINTER,&gid);
972: /* support for node-aware cell locality */
973: ISCreateGeneral(comm,start[numVertices],adjacency,PETSC_USE_POINTER,&acis);
974: VecCreateSeq(PETSC_COMM_SELF,start[numVertices],&acown);
975: VecCreateMPI(comm,numVertices,PETSC_DECIDE,&cown);
976: VecGetArray(cown,&array);
977: for (c = 0; c < numVertices; c++) array[c] = nid;
978: VecRestoreArray(cown,&array);
979: VecScatterCreate(cown,acis,acown,NULL,&sct);
980: VecScatterBegin(sct,cown,acown,INSERT_VALUES,SCATTER_FORWARD);
981: VecScatterEnd(sct,cown,acown,INSERT_VALUES,SCATTER_FORWARD);
982: ISDestroy(&acis);
983: VecScatterDestroy(&sct);
984: VecDestroy(&cown);
986: /* compute edgeCut */
987: for (c = 0, cum = 0; c < numVertices; c++) cum = PetscMax(cum,start[c+1]-start[c]);
988: PetscMalloc1(cum,&work);
989: ISLocalToGlobalMappingCreateIS(gid,&g2l);
990: ISLocalToGlobalMappingSetType(g2l,ISLOCALTOGLOBALMAPPINGHASH);
991: ISDestroy(&gid);
992: VecGetArray(acown,&array);
993: for (c = 0, ect = 0, ectn = 0; c < numVertices; c++) {
994: PetscInt totl;
996: totl = start[c+1]-start[c];
997: ISGlobalToLocalMappingApply(g2l,IS_GTOLM_MASK,totl,adjacency+start[c],NULL,work);
998: for (i = 0; i < totl; i++) {
999: if (work[i] < 0) {
1000: ect += 1;
1001: ectn += (array[i + start[c]] != nid) ? 0 : 1;
1002: }
1003: }
1004: }
1005: PetscFree(work);
1006: VecRestoreArray(acown,&array);
1007: lm[0] = numVertices > 0 ? numVertices : PETSC_MAX_INT;
1008: lm[1] = -numVertices;
1009: MPIU_Allreduce(lm,gm,2,MPIU_INT64,MPI_MIN,comm);
1010: PetscViewerASCIIPrintf(viewer," Cell balance: %.2f (max %D, min %D",-((double)gm[1])/((double)gm[0]),-(PetscInt)gm[1],(PetscInt)gm[0]);
1011: lm[0] = ect; /* edgeCut */
1012: lm[1] = ectn; /* node-aware edgeCut */
1013: lm[2] = numVertices > 0 ? 0 : 1; /* empty processes */
1014: MPIU_Allreduce(lm,gm,3,MPIU_INT64,MPI_SUM,comm);
1015: PetscViewerASCIIPrintf(viewer,", empty %D)\n",(PetscInt)gm[2]);
1016: #if defined(PETSC_HAVE_MPI_PROCESS_SHARED_MEMORY)
1017: PetscViewerASCIIPrintf(viewer," Edge Cut: %D (on node %.3f)\n",(PetscInt)(gm[0]/2),gm[0] ? ((double)(gm[1]))/((double)gm[0]) : 1.);
1018: #else
1019: PetscViewerASCIIPrintf(viewer," Edge Cut: %D (on node %.3f)\n",(PetscInt)(gm[0]/2),0.0);
1020: #endif
1021: ISLocalToGlobalMappingDestroy(&g2l);
1022: PetscFree(start);
1023: PetscFree(adjacency);
1024: VecDestroy(&acown);
1025: } else {
1026: const char *name;
1027: PetscInt *sizes, *hybsizes, *ghostsizes;
1028: PetscInt locDepth, depth, cellHeight, dim, d;
1029: PetscInt pStart, pEnd, p, gcStart, gcEnd, gcNum;
1030: PetscInt numLabels, l;
1031: DMPolytopeType ct0;
1032: MPI_Comm comm;
1033: PetscMPIInt size, rank;
1035: PetscObjectGetComm((PetscObject) dm, &comm);
1036: MPI_Comm_size(comm, &size);
1037: MPI_Comm_rank(comm, &rank);
1038: DMGetDimension(dm, &dim);
1039: DMPlexGetVTKCellHeight(dm, &cellHeight);
1040: PetscObjectGetName((PetscObject) dm, &name);
1041: if (name) {PetscViewerASCIIPrintf(viewer, "%s in %D dimension%s:\n", name, dim, dim == 1 ? "" : "s");}
1042: else {PetscViewerASCIIPrintf(viewer, "Mesh in %D dimension%s:\n", dim, dim == 1 ? "" : "s");}
1043: if (cellHeight) {PetscViewerASCIIPrintf(viewer, " Cells are at height %D\n", cellHeight);}
1044: DMPlexGetDepth(dm, &locDepth);
1045: MPIU_Allreduce(&locDepth, &depth, 1, MPIU_INT, MPI_MAX, comm);
1046: DMPlexGetGhostCellStratum(dm, &gcStart, &gcEnd);
1047: gcNum = gcEnd - gcStart;
1048: PetscCalloc3(size,&sizes,size,&hybsizes,size,&ghostsizes);
1049: for (d = 0; d <= depth; d++) {
1050: PetscInt Nc[2] = {0, 0}, ict;
1052: DMPlexGetDepthStratum(dm, d, &pStart, &pEnd);
1053: DMPlexGetCellType(dm, pStart, &ct0);
1054: ict = ct0;
1055: MPI_Bcast(&ict, 1, MPIU_INT, 0, comm);
1056: ct0 = (DMPolytopeType) ict;
1057: for (p = pStart; p < pEnd; ++p) {
1058: DMPolytopeType ct;
1060: DMPlexGetCellType(dm, p, &ct);
1061: if (ct == ct0) ++Nc[0];
1062: else ++Nc[1];
1063: }
1064: MPI_Gather(&Nc[0], 1, MPIU_INT, sizes, 1, MPIU_INT, 0, comm);
1065: MPI_Gather(&Nc[1], 1, MPIU_INT, hybsizes, 1, MPIU_INT, 0, comm);
1066: if (d == depth) {MPI_Gather(&gcNum, 1, MPIU_INT, ghostsizes, 1, MPIU_INT, 0, comm);}
1067: PetscViewerASCIIPrintf(viewer, " %D-cells:", (depth == 1) && d ? dim : d);
1068: for (p = 0; p < size; ++p) {
1069: if (!rank) {
1070: PetscViewerASCIIPrintf(viewer, " %D", sizes[p]+hybsizes[p]);
1071: if (hybsizes[p] > 0) {PetscViewerASCIIPrintf(viewer, " (%D)", hybsizes[p]);}
1072: if (ghostsizes[p] > 0) {PetscViewerASCIIPrintf(viewer, " [%D]", ghostsizes[p]);}
1073: }
1074: }
1075: PetscViewerASCIIPrintf(viewer, "\n");
1076: }
1077: PetscFree3(sizes,hybsizes,ghostsizes);
1078: DMGetNumLabels(dm, &numLabels);
1079: if (numLabels) {PetscViewerASCIIPrintf(viewer, "Labels:\n");}
1080: for (l = 0; l < numLabels; ++l) {
1081: DMLabel label;
1082: const char *name;
1083: IS valueIS;
1084: const PetscInt *values;
1085: PetscInt numValues, v;
1087: DMGetLabelName(dm, l, &name);
1088: DMGetLabel(dm, name, &label);
1089: DMLabelGetNumValues(label, &numValues);
1090: PetscViewerASCIIPrintf(viewer, " %s: %D strata with value/size (", name, numValues);
1091: DMLabelGetValueIS(label, &valueIS);
1092: ISGetIndices(valueIS, &values);
1093: PetscViewerASCIIUseTabs(viewer, PETSC_FALSE);
1094: for (v = 0; v < numValues; ++v) {
1095: PetscInt size;
1097: DMLabelGetStratumSize(label, values[v], &size);
1098: if (v > 0) {PetscViewerASCIIPrintf(viewer, ", ");}
1099: PetscViewerASCIIPrintf(viewer, "%D (%D)", values[v], size);
1100: }
1101: PetscViewerASCIIPrintf(viewer, ")\n");
1102: PetscViewerASCIIUseTabs(viewer, PETSC_TRUE);
1103: ISRestoreIndices(valueIS, &values);
1104: ISDestroy(&valueIS);
1105: }
1106: /* If no fields are specified, people do not want to see adjacency */
1107: if (dm->Nf) {
1108: PetscInt f;
1110: for (f = 0; f < dm->Nf; ++f) {
1111: const char *name;
1113: PetscObjectGetName(dm->fields[f].disc, &name);
1114: if (numLabels) {PetscViewerASCIIPrintf(viewer, "Field %s:\n", name);}
1115: PetscViewerASCIIPushTab(viewer);
1116: if (dm->fields[f].label) {DMLabelView(dm->fields[f].label, viewer);}
1117: if (dm->fields[f].adjacency[0]) {
1118: if (dm->fields[f].adjacency[1]) {PetscViewerASCIIPrintf(viewer, "adjacency FVM++\n");}
1119: else {PetscViewerASCIIPrintf(viewer, "adjacency FVM\n");}
1120: } else {
1121: if (dm->fields[f].adjacency[1]) {PetscViewerASCIIPrintf(viewer, "adjacency FEM\n");}
1122: else {PetscViewerASCIIPrintf(viewer, "adjacency FUNKY\n");}
1123: }
1124: PetscViewerASCIIPopTab(viewer);
1125: }
1126: }
1127: DMGetCoarseDM(dm, &cdm);
1128: if (cdm) {
1129: PetscViewerASCIIPushTab(viewer);
1130: DMPlexView_Ascii(cdm, viewer);
1131: PetscViewerASCIIPopTab(viewer);
1132: }
1133: }
1134: return(0);
1135: }
1137: static PetscErrorCode DMPlexDrawCell(DM dm, PetscDraw draw, PetscInt cell, const PetscScalar coords[])
1138: {
1139: DMPolytopeType ct;
1140: PetscMPIInt rank;
1144: MPI_Comm_rank(PetscObjectComm((PetscObject) dm), &rank);
1145: DMPlexGetCellType(dm, cell, &ct);
1146: switch (ct) {
1147: case DM_POLYTOPE_TRIANGLE:
1148: PetscDrawTriangle(draw, PetscRealPart(coords[0]), PetscRealPart(coords[1]), PetscRealPart(coords[2]), PetscRealPart(coords[3]), PetscRealPart(coords[4]), PetscRealPart(coords[5]),
1149: PETSC_DRAW_WHITE + rank % (PETSC_DRAW_BASIC_COLORS-2) + 2,
1150: PETSC_DRAW_WHITE + rank % (PETSC_DRAW_BASIC_COLORS-2) + 2,
1151: PETSC_DRAW_WHITE + rank % (PETSC_DRAW_BASIC_COLORS-2) + 2);
1152: PetscDrawLine(draw, PetscRealPart(coords[0]), PetscRealPart(coords[1]), PetscRealPart(coords[2]), PetscRealPart(coords[3]), PETSC_DRAW_BLACK);
1153: PetscDrawLine(draw, PetscRealPart(coords[2]), PetscRealPart(coords[3]), PetscRealPart(coords[4]), PetscRealPart(coords[5]), PETSC_DRAW_BLACK);
1154: PetscDrawLine(draw, PetscRealPart(coords[4]), PetscRealPart(coords[5]), PetscRealPart(coords[0]), PetscRealPart(coords[1]), PETSC_DRAW_BLACK);
1155: break;
1156: case DM_POLYTOPE_QUADRILATERAL:
1157: PetscDrawTriangle(draw, PetscRealPart(coords[0]), PetscRealPart(coords[1]), PetscRealPart(coords[2]), PetscRealPart(coords[3]), PetscRealPart(coords[4]), PetscRealPart(coords[5]),
1158: PETSC_DRAW_WHITE + rank % (PETSC_DRAW_BASIC_COLORS-2) + 2,
1159: PETSC_DRAW_WHITE + rank % (PETSC_DRAW_BASIC_COLORS-2) + 2,
1160: PETSC_DRAW_WHITE + rank % (PETSC_DRAW_BASIC_COLORS-2) + 2);
1161: PetscDrawTriangle(draw, PetscRealPart(coords[0]), PetscRealPart(coords[1]), PetscRealPart(coords[4]), PetscRealPart(coords[5]), PetscRealPart(coords[6]), PetscRealPart(coords[7]),
1162: PETSC_DRAW_WHITE + rank % (PETSC_DRAW_BASIC_COLORS-2) + 2,
1163: PETSC_DRAW_WHITE + rank % (PETSC_DRAW_BASIC_COLORS-2) + 2,
1164: PETSC_DRAW_WHITE + rank % (PETSC_DRAW_BASIC_COLORS-2) + 2);
1165: PetscDrawLine(draw, PetscRealPart(coords[0]), PetscRealPart(coords[1]), PetscRealPart(coords[2]), PetscRealPart(coords[3]), PETSC_DRAW_BLACK);
1166: PetscDrawLine(draw, PetscRealPart(coords[2]), PetscRealPart(coords[3]), PetscRealPart(coords[4]), PetscRealPart(coords[5]), PETSC_DRAW_BLACK);
1167: PetscDrawLine(draw, PetscRealPart(coords[4]), PetscRealPart(coords[5]), PetscRealPart(coords[6]), PetscRealPart(coords[7]), PETSC_DRAW_BLACK);
1168: PetscDrawLine(draw, PetscRealPart(coords[6]), PetscRealPart(coords[7]), PetscRealPart(coords[0]), PetscRealPart(coords[1]), PETSC_DRAW_BLACK);
1169: break;
1170: default: SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_SUP, "Cannot draw cells of type %s", DMPolytopeTypes[ct]);
1171: }
1172: return(0);
1173: }
1175: static PetscErrorCode DMPlexDrawCellHighOrder(DM dm, PetscDraw draw, PetscInt cell, const PetscScalar coords[], PetscInt edgeDiv, PetscReal refCoords[], PetscReal edgeCoords[])
1176: {
1177: DMPolytopeType ct;
1178: PetscReal centroid[2] = {0., 0.};
1179: PetscMPIInt rank;
1180: PetscInt fillColor, v, e, d;
1184: MPI_Comm_rank(PetscObjectComm((PetscObject) dm), &rank);
1185: DMPlexGetCellType(dm, cell, &ct);
1186: fillColor = PETSC_DRAW_WHITE + rank % (PETSC_DRAW_BASIC_COLORS-2) + 2;
1187: switch (ct) {
1188: case DM_POLYTOPE_TRIANGLE:
1189: {
1190: PetscReal refVertices[6] = {-1., -1., 1., -1., -1., 1.};
1192: for (v = 0; v < 3; ++v) {centroid[0] += PetscRealPart(coords[v*2+0])/3.;centroid[1] += PetscRealPart(coords[v*2+1])/3.;}
1193: for (e = 0; e < 3; ++e) {
1194: refCoords[0] = refVertices[e*2+0];
1195: refCoords[1] = refVertices[e*2+1];
1196: for (d = 1; d <= edgeDiv; ++d) {
1197: refCoords[d*2+0] = refCoords[0] + (refVertices[(e+1)%3 * 2 + 0] - refCoords[0])*d/edgeDiv;
1198: refCoords[d*2+1] = refCoords[1] + (refVertices[(e+1)%3 * 2 + 1] - refCoords[1])*d/edgeDiv;
1199: }
1200: DMPlexReferenceToCoordinates(dm, cell, edgeDiv+1, refCoords, edgeCoords);
1201: for (d = 0; d < edgeDiv; ++d) {
1202: PetscDrawTriangle(draw, centroid[0], centroid[1], edgeCoords[d*2+0], edgeCoords[d*2+1], edgeCoords[(d+1)*2+0], edgeCoords[(d+1)*2+1], fillColor, fillColor, fillColor);
1203: PetscDrawLine(draw, edgeCoords[d*2+0], edgeCoords[d*2+1], edgeCoords[(d+1)*2+0], edgeCoords[(d+1)*2+1], PETSC_DRAW_BLACK);
1204: }
1205: }
1206: }
1207: break;
1208: default: SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_SUP, "Cannot draw cells of type %s", DMPolytopeTypes[ct]);
1209: }
1210: return(0);
1211: }
1213: static PetscErrorCode DMPlexView_Draw(DM dm, PetscViewer viewer)
1214: {
1215: PetscDraw draw;
1216: DM cdm;
1217: PetscSection coordSection;
1218: Vec coordinates;
1219: const PetscScalar *coords;
1220: PetscReal xyl[2],xyr[2],bound[4] = {PETSC_MAX_REAL, PETSC_MAX_REAL, PETSC_MIN_REAL, PETSC_MIN_REAL};
1221: PetscReal *refCoords, *edgeCoords;
1222: PetscBool isnull, drawAffine = PETSC_TRUE;
1223: PetscInt dim, vStart, vEnd, cStart, cEnd, c, N, edgeDiv = 4;
1224: PetscErrorCode ierr;
1227: DMGetCoordinateDim(dm, &dim);
1228: if (dim != 2) SETERRQ1(PetscObjectComm((PetscObject) dm), PETSC_ERR_SUP, "Cannot draw meshes of dimension %D", dim);
1229: PetscOptionsGetBool(((PetscObject) dm)->options, ((PetscObject) dm)->prefix, "-dm_view_draw_affine", &drawAffine, NULL);
1230: if (!drawAffine) {PetscMalloc2((edgeDiv+1)*dim, &refCoords, (edgeDiv+1)*dim, &edgeCoords);}
1231: DMGetCoordinateDM(dm, &cdm);
1232: DMGetLocalSection(cdm, &coordSection);
1233: DMGetCoordinatesLocal(dm, &coordinates);
1234: DMPlexGetDepthStratum(dm, 0, &vStart, &vEnd);
1235: DMPlexGetHeightStratum(dm, 0, &cStart, &cEnd);
1237: PetscViewerDrawGetDraw(viewer, 0, &draw);
1238: PetscDrawIsNull(draw, &isnull);
1239: if (isnull) return(0);
1240: PetscDrawSetTitle(draw, "Mesh");
1242: VecGetLocalSize(coordinates, &N);
1243: VecGetArrayRead(coordinates, &coords);
1244: for (c = 0; c < N; c += dim) {
1245: bound[0] = PetscMin(bound[0], PetscRealPart(coords[c])); bound[2] = PetscMax(bound[2], PetscRealPart(coords[c]));
1246: bound[1] = PetscMin(bound[1], PetscRealPart(coords[c+1])); bound[3] = PetscMax(bound[3], PetscRealPart(coords[c+1]));
1247: }
1248: VecRestoreArrayRead(coordinates, &coords);
1249: MPIU_Allreduce(&bound[0],xyl,2,MPIU_REAL,MPIU_MIN,PetscObjectComm((PetscObject)dm));
1250: MPIU_Allreduce(&bound[2],xyr,2,MPIU_REAL,MPIU_MAX,PetscObjectComm((PetscObject)dm));
1251: PetscDrawSetCoordinates(draw, xyl[0], xyl[1], xyr[0], xyr[1]);
1252: PetscDrawClear(draw);
1254: for (c = cStart; c < cEnd; ++c) {
1255: PetscScalar *coords = NULL;
1256: PetscInt numCoords;
1258: DMPlexVecGetClosureAtDepth_Internal(dm, coordSection, coordinates, c, 0, &numCoords, &coords);
1259: if (drawAffine) {
1260: DMPlexDrawCell(dm, draw, c, coords);
1261: } else {
1262: DMPlexDrawCellHighOrder(dm, draw, c, coords, edgeDiv, refCoords, edgeCoords);
1263: }
1264: DMPlexVecRestoreClosure(dm, coordSection, coordinates, c, &numCoords, &coords);
1265: }
1266: if (!drawAffine) {PetscFree2(refCoords, edgeCoords);}
1267: PetscDrawFlush(draw);
1268: PetscDrawPause(draw);
1269: PetscDrawSave(draw);
1270: return(0);
1271: }
1273: #if defined(PETSC_HAVE_EXODUSII)
1274: #include <exodusII.h>
1275: #endif
1277: PetscErrorCode DMView_Plex(DM dm, PetscViewer viewer)
1278: {
1279: PetscBool iascii, ishdf5, isvtk, isdraw, flg, isglvis, isexodus;
1280: char name[PETSC_MAX_PATH_LEN];
1286: PetscObjectTypeCompare((PetscObject) viewer, PETSCVIEWERASCII, &iascii);
1287: PetscObjectTypeCompare((PetscObject) viewer, PETSCVIEWERVTK, &isvtk);
1288: PetscObjectTypeCompare((PetscObject) viewer, PETSCVIEWERHDF5, &ishdf5);
1289: PetscObjectTypeCompare((PetscObject) viewer, PETSCVIEWERDRAW, &isdraw);
1290: PetscObjectTypeCompare((PetscObject) viewer, PETSCVIEWERGLVIS, &isglvis);
1291: PetscObjectTypeCompare((PetscObject) viewer, PETSCVIEWEREXODUSII, &isexodus);
1292: if (iascii) {
1293: PetscViewerFormat format;
1294: PetscViewerGetFormat(viewer, &format);
1295: if (format == PETSC_VIEWER_ASCII_GLVIS) {
1296: DMPlexView_GLVis(dm, viewer);
1297: } else {
1298: DMPlexView_Ascii(dm, viewer);
1299: }
1300: } else if (ishdf5) {
1301: #if defined(PETSC_HAVE_HDF5)
1302: DMPlexView_HDF5_Internal(dm, viewer);
1303: #else
1304: SETERRQ(PetscObjectComm((PetscObject) dm), PETSC_ERR_SUP, "HDF5 not supported in this build.\nPlease reconfigure using --download-hdf5");
1305: #endif
1306: } else if (isvtk) {
1307: DMPlexVTKWriteAll((PetscObject) dm,viewer);
1308: } else if (isdraw) {
1309: DMPlexView_Draw(dm, viewer);
1310: } else if (isglvis) {
1311: DMPlexView_GLVis(dm, viewer);
1312: #if defined(PETSC_HAVE_EXODUSII)
1313: } else if (isexodus) {
1314: int exoid;
1315: PetscInt cStart, cEnd, c;
1317: DMCreateLabel(dm, "Cell Sets");
1318: DMPlexGetHeightStratum(dm, 0, &cStart, &cEnd);
1319: for (c = cStart; c < cEnd; ++c) {DMSetLabelValue(dm, "Cell Sets", c, 1);}
1320: PetscViewerExodusIIGetId(viewer, &exoid);
1321: DMPlexView_ExodusII_Internal(dm, exoid, 1);
1322: #endif
1323: } else {
1324: SETERRQ1(PetscObjectComm((PetscObject) dm), PETSC_ERR_SUP, "Viewer type %s not yet supported for DMPlex writing", ((PetscObject)viewer)->type_name);
1325: }
1326: /* Optionally view the partition */
1327: PetscOptionsHasName(((PetscObject) dm)->options, ((PetscObject) dm)->prefix, "-dm_partition_view", &flg);
1328: if (flg) {
1329: Vec ranks;
1330: DMPlexCreateRankField(dm, &ranks);
1331: VecView(ranks, viewer);
1332: VecDestroy(&ranks);
1333: }
1334: /* Optionally view a label */
1335: PetscOptionsGetString(((PetscObject) dm)->options, ((PetscObject) dm)->prefix, "-dm_label_view", name, sizeof(name), &flg);
1336: if (flg) {
1337: DMLabel label;
1338: Vec val;
1340: DMGetLabel(dm, name, &label);
1341: if (!label) SETERRQ1(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_WRONG, "Label %s provided to -dm_label_view does not exist in this DM", name);
1342: DMPlexCreateLabelField(dm, label, &val);
1343: VecView(val, viewer);
1344: VecDestroy(&val);
1345: }
1346: return(0);
1347: }
1349: PetscErrorCode DMLoad_Plex(DM dm, PetscViewer viewer)
1350: {
1351: PetscBool ishdf5;
1357: PetscObjectTypeCompare((PetscObject) viewer, PETSCVIEWERHDF5, &ishdf5);
1358: if (ishdf5) {
1359: #if defined(PETSC_HAVE_HDF5)
1360: PetscViewerFormat format;
1361: PetscViewerGetFormat(viewer, &format);
1362: if (format == PETSC_VIEWER_HDF5_XDMF || format == PETSC_VIEWER_HDF5_VIZ) {
1363: DMPlexLoad_HDF5_Xdmf_Internal(dm, viewer);
1364: } else if (format == PETSC_VIEWER_HDF5_PETSC || format == PETSC_VIEWER_DEFAULT || format == PETSC_VIEWER_NATIVE) {
1365: DMPlexLoad_HDF5_Internal(dm, viewer);
1366: } else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_SUP, "PetscViewerFormat %s not supported for HDF5 input.", PetscViewerFormats[format]);
1367: return(0);
1368: #else
1369: SETERRQ(PetscObjectComm((PetscObject) dm), PETSC_ERR_SUP, "HDF5 not supported in this build.\nPlease reconfigure using --download-hdf5");
1370: #endif
1371: } else SETERRQ1(PetscObjectComm((PetscObject) dm), PETSC_ERR_SUP, "Viewer type %s not yet supported for DMPlex loading", ((PetscObject)viewer)->type_name);
1372: }
1374: PetscErrorCode DMDestroy_Plex(DM dm)
1375: {
1376: DM_Plex *mesh = (DM_Plex*) dm->data;
1380: PetscObjectComposeFunction((PetscObject)dm,"DMSetUpGLVisViewer_C",NULL);
1381: PetscObjectComposeFunction((PetscObject)dm,"DMPlexInsertBoundaryValues_C", NULL);
1382: PetscObjectComposeFunction((PetscObject)dm,"DMCreateNeumannOverlap_C", NULL);
1383: if (--mesh->refct > 0) return(0);
1384: PetscSectionDestroy(&mesh->coneSection);
1385: PetscFree(mesh->cones);
1386: PetscFree(mesh->coneOrientations);
1387: PetscSectionDestroy(&mesh->supportSection);
1388: PetscSectionDestroy(&mesh->subdomainSection);
1389: PetscFree(mesh->supports);
1390: PetscFree(mesh->facesTmp);
1391: PetscFree(mesh->tetgenOpts);
1392: PetscFree(mesh->triangleOpts);
1393: PetscPartitionerDestroy(&mesh->partitioner);
1394: DMLabelDestroy(&mesh->subpointMap);
1395: ISDestroy(&mesh->subpointIS);
1396: ISDestroy(&mesh->globalVertexNumbers);
1397: ISDestroy(&mesh->globalCellNumbers);
1398: PetscSectionDestroy(&mesh->anchorSection);
1399: ISDestroy(&mesh->anchorIS);
1400: PetscSectionDestroy(&mesh->parentSection);
1401: PetscFree(mesh->parents);
1402: PetscFree(mesh->childIDs);
1403: PetscSectionDestroy(&mesh->childSection);
1404: PetscFree(mesh->children);
1405: DMDestroy(&mesh->referenceTree);
1406: PetscGridHashDestroy(&mesh->lbox);
1407: PetscFree(mesh->neighbors);
1408: /* This was originally freed in DMDestroy(), but that prevents reference counting of backend objects */
1409: PetscFree(mesh);
1410: return(0);
1411: }
1413: PetscErrorCode DMCreateMatrix_Plex(DM dm, Mat *J)
1414: {
1415: PetscSection sectionGlobal;
1416: PetscInt bs = -1, mbs;
1417: PetscInt localSize;
1418: PetscBool isShell, isBlock, isSeqBlock, isMPIBlock, isSymBlock, isSymSeqBlock, isSymMPIBlock, isMatIS;
1419: PetscErrorCode ierr;
1420: MatType mtype;
1421: ISLocalToGlobalMapping ltog;
1424: MatInitializePackage();
1425: mtype = dm->mattype;
1426: DMGetGlobalSection(dm, §ionGlobal);
1427: /* PetscSectionGetStorageSize(sectionGlobal, &localSize); */
1428: PetscSectionGetConstrainedStorageSize(sectionGlobal, &localSize);
1429: MatCreate(PetscObjectComm((PetscObject)dm), J);
1430: MatSetSizes(*J, localSize, localSize, PETSC_DETERMINE, PETSC_DETERMINE);
1431: MatSetType(*J, mtype);
1432: MatSetFromOptions(*J);
1433: MatGetBlockSize(*J, &mbs);
1434: if (mbs > 1) bs = mbs;
1435: PetscStrcmp(mtype, MATSHELL, &isShell);
1436: PetscStrcmp(mtype, MATBAIJ, &isBlock);
1437: PetscStrcmp(mtype, MATSEQBAIJ, &isSeqBlock);
1438: PetscStrcmp(mtype, MATMPIBAIJ, &isMPIBlock);
1439: PetscStrcmp(mtype, MATSBAIJ, &isSymBlock);
1440: PetscStrcmp(mtype, MATSEQSBAIJ, &isSymSeqBlock);
1441: PetscStrcmp(mtype, MATMPISBAIJ, &isSymMPIBlock);
1442: PetscStrcmp(mtype, MATIS, &isMatIS);
1443: if (!isShell) {
1444: PetscSection subSection;
1445: PetscBool fillMatrix = (PetscBool)(!dm->prealloc_only && !isMatIS);
1446: PetscInt *dnz, *onz, *dnzu, *onzu, bsLocal[2], bsMinMax[2], *ltogidx, lsize;
1447: PetscInt pStart, pEnd, p, dof, cdof;
1449: /* Set localtoglobalmapping on the matrix for MatSetValuesLocal() to work (it also creates the local matrices in case of MATIS) */
1450: if (isMatIS) { /* need a different l2g map than the one computed by DMGetLocalToGlobalMapping */
1451: PetscSection section;
1452: PetscInt size;
1454: DMGetLocalSection(dm, §ion);
1455: PetscSectionGetStorageSize(section, &size);
1456: PetscMalloc1(size,<ogidx);
1457: DMPlexGetSubdomainSection(dm, &subSection);
1458: } else {
1459: DMGetLocalToGlobalMapping(dm,<og);
1460: }
1461: PetscSectionGetChart(sectionGlobal, &pStart, &pEnd);
1462: for (p = pStart, lsize = 0; p < pEnd; ++p) {
1463: PetscInt bdof;
1465: PetscSectionGetDof(sectionGlobal, p, &dof);
1466: PetscSectionGetConstraintDof(sectionGlobal, p, &cdof);
1467: dof = dof < 0 ? -(dof+1) : dof;
1468: bdof = cdof && (dof-cdof) ? 1 : dof;
1469: if (dof) {
1470: if (bs < 0) {bs = bdof;}
1471: else if (bs != bdof) {bs = 1; if (!isMatIS) break;}
1472: }
1473: if (isMatIS) {
1474: PetscInt loff,c,off;
1475: PetscSectionGetOffset(subSection, p, &loff);
1476: PetscSectionGetOffset(sectionGlobal, p, &off);
1477: for (c = 0; c < dof-cdof; ++c, ++lsize) ltogidx[loff+c] = off > -1 ? off+c : -(off+1)+c;
1478: }
1479: }
1480: /* Must have same blocksize on all procs (some might have no points) */
1481: bsLocal[0] = bs < 0 ? PETSC_MAX_INT : bs; bsLocal[1] = bs;
1482: PetscGlobalMinMaxInt(PetscObjectComm((PetscObject) dm), bsLocal, bsMinMax);
1483: if (bsMinMax[0] != bsMinMax[1]) {bs = 1;}
1484: else {bs = bsMinMax[0];}
1485: bs = PetscMax(1,bs);
1486: if (isMatIS) { /* Must reduce indices by blocksize */
1487: PetscInt l;
1489: lsize = lsize/bs;
1490: if (bs > 1) for (l = 0; l < lsize; ++l) ltogidx[l] = ltogidx[l*bs]/bs;
1491: ISLocalToGlobalMappingCreate(PetscObjectComm((PetscObject)dm), bs, lsize, ltogidx, PETSC_OWN_POINTER, <og);
1492: }
1493: MatSetLocalToGlobalMapping(*J,ltog,ltog);
1494: if (isMatIS) {
1495: ISLocalToGlobalMappingDestroy(<og);
1496: }
1497: PetscCalloc4(localSize/bs, &dnz, localSize/bs, &onz, localSize/bs, &dnzu, localSize/bs, &onzu);
1498: DMPlexPreallocateOperator(dm, bs, dnz, onz, dnzu, onzu, *J, fillMatrix);
1499: PetscFree4(dnz, onz, dnzu, onzu);
1500: }
1501: MatSetDM(*J, dm);
1502: return(0);
1503: }
1505: /*@
1506: DMPlexGetSubdomainSection - Returns the section associated with the subdomain
1508: Not collective
1510: Input Parameter:
1511: . mesh - The DMPlex
1513: Output Parameters:
1514: . subsection - The subdomain section
1516: Level: developer
1518: .seealso:
1519: @*/
1520: PetscErrorCode DMPlexGetSubdomainSection(DM dm, PetscSection *subsection)
1521: {
1522: DM_Plex *mesh = (DM_Plex*) dm->data;
1527: if (!mesh->subdomainSection) {
1528: PetscSection section;
1529: PetscSF sf;
1531: PetscSFCreate(PETSC_COMM_SELF,&sf);
1532: DMGetLocalSection(dm,§ion);
1533: PetscSectionCreateGlobalSection(section,sf,PETSC_FALSE,PETSC_TRUE,&mesh->subdomainSection);
1534: PetscSFDestroy(&sf);
1535: }
1536: *subsection = mesh->subdomainSection;
1537: return(0);
1538: }
1540: /*@
1541: DMPlexGetChart - Return the interval for all mesh points [pStart, pEnd)
1543: Not collective
1545: Input Parameter:
1546: . mesh - The DMPlex
1548: Output Parameters:
1549: + pStart - The first mesh point
1550: - pEnd - The upper bound for mesh points
1552: Level: beginner
1554: .seealso: DMPlexCreate(), DMPlexSetChart()
1555: @*/
1556: PetscErrorCode DMPlexGetChart(DM dm, PetscInt *pStart, PetscInt *pEnd)
1557: {
1558: DM_Plex *mesh = (DM_Plex*) dm->data;
1563: PetscSectionGetChart(mesh->coneSection, pStart, pEnd);
1564: return(0);
1565: }
1567: /*@
1568: DMPlexSetChart - Set the interval for all mesh points [pStart, pEnd)
1570: Not collective
1572: Input Parameters:
1573: + mesh - The DMPlex
1574: . pStart - The first mesh point
1575: - pEnd - The upper bound for mesh points
1577: Output Parameters:
1579: Level: beginner
1581: .seealso: DMPlexCreate(), DMPlexGetChart()
1582: @*/
1583: PetscErrorCode DMPlexSetChart(DM dm, PetscInt pStart, PetscInt pEnd)
1584: {
1585: DM_Plex *mesh = (DM_Plex*) dm->data;
1590: PetscSectionSetChart(mesh->coneSection, pStart, pEnd);
1591: PetscSectionSetChart(mesh->supportSection, pStart, pEnd);
1592: return(0);
1593: }
1595: /*@
1596: DMPlexGetConeSize - Return the number of in-edges for this point in the DAG
1598: Not collective
1600: Input Parameters:
1601: + mesh - The DMPlex
1602: - p - The point, which must lie in the chart set with DMPlexSetChart()
1604: Output Parameter:
1605: . size - The cone size for point p
1607: Level: beginner
1609: .seealso: DMPlexCreate(), DMPlexSetConeSize(), DMPlexSetChart()
1610: @*/
1611: PetscErrorCode DMPlexGetConeSize(DM dm, PetscInt p, PetscInt *size)
1612: {
1613: DM_Plex *mesh = (DM_Plex*) dm->data;
1619: PetscSectionGetDof(mesh->coneSection, p, size);
1620: return(0);
1621: }
1623: /*@
1624: DMPlexSetConeSize - Set the number of in-edges for this point in the DAG
1626: Not collective
1628: Input Parameters:
1629: + mesh - The DMPlex
1630: . p - The point, which must lie in the chart set with DMPlexSetChart()
1631: - size - The cone size for point p
1633: Output Parameter:
1635: Note:
1636: This should be called after DMPlexSetChart().
1638: Level: beginner
1640: .seealso: DMPlexCreate(), DMPlexGetConeSize(), DMPlexSetChart()
1641: @*/
1642: PetscErrorCode DMPlexSetConeSize(DM dm, PetscInt p, PetscInt size)
1643: {
1644: DM_Plex *mesh = (DM_Plex*) dm->data;
1649: PetscSectionSetDof(mesh->coneSection, p, size);
1651: mesh->maxConeSize = PetscMax(mesh->maxConeSize, size);
1652: return(0);
1653: }
1655: /*@
1656: DMPlexAddConeSize - Add the given number of in-edges to this point in the DAG
1658: Not collective
1660: Input Parameters:
1661: + mesh - The DMPlex
1662: . p - The point, which must lie in the chart set with DMPlexSetChart()
1663: - size - The additional cone size for point p
1665: Output Parameter:
1667: Note:
1668: This should be called after DMPlexSetChart().
1670: Level: beginner
1672: .seealso: DMPlexCreate(), DMPlexSetConeSize(), DMPlexGetConeSize(), DMPlexSetChart()
1673: @*/
1674: PetscErrorCode DMPlexAddConeSize(DM dm, PetscInt p, PetscInt size)
1675: {
1676: DM_Plex *mesh = (DM_Plex*) dm->data;
1677: PetscInt csize;
1682: PetscSectionAddDof(mesh->coneSection, p, size);
1683: PetscSectionGetDof(mesh->coneSection, p, &csize);
1685: mesh->maxConeSize = PetscMax(mesh->maxConeSize, csize);
1686: return(0);
1687: }
1689: /*@C
1690: DMPlexGetCone - Return the points on the in-edges for this point in the DAG
1692: Not collective
1694: Input Parameters:
1695: + dm - The DMPlex
1696: - p - The point, which must lie in the chart set with DMPlexSetChart()
1698: Output Parameter:
1699: . cone - An array of points which are on the in-edges for point p
1701: Level: beginner
1703: Fortran Notes:
1704: Since it returns an array, this routine is only available in Fortran 90, and you must
1705: include petsc.h90 in your code.
1706: You must also call DMPlexRestoreCone() after you finish using the returned array.
1707: DMPlexRestoreCone() is not needed/available in C.
1709: .seealso: DMPlexGetConeSize(), DMPlexSetCone(), DMPlexGetConeTuple(), DMPlexSetChart()
1710: @*/
1711: PetscErrorCode DMPlexGetCone(DM dm, PetscInt p, const PetscInt *cone[])
1712: {
1713: DM_Plex *mesh = (DM_Plex*) dm->data;
1714: PetscInt off;
1720: PetscSectionGetOffset(mesh->coneSection, p, &off);
1721: *cone = &mesh->cones[off];
1722: return(0);
1723: }
1725: /*@C
1726: DMPlexGetConeTuple - Return the points on the in-edges of several points in the DAG
1728: Not collective
1730: Input Parameters:
1731: + dm - The DMPlex
1732: - p - The IS of points, which must lie in the chart set with DMPlexSetChart()
1734: Output Parameter:
1735: + pConesSection - PetscSection describing the layout of pCones
1736: - pCones - An array of points which are on the in-edges for the point set p
1738: Level: intermediate
1740: .seealso: DMPlexCreate(), DMPlexGetCone(), DMPlexGetConeRecursive(), DMPlexSetChart()
1741: @*/
1742: PetscErrorCode DMPlexGetConeTuple(DM dm, IS p, PetscSection *pConesSection, IS *pCones)
1743: {
1744: PetscSection cs, newcs;
1745: PetscInt *cones;
1746: PetscInt *newarr=NULL;
1747: PetscInt n;
1748: PetscErrorCode ierr;
1751: DMPlexGetCones(dm, &cones);
1752: DMPlexGetConeSection(dm, &cs);
1753: PetscSectionExtractDofsFromArray(cs, MPIU_INT, cones, p, &newcs, pCones ? ((void**)&newarr) : NULL);
1754: if (pConesSection) *pConesSection = newcs;
1755: if (pCones) {
1756: PetscSectionGetStorageSize(newcs, &n);
1757: ISCreateGeneral(PetscObjectComm((PetscObject)p), n, newarr, PETSC_OWN_POINTER, pCones);
1758: }
1759: return(0);
1760: }
1762: /*@
1763: DMPlexGetConeRecursiveVertices - Expand each given point into its cone points and do that recursively until we end up just with vertices.
1765: Not collective
1767: Input Parameters:
1768: + dm - The DMPlex
1769: - points - The IS of points, which must lie in the chart set with DMPlexSetChart()
1771: Output Parameter:
1772: . expandedPoints - An array of vertices recursively expanded from input points
1774: Level: advanced
1776: Notes:
1777: Like DMPlexGetConeRecursive but returns only the 0-depth IS (i.e. vertices only) and no sections.
1778: There is no corresponding Restore function, just call ISDestroy() on the returned IS to deallocate.
1780: .seealso: DMPlexCreate(), DMPlexGetCone(), DMPlexGetConeTuple(), DMPlexGetConeRecursive(), DMPlexRestoreConeRecursive(), DMPlexGetDepth()
1781: @*/
1782: PetscErrorCode DMPlexGetConeRecursiveVertices(DM dm, IS points, IS *expandedPoints)
1783: {
1784: IS *expandedPointsAll;
1785: PetscInt depth;
1786: PetscErrorCode ierr;
1792: DMPlexGetConeRecursive(dm, points, &depth, &expandedPointsAll, NULL);
1793: *expandedPoints = expandedPointsAll[0];
1794: PetscObjectReference((PetscObject)expandedPointsAll[0]);
1795: DMPlexRestoreConeRecursive(dm, points, &depth, &expandedPointsAll, NULL);
1796: return(0);
1797: }
1799: /*@
1800: DMPlexGetConeRecursive - Expand each given point into its cone points and do that recursively until we end up just with vertices (DAG points of depth 0, i.e. without cones).
1802: Not collective
1804: Input Parameters:
1805: + dm - The DMPlex
1806: - points - The IS of points, which must lie in the chart set with DMPlexSetChart()
1808: Output Parameter:
1809: + depth - (optional) Size of the output arrays, equal to DMPlex depth, returned by DMPlexGetDepth()
1810: . expandedPoints - (optional) An array of index sets with recursively expanded cones
1811: - sections - (optional) An array of sections which describe mappings from points to their cone points
1813: Level: advanced
1815: Notes:
1816: Like DMPlexGetConeTuple() but recursive.
1818: Array expandedPoints has size equal to depth. Each expandedPoints[d] contains DAG points with maximum depth d, recursively cone-wise expanded from the input points.
1819: For example, for d=0 it contains only vertices, for d=1 it can contain vertices and edges, etc.
1821: Array section has size equal to depth. Each PetscSection sections[d] realizes mapping from expandedPoints[d+1] (section points) to expandedPoints[d] (section dofs) as follows:
1822: (1) DAG points in expandedPoints[d+1] with depth d+1 to their cone points in expandedPoints[d];
1823: (2) DAG points in expandedPoints[d+1] with depth in [0,d] to the same points in expandedPoints[d].
1825: .seealso: DMPlexCreate(), DMPlexGetCone(), DMPlexGetConeTuple(), DMPlexRestoreConeRecursive(), DMPlexGetConeRecursiveVertices(), DMPlexGetDepth()
1826: @*/
1827: PetscErrorCode DMPlexGetConeRecursive(DM dm, IS points, PetscInt *depth, IS *expandedPoints[], PetscSection *sections[])
1828: {
1829: const PetscInt *arr0=NULL, *cone=NULL;
1830: PetscInt *arr=NULL, *newarr=NULL;
1831: PetscInt d, depth_, i, n, newn, cn, co, start, end;
1832: IS *expandedPoints_;
1833: PetscSection *sections_;
1834: PetscErrorCode ierr;
1842: ISGetLocalSize(points, &n);
1843: ISGetIndices(points, &arr0);
1844: DMPlexGetDepth(dm, &depth_);
1845: PetscCalloc1(depth_, &expandedPoints_);
1846: PetscCalloc1(depth_, §ions_);
1847: arr = (PetscInt*) arr0; /* this is ok because first generation of arr is not modified */
1848: for (d=depth_-1; d>=0; d--) {
1849: PetscSectionCreate(PETSC_COMM_SELF, §ions_[d]);
1850: PetscSectionSetChart(sections_[d], 0, n);
1851: for (i=0; i<n; i++) {
1852: DMPlexGetDepthStratum(dm, d+1, &start, &end);
1853: if (arr[i] >= start && arr[i] < end) {
1854: DMPlexGetConeSize(dm, arr[i], &cn);
1855: PetscSectionSetDof(sections_[d], i, cn);
1856: } else {
1857: PetscSectionSetDof(sections_[d], i, 1);
1858: }
1859: }
1860: PetscSectionSetUp(sections_[d]);
1861: PetscSectionGetStorageSize(sections_[d], &newn);
1862: PetscMalloc1(newn, &newarr);
1863: for (i=0; i<n; i++) {
1864: PetscSectionGetDof(sections_[d], i, &cn);
1865: PetscSectionGetOffset(sections_[d], i, &co);
1866: if (cn > 1) {
1867: DMPlexGetCone(dm, arr[i], &cone);
1868: PetscMemcpy(&newarr[co], cone, cn*sizeof(PetscInt));
1869: } else {
1870: newarr[co] = arr[i];
1871: }
1872: }
1873: ISCreateGeneral(PETSC_COMM_SELF, newn, newarr, PETSC_OWN_POINTER, &expandedPoints_[d]);
1874: arr = newarr;
1875: n = newn;
1876: }
1877: ISRestoreIndices(points, &arr0);
1878: *depth = depth_;
1879: if (expandedPoints) *expandedPoints = expandedPoints_;
1880: else {
1881: for (d=0; d<depth_; d++) {ISDestroy(&expandedPoints_[d]);}
1882: PetscFree(expandedPoints_);
1883: }
1884: if (sections) *sections = sections_;
1885: else {
1886: for (d=0; d<depth_; d++) {PetscSectionDestroy(§ions_[d]);}
1887: PetscFree(sections_);
1888: }
1889: return(0);
1890: }
1892: /*@
1893: DMPlexRestoreConeRecursive - Deallocates arrays created by DMPlexGetConeRecursive
1895: Not collective
1897: Input Parameters:
1898: + dm - The DMPlex
1899: - points - The IS of points, which must lie in the chart set with DMPlexSetChart()
1901: Output Parameter:
1902: + depth - (optional) Size of the output arrays, equal to DMPlex depth, returned by DMPlexGetDepth()
1903: . expandedPoints - (optional) An array of recursively expanded cones
1904: - sections - (optional) An array of sections which describe mappings from points to their cone points
1906: Level: advanced
1908: Notes:
1909: See DMPlexGetConeRecursive() for details.
1911: .seealso: DMPlexCreate(), DMPlexGetCone(), DMPlexGetConeTuple(), DMPlexGetConeRecursive(), DMPlexGetConeRecursiveVertices(), DMPlexGetDepth()
1912: @*/
1913: PetscErrorCode DMPlexRestoreConeRecursive(DM dm, IS points, PetscInt *depth, IS *expandedPoints[], PetscSection *sections[])
1914: {
1915: PetscInt d, depth_;
1916: PetscErrorCode ierr;
1919: DMPlexGetDepth(dm, &depth_);
1920: if (depth && *depth != depth_) SETERRQ(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "depth changed since last call to DMPlexGetConeRecursive");
1921: if (depth) *depth = 0;
1922: if (expandedPoints) {
1923: for (d=0; d<depth_; d++) {ISDestroy(&((*expandedPoints)[d]));}
1924: PetscFree(*expandedPoints);
1925: }
1926: if (sections) {
1927: for (d=0; d<depth_; d++) {PetscSectionDestroy(&((*sections)[d]));}
1928: PetscFree(*sections);
1929: }
1930: return(0);
1931: }
1933: /*@
1934: DMPlexSetCone - Set the points on the in-edges for this point in the DAG; that is these are the points that cover the specific point
1936: Not collective
1938: Input Parameters:
1939: + mesh - The DMPlex
1940: . p - The point, which must lie in the chart set with DMPlexSetChart()
1941: - cone - An array of points which are on the in-edges for point p
1943: Output Parameter:
1945: Note:
1946: This should be called after all calls to DMPlexSetConeSize() and DMSetUp().
1948: Developer Note: Why not call this DMPlexSetCover()
1950: Level: beginner
1952: .seealso: DMPlexCreate(), DMPlexGetCone(), DMPlexSetChart(), DMPlexSetConeSize(), DMSetUp(), DMPlexSetSupport(), DMPlexSetSupportSize()
1953: @*/
1954: PetscErrorCode DMPlexSetCone(DM dm, PetscInt p, const PetscInt cone[])
1955: {
1956: DM_Plex *mesh = (DM_Plex*) dm->data;
1957: PetscInt pStart, pEnd;
1958: PetscInt dof, off, c;
1963: PetscSectionGetChart(mesh->coneSection, &pStart, &pEnd);
1964: PetscSectionGetDof(mesh->coneSection, p, &dof);
1966: PetscSectionGetOffset(mesh->coneSection, p, &off);
1967: if ((p < pStart) || (p >= pEnd)) SETERRQ3(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_OUTOFRANGE, "Mesh point %D is not in the valid range [%D, %D)", p, pStart, pEnd);
1968: for (c = 0; c < dof; ++c) {
1969: if ((cone[c] < pStart) || (cone[c] >= pEnd)) SETERRQ3(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_OUTOFRANGE, "Cone point %D is not in the valid range [%D, %D)", cone[c], pStart, pEnd);
1970: mesh->cones[off+c] = cone[c];
1971: }
1972: return(0);
1973: }
1975: /*@C
1976: DMPlexGetConeOrientation - Return the orientations on the in-edges for this point in the DAG
1978: Not collective
1980: Input Parameters:
1981: + mesh - The DMPlex
1982: - p - The point, which must lie in the chart set with DMPlexSetChart()
1984: Output Parameter:
1985: . coneOrientation - An array of orientations which are on the in-edges for point p. An orientation is an
1986: integer giving the prescription for cone traversal. If it is negative, the cone is
1987: traversed in the opposite direction. Its value 'o', or if negative '-(o+1)', gives
1988: the index of the cone point on which to start.
1990: Level: beginner
1992: Fortran Notes:
1993: Since it returns an array, this routine is only available in Fortran 90, and you must
1994: include petsc.h90 in your code.
1995: You must also call DMPlexRestoreConeOrientation() after you finish using the returned array.
1996: DMPlexRestoreConeOrientation() is not needed/available in C.
1998: .seealso: DMPlexCreate(), DMPlexGetCone(), DMPlexSetCone(), DMPlexSetChart()
1999: @*/
2000: PetscErrorCode DMPlexGetConeOrientation(DM dm, PetscInt p, const PetscInt *coneOrientation[])
2001: {
2002: DM_Plex *mesh = (DM_Plex*) dm->data;
2003: PetscInt off;
2008: if (PetscDefined(USE_DEBUG)) {
2009: PetscInt dof;
2010: PetscSectionGetDof(mesh->coneSection, p, &dof);
2012: }
2013: PetscSectionGetOffset(mesh->coneSection, p, &off);
2015: *coneOrientation = &mesh->coneOrientations[off];
2016: return(0);
2017: }
2019: /*@
2020: DMPlexSetConeOrientation - Set the orientations on the in-edges for this point in the DAG
2022: Not collective
2024: Input Parameters:
2025: + mesh - The DMPlex
2026: . p - The point, which must lie in the chart set with DMPlexSetChart()
2027: - coneOrientation - An array of orientations which are on the in-edges for point p. An orientation is an
2028: integer giving the prescription for cone traversal. If it is negative, the cone is
2029: traversed in the opposite direction. Its value 'o', or if negative '-(o+1)', gives
2030: the index of the cone point on which to start.
2032: Output Parameter:
2034: Note:
2035: This should be called after all calls to DMPlexSetConeSize() and DMSetUp().
2037: Level: beginner
2039: .seealso: DMPlexCreate(), DMPlexGetConeOrientation(), DMPlexSetCone(), DMPlexSetChart(), DMPlexSetConeSize(), DMSetUp()
2040: @*/
2041: PetscErrorCode DMPlexSetConeOrientation(DM dm, PetscInt p, const PetscInt coneOrientation[])
2042: {
2043: DM_Plex *mesh = (DM_Plex*) dm->data;
2044: PetscInt pStart, pEnd;
2045: PetscInt dof, off, c;
2050: PetscSectionGetChart(mesh->coneSection, &pStart, &pEnd);
2051: PetscSectionGetDof(mesh->coneSection, p, &dof);
2053: PetscSectionGetOffset(mesh->coneSection, p, &off);
2054: if ((p < pStart) || (p >= pEnd)) SETERRQ3(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_OUTOFRANGE, "Mesh point %D is not in the valid range [%D, %D)", p, pStart, pEnd);
2055: for (c = 0; c < dof; ++c) {
2056: PetscInt cdof, o = coneOrientation[c];
2058: PetscSectionGetDof(mesh->coneSection, mesh->cones[off+c], &cdof);
2059: if (o && ((o < -(cdof+1)) || (o >= cdof))) SETERRQ3(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_OUTOFRANGE, "Cone orientation %D is not in the valid range [%D. %D)", o, -(cdof+1), cdof);
2060: mesh->coneOrientations[off+c] = o;
2061: }
2062: return(0);
2063: }
2065: /*@
2066: DMPlexInsertCone - Insert a point into the in-edges for the point p in the DAG
2068: Not collective
2070: Input Parameters:
2071: + mesh - The DMPlex
2072: . p - The point, which must lie in the chart set with DMPlexSetChart()
2073: . conePos - The local index in the cone where the point should be put
2074: - conePoint - The mesh point to insert
2076: Level: beginner
2078: .seealso: DMPlexCreate(), DMPlexGetCone(), DMPlexSetChart(), DMPlexSetConeSize(), DMSetUp()
2079: @*/
2080: PetscErrorCode DMPlexInsertCone(DM dm, PetscInt p, PetscInt conePos, PetscInt conePoint)
2081: {
2082: DM_Plex *mesh = (DM_Plex*) dm->data;
2083: PetscInt pStart, pEnd;
2084: PetscInt dof, off;
2089: PetscSectionGetChart(mesh->coneSection, &pStart, &pEnd);
2090: if ((p < pStart) || (p >= pEnd)) SETERRQ3(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_OUTOFRANGE, "Mesh point %D is not in the valid range [%D, %D)", p, pStart, pEnd);
2091: if ((conePoint < pStart) || (conePoint >= pEnd)) SETERRQ3(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_OUTOFRANGE, "Cone point %D is not in the valid range [%D, %D)", conePoint, pStart, pEnd);
2092: PetscSectionGetDof(mesh->coneSection, p, &dof);
2093: PetscSectionGetOffset(mesh->coneSection, p, &off);
2094: if ((conePos < 0) || (conePos >= dof)) SETERRQ3(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_OUTOFRANGE, "Cone position %D of point %D is not in the valid range [0, %D)", conePos, p, dof);
2095: mesh->cones[off+conePos] = conePoint;
2096: return(0);
2097: }
2099: /*@
2100: DMPlexInsertConeOrientation - Insert a point orientation for the in-edge for the point p in the DAG
2102: Not collective
2104: Input Parameters:
2105: + mesh - The DMPlex
2106: . p - The point, which must lie in the chart set with DMPlexSetChart()
2107: . conePos - The local index in the cone where the point should be put
2108: - coneOrientation - The point orientation to insert
2110: Level: beginner
2112: .seealso: DMPlexCreate(), DMPlexGetCone(), DMPlexSetChart(), DMPlexSetConeSize(), DMSetUp()
2113: @*/
2114: PetscErrorCode DMPlexInsertConeOrientation(DM dm, PetscInt p, PetscInt conePos, PetscInt coneOrientation)
2115: {
2116: DM_Plex *mesh = (DM_Plex*) dm->data;
2117: PetscInt pStart, pEnd;
2118: PetscInt dof, off;
2123: PetscSectionGetChart(mesh->coneSection, &pStart, &pEnd);
2124: if ((p < pStart) || (p >= pEnd)) SETERRQ3(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_OUTOFRANGE, "Mesh point %D is not in the valid range [%D, %D)", p, pStart, pEnd);
2125: PetscSectionGetDof(mesh->coneSection, p, &dof);
2126: PetscSectionGetOffset(mesh->coneSection, p, &off);
2127: if ((conePos < 0) || (conePos >= dof)) SETERRQ3(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_OUTOFRANGE, "Cone position %D of point %D is not in the valid range [0, %D)", conePos, p, dof);
2128: mesh->coneOrientations[off+conePos] = coneOrientation;
2129: return(0);
2130: }
2132: /*@
2133: DMPlexGetSupportSize - Return the number of out-edges for this point in the DAG
2135: Not collective
2137: Input Parameters:
2138: + mesh - The DMPlex
2139: - p - The point, which must lie in the chart set with DMPlexSetChart()
2141: Output Parameter:
2142: . size - The support size for point p
2144: Level: beginner
2146: .seealso: DMPlexCreate(), DMPlexSetConeSize(), DMPlexSetChart(), DMPlexGetConeSize()
2147: @*/
2148: PetscErrorCode DMPlexGetSupportSize(DM dm, PetscInt p, PetscInt *size)
2149: {
2150: DM_Plex *mesh = (DM_Plex*) dm->data;
2156: PetscSectionGetDof(mesh->supportSection, p, size);
2157: return(0);
2158: }
2160: /*@
2161: DMPlexSetSupportSize - Set the number of out-edges for this point in the DAG
2163: Not collective
2165: Input Parameters:
2166: + mesh - The DMPlex
2167: . p - The point, which must lie in the chart set with DMPlexSetChart()
2168: - size - The support size for point p
2170: Output Parameter:
2172: Note:
2173: This should be called after DMPlexSetChart().
2175: Level: beginner
2177: .seealso: DMPlexCreate(), DMPlexGetSupportSize(), DMPlexSetChart()
2178: @*/
2179: PetscErrorCode DMPlexSetSupportSize(DM dm, PetscInt p, PetscInt size)
2180: {
2181: DM_Plex *mesh = (DM_Plex*) dm->data;
2186: PetscSectionSetDof(mesh->supportSection, p, size);
2188: mesh->maxSupportSize = PetscMax(mesh->maxSupportSize, size);
2189: return(0);
2190: }
2192: /*@C
2193: DMPlexGetSupport - Return the points on the out-edges for this point in the DAG
2195: Not collective
2197: Input Parameters:
2198: + mesh - The DMPlex
2199: - p - The point, which must lie in the chart set with DMPlexSetChart()
2201: Output Parameter:
2202: . support - An array of points which are on the out-edges for point p
2204: Level: beginner
2206: Fortran Notes:
2207: Since it returns an array, this routine is only available in Fortran 90, and you must
2208: include petsc.h90 in your code.
2209: You must also call DMPlexRestoreSupport() after you finish using the returned array.
2210: DMPlexRestoreSupport() is not needed/available in C.
2212: .seealso: DMPlexGetSupportSize(), DMPlexSetSupport(), DMPlexGetCone(), DMPlexSetChart()
2213: @*/
2214: PetscErrorCode DMPlexGetSupport(DM dm, PetscInt p, const PetscInt *support[])
2215: {
2216: DM_Plex *mesh = (DM_Plex*) dm->data;
2217: PetscInt off;
2223: PetscSectionGetOffset(mesh->supportSection, p, &off);
2224: *support = &mesh->supports[off];
2225: return(0);
2226: }
2228: /*@
2229: DMPlexSetSupport - Set the points on the out-edges for this point in the DAG, that is the list of points that this point covers
2231: Not collective
2233: Input Parameters:
2234: + mesh - The DMPlex
2235: . p - The point, which must lie in the chart set with DMPlexSetChart()
2236: - support - An array of points which are on the out-edges for point p
2238: Output Parameter:
2240: Note:
2241: This should be called after all calls to DMPlexSetSupportSize() and DMSetUp().
2243: Level: beginner
2245: .seealso: DMPlexSetCone(), DMPlexSetConeSize(), DMPlexCreate(), DMPlexGetSupport(), DMPlexSetChart(), DMPlexSetSupportSize(), DMSetUp()
2246: @*/
2247: PetscErrorCode DMPlexSetSupport(DM dm, PetscInt p, const PetscInt support[])
2248: {
2249: DM_Plex *mesh = (DM_Plex*) dm->data;
2250: PetscInt pStart, pEnd;
2251: PetscInt dof, off, c;
2256: PetscSectionGetChart(mesh->supportSection, &pStart, &pEnd);
2257: PetscSectionGetDof(mesh->supportSection, p, &dof);
2259: PetscSectionGetOffset(mesh->supportSection, p, &off);
2260: if ((p < pStart) || (p >= pEnd)) SETERRQ3(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_OUTOFRANGE, "Mesh point %D is not in the valid range [%D, %D)", p, pStart, pEnd);
2261: for (c = 0; c < dof; ++c) {
2262: if ((support[c] < pStart) || (support[c] >= pEnd)) SETERRQ3(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_OUTOFRANGE, "Support point %D is not in the valid range [%D, %D)", support[c], pStart, pEnd);
2263: mesh->supports[off+c] = support[c];
2264: }
2265: return(0);
2266: }
2268: /*@
2269: DMPlexInsertSupport - Insert a point into the out-edges for the point p in the DAG
2271: Not collective
2273: Input Parameters:
2274: + mesh - The DMPlex
2275: . p - The point, which must lie in the chart set with DMPlexSetChart()
2276: . supportPos - The local index in the cone where the point should be put
2277: - supportPoint - The mesh point to insert
2279: Level: beginner
2281: .seealso: DMPlexCreate(), DMPlexGetCone(), DMPlexSetChart(), DMPlexSetConeSize(), DMSetUp()
2282: @*/
2283: PetscErrorCode DMPlexInsertSupport(DM dm, PetscInt p, PetscInt supportPos, PetscInt supportPoint)
2284: {
2285: DM_Plex *mesh = (DM_Plex*) dm->data;
2286: PetscInt pStart, pEnd;
2287: PetscInt dof, off;
2292: PetscSectionGetChart(mesh->supportSection, &pStart, &pEnd);
2293: PetscSectionGetDof(mesh->supportSection, p, &dof);
2294: PetscSectionGetOffset(mesh->supportSection, p, &off);
2295: if ((p < pStart) || (p >= pEnd)) SETERRQ3(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_OUTOFRANGE, "Mesh point %D is not in the valid range [%D, %D)", p, pStart, pEnd);
2296: if ((supportPoint < pStart) || (supportPoint >= pEnd)) SETERRQ3(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_OUTOFRANGE, "Support point %D is not in the valid range [%D, %D)", supportPoint, pStart, pEnd);
2297: if (supportPos >= dof) SETERRQ3(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_OUTOFRANGE, "Support position %D of point %D is not in the valid range [0, %D)", supportPos, p, dof);
2298: mesh->supports[off+supportPos] = supportPoint;
2299: return(0);
2300: }
2302: /*@C
2303: DMPlexGetTransitiveClosure - Return the points on the transitive closure of the in-edges or out-edges for this point in the DAG
2305: Not collective
2307: Input Parameters:
2308: + mesh - The DMPlex
2309: . p - The point, which must lie in the chart set with DMPlexSetChart()
2310: . useCone - PETSC_TRUE for in-edges, otherwise use out-edges
2311: - points - If points is NULL on input, internal storage will be returned, otherwise the provided array is used
2313: Output Parameters:
2314: + numPoints - The number of points in the closure, so points[] is of size 2*numPoints
2315: - points - The points and point orientations, interleaved as pairs [p0, o0, p1, o1, ...]
2317: Note:
2318: If using internal storage (points is NULL on input), each call overwrites the last output.
2320: Fortran Notes:
2321: Since it returns an array, this routine is only available in Fortran 90, and you must
2322: include petsc.h90 in your code.
2324: The numPoints argument is not present in the Fortran 90 binding since it is internal to the array.
2326: Level: beginner
2328: .seealso: DMPlexRestoreTransitiveClosure(), DMPlexCreate(), DMPlexSetCone(), DMPlexSetChart(), DMPlexGetCone()
2329: @*/
2330: PetscErrorCode DMPlexGetTransitiveClosure(DM dm, PetscInt p, PetscBool useCone, PetscInt *numPoints, PetscInt *points[])
2331: {
2332: DM_Plex *mesh = (DM_Plex*) dm->data;
2333: PetscInt *closure, *fifo;
2334: const PetscInt *tmp = NULL, *tmpO = NULL;
2335: PetscInt tmpSize, t;
2336: PetscInt depth = 0, maxSize;
2337: PetscInt closureSize = 2, fifoSize = 0, fifoStart = 0;
2338: PetscErrorCode ierr;
2342: DMPlexGetDepth(dm, &depth);
2343: /* This is only 1-level */
2344: if (useCone) {
2345: DMPlexGetConeSize(dm, p, &tmpSize);
2346: DMPlexGetCone(dm, p, &tmp);
2347: DMPlexGetConeOrientation(dm, p, &tmpO);
2348: } else {
2349: DMPlexGetSupportSize(dm, p, &tmpSize);
2350: DMPlexGetSupport(dm, p, &tmp);
2351: }
2352: if (depth == 1) {
2353: if (*points) {
2354: closure = *points;
2355: } else {
2356: maxSize = 2*(PetscMax(mesh->maxConeSize, mesh->maxSupportSize)+1);
2357: DMGetWorkArray(dm, maxSize, MPIU_INT, &closure);
2358: }
2359: closure[0] = p; closure[1] = 0;
2360: for (t = 0; t < tmpSize; ++t, closureSize += 2) {
2361: closure[closureSize] = tmp[t];
2362: closure[closureSize+1] = tmpO ? tmpO[t] : 0;
2363: }
2364: if (numPoints) *numPoints = closureSize/2;
2365: if (points) *points = closure;
2366: return(0);
2367: }
2368: {
2369: PetscInt c, coneSeries, s,supportSeries;
2371: c = mesh->maxConeSize;
2372: coneSeries = (c > 1) ? ((PetscPowInt(c,depth+1)-1)/(c-1)) : depth+1;
2373: s = mesh->maxSupportSize;
2374: supportSeries = (s > 1) ? ((PetscPowInt(s,depth+1)-1)/(s-1)) : depth+1;
2375: maxSize = 2*PetscMax(coneSeries,supportSeries);
2376: }
2377: DMGetWorkArray(dm, maxSize, MPIU_INT, &fifo);
2378: if (*points) {
2379: closure = *points;
2380: } else {
2381: DMGetWorkArray(dm, maxSize, MPIU_INT, &closure);
2382: }
2383: closure[0] = p; closure[1] = 0;
2384: for (t = 0; t < tmpSize; ++t, closureSize += 2, fifoSize += 2) {
2385: const PetscInt cp = tmp[t];
2386: const PetscInt co = tmpO ? tmpO[t] : 0;
2388: closure[closureSize] = cp;
2389: closure[closureSize+1] = co;
2390: fifo[fifoSize] = cp;
2391: fifo[fifoSize+1] = co;
2392: }
2393: /* Should kick out early when depth is reached, rather than checking all vertices for empty cones */
2394: while (fifoSize - fifoStart) {
2395: const PetscInt q = fifo[fifoStart];
2396: const PetscInt o = fifo[fifoStart+1];
2397: const PetscInt rev = o >= 0 ? 0 : 1;
2398: const PetscInt off = rev ? -(o+1) : o;
2400: if (useCone) {
2401: DMPlexGetConeSize(dm, q, &tmpSize);
2402: DMPlexGetCone(dm, q, &tmp);
2403: DMPlexGetConeOrientation(dm, q, &tmpO);
2404: } else {
2405: DMPlexGetSupportSize(dm, q, &tmpSize);
2406: DMPlexGetSupport(dm, q, &tmp);
2407: tmpO = NULL;
2408: }
2409: for (t = 0; t < tmpSize; ++t) {
2410: const PetscInt i = ((rev ? tmpSize-t : t) + off)%tmpSize;
2411: const PetscInt cp = tmp[i];
2412: /* Must propogate orientation: When we reverse orientation, we both reverse the direction of iteration and start at the other end of the chain. */
2413: /* HACK: It is worse to get the size here, than to change the interpretation of -(*+1)
2414: const PetscInt co = tmpO ? (rev ? -(tmpO[i]+1) : tmpO[i]) : 0; */
2415: PetscInt co = tmpO ? tmpO[i] : 0;
2416: PetscInt c;
2418: if (rev) {
2419: PetscInt childSize, coff;
2420: DMPlexGetConeSize(dm, cp, &childSize);
2421: coff = tmpO[i] < 0 ? -(tmpO[i]+1) : tmpO[i];
2422: co = childSize ? -(((coff+childSize-1)%childSize)+1) : 0;
2423: }
2424: /* Check for duplicate */
2425: for (c = 0; c < closureSize; c += 2) {
2426: if (closure[c] == cp) break;
2427: }
2428: if (c == closureSize) {
2429: closure[closureSize] = cp;
2430: closure[closureSize+1] = co;
2431: fifo[fifoSize] = cp;
2432: fifo[fifoSize+1] = co;
2433: closureSize += 2;
2434: fifoSize += 2;
2435: }
2436: }
2437: fifoStart += 2;
2438: }
2439: if (numPoints) *numPoints = closureSize/2;
2440: if (points) *points = closure;
2441: DMRestoreWorkArray(dm, maxSize, MPIU_INT, &fifo);
2442: return(0);
2443: }
2445: /*@C
2446: DMPlexGetTransitiveClosure_Internal - Return the points on the transitive closure of the in-edges or out-edges for this point in the DAG with a specified initial orientation
2448: Not collective
2450: Input Parameters:
2451: + mesh - The DMPlex
2452: . p - The point, which must lie in the chart set with DMPlexSetChart()
2453: . orientation - The orientation of the point
2454: . useCone - PETSC_TRUE for in-edges, otherwise use out-edges
2455: - points - If points is NULL on input, internal storage will be returned, otherwise the provided array is used
2457: Output Parameters:
2458: + numPoints - The number of points in the closure, so points[] is of size 2*numPoints
2459: - points - The points and point orientations, interleaved as pairs [p0, o0, p1, o1, ...]
2461: Note:
2462: If using internal storage (points is NULL on input), each call overwrites the last output.
2464: Fortran Notes:
2465: Since it returns an array, this routine is only available in Fortran 90, and you must
2466: include petsc.h90 in your code.
2468: The numPoints argument is not present in the Fortran 90 binding since it is internal to the array.
2470: Level: beginner
2472: .seealso: DMPlexRestoreTransitiveClosure(), DMPlexCreate(), DMPlexSetCone(), DMPlexSetChart(), DMPlexGetCone()
2473: @*/
2474: PetscErrorCode DMPlexGetTransitiveClosure_Internal(DM dm, PetscInt p, PetscInt ornt, PetscBool useCone, PetscInt *numPoints, PetscInt *points[])
2475: {
2476: DM_Plex *mesh = (DM_Plex*) dm->data;
2477: PetscInt *closure, *fifo;
2478: const PetscInt *tmp = NULL, *tmpO = NULL;
2479: PetscInt tmpSize, t;
2480: PetscInt depth = 0, maxSize;
2481: PetscInt closureSize = 2, fifoSize = 0, fifoStart = 0;
2482: PetscErrorCode ierr;
2486: DMPlexGetDepth(dm, &depth);
2487: /* This is only 1-level */
2488: if (useCone) {
2489: DMPlexGetConeSize(dm, p, &tmpSize);
2490: DMPlexGetCone(dm, p, &tmp);
2491: DMPlexGetConeOrientation(dm, p, &tmpO);
2492: } else {
2493: DMPlexGetSupportSize(dm, p, &tmpSize);
2494: DMPlexGetSupport(dm, p, &tmp);
2495: }
2496: if (depth == 1) {
2497: if (*points) {
2498: closure = *points;
2499: } else {
2500: maxSize = 2*(PetscMax(mesh->maxConeSize, mesh->maxSupportSize)+1);
2501: DMGetWorkArray(dm, maxSize, MPIU_INT, &closure);
2502: }
2503: closure[0] = p; closure[1] = ornt;
2504: for (t = 0; t < tmpSize; ++t, closureSize += 2) {
2505: const PetscInt i = ornt >= 0 ? (t+ornt)%tmpSize : (-(ornt+1) + tmpSize-t)%tmpSize;
2506: closure[closureSize] = tmp[i];
2507: closure[closureSize+1] = tmpO ? tmpO[i] : 0;
2508: }
2509: if (numPoints) *numPoints = closureSize/2;
2510: if (points) *points = closure;
2511: return(0);
2512: }
2513: {
2514: PetscInt c, coneSeries, s,supportSeries;
2516: c = mesh->maxConeSize;
2517: coneSeries = (c > 1) ? ((PetscPowInt(c,depth+1)-1)/(c-1)) : depth+1;
2518: s = mesh->maxSupportSize;
2519: supportSeries = (s > 1) ? ((PetscPowInt(s,depth+1)-1)/(s-1)) : depth+1;
2520: maxSize = 2*PetscMax(coneSeries,supportSeries);
2521: }
2522: DMGetWorkArray(dm, maxSize, MPIU_INT, &fifo);
2523: if (*points) {
2524: closure = *points;
2525: } else {
2526: DMGetWorkArray(dm, maxSize, MPIU_INT, &closure);
2527: }
2528: closure[0] = p; closure[1] = ornt;
2529: for (t = 0; t < tmpSize; ++t, closureSize += 2, fifoSize += 2) {
2530: const PetscInt i = ornt >= 0 ? (t+ornt)%tmpSize : (-(ornt+1) + tmpSize-t)%tmpSize;
2531: const PetscInt cp = tmp[i];
2532: PetscInt co = tmpO ? tmpO[i] : 0;
2534: if (ornt < 0) {
2535: PetscInt childSize, coff;
2536: DMPlexGetConeSize(dm, cp, &childSize);
2537: coff = co < 0 ? -(tmpO[i]+1) : tmpO[i];
2538: co = childSize ? -(((coff+childSize-1)%childSize)+1) : 0;
2539: }
2540: closure[closureSize] = cp;
2541: closure[closureSize+1] = co;
2542: fifo[fifoSize] = cp;
2543: fifo[fifoSize+1] = co;
2544: }
2545: /* Should kick out early when depth is reached, rather than checking all vertices for empty cones */
2546: while (fifoSize - fifoStart) {
2547: const PetscInt q = fifo[fifoStart];
2548: const PetscInt o = fifo[fifoStart+1];
2549: const PetscInt rev = o >= 0 ? 0 : 1;
2550: const PetscInt off = rev ? -(o+1) : o;
2552: if (useCone) {
2553: DMPlexGetConeSize(dm, q, &tmpSize);
2554: DMPlexGetCone(dm, q, &tmp);
2555: DMPlexGetConeOrientation(dm, q, &tmpO);
2556: } else {
2557: DMPlexGetSupportSize(dm, q, &tmpSize);
2558: DMPlexGetSupport(dm, q, &tmp);
2559: tmpO = NULL;
2560: }
2561: for (t = 0; t < tmpSize; ++t) {
2562: const PetscInt i = ((rev ? tmpSize-t : t) + off)%tmpSize;
2563: const PetscInt cp = tmp[i];
2564: /* Must propogate orientation: When we reverse orientation, we both reverse the direction of iteration and start at the other end of the chain. */
2565: /* HACK: It is worse to get the size here, than to change the interpretation of -(*+1)
2566: const PetscInt co = tmpO ? (rev ? -(tmpO[i]+1) : tmpO[i]) : 0; */
2567: PetscInt co = tmpO ? tmpO[i] : 0;
2568: PetscInt c;
2570: if (rev) {
2571: PetscInt childSize, coff;
2572: DMPlexGetConeSize(dm, cp, &childSize);
2573: coff = tmpO[i] < 0 ? -(tmpO[i]+1) : tmpO[i];
2574: co = childSize ? -(((coff+childSize-1)%childSize)+1) : 0;
2575: }
2576: /* Check for duplicate */
2577: for (c = 0; c < closureSize; c += 2) {
2578: if (closure[c] == cp) break;
2579: }
2580: if (c == closureSize) {
2581: closure[closureSize] = cp;
2582: closure[closureSize+1] = co;
2583: fifo[fifoSize] = cp;
2584: fifo[fifoSize+1] = co;
2585: closureSize += 2;
2586: fifoSize += 2;
2587: }
2588: }
2589: fifoStart += 2;
2590: }
2591: if (numPoints) *numPoints = closureSize/2;
2592: if (points) *points = closure;
2593: DMRestoreWorkArray(dm, maxSize, MPIU_INT, &fifo);
2594: return(0);
2595: }
2597: /*@C
2598: DMPlexRestoreTransitiveClosure - Restore the array of points on the transitive closure of the in-edges or out-edges for this point in the DAG
2600: Not collective
2602: Input Parameters:
2603: + mesh - The DMPlex
2604: . p - The point, which must lie in the chart set with DMPlexSetChart()
2605: . useCone - PETSC_TRUE for in-edges, otherwise use out-edges
2606: . numPoints - The number of points in the closure, so points[] is of size 2*numPoints, zeroed on exit
2607: - points - The points and point orientations, interleaved as pairs [p0, o0, p1, o1, ...], zeroed on exit
2609: Note:
2610: If not using internal storage (points is not NULL on input), this call is unnecessary
2612: Fortran Notes:
2613: Since it returns an array, this routine is only available in Fortran 90, and you must
2614: include petsc.h90 in your code.
2616: The numPoints argument is not present in the Fortran 90 binding since it is internal to the array.
2618: Level: beginner
2620: .seealso: DMPlexGetTransitiveClosure(), DMPlexCreate(), DMPlexSetCone(), DMPlexSetChart(), DMPlexGetCone()
2621: @*/
2622: PetscErrorCode DMPlexRestoreTransitiveClosure(DM dm, PetscInt p, PetscBool useCone, PetscInt *numPoints, PetscInt *points[])
2623: {
2630: DMRestoreWorkArray(dm, 0, MPIU_INT, points);
2631: if (numPoints) *numPoints = 0;
2632: return(0);
2633: }
2635: /*@
2636: DMPlexGetMaxSizes - Return the maximum number of in-edges (cone) and out-edges (support) for any point in the DAG
2638: Not collective
2640: Input Parameter:
2641: . mesh - The DMPlex
2643: Output Parameters:
2644: + maxConeSize - The maximum number of in-edges
2645: - maxSupportSize - The maximum number of out-edges
2647: Level: beginner
2649: .seealso: DMPlexCreate(), DMPlexSetConeSize(), DMPlexSetChart()
2650: @*/
2651: PetscErrorCode DMPlexGetMaxSizes(DM dm, PetscInt *maxConeSize, PetscInt *maxSupportSize)
2652: {
2653: DM_Plex *mesh = (DM_Plex*) dm->data;
2657: if (maxConeSize) *maxConeSize = mesh->maxConeSize;
2658: if (maxSupportSize) *maxSupportSize = mesh->maxSupportSize;
2659: return(0);
2660: }
2662: PetscErrorCode DMSetUp_Plex(DM dm)
2663: {
2664: DM_Plex *mesh = (DM_Plex*) dm->data;
2665: PetscInt size;
2670: PetscSectionSetUp(mesh->coneSection);
2671: PetscSectionGetStorageSize(mesh->coneSection, &size);
2672: PetscMalloc1(size, &mesh->cones);
2673: PetscCalloc1(size, &mesh->coneOrientations);
2674: PetscLogObjectMemory((PetscObject) dm, size*2*sizeof(PetscInt));
2675: if (mesh->maxSupportSize) {
2676: PetscSectionSetUp(mesh->supportSection);
2677: PetscSectionGetStorageSize(mesh->supportSection, &size);
2678: PetscMalloc1(size, &mesh->supports);
2679: PetscLogObjectMemory((PetscObject) dm, size*sizeof(PetscInt));
2680: }
2681: return(0);
2682: }
2684: PetscErrorCode DMCreateSubDM_Plex(DM dm, PetscInt numFields, const PetscInt fields[], IS *is, DM *subdm)
2685: {
2689: if (subdm) {DMClone(dm, subdm);}
2690: DMCreateSectionSubDM(dm, numFields, fields, is, subdm);
2691: if (subdm) {(*subdm)->useNatural = dm->useNatural;}
2692: if (dm->useNatural && dm->sfMigration) {
2693: PetscSF sfMigrationInv,sfNatural;
2694: PetscSection section, sectionSeq;
2696: (*subdm)->sfMigration = dm->sfMigration;
2697: PetscObjectReference((PetscObject) dm->sfMigration);
2698: DMGetLocalSection((*subdm), §ion);
2699: PetscSFCreateInverseSF((*subdm)->sfMigration, &sfMigrationInv);
2700: PetscSectionCreate(PetscObjectComm((PetscObject) (*subdm)), §ionSeq);
2701: PetscSFDistributeSection(sfMigrationInv, section, NULL, sectionSeq);
2703: DMPlexCreateGlobalToNaturalSF(*subdm, sectionSeq, (*subdm)->sfMigration, &sfNatural);
2704: (*subdm)->sfNatural = sfNatural;
2705: PetscSectionDestroy(§ionSeq);
2706: PetscSFDestroy(&sfMigrationInv);
2707: }
2708: return(0);
2709: }
2711: PetscErrorCode DMCreateSuperDM_Plex(DM dms[], PetscInt len, IS **is, DM *superdm)
2712: {
2714: PetscInt i = 0;
2717: DMClone(dms[0], superdm);
2718: DMCreateSectionSuperDM(dms, len, is, superdm);
2719: (*superdm)->useNatural = PETSC_FALSE;
2720: for (i = 0; i < len; i++){
2721: if (dms[i]->useNatural && dms[i]->sfMigration) {
2722: PetscSF sfMigrationInv,sfNatural;
2723: PetscSection section, sectionSeq;
2725: (*superdm)->sfMigration = dms[i]->sfMigration;
2726: PetscObjectReference((PetscObject) dms[i]->sfMigration);
2727: (*superdm)->useNatural = PETSC_TRUE;
2728: DMGetLocalSection((*superdm), §ion);
2729: PetscSFCreateInverseSF((*superdm)->sfMigration, &sfMigrationInv);
2730: PetscSectionCreate(PetscObjectComm((PetscObject) (*superdm)), §ionSeq);
2731: PetscSFDistributeSection(sfMigrationInv, section, NULL, sectionSeq);
2733: DMPlexCreateGlobalToNaturalSF(*superdm, sectionSeq, (*superdm)->sfMigration, &sfNatural);
2734: (*superdm)->sfNatural = sfNatural;
2735: PetscSectionDestroy(§ionSeq);
2736: PetscSFDestroy(&sfMigrationInv);
2737: break;
2738: }
2739: }
2740: return(0);
2741: }
2743: /*@
2744: DMPlexSymmetrize - Create support (out-edge) information from cone (in-edge) information
2746: Not collective
2748: Input Parameter:
2749: . mesh - The DMPlex
2751: Output Parameter:
2753: Note:
2754: This should be called after all calls to DMPlexSetCone()
2756: Level: beginner
2758: .seealso: DMPlexCreate(), DMPlexSetChart(), DMPlexSetConeSize(), DMPlexSetCone()
2759: @*/
2760: PetscErrorCode DMPlexSymmetrize(DM dm)
2761: {
2762: DM_Plex *mesh = (DM_Plex*) dm->data;
2763: PetscInt *offsets;
2764: PetscInt supportSize;
2765: PetscInt pStart, pEnd, p;
2770: if (mesh->supports) SETERRQ(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONGSTATE, "Supports were already setup in this DMPlex");
2771: PetscLogEventBegin(DMPLEX_Symmetrize,dm,0,0,0);
2772: /* Calculate support sizes */
2773: DMPlexGetChart(dm, &pStart, &pEnd);
2774: for (p = pStart; p < pEnd; ++p) {
2775: PetscInt dof, off, c;
2777: PetscSectionGetDof(mesh->coneSection, p, &dof);
2778: PetscSectionGetOffset(mesh->coneSection, p, &off);
2779: for (c = off; c < off+dof; ++c) {
2780: PetscSectionAddDof(mesh->supportSection, mesh->cones[c], 1);
2781: }
2782: }
2783: for (p = pStart; p < pEnd; ++p) {
2784: PetscInt dof;
2786: PetscSectionGetDof(mesh->supportSection, p, &dof);
2788: mesh->maxSupportSize = PetscMax(mesh->maxSupportSize, dof);
2789: }
2790: PetscSectionSetUp(mesh->supportSection);
2791: /* Calculate supports */
2792: PetscSectionGetStorageSize(mesh->supportSection, &supportSize);
2793: PetscMalloc1(supportSize, &mesh->supports);
2794: PetscCalloc1(pEnd - pStart, &offsets);
2795: for (p = pStart; p < pEnd; ++p) {
2796: PetscInt dof, off, c;
2798: PetscSectionGetDof(mesh->coneSection, p, &dof);
2799: PetscSectionGetOffset(mesh->coneSection, p, &off);
2800: for (c = off; c < off+dof; ++c) {
2801: const PetscInt q = mesh->cones[c];
2802: PetscInt offS;
2804: PetscSectionGetOffset(mesh->supportSection, q, &offS);
2806: mesh->supports[offS+offsets[q]] = p;
2807: ++offsets[q];
2808: }
2809: }
2810: PetscFree(offsets);
2811: PetscLogEventEnd(DMPLEX_Symmetrize,dm,0,0,0);
2812: return(0);
2813: }
2815: static PetscErrorCode DMPlexCreateDepthStratum(DM dm, DMLabel label, PetscInt depth, PetscInt pStart, PetscInt pEnd)
2816: {
2817: IS stratumIS;
2821: if (pStart >= pEnd) return(0);
2822: if (PetscDefined(USE_DEBUG)) {
2823: PetscInt qStart, qEnd, numLevels, level;
2824: PetscBool overlap = PETSC_FALSE;
2825: DMLabelGetNumValues(label, &numLevels);
2826: for (level = 0; level < numLevels; level++) {
2827: DMLabelGetStratumBounds(label, level, &qStart, &qEnd);
2828: if ((pStart >= qStart && pStart < qEnd) || (pEnd > qStart && pEnd <= qEnd)) {overlap = PETSC_TRUE; break;}
2829: }
2830: if (overlap) SETERRQ6(PETSC_COMM_SELF, PETSC_ERR_PLIB, "New depth %D range [%D,%D) overlaps with depth %D range [%D,%D)", depth, pStart, pEnd, level, qStart, qEnd);
2831: }
2832: ISCreateStride(PETSC_COMM_SELF, pEnd-pStart, pStart, 1, &stratumIS);
2833: DMLabelSetStratumIS(label, depth, stratumIS);
2834: ISDestroy(&stratumIS);
2835: return(0);
2836: }
2838: /*@
2839: DMPlexStratify - The DAG for most topologies is a graded poset (https://en.wikipedia.org/wiki/Graded_poset), and
2840: can be illustrated by a Hasse Diagram (https://en.wikipedia.org/wiki/Hasse_diagram). The strata group all points of the
2841: same grade, and this function calculates the strata. This grade can be seen as the height (or depth) of the point in
2842: the DAG.
2844: Collective on dm
2846: Input Parameter:
2847: . mesh - The DMPlex
2849: Output Parameter:
2851: Notes:
2852: Concretely, DMPlexStratify() creates a new label named "depth" containing the depth in the DAG of each point. For cell-vertex
2853: meshes, vertices are depth 0 and cells are depth 1. For fully interpolated meshes, depth 0 for vertices, 1 for edges, and so on
2854: until cells have depth equal to the dimension of the mesh. The depth label can be accessed through DMPlexGetDepthLabel() or DMPlexGetDepthStratum(), or
2855: manually via DMGetLabel(). The height is defined implicitly by height = maxDimension - depth, and can be accessed
2856: via DMPlexGetHeightStratum(). For example, cells have height 0 and faces have height 1.
2858: The depth of a point is calculated by executing a breadth-first search (BFS) on the DAG. This could produce surprising results
2859: if run on a partially interpolated mesh, meaning one that had some edges and faces, but not others. For example, suppose that
2860: we had a mesh consisting of one triangle (c0) and three vertices (v0, v1, v2), and only one edge is on the boundary so we choose
2861: to interpolate only that one (e0), so that
2862: $ cone(c0) = {e0, v2}
2863: $ cone(e0) = {v0, v1}
2864: If DMPlexStratify() is run on this mesh, it will give depths
2865: $ depth 0 = {v0, v1, v2}
2866: $ depth 1 = {e0, c0}
2867: where the triangle has been given depth 1, instead of 2, because it is reachable from vertex v2.
2869: DMPlexStratify() should be called after all calls to DMPlexSymmetrize()
2871: Level: beginner
2873: .seealso: DMPlexCreate(), DMPlexSymmetrize(), DMPlexComputeCellTypes()
2874: @*/
2875: PetscErrorCode DMPlexStratify(DM dm)
2876: {
2877: DM_Plex *mesh = (DM_Plex*) dm->data;
2878: DMLabel label;
2879: PetscInt pStart, pEnd, p;
2880: PetscInt numRoots = 0, numLeaves = 0;
2885: PetscLogEventBegin(DMPLEX_Stratify,dm,0,0,0);
2887: /* Create depth label */
2888: DMPlexGetChart(dm, &pStart, &pEnd);
2889: DMCreateLabel(dm, "depth");
2890: DMPlexGetDepthLabel(dm, &label);
2892: {
2893: /* Initialize roots and count leaves */
2894: PetscInt sMin = PETSC_MAX_INT;
2895: PetscInt sMax = PETSC_MIN_INT;
2896: PetscInt coneSize, supportSize;
2898: for (p = pStart; p < pEnd; ++p) {
2899: DMPlexGetConeSize(dm, p, &coneSize);
2900: DMPlexGetSupportSize(dm, p, &supportSize);
2901: if (!coneSize && supportSize) {
2902: sMin = PetscMin(p, sMin);
2903: sMax = PetscMax(p, sMax);
2904: ++numRoots;
2905: } else if (!supportSize && coneSize) {
2906: ++numLeaves;
2907: } else if (!supportSize && !coneSize) {
2908: /* Isolated points */
2909: sMin = PetscMin(p, sMin);
2910: sMax = PetscMax(p, sMax);
2911: }
2912: }
2913: DMPlexCreateDepthStratum(dm, label, 0, sMin, sMax+1);
2914: }
2916: if (numRoots + numLeaves == (pEnd - pStart)) {
2917: PetscInt sMin = PETSC_MAX_INT;
2918: PetscInt sMax = PETSC_MIN_INT;
2919: PetscInt coneSize, supportSize;
2921: for (p = pStart; p < pEnd; ++p) {
2922: DMPlexGetConeSize(dm, p, &coneSize);
2923: DMPlexGetSupportSize(dm, p, &supportSize);
2924: if (!supportSize && coneSize) {
2925: sMin = PetscMin(p, sMin);
2926: sMax = PetscMax(p, sMax);
2927: }
2928: }
2929: DMPlexCreateDepthStratum(dm, label, 1, sMin, sMax+1);
2930: } else {
2931: PetscInt level = 0;
2932: PetscInt qStart, qEnd, q;
2934: DMLabelGetStratumBounds(label, level, &qStart, &qEnd);
2935: while (qEnd > qStart) {
2936: PetscInt sMin = PETSC_MAX_INT;
2937: PetscInt sMax = PETSC_MIN_INT;
2939: for (q = qStart; q < qEnd; ++q) {
2940: const PetscInt *support;
2941: PetscInt supportSize, s;
2943: DMPlexGetSupportSize(dm, q, &supportSize);
2944: DMPlexGetSupport(dm, q, &support);
2945: for (s = 0; s < supportSize; ++s) {
2946: sMin = PetscMin(support[s], sMin);
2947: sMax = PetscMax(support[s], sMax);
2948: }
2949: }
2950: DMLabelGetNumValues(label, &level);
2951: DMPlexCreateDepthStratum(dm, label, level, sMin, sMax+1);
2952: DMLabelGetStratumBounds(label, level, &qStart, &qEnd);
2953: }
2954: }
2955: { /* just in case there is an empty process */
2956: PetscInt numValues, maxValues = 0, v;
2958: DMLabelGetNumValues(label, &numValues);
2959: MPI_Allreduce(&numValues,&maxValues,1,MPIU_INT,MPI_MAX,PetscObjectComm((PetscObject)dm));
2960: for (v = numValues; v < maxValues; v++) {
2961: DMLabelAddStratum(label, v);
2962: }
2963: }
2964: PetscObjectStateGet((PetscObject) label, &mesh->depthState);
2965: PetscLogEventEnd(DMPLEX_Stratify,dm,0,0,0);
2966: return(0);
2967: }
2969: PetscErrorCode DMPlexComputeCellType_Internal(DM dm, PetscInt p, PetscInt pdepth, DMPolytopeType *pt)
2970: {
2971: DMPolytopeType ct = DM_POLYTOPE_UNKNOWN;
2972: PetscInt dim, depth, pheight, coneSize;
2976: DMGetDimension(dm, &dim);
2977: DMPlexGetDepth(dm, &depth);
2978: DMPlexGetConeSize(dm, p, &coneSize);
2979: pheight = depth - pdepth;
2980: if (depth <= 1) {
2981: switch (pdepth) {
2982: case 0: ct = DM_POLYTOPE_POINT;break;
2983: case 1:
2984: switch (coneSize) {
2985: case 2: ct = DM_POLYTOPE_SEGMENT;break;
2986: case 3: ct = DM_POLYTOPE_TRIANGLE;break;
2987: case 4:
2988: switch (dim) {
2989: case 2: ct = DM_POLYTOPE_QUADRILATERAL;break;
2990: case 3: ct = DM_POLYTOPE_TETRAHEDRON;break;
2991: default: break;
2992: }
2993: break;
2994: case 6: ct = DM_POLYTOPE_TRI_PRISM_TENSOR;break;
2995: case 8: ct = DM_POLYTOPE_HEXAHEDRON;break;
2996: default: break;
2997: }
2998: }
2999: } else {
3000: if (pdepth == 0) {
3001: ct = DM_POLYTOPE_POINT;
3002: } else if (pheight == 0) {
3003: switch (dim) {
3004: case 1:
3005: switch (coneSize) {
3006: case 2: ct = DM_POLYTOPE_SEGMENT;break;
3007: default: break;
3008: }
3009: break;
3010: case 2:
3011: switch (coneSize) {
3012: case 3: ct = DM_POLYTOPE_TRIANGLE;break;
3013: case 4: ct = DM_POLYTOPE_QUADRILATERAL;break;
3014: default: break;
3015: }
3016: break;
3017: case 3:
3018: switch (coneSize) {
3019: case 4: ct = DM_POLYTOPE_TETRAHEDRON;break;
3020: case 5: ct = DM_POLYTOPE_TRI_PRISM_TENSOR;break;
3021: case 6: ct = DM_POLYTOPE_HEXAHEDRON;break;
3022: default: break;
3023: }
3024: break;
3025: default: break;
3026: }
3027: } else if (pheight > 0) {
3028: switch (coneSize) {
3029: case 2: ct = DM_POLYTOPE_SEGMENT;break;
3030: case 3: ct = DM_POLYTOPE_TRIANGLE;break;
3031: case 4: ct = DM_POLYTOPE_QUADRILATERAL;break;
3032: default: break;
3033: }
3034: }
3035: }
3036: *pt = ct;
3037: return(0);
3038: }
3040: /*@
3041: DMPlexComputeCellTypes - Infer the polytope type of every cell using its dimension and cone size.
3043: Collective on dm
3045: Input Parameter:
3046: . mesh - The DMPlex
3048: DMPlexComputeCellTypes() should be called after all calls to DMPlexSymmetrize() and DMPlexStratify()
3050: Level: developer
3052: Note: This function is normally called automatically by Plex when a cell type is requested. It creates an
3053: internal DMLabel named "celltype" which can be directly accessed using DMGetLabel(). A user may disable
3054: automatic creation by creating the label manually, using DMCreateLabel(dm, "celltype").
3056: .seealso: DMPlexCreate(), DMPlexSymmetrize(), DMPlexStratify(), DMGetLabel(), DMCreateLabel()
3057: @*/
3058: PetscErrorCode DMPlexComputeCellTypes(DM dm)
3059: {
3060: DM_Plex *mesh;
3061: DMLabel ctLabel;
3062: PetscInt pStart, pEnd, p;
3067: mesh = (DM_Plex *) dm->data;
3068: DMCreateLabel(dm, "celltype");
3069: DMPlexGetCellTypeLabel(dm, &ctLabel);
3070: DMPlexGetChart(dm, &pStart, &pEnd);
3071: for (p = pStart; p < pEnd; ++p) {
3072: DMPolytopeType ct = DM_POLYTOPE_UNKNOWN;
3073: PetscInt pdepth;
3075: DMPlexGetPointDepth(dm, p, &pdepth);
3076: DMPlexComputeCellType_Internal(dm, p, pdepth, &ct);
3077: if (ct == DM_POLYTOPE_UNKNOWN) SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_SUP, "Point %D is screwed up", p);
3078: DMLabelSetValue(ctLabel, p, ct);
3079: }
3080: PetscObjectStateGet((PetscObject) ctLabel, &mesh->celltypeState);
3081: PetscObjectViewFromOptions((PetscObject) ctLabel, NULL, "-dm_plex_celltypes_view");
3082: return(0);
3083: }
3085: /*@C
3086: DMPlexGetJoin - Get an array for the join of the set of points
3088: Not Collective
3090: Input Parameters:
3091: + dm - The DMPlex object
3092: . numPoints - The number of input points for the join
3093: - points - The input points
3095: Output Parameters:
3096: + numCoveredPoints - The number of points in the join
3097: - coveredPoints - The points in the join
3099: Level: intermediate
3101: Note: Currently, this is restricted to a single level join
3103: Fortran Notes:
3104: Since it returns an array, this routine is only available in Fortran 90, and you must
3105: include petsc.h90 in your code.
3107: The numCoveredPoints argument is not present in the Fortran 90 binding since it is internal to the array.
3109: .seealso: DMPlexRestoreJoin(), DMPlexGetMeet()
3110: @*/
3111: PetscErrorCode DMPlexGetJoin(DM dm, PetscInt numPoints, const PetscInt points[], PetscInt *numCoveredPoints, const PetscInt **coveredPoints)
3112: {
3113: DM_Plex *mesh = (DM_Plex*) dm->data;
3114: PetscInt *join[2];
3115: PetscInt joinSize, i = 0;
3116: PetscInt dof, off, p, c, m;
3124: DMGetWorkArray(dm, mesh->maxSupportSize, MPIU_INT, &join[0]);
3125: DMGetWorkArray(dm, mesh->maxSupportSize, MPIU_INT, &join[1]);
3126: /* Copy in support of first point */
3127: PetscSectionGetDof(mesh->supportSection, points[0], &dof);
3128: PetscSectionGetOffset(mesh->supportSection, points[0], &off);
3129: for (joinSize = 0; joinSize < dof; ++joinSize) {
3130: join[i][joinSize] = mesh->supports[off+joinSize];
3131: }
3132: /* Check each successive support */
3133: for (p = 1; p < numPoints; ++p) {
3134: PetscInt newJoinSize = 0;
3136: PetscSectionGetDof(mesh->supportSection, points[p], &dof);
3137: PetscSectionGetOffset(mesh->supportSection, points[p], &off);
3138: for (c = 0; c < dof; ++c) {
3139: const PetscInt point = mesh->supports[off+c];
3141: for (m = 0; m < joinSize; ++m) {
3142: if (point == join[i][m]) {
3143: join[1-i][newJoinSize++] = point;
3144: break;
3145: }
3146: }
3147: }
3148: joinSize = newJoinSize;
3149: i = 1-i;
3150: }
3151: *numCoveredPoints = joinSize;
3152: *coveredPoints = join[i];
3153: DMRestoreWorkArray(dm, mesh->maxSupportSize, MPIU_INT, &join[1-i]);
3154: return(0);
3155: }
3157: /*@C
3158: DMPlexRestoreJoin - Restore an array for the join of the set of points
3160: Not Collective
3162: Input Parameters:
3163: + dm - The DMPlex object
3164: . numPoints - The number of input points for the join
3165: - points - The input points
3167: Output Parameters:
3168: + numCoveredPoints - The number of points in the join
3169: - coveredPoints - The points in the join
3171: Fortran Notes:
3172: Since it returns an array, this routine is only available in Fortran 90, and you must
3173: include petsc.h90 in your code.
3175: The numCoveredPoints argument is not present in the Fortran 90 binding since it is internal to the array.
3177: Level: intermediate
3179: .seealso: DMPlexGetJoin(), DMPlexGetFullJoin(), DMPlexGetMeet()
3180: @*/
3181: PetscErrorCode DMPlexRestoreJoin(DM dm, PetscInt numPoints, const PetscInt points[], PetscInt *numCoveredPoints, const PetscInt **coveredPoints)
3182: {
3190: DMRestoreWorkArray(dm, 0, MPIU_INT, (void*) coveredPoints);
3191: if (numCoveredPoints) *numCoveredPoints = 0;
3192: return(0);
3193: }
3195: /*@C
3196: DMPlexGetFullJoin - Get an array for the join of the set of points
3198: Not Collective
3200: Input Parameters:
3201: + dm - The DMPlex object
3202: . numPoints - The number of input points for the join
3203: - points - The input points
3205: Output Parameters:
3206: + numCoveredPoints - The number of points in the join
3207: - coveredPoints - The points in the join
3209: Fortran Notes:
3210: Since it returns an array, this routine is only available in Fortran 90, and you must
3211: include petsc.h90 in your code.
3213: The numCoveredPoints argument is not present in the Fortran 90 binding since it is internal to the array.
3215: Level: intermediate
3217: .seealso: DMPlexGetJoin(), DMPlexRestoreJoin(), DMPlexGetMeet()
3218: @*/
3219: PetscErrorCode DMPlexGetFullJoin(DM dm, PetscInt numPoints, const PetscInt points[], PetscInt *numCoveredPoints, const PetscInt **coveredPoints)
3220: {
3221: DM_Plex *mesh = (DM_Plex*) dm->data;
3222: PetscInt *offsets, **closures;
3223: PetscInt *join[2];
3224: PetscInt depth = 0, maxSize, joinSize = 0, i = 0;
3225: PetscInt p, d, c, m, ms;
3234: DMPlexGetDepth(dm, &depth);
3235: PetscCalloc1(numPoints, &closures);
3236: DMGetWorkArray(dm, numPoints*(depth+2), MPIU_INT, &offsets);
3237: ms = mesh->maxSupportSize;
3238: maxSize = (ms > 1) ? ((PetscPowInt(ms,depth+1)-1)/(ms-1)) : depth + 1;
3239: DMGetWorkArray(dm, maxSize, MPIU_INT, &join[0]);
3240: DMGetWorkArray(dm, maxSize, MPIU_INT, &join[1]);
3242: for (p = 0; p < numPoints; ++p) {
3243: PetscInt closureSize;
3245: DMPlexGetTransitiveClosure(dm, points[p], PETSC_FALSE, &closureSize, &closures[p]);
3247: offsets[p*(depth+2)+0] = 0;
3248: for (d = 0; d < depth+1; ++d) {
3249: PetscInt pStart, pEnd, i;
3251: DMPlexGetDepthStratum(dm, d, &pStart, &pEnd);
3252: for (i = offsets[p*(depth+2)+d]; i < closureSize; ++i) {
3253: if ((pStart > closures[p][i*2]) || (pEnd <= closures[p][i*2])) {
3254: offsets[p*(depth+2)+d+1] = i;
3255: break;
3256: }
3257: }
3258: if (i == closureSize) offsets[p*(depth+2)+d+1] = i;
3259: }
3260: if (offsets[p*(depth+2)+depth+1] != closureSize) SETERRQ2(PetscObjectComm((PetscObject)dm), PETSC_ERR_PLIB, "Total size of closure %D should be %D", offsets[p*(depth+2)+depth+1], closureSize);
3261: }
3262: for (d = 0; d < depth+1; ++d) {
3263: PetscInt dof;
3265: /* Copy in support of first point */
3266: dof = offsets[d+1] - offsets[d];
3267: for (joinSize = 0; joinSize < dof; ++joinSize) {
3268: join[i][joinSize] = closures[0][(offsets[d]+joinSize)*2];
3269: }
3270: /* Check each successive cone */
3271: for (p = 1; p < numPoints && joinSize; ++p) {
3272: PetscInt newJoinSize = 0;
3274: dof = offsets[p*(depth+2)+d+1] - offsets[p*(depth+2)+d];
3275: for (c = 0; c < dof; ++c) {
3276: const PetscInt point = closures[p][(offsets[p*(depth+2)+d]+c)*2];
3278: for (m = 0; m < joinSize; ++m) {
3279: if (point == join[i][m]) {
3280: join[1-i][newJoinSize++] = point;
3281: break;
3282: }
3283: }
3284: }
3285: joinSize = newJoinSize;
3286: i = 1-i;
3287: }
3288: if (joinSize) break;
3289: }
3290: *numCoveredPoints = joinSize;
3291: *coveredPoints = join[i];
3292: for (p = 0; p < numPoints; ++p) {
3293: DMPlexRestoreTransitiveClosure(dm, points[p], PETSC_FALSE, NULL, &closures[p]);
3294: }
3295: PetscFree(closures);
3296: DMRestoreWorkArray(dm, numPoints*(depth+2), MPIU_INT, &offsets);
3297: DMRestoreWorkArray(dm, mesh->maxSupportSize, MPIU_INT, &join[1-i]);
3298: return(0);
3299: }
3301: /*@C
3302: DMPlexGetMeet - Get an array for the meet of the set of points
3304: Not Collective
3306: Input Parameters:
3307: + dm - The DMPlex object
3308: . numPoints - The number of input points for the meet
3309: - points - The input points
3311: Output Parameters:
3312: + numCoveredPoints - The number of points in the meet
3313: - coveredPoints - The points in the meet
3315: Level: intermediate
3317: Note: Currently, this is restricted to a single level meet
3319: Fortran Notes:
3320: Since it returns an array, this routine is only available in Fortran 90, and you must
3321: include petsc.h90 in your code.
3323: The numCoveredPoints argument is not present in the Fortran 90 binding since it is internal to the array.
3325: .seealso: DMPlexRestoreMeet(), DMPlexGetJoin()
3326: @*/
3327: PetscErrorCode DMPlexGetMeet(DM dm, PetscInt numPoints, const PetscInt points[], PetscInt *numCoveringPoints, const PetscInt **coveringPoints)
3328: {
3329: DM_Plex *mesh = (DM_Plex*) dm->data;
3330: PetscInt *meet[2];
3331: PetscInt meetSize, i = 0;
3332: PetscInt dof, off, p, c, m;
3340: DMGetWorkArray(dm, mesh->maxConeSize, MPIU_INT, &meet[0]);
3341: DMGetWorkArray(dm, mesh->maxConeSize, MPIU_INT, &meet[1]);
3342: /* Copy in cone of first point */
3343: PetscSectionGetDof(mesh->coneSection, points[0], &dof);
3344: PetscSectionGetOffset(mesh->coneSection, points[0], &off);
3345: for (meetSize = 0; meetSize < dof; ++meetSize) {
3346: meet[i][meetSize] = mesh->cones[off+meetSize];
3347: }
3348: /* Check each successive cone */
3349: for (p = 1; p < numPoints; ++p) {
3350: PetscInt newMeetSize = 0;
3352: PetscSectionGetDof(mesh->coneSection, points[p], &dof);
3353: PetscSectionGetOffset(mesh->coneSection, points[p], &off);
3354: for (c = 0; c < dof; ++c) {
3355: const PetscInt point = mesh->cones[off+c];
3357: for (m = 0; m < meetSize; ++m) {
3358: if (point == meet[i][m]) {
3359: meet[1-i][newMeetSize++] = point;
3360: break;
3361: }
3362: }
3363: }
3364: meetSize = newMeetSize;
3365: i = 1-i;
3366: }
3367: *numCoveringPoints = meetSize;
3368: *coveringPoints = meet[i];
3369: DMRestoreWorkArray(dm, mesh->maxConeSize, MPIU_INT, &meet[1-i]);
3370: return(0);
3371: }
3373: /*@C
3374: DMPlexRestoreMeet - Restore an array for the meet of the set of points
3376: Not Collective
3378: Input Parameters:
3379: + dm - The DMPlex object
3380: . numPoints - The number of input points for the meet
3381: - points - The input points
3383: Output Parameters:
3384: + numCoveredPoints - The number of points in the meet
3385: - coveredPoints - The points in the meet
3387: Level: intermediate
3389: Fortran Notes:
3390: Since it returns an array, this routine is only available in Fortran 90, and you must
3391: include petsc.h90 in your code.
3393: The numCoveredPoints argument is not present in the Fortran 90 binding since it is internal to the array.
3395: .seealso: DMPlexGetMeet(), DMPlexGetFullMeet(), DMPlexGetJoin()
3396: @*/
3397: PetscErrorCode DMPlexRestoreMeet(DM dm, PetscInt numPoints, const PetscInt points[], PetscInt *numCoveredPoints, const PetscInt **coveredPoints)
3398: {
3406: DMRestoreWorkArray(dm, 0, MPIU_INT, (void*) coveredPoints);
3407: if (numCoveredPoints) *numCoveredPoints = 0;
3408: return(0);
3409: }
3411: /*@C
3412: DMPlexGetFullMeet - Get an array for the meet of the set of points
3414: Not Collective
3416: Input Parameters:
3417: + dm - The DMPlex object
3418: . numPoints - The number of input points for the meet
3419: - points - The input points
3421: Output Parameters:
3422: + numCoveredPoints - The number of points in the meet
3423: - coveredPoints - The points in the meet
3425: Level: intermediate
3427: Fortran Notes:
3428: Since it returns an array, this routine is only available in Fortran 90, and you must
3429: include petsc.h90 in your code.
3431: The numCoveredPoints argument is not present in the Fortran 90 binding since it is internal to the array.
3433: .seealso: DMPlexGetMeet(), DMPlexRestoreMeet(), DMPlexGetJoin()
3434: @*/
3435: PetscErrorCode DMPlexGetFullMeet(DM dm, PetscInt numPoints, const PetscInt points[], PetscInt *numCoveredPoints, const PetscInt **coveredPoints)
3436: {
3437: DM_Plex *mesh = (DM_Plex*) dm->data;
3438: PetscInt *offsets, **closures;
3439: PetscInt *meet[2];
3440: PetscInt height = 0, maxSize, meetSize = 0, i = 0;
3441: PetscInt p, h, c, m, mc;
3450: DMPlexGetDepth(dm, &height);
3451: PetscMalloc1(numPoints, &closures);
3452: DMGetWorkArray(dm, numPoints*(height+2), MPIU_INT, &offsets);
3453: mc = mesh->maxConeSize;
3454: maxSize = (mc > 1) ? ((PetscPowInt(mc,height+1)-1)/(mc-1)) : height + 1;
3455: DMGetWorkArray(dm, maxSize, MPIU_INT, &meet[0]);
3456: DMGetWorkArray(dm, maxSize, MPIU_INT, &meet[1]);
3458: for (p = 0; p < numPoints; ++p) {
3459: PetscInt closureSize;
3461: DMPlexGetTransitiveClosure(dm, points[p], PETSC_TRUE, &closureSize, &closures[p]);
3463: offsets[p*(height+2)+0] = 0;
3464: for (h = 0; h < height+1; ++h) {
3465: PetscInt pStart, pEnd, i;
3467: DMPlexGetHeightStratum(dm, h, &pStart, &pEnd);
3468: for (i = offsets[p*(height+2)+h]; i < closureSize; ++i) {
3469: if ((pStart > closures[p][i*2]) || (pEnd <= closures[p][i*2])) {
3470: offsets[p*(height+2)+h+1] = i;
3471: break;
3472: }
3473: }
3474: if (i == closureSize) offsets[p*(height+2)+h+1] = i;
3475: }
3476: if (offsets[p*(height+2)+height+1] != closureSize) SETERRQ2(PetscObjectComm((PetscObject)dm), PETSC_ERR_PLIB, "Total size of closure %D should be %D", offsets[p*(height+2)+height+1], closureSize);
3477: }
3478: for (h = 0; h < height+1; ++h) {
3479: PetscInt dof;
3481: /* Copy in cone of first point */
3482: dof = offsets[h+1] - offsets[h];
3483: for (meetSize = 0; meetSize < dof; ++meetSize) {
3484: meet[i][meetSize] = closures[0][(offsets[h]+meetSize)*2];
3485: }
3486: /* Check each successive cone */
3487: for (p = 1; p < numPoints && meetSize; ++p) {
3488: PetscInt newMeetSize = 0;
3490: dof = offsets[p*(height+2)+h+1] - offsets[p*(height+2)+h];
3491: for (c = 0; c < dof; ++c) {
3492: const PetscInt point = closures[p][(offsets[p*(height+2)+h]+c)*2];
3494: for (m = 0; m < meetSize; ++m) {
3495: if (point == meet[i][m]) {
3496: meet[1-i][newMeetSize++] = point;
3497: break;
3498: }
3499: }
3500: }
3501: meetSize = newMeetSize;
3502: i = 1-i;
3503: }
3504: if (meetSize) break;
3505: }
3506: *numCoveredPoints = meetSize;
3507: *coveredPoints = meet[i];
3508: for (p = 0; p < numPoints; ++p) {
3509: DMPlexRestoreTransitiveClosure(dm, points[p], PETSC_TRUE, NULL, &closures[p]);
3510: }
3511: PetscFree(closures);
3512: DMRestoreWorkArray(dm, numPoints*(height+2), MPIU_INT, &offsets);
3513: DMRestoreWorkArray(dm, mesh->maxConeSize, MPIU_INT, &meet[1-i]);
3514: return(0);
3515: }
3517: /*@C
3518: DMPlexEqual - Determine if two DMs have the same topology
3520: Not Collective
3522: Input Parameters:
3523: + dmA - A DMPlex object
3524: - dmB - A DMPlex object
3526: Output Parameters:
3527: . equal - PETSC_TRUE if the topologies are identical
3529: Level: intermediate
3531: Notes:
3532: We are not solving graph isomorphism, so we do not permutation.
3534: .seealso: DMPlexGetCone()
3535: @*/
3536: PetscErrorCode DMPlexEqual(DM dmA, DM dmB, PetscBool *equal)
3537: {
3538: PetscInt depth, depthB, pStart, pEnd, pStartB, pEndB, p;
3546: *equal = PETSC_FALSE;
3547: DMPlexGetDepth(dmA, &depth);
3548: DMPlexGetDepth(dmB, &depthB);
3549: if (depth != depthB) return(0);
3550: DMPlexGetChart(dmA, &pStart, &pEnd);
3551: DMPlexGetChart(dmB, &pStartB, &pEndB);
3552: if ((pStart != pStartB) || (pEnd != pEndB)) return(0);
3553: for (p = pStart; p < pEnd; ++p) {
3554: const PetscInt *cone, *coneB, *ornt, *orntB, *support, *supportB;
3555: PetscInt coneSize, coneSizeB, c, supportSize, supportSizeB, s;
3557: DMPlexGetConeSize(dmA, p, &coneSize);
3558: DMPlexGetCone(dmA, p, &cone);
3559: DMPlexGetConeOrientation(dmA, p, &ornt);
3560: DMPlexGetConeSize(dmB, p, &coneSizeB);
3561: DMPlexGetCone(dmB, p, &coneB);
3562: DMPlexGetConeOrientation(dmB, p, &orntB);
3563: if (coneSize != coneSizeB) return(0);
3564: for (c = 0; c < coneSize; ++c) {
3565: if (cone[c] != coneB[c]) return(0);
3566: if (ornt[c] != orntB[c]) return(0);
3567: }
3568: DMPlexGetSupportSize(dmA, p, &supportSize);
3569: DMPlexGetSupport(dmA, p, &support);
3570: DMPlexGetSupportSize(dmB, p, &supportSizeB);
3571: DMPlexGetSupport(dmB, p, &supportB);
3572: if (supportSize != supportSizeB) return(0);
3573: for (s = 0; s < supportSize; ++s) {
3574: if (support[s] != supportB[s]) return(0);
3575: }
3576: }
3577: *equal = PETSC_TRUE;
3578: return(0);
3579: }
3581: /*@C
3582: DMPlexGetNumFaceVertices - Returns the number of vertices on a face
3584: Not Collective
3586: Input Parameters:
3587: + dm - The DMPlex
3588: . cellDim - The cell dimension
3589: - numCorners - The number of vertices on a cell
3591: Output Parameters:
3592: . numFaceVertices - The number of vertices on a face
3594: Level: developer
3596: Notes:
3597: Of course this can only work for a restricted set of symmetric shapes
3599: .seealso: DMPlexGetCone()
3600: @*/
3601: PetscErrorCode DMPlexGetNumFaceVertices(DM dm, PetscInt cellDim, PetscInt numCorners, PetscInt *numFaceVertices)
3602: {
3603: MPI_Comm comm;
3607: PetscObjectGetComm((PetscObject)dm,&comm);
3609: switch (cellDim) {
3610: case 0:
3611: *numFaceVertices = 0;
3612: break;
3613: case 1:
3614: *numFaceVertices = 1;
3615: break;
3616: case 2:
3617: switch (numCorners) {
3618: case 3: /* triangle */
3619: *numFaceVertices = 2; /* Edge has 2 vertices */
3620: break;
3621: case 4: /* quadrilateral */
3622: *numFaceVertices = 2; /* Edge has 2 vertices */
3623: break;
3624: case 6: /* quadratic triangle, tri and quad cohesive Lagrange cells */
3625: *numFaceVertices = 3; /* Edge has 3 vertices */
3626: break;
3627: case 9: /* quadratic quadrilateral, quadratic quad cohesive Lagrange cells */
3628: *numFaceVertices = 3; /* Edge has 3 vertices */
3629: break;
3630: default:
3631: SETERRQ2(comm, PETSC_ERR_ARG_OUTOFRANGE, "Invalid number of face corners %D for dimension %D", numCorners, cellDim);
3632: }
3633: break;
3634: case 3:
3635: switch (numCorners) {
3636: case 4: /* tetradehdron */
3637: *numFaceVertices = 3; /* Face has 3 vertices */
3638: break;
3639: case 6: /* tet cohesive cells */
3640: *numFaceVertices = 4; /* Face has 4 vertices */
3641: break;
3642: case 8: /* hexahedron */
3643: *numFaceVertices = 4; /* Face has 4 vertices */
3644: break;
3645: case 9: /* tet cohesive Lagrange cells */
3646: *numFaceVertices = 6; /* Face has 6 vertices */
3647: break;
3648: case 10: /* quadratic tetrahedron */
3649: *numFaceVertices = 6; /* Face has 6 vertices */
3650: break;
3651: case 12: /* hex cohesive Lagrange cells */
3652: *numFaceVertices = 6; /* Face has 6 vertices */
3653: break;
3654: case 18: /* quadratic tet cohesive Lagrange cells */
3655: *numFaceVertices = 6; /* Face has 6 vertices */
3656: break;
3657: case 27: /* quadratic hexahedron, quadratic hex cohesive Lagrange cells */
3658: *numFaceVertices = 9; /* Face has 9 vertices */
3659: break;
3660: default:
3661: SETERRQ2(comm, PETSC_ERR_ARG_OUTOFRANGE, "Invalid number of face corners %D for dimension %D", numCorners, cellDim);
3662: }
3663: break;
3664: default:
3665: SETERRQ1(comm, PETSC_ERR_ARG_OUTOFRANGE, "Invalid cell dimension %D", cellDim);
3666: }
3667: return(0);
3668: }
3670: /*@
3671: DMPlexGetDepthLabel - Get the DMLabel recording the depth of each point
3673: Not Collective
3675: Input Parameter:
3676: . dm - The DMPlex object
3678: Output Parameter:
3679: . depthLabel - The DMLabel recording point depth
3681: Level: developer
3683: .seealso: DMPlexGetDepth(), DMPlexGetHeightStratum(), DMPlexGetDepthStratum(), DMPlexGetPointDepth(),
3684: @*/
3685: PetscErrorCode DMPlexGetDepthLabel(DM dm, DMLabel *depthLabel)
3686: {
3690: *depthLabel = dm->depthLabel;
3691: return(0);
3692: }
3694: /*@
3695: DMPlexGetDepth - Get the depth of the DAG representing this mesh
3697: Not Collective
3699: Input Parameter:
3700: . dm - The DMPlex object
3702: Output Parameter:
3703: . depth - The number of strata (breadth first levels) in the DAG
3705: Level: developer
3707: Notes:
3708: This returns maximum of point depths over all points, i.e. maximum value of the label returned by DMPlexGetDepthLabel().
3709: The point depth is described more in detail in DMPlexGetDepthStratum().
3710: An empty mesh gives -1.
3712: .seealso: DMPlexGetDepthLabel(), DMPlexGetDepthStratum(), DMPlexGetPointDepth(), DMPlexSymmetrize()
3713: @*/
3714: PetscErrorCode DMPlexGetDepth(DM dm, PetscInt *depth)
3715: {
3716: DMLabel label;
3717: PetscInt d = 0;
3723: DMPlexGetDepthLabel(dm, &label);
3724: if (label) {DMLabelGetNumValues(label, &d);}
3725: *depth = d-1;
3726: return(0);
3727: }
3729: /*@
3730: DMPlexGetDepthStratum - Get the bounds [start, end) for all points at a certain depth.
3732: Not Collective
3734: Input Parameters:
3735: + dm - The DMPlex object
3736: - stratumValue - The requested depth
3738: Output Parameters:
3739: + start - The first point at this depth
3740: - end - One beyond the last point at this depth
3742: Notes:
3743: Depth indexing is related to topological dimension. Depth stratum 0 contains the lowest topological dimension points,
3744: often "vertices". If the mesh is "interpolated" (see DMPlexInterpolate()), then depth stratum 1 contains the next
3745: higher dimension, e.g., "edges".
3747: Level: developer
3749: .seealso: DMPlexGetHeightStratum(), DMPlexGetDepth(), DMPlexGetDepthLabel(), DMPlexGetPointDepth(), DMPlexSymmetrize(), DMPlexInterpolate()
3750: @*/
3751: PetscErrorCode DMPlexGetDepthStratum(DM dm, PetscInt stratumValue, PetscInt *start, PetscInt *end)
3752: {
3753: DMLabel label;
3754: PetscInt pStart, pEnd;
3761: DMPlexGetChart(dm, &pStart, &pEnd);
3762: if (pStart == pEnd) return(0);
3763: if (stratumValue < 0) {
3764: if (start) *start = pStart;
3765: if (end) *end = pEnd;
3766: return(0);
3767: }
3768: DMPlexGetDepthLabel(dm, &label);
3769: if (!label) SETERRQ(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_WRONG, "No label named depth was found");
3770: DMLabelGetStratumBounds(label, stratumValue, start, end);
3771: return(0);
3772: }
3774: /*@
3775: DMPlexGetHeightStratum - Get the bounds [start, end) for all points at a certain height.
3777: Not Collective
3779: Input Parameters:
3780: + dm - The DMPlex object
3781: - stratumValue - The requested height
3783: Output Parameters:
3784: + start - The first point at this height
3785: - end - One beyond the last point at this height
3787: Notes:
3788: Height indexing is related to topological codimension. Height stratum 0 contains the highest topological dimension
3789: points, often called "cells" or "elements". If the mesh is "interpolated" (see DMPlexInterpolate()), then height
3790: stratum 1 contains the boundary of these "cells", often called "faces" or "facets".
3792: Level: developer
3794: .seealso: DMPlexGetDepthStratum(), DMPlexGetDepth(), DMPlexGetPointHeight()
3795: @*/
3796: PetscErrorCode DMPlexGetHeightStratum(DM dm, PetscInt stratumValue, PetscInt *start, PetscInt *end)
3797: {
3798: DMLabel label;
3799: PetscInt depth, pStart, pEnd;
3806: DMPlexGetChart(dm, &pStart, &pEnd);
3807: if (pStart == pEnd) return(0);
3808: if (stratumValue < 0) {
3809: if (start) *start = pStart;
3810: if (end) *end = pEnd;
3811: return(0);
3812: }
3813: DMPlexGetDepthLabel(dm, &label);
3814: if (!label) SETERRQ(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_WRONG, "No label named depth was found");
3815: DMLabelGetNumValues(label, &depth);
3816: DMLabelGetStratumBounds(label, depth-1-stratumValue, start, end);
3817: return(0);
3818: }
3820: /*@
3821: DMPlexGetPointDepth - Get the depth of a given point
3823: Not Collective
3825: Input Parameter:
3826: + dm - The DMPlex object
3827: - point - The point
3829: Output Parameter:
3830: . depth - The depth of the point
3832: Level: intermediate
3834: .seealso: DMPlexGetCellType(), DMPlexGetDepthLabel(), DMPlexGetDepth(), DMPlexGetPointHeight()
3835: @*/
3836: PetscErrorCode DMPlexGetPointDepth(DM dm, PetscInt point, PetscInt *depth)
3837: {
3843: DMLabelGetValue(dm->depthLabel, point, depth);
3844: return(0);
3845: }
3847: /*@
3848: DMPlexGetPointHeight - Get the height of a given point
3850: Not Collective
3852: Input Parameter:
3853: + dm - The DMPlex object
3854: - point - The point
3856: Output Parameter:
3857: . height - The height of the point
3859: Level: intermediate
3861: .seealso: DMPlexGetCellType(), DMPlexGetDepthLabel(), DMPlexGetDepth(), DMPlexGetPointDepth()
3862: @*/
3863: PetscErrorCode DMPlexGetPointHeight(DM dm, PetscInt point, PetscInt *height)
3864: {
3865: PetscInt n, pDepth;
3871: DMLabelGetNumValues(dm->depthLabel, &n);
3872: DMLabelGetValue(dm->depthLabel, point, &pDepth);
3873: *height = n - 1 - pDepth; /* DAG depth is n-1 */
3874: return(0);
3875: }
3877: /*@
3878: DMPlexGetCellTypeLabel - Get the DMLabel recording the polytope type of each cell
3880: Not Collective
3882: Input Parameter:
3883: . dm - The DMPlex object
3885: Output Parameter:
3886: . celltypeLabel - The DMLabel recording cell polytope type
3888: Note: This function will trigger automatica computation of cell types. This can be disabled by calling
3889: DMCreateLabel(dm, "celltype") beforehand.
3891: Level: developer
3893: .seealso: DMPlexGetCellType(), DMPlexGetDepthLabel(), DMCreateLabel()
3894: @*/
3895: PetscErrorCode DMPlexGetCellTypeLabel(DM dm, DMLabel *celltypeLabel)
3896: {
3902: if (!dm->celltypeLabel) {DMPlexComputeCellTypes(dm);}
3903: *celltypeLabel = dm->celltypeLabel;
3904: return(0);
3905: }
3907: /*@
3908: DMPlexGetCellType - Get the polytope type of a given cell
3910: Not Collective
3912: Input Parameter:
3913: + dm - The DMPlex object
3914: - cell - The cell
3916: Output Parameter:
3917: . celltype - The polytope type of the cell
3919: Level: intermediate
3921: .seealso: DMPlexGetCellTypeLabel(), DMPlexGetDepthLabel(), DMPlexGetDepth()
3922: @*/
3923: PetscErrorCode DMPlexGetCellType(DM dm, PetscInt cell, DMPolytopeType *celltype)
3924: {
3925: DMLabel label;
3926: PetscInt ct;
3932: DMPlexGetCellTypeLabel(dm, &label);
3933: DMLabelGetValue(label, cell, &ct);
3934: *celltype = (DMPolytopeType) ct;
3935: return(0);
3936: }
3938: /*@
3939: DMPlexSetCellType - Set the polytope type of a given cell
3941: Not Collective
3943: Input Parameters:
3944: + dm - The DMPlex object
3945: . cell - The cell
3946: - celltype - The polytope type of the cell
3948: Note: By default, cell types will be automatically computed using DMPlexComputeCellTypes() before this function
3949: is executed. This function will override the computed type. However, if automatic classification will not succeed
3950: and a user wants to manually specify all types, the classification must be disabled by calling
3951: DMCreaateLabel(dm, "celltype") before getting or setting any cell types.
3953: Level: advanced
3955: .seealso: DMPlexGetCellTypeLabel(), DMPlexGetDepthLabel(), DMPlexGetDepth(), DMPlexComputeCellTypes(), DMCreateLabel()
3956: @*/
3957: PetscErrorCode DMPlexSetCellType(DM dm, PetscInt cell, DMPolytopeType celltype)
3958: {
3959: DMLabel label;
3964: DMPlexGetCellTypeLabel(dm, &label);
3965: DMLabelSetValue(label, cell, celltype);
3966: return(0);
3967: }
3969: PetscErrorCode DMCreateCoordinateDM_Plex(DM dm, DM *cdm)
3970: {
3971: PetscSection section, s;
3972: Mat m;
3973: PetscInt maxHeight;
3977: DMClone(dm, cdm);
3978: DMPlexGetMaxProjectionHeight(dm, &maxHeight);
3979: DMPlexSetMaxProjectionHeight(*cdm, maxHeight);
3980: PetscSectionCreate(PetscObjectComm((PetscObject)dm), §ion);
3981: DMSetLocalSection(*cdm, section);
3982: PetscSectionDestroy(§ion);
3983: PetscSectionCreate(PETSC_COMM_SELF, &s);
3984: MatCreate(PETSC_COMM_SELF, &m);
3985: DMSetDefaultConstraints(*cdm, s, m);
3986: PetscSectionDestroy(&s);
3987: MatDestroy(&m);
3989: DMSetNumFields(*cdm, 1);
3990: DMCreateDS(*cdm);
3991: return(0);
3992: }
3994: PetscErrorCode DMCreateCoordinateField_Plex(DM dm, DMField *field)
3995: {
3996: Vec coordsLocal;
3997: DM coordsDM;
4001: *field = NULL;
4002: DMGetCoordinatesLocal(dm,&coordsLocal);
4003: DMGetCoordinateDM(dm,&coordsDM);
4004: if (coordsLocal && coordsDM) {
4005: DMFieldCreateDS(coordsDM, 0, coordsLocal, field);
4006: }
4007: return(0);
4008: }
4010: /*@C
4011: DMPlexGetConeSection - Return a section which describes the layout of cone data
4013: Not Collective
4015: Input Parameters:
4016: . dm - The DMPlex object
4018: Output Parameter:
4019: . section - The PetscSection object
4021: Level: developer
4023: .seealso: DMPlexGetSupportSection(), DMPlexGetCones(), DMPlexGetConeOrientations()
4024: @*/
4025: PetscErrorCode DMPlexGetConeSection(DM dm, PetscSection *section)
4026: {
4027: DM_Plex *mesh = (DM_Plex*) dm->data;
4031: if (section) *section = mesh->coneSection;
4032: return(0);
4033: }
4035: /*@C
4036: DMPlexGetSupportSection - Return a section which describes the layout of support data
4038: Not Collective
4040: Input Parameters:
4041: . dm - The DMPlex object
4043: Output Parameter:
4044: . section - The PetscSection object
4046: Level: developer
4048: .seealso: DMPlexGetConeSection()
4049: @*/
4050: PetscErrorCode DMPlexGetSupportSection(DM dm, PetscSection *section)
4051: {
4052: DM_Plex *mesh = (DM_Plex*) dm->data;
4056: if (section) *section = mesh->supportSection;
4057: return(0);
4058: }
4060: /*@C
4061: DMPlexGetCones - Return cone data
4063: Not Collective
4065: Input Parameters:
4066: . dm - The DMPlex object
4068: Output Parameter:
4069: . cones - The cone for each point
4071: Level: developer
4073: .seealso: DMPlexGetConeSection()
4074: @*/
4075: PetscErrorCode DMPlexGetCones(DM dm, PetscInt *cones[])
4076: {
4077: DM_Plex *mesh = (DM_Plex*) dm->data;
4081: if (cones) *cones = mesh->cones;
4082: return(0);
4083: }
4085: /*@C
4086: DMPlexGetConeOrientations - Return cone orientation data
4088: Not Collective
4090: Input Parameters:
4091: . dm - The DMPlex object
4093: Output Parameter:
4094: . coneOrientations - The cone orientation for each point
4096: Level: developer
4098: .seealso: DMPlexGetConeSection()
4099: @*/
4100: PetscErrorCode DMPlexGetConeOrientations(DM dm, PetscInt *coneOrientations[])
4101: {
4102: DM_Plex *mesh = (DM_Plex*) dm->data;
4106: if (coneOrientations) *coneOrientations = mesh->coneOrientations;
4107: return(0);
4108: }
4110: /******************************** FEM Support **********************************/
4112: /*
4113: Returns number of components and tensor degree for the field. For interpolated meshes, line should be a point
4114: representing a line in the section.
4115: */
4116: static PetscErrorCode PetscSectionFieldGetTensorDegree_Private(PetscSection section,PetscInt field,PetscInt line,PetscBool vertexchart,PetscInt *Nc,PetscInt *k)
4117: {
4121: PetscSectionGetFieldComponents(section, field, Nc);
4122: if (line < 0) {
4123: *k = 0;
4124: *Nc = 0;
4125: } else if (vertexchart) { /* If we only have a vertex chart, we must have degree k=1 */
4126: *k = 1;
4127: } else { /* Assume the full interpolated mesh is in the chart; lines in particular */
4128: /* An order k SEM disc has k-1 dofs on an edge */
4129: PetscSectionGetFieldDof(section, line, field, k);
4130: *k = *k / *Nc + 1;
4131: }
4132: return(0);
4133: }
4135: /*@
4137: DMPlexSetClosurePermutationTensor - Create a permutation from the default (BFS) point ordering in the closure, to a
4138: lexicographic ordering over the tensor product cell (i.e., line, quad, hex, etc.), and set this permutation in the
4139: section provided (or the section of the DM).
4141: Input Parameters:
4142: + dm - The DM
4143: . point - Either a cell (highest dim point) or an edge (dim 1 point), or PETSC_DETERMINE
4144: - section - The PetscSection to reorder, or NULL for the default section
4146: Note: The point is used to determine the number of dofs/field on an edge. For SEM, this is related to the polynomial
4147: degree of the basis.
4149: Example:
4150: A typical interpolated single-quad mesh might order points as
4151: .vb
4152: [c0, v1, v2, v3, v4, e5, e6, e7, e8]
4154: v4 -- e6 -- v3
4155: | |
4156: e7 c0 e8
4157: | |
4158: v1 -- e5 -- v2
4159: .ve
4161: (There is no significance to the ordering described here.) The default section for a Q3 quad might typically assign
4162: dofs in the order of points, e.g.,
4163: .vb
4164: c0 -> [0,1,2,3]
4165: v1 -> [4]
4166: ...
4167: e5 -> [8, 9]
4168: .ve
4170: which corresponds to the dofs
4171: .vb
4172: 6 10 11 7
4173: 13 2 3 15
4174: 12 0 1 14
4175: 4 8 9 5
4176: .ve
4178: The closure in BFS ordering works through height strata (cells, edges, vertices) to produce the ordering
4179: .vb
4180: 0 1 2 3 8 9 14 15 11 10 13 12 4 5 7 6
4181: .ve
4183: After calling DMPlexSetClosurePermutationTensor(), the closure will be ordered lexicographically,
4184: .vb
4185: 4 8 9 5 12 0 1 14 13 2 3 15 6 10 11 7
4186: .ve
4188: Level: developer
4190: .seealso: DMGetLocalSection(), PetscSectionSetClosurePermutation(), DMSetGlobalSection()
4191: @*/
4192: PetscErrorCode DMPlexSetClosurePermutationTensor(DM dm, PetscInt point, PetscSection section)
4193: {
4194: DMLabel label;
4195: PetscInt dim, depth = -1, eStart = -1, Nf;
4196: PetscBool vertexchart;
4200: DMGetDimension(dm, &dim);
4201: if (dim < 1) return(0);
4202: if (point < 0) {
4203: PetscInt sStart,sEnd;
4205: DMPlexGetDepthStratum(dm, 1, &sStart, &sEnd);
4206: point = sEnd-sStart ? sStart : point;
4207: }
4208: DMPlexGetDepthLabel(dm, &label);
4209: if (point >= 0) { DMLabelGetValue(label, point, &depth); }
4210: if (!section) {DMGetLocalSection(dm, §ion);}
4211: if (depth == 1) {eStart = point;}
4212: else if (depth == dim) {
4213: const PetscInt *cone;
4215: DMPlexGetCone(dm, point, &cone);
4216: if (dim == 2) eStart = cone[0];
4217: else if (dim == 3) {
4218: const PetscInt *cone2;
4219: DMPlexGetCone(dm, cone[0], &cone2);
4220: eStart = cone2[0];
4221: } else SETERRQ3(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Point %D of depth %D cannot be used to bootstrap spectral ordering for dim %D", point, depth, dim);
4222: } else if (depth >= 0) SETERRQ3(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Point %D of depth %D cannot be used to bootstrap spectral ordering for dim %D", point, depth, dim);
4223: { /* Determine whether the chart covers all points or just vertices. */
4224: PetscInt pStart,pEnd,cStart,cEnd;
4225: DMPlexGetDepthStratum(dm,0,&pStart,&pEnd);
4226: PetscSectionGetChart(section,&cStart,&cEnd);
4227: if (pStart == cStart && pEnd == cEnd) vertexchart = PETSC_TRUE; /* Just vertices */
4228: else vertexchart = PETSC_FALSE; /* Assume all interpolated points are in chart */
4229: }
4230: PetscSectionGetNumFields(section, &Nf);
4231: for (PetscInt d=1; d<=dim; d++) {
4232: PetscInt k, f, Nc, c, i, j, size = 0, offset = 0, foffset = 0;
4233: PetscInt *perm;
4235: for (f = 0; f < Nf; ++f) {
4236: PetscSectionFieldGetTensorDegree_Private(section,f,eStart,vertexchart,&Nc,&k);
4237: size += PetscPowInt(k+1, d)*Nc;
4238: }
4239: PetscMalloc1(size, &perm);
4240: for (f = 0; f < Nf; ++f) {
4241: switch (d) {
4242: case 1:
4243: PetscSectionFieldGetTensorDegree_Private(section,f,eStart,vertexchart,&Nc,&k);
4244: /*
4245: Original ordering is [ edge of length k-1; vtx0; vtx1 ]
4246: We want [ vtx0; edge of length k-1; vtx1 ]
4247: */
4248: for (c=0; c<Nc; c++,offset++) perm[offset] = (k-1)*Nc + c + foffset;
4249: for (i=0; i<k-1; i++) for (c=0; c<Nc; c++,offset++) perm[offset] = i*Nc + c + foffset;
4250: for (c=0; c<Nc; c++,offset++) perm[offset] = k*Nc + c + foffset;
4251: foffset = offset;
4252: break;
4253: case 2:
4254: /* The original quad closure is oriented clockwise, {f, e_b, e_r, e_t, e_l, v_lb, v_rb, v_tr, v_tl} */
4255: PetscSectionFieldGetTensorDegree_Private(section,f,eStart,vertexchart,&Nc,&k);
4256: /* The SEM order is
4258: v_lb, {e_b}, v_rb,
4259: e^{(k-1)-i}_l, {f^{i*(k-1)}}, e^i_r,
4260: v_lt, reverse {e_t}, v_rt
4261: */
4262: {
4263: const PetscInt of = 0;
4264: const PetscInt oeb = of + PetscSqr(k-1);
4265: const PetscInt oer = oeb + (k-1);
4266: const PetscInt oet = oer + (k-1);
4267: const PetscInt oel = oet + (k-1);
4268: const PetscInt ovlb = oel + (k-1);
4269: const PetscInt ovrb = ovlb + 1;
4270: const PetscInt ovrt = ovrb + 1;
4271: const PetscInt ovlt = ovrt + 1;
4272: PetscInt o;
4274: /* bottom */
4275: for (c = 0; c < Nc; ++c, ++offset) perm[offset] = ovlb*Nc + c + foffset;
4276: for (o = oeb; o < oer; ++o) for (c = 0; c < Nc; ++c, ++offset) perm[offset] = o*Nc + c + foffset;
4277: for (c = 0; c < Nc; ++c, ++offset) perm[offset] = ovrb*Nc + c + foffset;
4278: /* middle */
4279: for (i = 0; i < k-1; ++i) {
4280: for (c = 0; c < Nc; ++c, ++offset) perm[offset] = (oel+(k-2)-i)*Nc + c + foffset;
4281: for (o = of+(k-1)*i; o < of+(k-1)*(i+1); ++o) for (c = 0; c < Nc; ++c, ++offset) perm[offset] = o*Nc + c + foffset;
4282: for (c = 0; c < Nc; ++c, ++offset) perm[offset] = (oer+i)*Nc + c + foffset;
4283: }
4284: /* top */
4285: for (c = 0; c < Nc; ++c, ++offset) perm[offset] = ovlt*Nc + c + foffset;
4286: for (o = oel-1; o >= oet; --o) for (c = 0; c < Nc; ++c, ++offset) perm[offset] = o*Nc + c + foffset;
4287: for (c = 0; c < Nc; ++c, ++offset) perm[offset] = ovrt*Nc + c + foffset;
4288: foffset = offset;
4289: }
4290: break;
4291: case 3:
4292: /* The original hex closure is
4294: {c,
4295: f_b, f_t, f_f, f_b, f_r, f_l,
4296: e_bl, e_bb, e_br, e_bf, e_tf, e_tr, e_tb, e_tl, e_rf, e_lf, e_lb, e_rb,
4297: v_blf, v_blb, v_brb, v_brf, v_tlf, v_trf, v_trb, v_tlb}
4298: */
4299: PetscSectionFieldGetTensorDegree_Private(section,f,eStart,vertexchart,&Nc,&k);
4300: /* The SEM order is
4301: Bottom Slice
4302: v_blf, {e^{(k-1)-n}_bf}, v_brf,
4303: e^{i}_bl, f^{n*(k-1)+(k-1)-i}_b, e^{(k-1)-i}_br,
4304: v_blb, {e_bb}, v_brb,
4306: Middle Slice (j)
4307: {e^{(k-1)-j}_lf}, {f^{j*(k-1)+n}_f}, e^j_rf,
4308: f^{i*(k-1)+j}_l, {c^{(j*(k-1) + i)*(k-1)+n}_t}, f^{j*(k-1)+i}_r,
4309: e^j_lb, {f^{j*(k-1)+(k-1)-n}_b}, e^{(k-1)-j}_rb,
4311: Top Slice
4312: v_tlf, {e_tf}, v_trf,
4313: e^{(k-1)-i}_tl, {f^{i*(k-1)}_t}, e^{i}_tr,
4314: v_tlb, {e^{(k-1)-n}_tb}, v_trb,
4315: */
4316: {
4317: const PetscInt oc = 0;
4318: const PetscInt ofb = oc + PetscSqr(k-1)*(k-1);
4319: const PetscInt oft = ofb + PetscSqr(k-1);
4320: const PetscInt off = oft + PetscSqr(k-1);
4321: const PetscInt ofk = off + PetscSqr(k-1);
4322: const PetscInt ofr = ofk + PetscSqr(k-1);
4323: const PetscInt ofl = ofr + PetscSqr(k-1);
4324: const PetscInt oebl = ofl + PetscSqr(k-1);
4325: const PetscInt oebb = oebl + (k-1);
4326: const PetscInt oebr = oebb + (k-1);
4327: const PetscInt oebf = oebr + (k-1);
4328: const PetscInt oetf = oebf + (k-1);
4329: const PetscInt oetr = oetf + (k-1);
4330: const PetscInt oetb = oetr + (k-1);
4331: const PetscInt oetl = oetb + (k-1);
4332: const PetscInt oerf = oetl + (k-1);
4333: const PetscInt oelf = oerf + (k-1);
4334: const PetscInt oelb = oelf + (k-1);
4335: const PetscInt oerb = oelb + (k-1);
4336: const PetscInt ovblf = oerb + (k-1);
4337: const PetscInt ovblb = ovblf + 1;
4338: const PetscInt ovbrb = ovblb + 1;
4339: const PetscInt ovbrf = ovbrb + 1;
4340: const PetscInt ovtlf = ovbrf + 1;
4341: const PetscInt ovtrf = ovtlf + 1;
4342: const PetscInt ovtrb = ovtrf + 1;
4343: const PetscInt ovtlb = ovtrb + 1;
4344: PetscInt o, n;
4346: /* Bottom Slice */
4347: /* bottom */
4348: for (c = 0; c < Nc; ++c, ++offset) perm[offset] = ovblf*Nc + c + foffset;
4349: for (o = oetf-1; o >= oebf; --o) for (c = 0; c < Nc; ++c, ++offset) perm[offset] = o*Nc + c + foffset;
4350: for (c = 0; c < Nc; ++c, ++offset) perm[offset] = ovbrf*Nc + c + foffset;
4351: /* middle */
4352: for (i = 0; i < k-1; ++i) {
4353: for (c = 0; c < Nc; ++c, ++offset) perm[offset] = (oebl+i)*Nc + c + foffset;
4354: for (n = 0; n < k-1; ++n) {o = ofb+n*(k-1)+i; for (c = 0; c < Nc; ++c, ++offset) perm[offset] = o*Nc + c + foffset;}
4355: for (c = 0; c < Nc; ++c, ++offset) perm[offset] = (oebr+(k-2)-i)*Nc + c + foffset;
4356: }
4357: /* top */
4358: for (c = 0; c < Nc; ++c, ++offset) perm[offset] = ovblb*Nc + c + foffset;
4359: for (o = oebb; o < oebr; ++o) for (c = 0; c < Nc; ++c, ++offset) perm[offset] = o*Nc + c + foffset;
4360: for (c = 0; c < Nc; ++c, ++offset) perm[offset] = ovbrb*Nc + c + foffset;
4362: /* Middle Slice */
4363: for (j = 0; j < k-1; ++j) {
4364: /* bottom */
4365: for (c = 0; c < Nc; ++c, ++offset) perm[offset] = (oelf+(k-2)-j)*Nc + c + foffset;
4366: for (o = off+j*(k-1); o < off+(j+1)*(k-1); ++o) for (c = 0; c < Nc; ++c, ++offset) perm[offset] = o*Nc + c + foffset;
4367: for (c = 0; c < Nc; ++c, ++offset) perm[offset] = (oerf+j)*Nc + c + foffset;
4368: /* middle */
4369: for (i = 0; i < k-1; ++i) {
4370: for (c = 0; c < Nc; ++c, ++offset) perm[offset] = (ofl+i*(k-1)+j)*Nc + c + foffset;
4371: for (n = 0; n < k-1; ++n) for (c = 0; c < Nc; ++c, ++offset) perm[offset] = (oc+(j*(k-1)+i)*(k-1)+n)*Nc + c + foffset;
4372: for (c = 0; c < Nc; ++c, ++offset) perm[offset] = (ofr+j*(k-1)+i)*Nc + c + foffset;
4373: }
4374: /* top */
4375: for (c = 0; c < Nc; ++c, ++offset) perm[offset] = (oelb+j)*Nc + c + foffset;
4376: for (o = ofk+j*(k-1)+(k-2); o >= ofk+j*(k-1); --o) for (c = 0; c < Nc; ++c, ++offset) perm[offset] = o*Nc + c + foffset;
4377: for (c = 0; c < Nc; ++c, ++offset) perm[offset] = (oerb+(k-2)-j)*Nc + c + foffset;
4378: }
4380: /* Top Slice */
4381: /* bottom */
4382: for (c = 0; c < Nc; ++c, ++offset) perm[offset] = ovtlf*Nc + c + foffset;
4383: for (o = oetf; o < oetr; ++o) for (c = 0; c < Nc; ++c, ++offset) perm[offset] = o*Nc + c + foffset;
4384: for (c = 0; c < Nc; ++c, ++offset) perm[offset] = ovtrf*Nc + c + foffset;
4385: /* middle */
4386: for (i = 0; i < k-1; ++i) {
4387: for (c = 0; c < Nc; ++c, ++offset) perm[offset] = (oetl+(k-2)-i)*Nc + c + foffset;
4388: for (n = 0; n < k-1; ++n) for (c = 0; c < Nc; ++c, ++offset) perm[offset] = (oft+i*(k-1)+n)*Nc + c + foffset;
4389: for (c = 0; c < Nc; ++c, ++offset) perm[offset] = (oetr+i)*Nc + c + foffset;
4390: }
4391: /* top */
4392: for (c = 0; c < Nc; ++c, ++offset) perm[offset] = ovtlb*Nc + c + foffset;
4393: for (o = oetl-1; o >= oetb; --o) for (c = 0; c < Nc; ++c, ++offset) perm[offset] = o*Nc + c + foffset;
4394: for (c = 0; c < Nc; ++c, ++offset) perm[offset] = ovtrb*Nc + c + foffset;
4396: foffset = offset;
4397: }
4398: break;
4399: default: SETERRQ1(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_OUTOFRANGE, "No spectral ordering for dimension %D", d);
4400: }
4401: }
4402: if (offset != size) SETERRQ2(PetscObjectComm((PetscObject) dm), PETSC_ERR_PLIB, "Number of permutation entries %D != %D", offset, size);
4403: /* Check permutation */
4404: {
4405: PetscInt *check;
4407: PetscMalloc1(size, &check);
4408: for (i = 0; i < size; ++i) {check[i] = -1; if (perm[i] < 0 || perm[i] >= size) SETERRQ2(PetscObjectComm((PetscObject) dm), PETSC_ERR_PLIB, "Invalid permutation index p[%D] = %D", i, perm[i]);}
4409: for (i = 0; i < size; ++i) check[perm[i]] = i;
4410: for (i = 0; i < size; ++i) {if (check[i] < 0) SETERRQ1(PetscObjectComm((PetscObject) dm), PETSC_ERR_PLIB, "Missing permutation index %D", i);}
4411: PetscFree(check);
4412: }
4413: PetscSectionSetClosurePermutation_Internal(section, (PetscObject) dm, d, size, PETSC_OWN_POINTER, perm);
4414: }
4415: return(0);
4416: }
4418: PetscErrorCode DMPlexGetPointDualSpaceFEM(DM dm, PetscInt point, PetscInt field, PetscDualSpace *dspace)
4419: {
4420: PetscDS prob;
4421: PetscInt depth, Nf, h;
4422: DMLabel label;
4426: DMGetDS(dm, &prob);
4427: Nf = prob->Nf;
4428: label = dm->depthLabel;
4429: *dspace = NULL;
4430: if (field < Nf) {
4431: PetscObject disc = prob->disc[field];
4433: if (disc->classid == PETSCFE_CLASSID) {
4434: PetscDualSpace dsp;
4436: PetscFEGetDualSpace((PetscFE)disc,&dsp);
4437: DMLabelGetNumValues(label,&depth);
4438: DMLabelGetValue(label,point,&h);
4439: h = depth - 1 - h;
4440: if (h) {
4441: PetscDualSpaceGetHeightSubspace(dsp,h,dspace);
4442: } else {
4443: *dspace = dsp;
4444: }
4445: }
4446: }
4447: return(0);
4448: }
4451: PETSC_STATIC_INLINE PetscErrorCode DMPlexVecGetClosure_Depth1_Static(DM dm, PetscSection section, Vec v, PetscInt point, PetscInt *csize, PetscScalar *values[])
4452: {
4453: PetscScalar *array, *vArray;
4454: const PetscInt *cone, *coneO;
4455: PetscInt pStart, pEnd, p, numPoints, size = 0, offset = 0;
4456: PetscErrorCode ierr;
4459: PetscSectionGetChart(section, &pStart, &pEnd);
4460: DMPlexGetConeSize(dm, point, &numPoints);
4461: DMPlexGetCone(dm, point, &cone);
4462: DMPlexGetConeOrientation(dm, point, &coneO);
4463: if (!values || !*values) {
4464: if ((point >= pStart) && (point < pEnd)) {
4465: PetscInt dof;
4467: PetscSectionGetDof(section, point, &dof);
4468: size += dof;
4469: }
4470: for (p = 0; p < numPoints; ++p) {
4471: const PetscInt cp = cone[p];
4472: PetscInt dof;
4474: if ((cp < pStart) || (cp >= pEnd)) continue;
4475: PetscSectionGetDof(section, cp, &dof);
4476: size += dof;
4477: }
4478: if (!values) {
4479: if (csize) *csize = size;
4480: return(0);
4481: }
4482: DMGetWorkArray(dm, size, MPIU_SCALAR, &array);
4483: } else {
4484: array = *values;
4485: }
4486: size = 0;
4487: VecGetArray(v, &vArray);
4488: if ((point >= pStart) && (point < pEnd)) {
4489: PetscInt dof, off, d;
4490: PetscScalar *varr;
4492: PetscSectionGetDof(section, point, &dof);
4493: PetscSectionGetOffset(section, point, &off);
4494: varr = &vArray[off];
4495: for (d = 0; d < dof; ++d, ++offset) {
4496: array[offset] = varr[d];
4497: }
4498: size += dof;
4499: }
4500: for (p = 0; p < numPoints; ++p) {
4501: const PetscInt cp = cone[p];
4502: PetscInt o = coneO[p];
4503: PetscInt dof, off, d;
4504: PetscScalar *varr;
4506: if ((cp < pStart) || (cp >= pEnd)) continue;
4507: PetscSectionGetDof(section, cp, &dof);
4508: PetscSectionGetOffset(section, cp, &off);
4509: varr = &vArray[off];
4510: if (o >= 0) {
4511: for (d = 0; d < dof; ++d, ++offset) {
4512: array[offset] = varr[d];
4513: }
4514: } else {
4515: for (d = dof-1; d >= 0; --d, ++offset) {
4516: array[offset] = varr[d];
4517: }
4518: }
4519: size += dof;
4520: }
4521: VecRestoreArray(v, &vArray);
4522: if (!*values) {
4523: if (csize) *csize = size;
4524: *values = array;
4525: } else {
4526: if (size > *csize) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Size of input array %D < actual size %D", *csize, size);
4527: *csize = size;
4528: }
4529: return(0);
4530: }
4532: /* Compress out points not in the section */
4533: PETSC_STATIC_INLINE PetscErrorCode CompressPoints_Private(PetscSection section, PetscInt *numPoints, PetscInt points[])
4534: {
4535: const PetscInt np = *numPoints;
4536: PetscInt pStart, pEnd, p, q;
4539: PetscSectionGetChart(section, &pStart, &pEnd);
4540: for (p = 0, q = 0; p < np; ++p) {
4541: const PetscInt r = points[p*2];
4542: if ((r >= pStart) && (r < pEnd)) {
4543: points[q*2] = r;
4544: points[q*2+1] = points[p*2+1];
4545: ++q;
4546: }
4547: }
4548: *numPoints = q;
4549: return 0;
4550: }
4552: static PetscErrorCode DMPlexTransitiveClosure_Hybrid_Internal(DM dm, PetscInt point, PetscInt np, PetscInt *numPoints, PetscInt **points)
4553: {
4554: const PetscInt *cone, *ornt;
4555: PetscInt *pts, *closure = NULL;
4556: PetscInt dim, coneSize, c, d, clSize, cl;
4557: PetscErrorCode ierr;
4560: DMGetDimension(dm, &dim);
4561: DMPlexGetConeSize(dm, point, &coneSize);
4562: DMPlexGetCone(dm, point, &cone);
4563: DMPlexGetConeOrientation(dm, point, &ornt);
4564: DMPlexGetTransitiveClosure(dm, cone[0], PETSC_TRUE, &clSize, &closure);
4565: DMGetWorkArray(dm, np*2, MPIU_INT, &pts);
4566: c = 0;
4567: pts[c*2+0] = point;
4568: pts[c*2+1] = 0;
4569: ++c;
4570: for (cl = 0; cl < clSize*2; cl += 2, ++c) {pts[c*2+0] = closure[cl]; pts[c*2+1] = closure[cl+1];}
4571: DMPlexGetTransitiveClosure(dm, cone[1], PETSC_TRUE, &clSize, &closure);
4572: for (cl = 0; cl < clSize*2; cl += 2, ++c) {pts[c*2+0] = closure[cl]; pts[c*2+1] = closure[cl+1];}
4573: DMPlexRestoreTransitiveClosure(dm, cone[0], PETSC_TRUE, &clSize, &closure);
4574: if (dim >= 2) {
4575: for (d = 2; d < coneSize; ++d, ++c) {pts[c*2+0] = cone[d]; pts[c*2+1] = ornt[d];}
4576: }
4577: if (dim >= 3) {
4578: for (d = 2; d < coneSize; ++d) {
4579: const PetscInt fpoint = cone[d];
4580: const PetscInt *fcone;
4581: PetscInt fconeSize, fc, i;
4583: DMPlexGetConeSize(dm, fpoint, &fconeSize);
4584: DMPlexGetCone(dm, fpoint, &fcone);
4585: for (fc = 0; fc < fconeSize; ++fc) {
4586: for (i = 0; i < c; ++i) if (pts[i*2] == fcone[fc]) break;
4587: if (i == c) {pts[c*2+0] = fcone[fc]; pts[c*2+1] = 0; ++c;}
4588: }
4589: }
4590: }
4591: if (c != np) SETERRQ3(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Invalid closure for hybrid point %D, size %D != %D", point, c, np);
4592: *numPoints = np;
4593: *points = pts;
4594: return(0);
4595: }
4597: /* Compressed closure does not apply closure permutation */
4598: PetscErrorCode DMPlexGetCompressedClosure(DM dm, PetscSection section, PetscInt point, PetscInt *numPoints, PetscInt **points, PetscSection *clSec, IS *clPoints, const PetscInt **clp)
4599: {
4600: const PetscInt *cla = NULL;
4601: PetscInt np, *pts = NULL;
4605: PetscSectionGetClosureIndex(section, (PetscObject) dm, clSec, clPoints);
4606: if (*clPoints) {
4607: PetscInt dof, off;
4609: PetscSectionGetDof(*clSec, point, &dof);
4610: PetscSectionGetOffset(*clSec, point, &off);
4611: ISGetIndices(*clPoints, &cla);
4612: np = dof/2;
4613: pts = (PetscInt *) &cla[off];
4614: } else {
4615: DMPolytopeType ct;
4617: /* Do not make the label if it does not exist */
4618: if (!dm->celltypeLabel) {ct = DM_POLYTOPE_POINT;}
4619: else {DMPlexGetCellType(dm, point, &ct);}
4620: switch (ct) {
4621: case DM_POLYTOPE_SEG_PRISM_TENSOR:
4622: DMPlexTransitiveClosure_Hybrid_Internal(dm, point, 9, &np, &pts);
4623: break;
4624: case DM_POLYTOPE_TRI_PRISM_TENSOR:
4625: DMPlexTransitiveClosure_Hybrid_Internal(dm, point, 21, &np, &pts);
4626: break;
4627: case DM_POLYTOPE_QUAD_PRISM_TENSOR:
4628: DMPlexTransitiveClosure_Hybrid_Internal(dm, point, 27, &np, &pts);
4629: break;
4630: default:
4631: DMPlexGetTransitiveClosure(dm, point, PETSC_TRUE, &np, &pts);
4632: }
4633: CompressPoints_Private(section, &np, pts);
4634: }
4635: *numPoints = np;
4636: *points = pts;
4637: *clp = cla;
4638: return(0);
4639: }
4641: PetscErrorCode DMPlexRestoreCompressedClosure(DM dm, PetscSection section, PetscInt point, PetscInt *numPoints, PetscInt **points, PetscSection *clSec, IS *clPoints, const PetscInt **clp)
4642: {
4646: if (!*clPoints) {
4647: DMPlexRestoreTransitiveClosure(dm, point, PETSC_TRUE, numPoints, points);
4648: } else {
4649: ISRestoreIndices(*clPoints, clp);
4650: }
4651: *numPoints = 0;
4652: *points = NULL;
4653: *clSec = NULL;
4654: *clPoints = NULL;
4655: *clp = NULL;
4656: return(0);
4657: }
4659: PETSC_STATIC_INLINE PetscErrorCode DMPlexVecGetClosure_Static(DM dm, PetscSection section, PetscInt numPoints, const PetscInt points[], const PetscInt clperm[], const PetscScalar vArray[], PetscInt *size, PetscScalar array[])
4660: {
4661: PetscInt offset = 0, p;
4662: const PetscInt **perms = NULL;
4663: const PetscScalar **flips = NULL;
4664: PetscErrorCode ierr;
4667: *size = 0;
4668: PetscSectionGetPointSyms(section,numPoints,points,&perms,&flips);
4669: for (p = 0; p < numPoints; p++) {
4670: const PetscInt point = points[2*p];
4671: const PetscInt *perm = perms ? perms[p] : NULL;
4672: const PetscScalar *flip = flips ? flips[p] : NULL;
4673: PetscInt dof, off, d;
4674: const PetscScalar *varr;
4676: PetscSectionGetDof(section, point, &dof);
4677: PetscSectionGetOffset(section, point, &off);
4678: varr = &vArray[off];
4679: if (clperm) {
4680: if (perm) {
4681: for (d = 0; d < dof; d++) array[clperm[offset + perm[d]]] = varr[d];
4682: } else {
4683: for (d = 0; d < dof; d++) array[clperm[offset + d ]] = varr[d];
4684: }
4685: if (flip) {
4686: for (d = 0; d < dof; d++) array[clperm[offset + d ]] *= flip[d];
4687: }
4688: } else {
4689: if (perm) {
4690: for (d = 0; d < dof; d++) array[offset + perm[d]] = varr[d];
4691: } else {
4692: for (d = 0; d < dof; d++) array[offset + d ] = varr[d];
4693: }
4694: if (flip) {
4695: for (d = 0; d < dof; d++) array[offset + d ] *= flip[d];
4696: }
4697: }
4698: offset += dof;
4699: }
4700: PetscSectionRestorePointSyms(section,numPoints,points,&perms,&flips);
4701: *size = offset;
4702: return(0);
4703: }
4705: PETSC_STATIC_INLINE PetscErrorCode DMPlexVecGetClosure_Fields_Static(DM dm, PetscSection section, PetscInt numPoints, const PetscInt points[], PetscInt numFields, const PetscInt clperm[], const PetscScalar vArray[], PetscInt *size, PetscScalar array[])
4706: {
4707: PetscInt offset = 0, f;
4708: PetscErrorCode ierr;
4711: *size = 0;
4712: for (f = 0; f < numFields; ++f) {
4713: PetscInt p;
4714: const PetscInt **perms = NULL;
4715: const PetscScalar **flips = NULL;
4717: PetscSectionGetFieldPointSyms(section,f,numPoints,points,&perms,&flips);
4718: for (p = 0; p < numPoints; p++) {
4719: const PetscInt point = points[2*p];
4720: PetscInt fdof, foff, b;
4721: const PetscScalar *varr;
4722: const PetscInt *perm = perms ? perms[p] : NULL;
4723: const PetscScalar *flip = flips ? flips[p] : NULL;
4725: PetscSectionGetFieldDof(section, point, f, &fdof);
4726: PetscSectionGetFieldOffset(section, point, f, &foff);
4727: varr = &vArray[foff];
4728: if (clperm) {
4729: if (perm) {for (b = 0; b < fdof; b++) {array[clperm[offset + perm[b]]] = varr[b];}}
4730: else {for (b = 0; b < fdof; b++) {array[clperm[offset + b ]] = varr[b];}}
4731: if (flip) {for (b = 0; b < fdof; b++) {array[clperm[offset + b ]] *= flip[b];}}
4732: } else {
4733: if (perm) {for (b = 0; b < fdof; b++) {array[offset + perm[b]] = varr[b];}}
4734: else {for (b = 0; b < fdof; b++) {array[offset + b ] = varr[b];}}
4735: if (flip) {for (b = 0; b < fdof; b++) {array[offset + b ] *= flip[b];}}
4736: }
4737: offset += fdof;
4738: }
4739: PetscSectionRestoreFieldPointSyms(section,f,numPoints,points,&perms,&flips);
4740: }
4741: *size = offset;
4742: return(0);
4743: }
4745: /*@C
4746: DMPlexVecGetClosure - Get an array of the values on the closure of 'point'
4748: Not collective
4750: Input Parameters:
4751: + dm - The DM
4752: . section - The section describing the layout in v, or NULL to use the default section
4753: . v - The local vector
4754: . point - The point in the DM
4755: . csize - The size of the input values array, or NULL
4756: - values - An array to use for the values, or NULL to have it allocated automatically
4758: Output Parameters:
4759: + csize - The number of values in the closure
4760: - values - The array of values. If the user provided NULL, it is a borrowed array and should not be freed
4762: $ Note that DMPlexVecGetClosure/DMPlexVecRestoreClosure only allocates the values array if it set to NULL in the
4763: $ calling function. This is because DMPlexVecGetClosure() is typically called in the inner loop of a Vec or Mat
4764: $ assembly function, and a user may already have allocated storage for this operation.
4765: $
4766: $ A typical use could be
4767: $
4768: $ values = NULL;
4769: $ DMPlexVecGetClosure(dm, NULL, v, p, &clSize, &values);
4770: $ for (cl = 0; cl < clSize; ++cl) {
4771: $ <Compute on closure>
4772: $ }
4773: $ DMPlexVecRestoreClosure(dm, NULL, v, p, &clSize, &values);
4774: $
4775: $ or
4776: $
4777: $ PetscMalloc1(clMaxSize, &values);
4778: $ for (p = pStart; p < pEnd; ++p) {
4779: $ clSize = clMaxSize;
4780: $ DMPlexVecGetClosure(dm, NULL, v, p, &clSize, &values);
4781: $ for (cl = 0; cl < clSize; ++cl) {
4782: $ <Compute on closure>
4783: $ }
4784: $ }
4785: $ PetscFree(values);
4787: Fortran Notes:
4788: Since it returns an array, this routine is only available in Fortran 90, and you must
4789: include petsc.h90 in your code.
4791: The csize argument is not present in the Fortran 90 binding since it is internal to the array.
4793: Level: intermediate
4795: .seealso DMPlexVecRestoreClosure(), DMPlexVecSetClosure(), DMPlexMatSetClosure()
4796: @*/
4797: PetscErrorCode DMPlexVecGetClosure(DM dm, PetscSection section, Vec v, PetscInt point, PetscInt *csize, PetscScalar *values[])
4798: {
4799: PetscSection clSection;
4800: IS clPoints;
4801: PetscInt *points = NULL;
4802: const PetscInt *clp, *perm;
4803: PetscInt depth, numFields, numPoints, asize;
4804: PetscErrorCode ierr;
4808: if (!section) {DMGetLocalSection(dm, §ion);}
4811: DMPlexGetDepth(dm, &depth);
4812: PetscSectionGetNumFields(section, &numFields);
4813: if (depth == 1 && numFields < 2) {
4814: DMPlexVecGetClosure_Depth1_Static(dm, section, v, point, csize, values);
4815: return(0);
4816: }
4817: /* Get points */
4818: DMPlexGetCompressedClosure(dm,section,point,&numPoints,&points,&clSection,&clPoints,&clp);
4819: /* Get sizes */
4820: asize = 0;
4821: for (PetscInt p = 0; p < numPoints*2; p += 2) {
4822: PetscInt dof;
4823: PetscSectionGetDof(section, points[p], &dof);
4824: asize += dof;
4825: }
4826: if (values) {
4827: const PetscScalar *vArray;
4828: PetscInt size;
4830: if (*values) {
4831: if (PetscUnlikely(*csize < asize)) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Provided array size %D not sufficient to hold closure size %D", *csize, asize);
4832: } else {DMGetWorkArray(dm, asize, MPIU_SCALAR, values);}
4833: PetscSectionGetClosureInversePermutation_Internal(section, (PetscObject) dm, depth, asize, &perm);
4834: VecGetArrayRead(v, &vArray);
4835: /* Get values */
4836: if (numFields > 0) {DMPlexVecGetClosure_Fields_Static(dm, section, numPoints, points, numFields, perm, vArray, &size, *values);}
4837: else {DMPlexVecGetClosure_Static(dm, section, numPoints, points, perm, vArray, &size, *values);}
4838: if (PetscUnlikely(asize != size)) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Section size %D does not match Vec closure size %D", asize, size);
4839: /* Cleanup array */
4840: VecRestoreArrayRead(v, &vArray);
4841: }
4842: if (csize) *csize = asize;
4843: /* Cleanup points */
4844: DMPlexRestoreCompressedClosure(dm,section,point,&numPoints,&points,&clSection,&clPoints,&clp);
4845: return(0);
4846: }
4848: PetscErrorCode DMPlexVecGetClosureAtDepth_Internal(DM dm, PetscSection section, Vec v, PetscInt point, PetscInt depth, PetscInt *csize, PetscScalar *values[])
4849: {
4850: DMLabel depthLabel;
4851: PetscSection clSection;
4852: IS clPoints;
4853: PetscScalar *array;
4854: const PetscScalar *vArray;
4855: PetscInt *points = NULL;
4856: const PetscInt *clp, *perm = NULL;
4857: PetscInt mdepth, numFields, numPoints, Np = 0, p, clsize, size;
4858: PetscErrorCode ierr;
4862: if (!section) {DMGetLocalSection(dm, §ion);}
4865: DMPlexGetDepth(dm, &mdepth);
4866: DMPlexGetDepthLabel(dm, &depthLabel);
4867: PetscSectionGetNumFields(section, &numFields);
4868: if (mdepth == 1 && numFields < 2) {
4869: DMPlexVecGetClosure_Depth1_Static(dm, section, v, point, csize, values);
4870: return(0);
4871: }
4872: /* Get points */
4873: DMPlexGetCompressedClosure(dm,section,point,&numPoints,&points,&clSection,&clPoints,&clp);
4874: for (clsize=0,p=0; p<Np; p++) {
4875: PetscInt dof;
4876: PetscSectionGetDof(section, points[2*p], &dof);
4877: clsize += dof;
4878: }
4879: PetscSectionGetClosureInversePermutation_Internal(section, (PetscObject) dm, depth, clsize, &perm);
4880: /* Filter points */
4881: for (p = 0; p < numPoints*2; p += 2) {
4882: PetscInt dep;
4884: DMLabelGetValue(depthLabel, points[p], &dep);
4885: if (dep != depth) continue;
4886: points[Np*2+0] = points[p];
4887: points[Np*2+1] = points[p+1];
4888: ++Np;
4889: }
4890: /* Get array */
4891: if (!values || !*values) {
4892: PetscInt asize = 0, dof;
4894: for (p = 0; p < Np*2; p += 2) {
4895: PetscSectionGetDof(section, points[p], &dof);
4896: asize += dof;
4897: }
4898: if (!values) {
4899: DMPlexRestoreCompressedClosure(dm,section,point,&numPoints,&points,&clSection,&clPoints,&clp);
4900: if (csize) *csize = asize;
4901: return(0);
4902: }
4903: DMGetWorkArray(dm, asize, MPIU_SCALAR, &array);
4904: } else {
4905: array = *values;
4906: }
4907: VecGetArrayRead(v, &vArray);
4908: /* Get values */
4909: if (numFields > 0) {DMPlexVecGetClosure_Fields_Static(dm, section, Np, points, numFields, perm, vArray, &size, array);}
4910: else {DMPlexVecGetClosure_Static(dm, section, Np, points, perm, vArray, &size, array);}
4911: /* Cleanup points */
4912: DMPlexRestoreCompressedClosure(dm,section,point,&numPoints,&points,&clSection,&clPoints,&clp);
4913: /* Cleanup array */
4914: VecRestoreArrayRead(v, &vArray);
4915: if (!*values) {
4916: if (csize) *csize = size;
4917: *values = array;
4918: } else {
4919: if (size > *csize) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Size of input array %D < actual size %D", *csize, size);
4920: *csize = size;
4921: }
4922: return(0);
4923: }
4925: /*@C
4926: DMPlexVecRestoreClosure - Restore the array of the values on the closure of 'point'
4928: Not collective
4930: Input Parameters:
4931: + dm - The DM
4932: . section - The section describing the layout in v, or NULL to use the default section
4933: . v - The local vector
4934: . point - The point in the DM
4935: . csize - The number of values in the closure, or NULL
4936: - values - The array of values, which is a borrowed array and should not be freed
4938: Note that the array values are discarded and not copied back into v. In order to copy values back to v, use DMPlexVecSetClosure()
4940: Fortran Notes:
4941: Since it returns an array, this routine is only available in Fortran 90, and you must
4942: include petsc.h90 in your code.
4944: The csize argument is not present in the Fortran 90 binding since it is internal to the array.
4946: Level: intermediate
4948: .seealso DMPlexVecGetClosure(), DMPlexVecSetClosure(), DMPlexMatSetClosure()
4949: @*/
4950: PetscErrorCode DMPlexVecRestoreClosure(DM dm, PetscSection section, Vec v, PetscInt point, PetscInt *csize, PetscScalar *values[])
4951: {
4952: PetscInt size = 0;
4956: /* Should work without recalculating size */
4957: DMRestoreWorkArray(dm, size, MPIU_SCALAR, (void*) values);
4958: *values = NULL;
4959: return(0);
4960: }
4962: PETSC_STATIC_INLINE void add (PetscScalar *x, PetscScalar y) {*x += y;}
4963: PETSC_STATIC_INLINE void insert(PetscScalar *x, PetscScalar y) {*x = y;}
4965: PETSC_STATIC_INLINE PetscErrorCode updatePoint_private(PetscSection section, PetscInt point, PetscInt dof, void (*fuse)(PetscScalar*, PetscScalar), PetscBool setBC, const PetscInt perm[], const PetscScalar flip[], const PetscInt clperm[], const PetscScalar values[], PetscInt offset, PetscScalar array[])
4966: {
4967: PetscInt cdof; /* The number of constraints on this point */
4968: const PetscInt *cdofs; /* The indices of the constrained dofs on this point */
4969: PetscScalar *a;
4970: PetscInt off, cind = 0, k;
4971: PetscErrorCode ierr;
4974: PetscSectionGetConstraintDof(section, point, &cdof);
4975: PetscSectionGetOffset(section, point, &off);
4976: a = &array[off];
4977: if (!cdof || setBC) {
4978: if (clperm) {
4979: if (perm) {for (k = 0; k < dof; ++k) {fuse(&a[k], values[clperm[offset+perm[k]]] * (flip ? flip[perm[k]] : 1.));}}
4980: else {for (k = 0; k < dof; ++k) {fuse(&a[k], values[clperm[offset+ k ]] * (flip ? flip[ k ] : 1.));}}
4981: } else {
4982: if (perm) {for (k = 0; k < dof; ++k) {fuse(&a[k], values[offset+perm[k]] * (flip ? flip[perm[k]] : 1.));}}
4983: else {for (k = 0; k < dof; ++k) {fuse(&a[k], values[offset+ k ] * (flip ? flip[ k ] : 1.));}}
4984: }
4985: } else {
4986: PetscSectionGetConstraintIndices(section, point, &cdofs);
4987: if (clperm) {
4988: if (perm) {for (k = 0; k < dof; ++k) {
4989: if ((cind < cdof) && (k == cdofs[cind])) {++cind; continue;}
4990: fuse(&a[k], values[clperm[offset+perm[k]]] * (flip ? flip[perm[k]] : 1.));
4991: }
4992: } else {
4993: for (k = 0; k < dof; ++k) {
4994: if ((cind < cdof) && (k == cdofs[cind])) {++cind; continue;}
4995: fuse(&a[k], values[clperm[offset+ k ]] * (flip ? flip[ k ] : 1.));
4996: }
4997: }
4998: } else {
4999: if (perm) {
5000: for (k = 0; k < dof; ++k) {
5001: if ((cind < cdof) && (k == cdofs[cind])) {++cind; continue;}
5002: fuse(&a[k], values[offset+perm[k]] * (flip ? flip[perm[k]] : 1.));
5003: }
5004: } else {
5005: for (k = 0; k < dof; ++k) {
5006: if ((cind < cdof) && (k == cdofs[cind])) {++cind; continue;}
5007: fuse(&a[k], values[offset+ k ] * (flip ? flip[ k ] : 1.));
5008: }
5009: }
5010: }
5011: }
5012: return(0);
5013: }
5015: PETSC_STATIC_INLINE PetscErrorCode updatePointBC_private(PetscSection section, PetscInt point, PetscInt dof, void (*fuse)(PetscScalar*, PetscScalar), const PetscInt perm[], const PetscScalar flip[], const PetscInt clperm[], const PetscScalar values[], PetscInt offset, PetscScalar array[])
5016: {
5017: PetscInt cdof; /* The number of constraints on this point */
5018: const PetscInt *cdofs; /* The indices of the constrained dofs on this point */
5019: PetscScalar *a;
5020: PetscInt off, cind = 0, k;
5021: PetscErrorCode ierr;
5024: PetscSectionGetConstraintDof(section, point, &cdof);
5025: PetscSectionGetOffset(section, point, &off);
5026: a = &array[off];
5027: if (cdof) {
5028: PetscSectionGetConstraintIndices(section, point, &cdofs);
5029: if (clperm) {
5030: if (perm) {
5031: for (k = 0; k < dof; ++k) {
5032: if ((cind < cdof) && (k == cdofs[cind])) {
5033: fuse(&a[k], values[clperm[offset+perm[k]]] * (flip ? flip[perm[k]] : 1.));
5034: cind++;
5035: }
5036: }
5037: } else {
5038: for (k = 0; k < dof; ++k) {
5039: if ((cind < cdof) && (k == cdofs[cind])) {
5040: fuse(&a[k], values[clperm[offset+ k ]] * (flip ? flip[ k ] : 1.));
5041: cind++;
5042: }
5043: }
5044: }
5045: } else {
5046: if (perm) {
5047: for (k = 0; k < dof; ++k) {
5048: if ((cind < cdof) && (k == cdofs[cind])) {
5049: fuse(&a[k], values[offset+perm[k]] * (flip ? flip[perm[k]] : 1.));
5050: cind++;
5051: }
5052: }
5053: } else {
5054: for (k = 0; k < dof; ++k) {
5055: if ((cind < cdof) && (k == cdofs[cind])) {
5056: fuse(&a[k], values[offset+ k ] * (flip ? flip[ k ] : 1.));
5057: cind++;
5058: }
5059: }
5060: }
5061: }
5062: }
5063: return(0);
5064: }
5066: PETSC_STATIC_INLINE PetscErrorCode updatePointFields_private(PetscSection section, PetscInt point, const PetscInt *perm, const PetscScalar *flip, PetscInt f, void (*fuse)(PetscScalar*, PetscScalar), PetscBool setBC, const PetscInt clperm[], const PetscScalar values[], PetscInt *offset, PetscScalar array[])
5067: {
5068: PetscScalar *a;
5069: PetscInt fdof, foff, fcdof, foffset = *offset;
5070: const PetscInt *fcdofs; /* The indices of the constrained dofs for field f on this point */
5071: PetscInt cind = 0, b;
5072: PetscErrorCode ierr;
5075: PetscSectionGetFieldDof(section, point, f, &fdof);
5076: PetscSectionGetFieldConstraintDof(section, point, f, &fcdof);
5077: PetscSectionGetFieldOffset(section, point, f, &foff);
5078: a = &array[foff];
5079: if (!fcdof || setBC) {
5080: if (clperm) {
5081: if (perm) {for (b = 0; b < fdof; b++) {fuse(&a[b], values[clperm[foffset+perm[b]]] * (flip ? flip[perm[b]] : 1.));}}
5082: else {for (b = 0; b < fdof; b++) {fuse(&a[b], values[clperm[foffset+ b ]] * (flip ? flip[ b ] : 1.));}}
5083: } else {
5084: if (perm) {for (b = 0; b < fdof; b++) {fuse(&a[b], values[foffset+perm[b]] * (flip ? flip[perm[b]] : 1.));}}
5085: else {for (b = 0; b < fdof; b++) {fuse(&a[b], values[foffset+ b ] * (flip ? flip[ b ] : 1.));}}
5086: }
5087: } else {
5088: PetscSectionGetFieldConstraintIndices(section, point, f, &fcdofs);
5089: if (clperm) {
5090: if (perm) {
5091: for (b = 0; b < fdof; b++) {
5092: if ((cind < fcdof) && (b == fcdofs[cind])) {++cind; continue;}
5093: fuse(&a[b], values[clperm[foffset+perm[b]]] * (flip ? flip[perm[b]] : 1.));
5094: }
5095: } else {
5096: for (b = 0; b < fdof; b++) {
5097: if ((cind < fcdof) && (b == fcdofs[cind])) {++cind; continue;}
5098: fuse(&a[b], values[clperm[foffset+ b ]] * (flip ? flip[ b ] : 1.));
5099: }
5100: }
5101: } else {
5102: if (perm) {
5103: for (b = 0; b < fdof; b++) {
5104: if ((cind < fcdof) && (b == fcdofs[cind])) {++cind; continue;}
5105: fuse(&a[b], values[foffset+perm[b]] * (flip ? flip[perm[b]] : 1.));
5106: }
5107: } else {
5108: for (b = 0; b < fdof; b++) {
5109: if ((cind < fcdof) && (b == fcdofs[cind])) {++cind; continue;}
5110: fuse(&a[b], values[foffset+ b ] * (flip ? flip[ b ] : 1.));
5111: }
5112: }
5113: }
5114: }
5115: *offset += fdof;
5116: return(0);
5117: }
5119: PETSC_STATIC_INLINE PetscErrorCode updatePointFieldsBC_private(PetscSection section, PetscInt point, const PetscInt perm[], const PetscScalar flip[], PetscInt f, PetscInt Ncc, const PetscInt comps[], void (*fuse)(PetscScalar*, PetscScalar), const PetscInt clperm[], const PetscScalar values[], PetscInt *offset, PetscScalar array[])
5120: {
5121: PetscScalar *a;
5122: PetscInt fdof, foff, fcdof, foffset = *offset;
5123: const PetscInt *fcdofs; /* The indices of the constrained dofs for field f on this point */
5124: PetscInt Nc, cind = 0, ncind = 0, b;
5125: PetscBool ncSet, fcSet;
5126: PetscErrorCode ierr;
5129: PetscSectionGetFieldComponents(section, f, &Nc);
5130: PetscSectionGetFieldDof(section, point, f, &fdof);
5131: PetscSectionGetFieldConstraintDof(section, point, f, &fcdof);
5132: PetscSectionGetFieldOffset(section, point, f, &foff);
5133: a = &array[foff];
5134: if (fcdof) {
5135: /* We just override fcdof and fcdofs with Ncc and comps */
5136: PetscSectionGetFieldConstraintIndices(section, point, f, &fcdofs);
5137: if (clperm) {
5138: if (perm) {
5139: if (comps) {
5140: for (b = 0; b < fdof; b++) {
5141: ncSet = fcSet = PETSC_FALSE;
5142: if (b%Nc == comps[ncind]) {ncind = (ncind+1)%Ncc; ncSet = PETSC_TRUE;}
5143: if ((cind < fcdof) && (b == fcdofs[cind])) {++cind; fcSet = PETSC_TRUE;}
5144: if (ncSet && fcSet) {fuse(&a[b], values[clperm[foffset+perm[b]]] * (flip ? flip[perm[b]] : 1.));}
5145: }
5146: } else {
5147: for (b = 0; b < fdof; b++) {
5148: if ((cind < fcdof) && (b == fcdofs[cind])) {
5149: fuse(&a[b], values[clperm[foffset+perm[b]]] * (flip ? flip[perm[b]] : 1.));
5150: ++cind;
5151: }
5152: }
5153: }
5154: } else {
5155: if (comps) {
5156: for (b = 0; b < fdof; b++) {
5157: ncSet = fcSet = PETSC_FALSE;
5158: if (b%Nc == comps[ncind]) {ncind = (ncind+1)%Ncc; ncSet = PETSC_TRUE;}
5159: if ((cind < fcdof) && (b == fcdofs[cind])) {++cind; fcSet = PETSC_TRUE;}
5160: if (ncSet && fcSet) {fuse(&a[b], values[clperm[foffset+ b ]] * (flip ? flip[ b ] : 1.));}
5161: }
5162: } else {
5163: for (b = 0; b < fdof; b++) {
5164: if ((cind < fcdof) && (b == fcdofs[cind])) {
5165: fuse(&a[b], values[clperm[foffset+ b ]] * (flip ? flip[ b ] : 1.));
5166: ++cind;
5167: }
5168: }
5169: }
5170: }
5171: } else {
5172: if (perm) {
5173: if (comps) {
5174: for (b = 0; b < fdof; b++) {
5175: ncSet = fcSet = PETSC_FALSE;
5176: if (b%Nc == comps[ncind]) {ncind = (ncind+1)%Ncc; ncSet = PETSC_TRUE;}
5177: if ((cind < fcdof) && (b == fcdofs[cind])) {++cind; fcSet = PETSC_TRUE;}
5178: if (ncSet && fcSet) {fuse(&a[b], values[foffset+perm[b]] * (flip ? flip[perm[b]] : 1.));}
5179: }
5180: } else {
5181: for (b = 0; b < fdof; b++) {
5182: if ((cind < fcdof) && (b == fcdofs[cind])) {
5183: fuse(&a[b], values[foffset+perm[b]] * (flip ? flip[perm[b]] : 1.));
5184: ++cind;
5185: }
5186: }
5187: }
5188: } else {
5189: if (comps) {
5190: for (b = 0; b < fdof; b++) {
5191: ncSet = fcSet = PETSC_FALSE;
5192: if (b%Nc == comps[ncind]) {ncind = (ncind+1)%Ncc; ncSet = PETSC_TRUE;}
5193: if ((cind < fcdof) && (b == fcdofs[cind])) {++cind; fcSet = PETSC_TRUE;}
5194: if (ncSet && fcSet) {fuse(&a[b], values[foffset+ b ] * (flip ? flip[ b ] : 1.));}
5195: }
5196: } else {
5197: for (b = 0; b < fdof; b++) {
5198: if ((cind < fcdof) && (b == fcdofs[cind])) {
5199: fuse(&a[b], values[foffset+ b ] * (flip ? flip[ b ] : 1.));
5200: ++cind;
5201: }
5202: }
5203: }
5204: }
5205: }
5206: }
5207: *offset += fdof;
5208: return(0);
5209: }
5211: PETSC_STATIC_INLINE PetscErrorCode DMPlexVecSetClosure_Depth1_Static(DM dm, PetscSection section, Vec v, PetscInt point, const PetscScalar values[], InsertMode mode)
5212: {
5213: PetscScalar *array;
5214: const PetscInt *cone, *coneO;
5215: PetscInt pStart, pEnd, p, numPoints, off, dof;
5216: PetscErrorCode ierr;
5219: PetscSectionGetChart(section, &pStart, &pEnd);
5220: DMPlexGetConeSize(dm, point, &numPoints);
5221: DMPlexGetCone(dm, point, &cone);
5222: DMPlexGetConeOrientation(dm, point, &coneO);
5223: VecGetArray(v, &array);
5224: for (p = 0, off = 0; p <= numPoints; ++p, off += dof) {
5225: const PetscInt cp = !p ? point : cone[p-1];
5226: const PetscInt o = !p ? 0 : coneO[p-1];
5228: if ((cp < pStart) || (cp >= pEnd)) {dof = 0; continue;}
5229: PetscSectionGetDof(section, cp, &dof);
5230: /* ADD_VALUES */
5231: {
5232: const PetscInt *cdofs; /* The indices of the constrained dofs on this point */
5233: PetscScalar *a;
5234: PetscInt cdof, coff, cind = 0, k;
5236: PetscSectionGetConstraintDof(section, cp, &cdof);
5237: PetscSectionGetOffset(section, cp, &coff);
5238: a = &array[coff];
5239: if (!cdof) {
5240: if (o >= 0) {
5241: for (k = 0; k < dof; ++k) {
5242: a[k] += values[off+k];
5243: }
5244: } else {
5245: for (k = 0; k < dof; ++k) {
5246: a[k] += values[off+dof-k-1];
5247: }
5248: }
5249: } else {
5250: PetscSectionGetConstraintIndices(section, cp, &cdofs);
5251: if (o >= 0) {
5252: for (k = 0; k < dof; ++k) {
5253: if ((cind < cdof) && (k == cdofs[cind])) {++cind; continue;}
5254: a[k] += values[off+k];
5255: }
5256: } else {
5257: for (k = 0; k < dof; ++k) {
5258: if ((cind < cdof) && (k == cdofs[cind])) {++cind; continue;}
5259: a[k] += values[off+dof-k-1];
5260: }
5261: }
5262: }
5263: }
5264: }
5265: VecRestoreArray(v, &array);
5266: return(0);
5267: }
5269: /*@C
5270: DMPlexVecSetClosure - Set an array of the values on the closure of 'point'
5272: Not collective
5274: Input Parameters:
5275: + dm - The DM
5276: . section - The section describing the layout in v, or NULL to use the default section
5277: . v - The local vector
5278: . point - The point in the DM
5279: . values - The array of values
5280: - mode - The insert mode. One of INSERT_ALL_VALUES, ADD_ALL_VALUES, INSERT_VALUES, ADD_VALUES, INSERT_BC_VALUES, and ADD_BC_VALUES,
5281: where INSERT_ALL_VALUES and ADD_ALL_VALUES also overwrite boundary conditions.
5283: Fortran Notes:
5284: This routine is only available in Fortran 90, and you must include petsc.h90 in your code.
5286: Level: intermediate
5288: .seealso DMPlexVecGetClosure(), DMPlexMatSetClosure()
5289: @*/
5290: PetscErrorCode DMPlexVecSetClosure(DM dm, PetscSection section, Vec v, PetscInt point, const PetscScalar values[], InsertMode mode)
5291: {
5292: PetscSection clSection;
5293: IS clPoints;
5294: PetscScalar *array;
5295: PetscInt *points = NULL;
5296: const PetscInt *clp, *clperm = NULL;
5297: PetscInt depth, numFields, numPoints, p, clsize;
5298: PetscErrorCode ierr;
5302: if (!section) {DMGetLocalSection(dm, §ion);}
5305: DMPlexGetDepth(dm, &depth);
5306: PetscSectionGetNumFields(section, &numFields);
5307: if (depth == 1 && numFields < 2 && mode == ADD_VALUES) {
5308: DMPlexVecSetClosure_Depth1_Static(dm, section, v, point, values, mode);
5309: return(0);
5310: }
5311: /* Get points */
5312: DMPlexGetCompressedClosure(dm,section,point,&numPoints,&points,&clSection,&clPoints,&clp);
5313: for (clsize=0,p=0; p<numPoints; p++) {
5314: PetscInt dof;
5315: PetscSectionGetDof(section, points[2*p], &dof);
5316: clsize += dof;
5317: }
5318: PetscSectionGetClosureInversePermutation_Internal(section, (PetscObject) dm, depth, clsize, &clperm);
5319: /* Get array */
5320: VecGetArray(v, &array);
5321: /* Get values */
5322: if (numFields > 0) {
5323: PetscInt offset = 0, f;
5324: for (f = 0; f < numFields; ++f) {
5325: const PetscInt **perms = NULL;
5326: const PetscScalar **flips = NULL;
5328: PetscSectionGetFieldPointSyms(section,f,numPoints,points,&perms,&flips);
5329: switch (mode) {
5330: case INSERT_VALUES:
5331: for (p = 0; p < numPoints; p++) {
5332: const PetscInt point = points[2*p];
5333: const PetscInt *perm = perms ? perms[p] : NULL;
5334: const PetscScalar *flip = flips ? flips[p] : NULL;
5335: updatePointFields_private(section, point, perm, flip, f, insert, PETSC_FALSE, clperm, values, &offset, array);
5336: } break;
5337: case INSERT_ALL_VALUES:
5338: for (p = 0; p < numPoints; p++) {
5339: const PetscInt point = points[2*p];
5340: const PetscInt *perm = perms ? perms[p] : NULL;
5341: const PetscScalar *flip = flips ? flips[p] : NULL;
5342: updatePointFields_private(section, point, perm, flip, f, insert, PETSC_TRUE, clperm, values, &offset, array);
5343: } break;
5344: case INSERT_BC_VALUES:
5345: for (p = 0; p < numPoints; p++) {
5346: const PetscInt point = points[2*p];
5347: const PetscInt *perm = perms ? perms[p] : NULL;
5348: const PetscScalar *flip = flips ? flips[p] : NULL;
5349: updatePointFieldsBC_private(section, point, perm, flip, f, -1, NULL, insert, clperm, values, &offset, array);
5350: } break;
5351: case ADD_VALUES:
5352: for (p = 0; p < numPoints; p++) {
5353: const PetscInt point = points[2*p];
5354: const PetscInt *perm = perms ? perms[p] : NULL;
5355: const PetscScalar *flip = flips ? flips[p] : NULL;
5356: updatePointFields_private(section, point, perm, flip, f, add, PETSC_FALSE, clperm, values, &offset, array);
5357: } break;
5358: case ADD_ALL_VALUES:
5359: for (p = 0; p < numPoints; p++) {
5360: const PetscInt point = points[2*p];
5361: const PetscInt *perm = perms ? perms[p] : NULL;
5362: const PetscScalar *flip = flips ? flips[p] : NULL;
5363: updatePointFields_private(section, point, perm, flip, f, add, PETSC_TRUE, clperm, values, &offset, array);
5364: } break;
5365: case ADD_BC_VALUES:
5366: for (p = 0; p < numPoints; p++) {
5367: const PetscInt point = points[2*p];
5368: const PetscInt *perm = perms ? perms[p] : NULL;
5369: const PetscScalar *flip = flips ? flips[p] : NULL;
5370: updatePointFieldsBC_private(section, point, perm, flip, f, -1, NULL, add, clperm, values, &offset, array);
5371: } break;
5372: default:
5373: SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_OUTOFRANGE, "Invalid insert mode %d", mode);
5374: }
5375: PetscSectionRestoreFieldPointSyms(section,f,numPoints,points,&perms,&flips);
5376: }
5377: } else {
5378: PetscInt dof, off;
5379: const PetscInt **perms = NULL;
5380: const PetscScalar **flips = NULL;
5382: PetscSectionGetPointSyms(section,numPoints,points,&perms,&flips);
5383: switch (mode) {
5384: case INSERT_VALUES:
5385: for (p = 0, off = 0; p < numPoints; p++, off += dof) {
5386: const PetscInt point = points[2*p];
5387: const PetscInt *perm = perms ? perms[p] : NULL;
5388: const PetscScalar *flip = flips ? flips[p] : NULL;
5389: PetscSectionGetDof(section, point, &dof);
5390: updatePoint_private(section, point, dof, insert, PETSC_FALSE, perm, flip, clperm, values, off, array);
5391: } break;
5392: case INSERT_ALL_VALUES:
5393: for (p = 0, off = 0; p < numPoints; p++, off += dof) {
5394: const PetscInt point = points[2*p];
5395: const PetscInt *perm = perms ? perms[p] : NULL;
5396: const PetscScalar *flip = flips ? flips[p] : NULL;
5397: PetscSectionGetDof(section, point, &dof);
5398: updatePoint_private(section, point, dof, insert, PETSC_TRUE, perm, flip, clperm, values, off, array);
5399: } break;
5400: case INSERT_BC_VALUES:
5401: for (p = 0, off = 0; p < numPoints; p++, off += dof) {
5402: const PetscInt point = points[2*p];
5403: const PetscInt *perm = perms ? perms[p] : NULL;
5404: const PetscScalar *flip = flips ? flips[p] : NULL;
5405: PetscSectionGetDof(section, point, &dof);
5406: updatePointBC_private(section, point, dof, insert, perm, flip, clperm, values, off, array);
5407: } break;
5408: case ADD_VALUES:
5409: for (p = 0, off = 0; p < numPoints; p++, off += dof) {
5410: const PetscInt point = points[2*p];
5411: const PetscInt *perm = perms ? perms[p] : NULL;
5412: const PetscScalar *flip = flips ? flips[p] : NULL;
5413: PetscSectionGetDof(section, point, &dof);
5414: updatePoint_private(section, point, dof, add, PETSC_FALSE, perm, flip, clperm, values, off, array);
5415: } break;
5416: case ADD_ALL_VALUES:
5417: for (p = 0, off = 0; p < numPoints; p++, off += dof) {
5418: const PetscInt point = points[2*p];
5419: const PetscInt *perm = perms ? perms[p] : NULL;
5420: const PetscScalar *flip = flips ? flips[p] : NULL;
5421: PetscSectionGetDof(section, point, &dof);
5422: updatePoint_private(section, point, dof, add, PETSC_TRUE, perm, flip, clperm, values, off, array);
5423: } break;
5424: case ADD_BC_VALUES:
5425: for (p = 0, off = 0; p < numPoints; p++, off += dof) {
5426: const PetscInt point = points[2*p];
5427: const PetscInt *perm = perms ? perms[p] : NULL;
5428: const PetscScalar *flip = flips ? flips[p] : NULL;
5429: PetscSectionGetDof(section, point, &dof);
5430: updatePointBC_private(section, point, dof, add, perm, flip, clperm, values, off, array);
5431: } break;
5432: default:
5433: SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_OUTOFRANGE, "Invalid insert mode %d", mode);
5434: }
5435: PetscSectionRestorePointSyms(section,numPoints,points,&perms,&flips);
5436: }
5437: /* Cleanup points */
5438: DMPlexRestoreCompressedClosure(dm,section,point,&numPoints,&points,&clSection,&clPoints,&clp);
5439: /* Cleanup array */
5440: VecRestoreArray(v, &array);
5441: return(0);
5442: }
5444: /* Check whether the given point is in the label. If not, update the offset to skip this point */
5445: PETSC_STATIC_INLINE PetscErrorCode CheckPoint_Private(DMLabel label, PetscInt labelId, PetscSection section, PetscInt point, PetscInt f, PetscInt *offset)
5446: {
5448: if (label) {
5449: PetscInt val, fdof;
5452: /* There is a problem with this:
5453: Suppose we have two label values, defining surfaces, interecting along a line in 3D. When we add cells to the label, the cells that
5454: touch both surfaces must pick a label value. Thus we miss setting values for the surface with that other value intersecting that cell.
5455: Thus I am only going to check val != -1, not val != labelId
5456: */
5457: DMLabelGetValue(label, point, &val);
5458: if (val < 0) {
5459: PetscSectionGetFieldDof(section, point, f, &fdof);
5460: *offset += fdof;
5461: PetscFunctionReturn(1);
5462: }
5463: }
5464: return(0);
5465: }
5467: /* Unlike DMPlexVecSetClosure(), this uses plex-native closure permutation, not a user-specified permutation such as DMPlexSetClosurePermutationTensor(). */
5468: PetscErrorCode DMPlexVecSetFieldClosure_Internal(DM dm, PetscSection section, Vec v, PetscBool fieldActive[], PetscInt point, PetscInt Ncc, const PetscInt comps[], DMLabel label, PetscInt labelId, const PetscScalar values[], InsertMode mode)
5469: {
5470: PetscSection clSection;
5471: IS clPoints;
5472: PetscScalar *array;
5473: PetscInt *points = NULL;
5474: const PetscInt *clp;
5475: PetscInt numFields, numPoints, p;
5476: PetscInt offset = 0, f;
5477: PetscErrorCode ierr;
5481: if (!section) {DMGetLocalSection(dm, §ion);}
5484: PetscSectionGetNumFields(section, &numFields);
5485: /* Get points */
5486: DMPlexGetCompressedClosure(dm,section,point,&numPoints,&points,&clSection,&clPoints,&clp);
5487: /* Get array */
5488: VecGetArray(v, &array);
5489: /* Get values */
5490: for (f = 0; f < numFields; ++f) {
5491: const PetscInt **perms = NULL;
5492: const PetscScalar **flips = NULL;
5494: if (!fieldActive[f]) {
5495: for (p = 0; p < numPoints*2; p += 2) {
5496: PetscInt fdof;
5497: PetscSectionGetFieldDof(section, points[p], f, &fdof);
5498: offset += fdof;
5499: }
5500: continue;
5501: }
5502: PetscSectionGetFieldPointSyms(section,f,numPoints,points,&perms,&flips);
5503: switch (mode) {
5504: case INSERT_VALUES:
5505: for (p = 0; p < numPoints; p++) {
5506: const PetscInt point = points[2*p];
5507: const PetscInt *perm = perms ? perms[p] : NULL;
5508: const PetscScalar *flip = flips ? flips[p] : NULL;
5509: CheckPoint_Private(label, labelId, section, point, f, &offset); if (ierr) continue;
5510: updatePointFields_private(section, point, perm, flip, f, insert, PETSC_FALSE, NULL, values, &offset, array);
5511: } break;
5512: case INSERT_ALL_VALUES:
5513: for (p = 0; p < numPoints; p++) {
5514: const PetscInt point = points[2*p];
5515: const PetscInt *perm = perms ? perms[p] : NULL;
5516: const PetscScalar *flip = flips ? flips[p] : NULL;
5517: CheckPoint_Private(label, labelId, section, point, f, &offset); if (ierr) continue;
5518: updatePointFields_private(section, point, perm, flip, f, insert, PETSC_TRUE, NULL, values, &offset, array);
5519: } break;
5520: case INSERT_BC_VALUES:
5521: for (p = 0; p < numPoints; p++) {
5522: const PetscInt point = points[2*p];
5523: const PetscInt *perm = perms ? perms[p] : NULL;
5524: const PetscScalar *flip = flips ? flips[p] : NULL;
5525: CheckPoint_Private(label, labelId, section, point, f, &offset); if (ierr) continue;
5526: updatePointFieldsBC_private(section, point, perm, flip, f, Ncc, comps, insert, NULL, values, &offset, array);
5527: } break;
5528: case ADD_VALUES:
5529: for (p = 0; p < numPoints; p++) {
5530: const PetscInt point = points[2*p];
5531: const PetscInt *perm = perms ? perms[p] : NULL;
5532: const PetscScalar *flip = flips ? flips[p] : NULL;
5533: CheckPoint_Private(label, labelId, section, point, f, &offset); if (ierr) continue;
5534: updatePointFields_private(section, point, perm, flip, f, add, PETSC_FALSE, NULL, values, &offset, array);
5535: } break;
5536: case ADD_ALL_VALUES:
5537: for (p = 0; p < numPoints; p++) {
5538: const PetscInt point = points[2*p];
5539: const PetscInt *perm = perms ? perms[p] : NULL;
5540: const PetscScalar *flip = flips ? flips[p] : NULL;
5541: CheckPoint_Private(label, labelId, section, point, f, &offset); if (ierr) continue;
5542: updatePointFields_private(section, point, perm, flip, f, add, PETSC_TRUE, NULL, values, &offset, array);
5543: } break;
5544: default:
5545: SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_OUTOFRANGE, "Invalid insert mode %d", mode);
5546: }
5547: PetscSectionRestoreFieldPointSyms(section,f,numPoints,points,&perms,&flips);
5548: }
5549: /* Cleanup points */
5550: DMPlexRestoreCompressedClosure(dm,section,point,&numPoints,&points,&clSection,&clPoints,&clp);
5551: /* Cleanup array */
5552: VecRestoreArray(v, &array);
5553: return(0);
5554: }
5556: static PetscErrorCode DMPlexPrintMatSetValues(PetscViewer viewer, Mat A, PetscInt point, PetscInt numRIndices, const PetscInt rindices[], PetscInt numCIndices, const PetscInt cindices[], const PetscScalar values[])
5557: {
5558: PetscMPIInt rank;
5559: PetscInt i, j;
5563: MPI_Comm_rank(PetscObjectComm((PetscObject)A), &rank);
5564: PetscViewerASCIIPrintf(viewer, "[%d]mat for point %D\n", rank, point);
5565: for (i = 0; i < numRIndices; i++) {PetscViewerASCIIPrintf(viewer, "[%d]mat row indices[%D] = %D\n", rank, i, rindices[i]);}
5566: for (i = 0; i < numCIndices; i++) {PetscViewerASCIIPrintf(viewer, "[%d]mat col indices[%D] = %D\n", rank, i, cindices[i]);}
5567: numCIndices = numCIndices ? numCIndices : numRIndices;
5568: if (!values) return(0);
5569: for (i = 0; i < numRIndices; i++) {
5570: PetscViewerASCIIPrintf(viewer, "[%d]", rank);
5571: for (j = 0; j < numCIndices; j++) {
5572: #if defined(PETSC_USE_COMPLEX)
5573: PetscViewerASCIIPrintf(viewer, " (%g,%g)", (double)PetscRealPart(values[i*numCIndices+j]), (double)PetscImaginaryPart(values[i*numCIndices+j]));
5574: #else
5575: PetscViewerASCIIPrintf(viewer, " %g", (double)values[i*numCIndices+j]);
5576: #endif
5577: }
5578: PetscViewerASCIIPrintf(viewer, "\n");
5579: }
5580: return(0);
5581: }
5583: /*
5584: DMPlexGetIndicesPoint_Internal - Add the indices for dofs on a point to an index array
5586: Input Parameters:
5587: + section - The section for this data layout
5588: . islocal - Is the section (and thus indices being requested) local or global?
5589: . point - The point contributing dofs with these indices
5590: . off - The global offset of this point
5591: . loff - The local offset of each field
5592: . setBC - The flag determining whether to include indices of bounsary values
5593: . perm - A permutation of the dofs on this point, or NULL
5594: - indperm - A permutation of the entire indices array, or NULL
5596: Output Parameter:
5597: . indices - Indices for dofs on this point
5599: Level: developer
5601: Note: The indices could be local or global, depending on the value of 'off'.
5602: */
5603: PetscErrorCode DMPlexGetIndicesPoint_Internal(PetscSection section, PetscBool islocal,PetscInt point, PetscInt off, PetscInt *loff, PetscBool setBC, const PetscInt perm[], const PetscInt indperm[], PetscInt indices[])
5604: {
5605: PetscInt dof; /* The number of unknowns on this point */
5606: PetscInt cdof; /* The number of constraints on this point */
5607: const PetscInt *cdofs; /* The indices of the constrained dofs on this point */
5608: PetscInt cind = 0, k;
5609: PetscErrorCode ierr;
5612: if (!islocal && setBC) SETERRQ(PetscObjectComm((PetscObject)section),PETSC_ERR_ARG_INCOMP,"setBC incompatible with global indices; use a local section or disable setBC");
5613: PetscSectionGetDof(section, point, &dof);
5614: PetscSectionGetConstraintDof(section, point, &cdof);
5615: if (!cdof || setBC) {
5616: for (k = 0; k < dof; ++k) {
5617: const PetscInt preind = perm ? *loff+perm[k] : *loff+k;
5618: const PetscInt ind = indperm ? indperm[preind] : preind;
5620: indices[ind] = off + k;
5621: }
5622: } else {
5623: PetscSectionGetConstraintIndices(section, point, &cdofs);
5624: for (k = 0; k < dof; ++k) {
5625: const PetscInt preind = perm ? *loff+perm[k] : *loff+k;
5626: const PetscInt ind = indperm ? indperm[preind] : preind;
5628: if ((cind < cdof) && (k == cdofs[cind])) {
5629: /* Insert check for returning constrained indices */
5630: indices[ind] = -(off+k+1);
5631: ++cind;
5632: } else {
5633: indices[ind] = off + k - (islocal ? 0 : cind);
5634: }
5635: }
5636: }
5637: *loff += dof;
5638: return(0);
5639: }
5641: /*
5642: DMPlexGetIndicesPointFields_Internal - gets section indices for a point in its canonical ordering.
5644: Input Parameters:
5645: + section - a section (global or local)
5646: - islocal - PETSC_TRUE if requesting local indices (i.e., section is local); PETSC_FALSE for global
5647: . point - point within section
5648: . off - The offset of this point in the (local or global) indexed space - should match islocal and (usually) the section
5649: . foffs - array of length numFields containing the offset in canonical point ordering (the location in indices) of each field
5650: . setBC - identify constrained (boundary condition) points via involution.
5651: . perms - perms[f][permsoff][:] is a permutation of dofs within each field
5652: . permsoff - offset
5653: - indperm - index permutation
5655: Output Parameter:
5656: . foffs - each entry is incremented by the number of (unconstrained if setBC=FALSE) dofs in that field
5657: . indices - array to hold indices (as defined by section) of each dof associated with point
5659: Notes:
5660: If section is local and setBC=true, there is no distinction between constrained and unconstrained dofs.
5661: If section is local and setBC=false, the indices for constrained points are the involution -(i+1) of their position
5662: in the local vector.
5664: If section is global and setBC=false, the indices for constrained points are negative (and their value is not
5665: significant). It is invalid to call with a global section and setBC=true.
5667: Developer Note:
5668: The section is only used for field layout, so islocal is technically a statement about the offset (off). At some point
5669: in the future, global sections may have fields set, in which case we could pass the global section and obtain the
5670: offset could be obtained from the section instead of passing it explicitly as we do now.
5672: Example:
5673: Suppose a point contains one field with three components, and for which the unconstrained indices are {10, 11, 12}.
5674: When the middle component is constrained, we get the array {10, -12, 12} for (islocal=TRUE, setBC=FALSE).
5675: Note that -12 is the involution of 11, so the user can involute negative indices to recover local indices.
5676: The global vector does not store constrained dofs, so when this function returns global indices, say {110, -112, 111}, the value of -112 is an arbitrary flag that should not be interpreted beyond its sign.
5678: Level: developer
5679: */
5680: PetscErrorCode DMPlexGetIndicesPointFields_Internal(PetscSection section, PetscBool islocal, PetscInt point, PetscInt off, PetscInt foffs[], PetscBool setBC, const PetscInt ***perms, PetscInt permsoff, const PetscInt indperm[], PetscInt indices[])
5681: {
5682: PetscInt numFields, foff, f;
5686: if (!islocal && setBC) SETERRQ(PetscObjectComm((PetscObject)section),PETSC_ERR_ARG_INCOMP,"setBC incompatible with global indices; use a local section or disable setBC");
5687: PetscSectionGetNumFields(section, &numFields);
5688: for (f = 0, foff = 0; f < numFields; ++f) {
5689: PetscInt fdof, cfdof;
5690: const PetscInt *fcdofs; /* The indices of the constrained dofs for field f on this point */
5691: PetscInt cind = 0, b;
5692: const PetscInt *perm = (perms && perms[f]) ? perms[f][permsoff] : NULL;
5694: PetscSectionGetFieldDof(section, point, f, &fdof);
5695: PetscSectionGetFieldConstraintDof(section, point, f, &cfdof);
5696: if (!cfdof || setBC) {
5697: for (b = 0; b < fdof; ++b) {
5698: const PetscInt preind = perm ? foffs[f]+perm[b] : foffs[f]+b;
5699: const PetscInt ind = indperm ? indperm[preind] : preind;
5701: indices[ind] = off+foff+b;
5702: }
5703: } else {
5704: PetscSectionGetFieldConstraintIndices(section, point, f, &fcdofs);
5705: for (b = 0; b < fdof; ++b) {
5706: const PetscInt preind = perm ? foffs[f]+perm[b] : foffs[f]+b;
5707: const PetscInt ind = indperm ? indperm[preind] : preind;
5709: if ((cind < cfdof) && (b == fcdofs[cind])) {
5710: indices[ind] = -(off+foff+b+1);
5711: ++cind;
5712: } else {
5713: indices[ind] = off + foff + b - (islocal ? 0 : cind);
5714: }
5715: }
5716: }
5717: foff += (setBC || islocal ? fdof : (fdof - cfdof));
5718: foffs[f] += fdof;
5719: }
5720: return(0);
5721: }
5723: /*
5724: This version believes the globalSection offsets for each field, rather than just the point offset
5726: . foffs - The offset into 'indices' for each field, since it is segregated by field
5728: Notes:
5729: The semantics of this function relate to that of setBC=FALSE in DMPlexGetIndicesPointFields_Internal.
5730: Since this function uses global indices, setBC=TRUE would be invalid, so no such argument exists.
5731: */
5732: static PetscErrorCode DMPlexGetIndicesPointFieldsSplit_Internal(PetscSection section, PetscSection globalSection, PetscInt point, PetscInt foffs[], const PetscInt ***perms, PetscInt permsoff, const PetscInt indperm[], PetscInt indices[])
5733: {
5734: PetscInt numFields, foff, f;
5738: PetscSectionGetNumFields(section, &numFields);
5739: for (f = 0; f < numFields; ++f) {
5740: PetscInt fdof, cfdof;
5741: const PetscInt *fcdofs; /* The indices of the constrained dofs for field f on this point */
5742: PetscInt cind = 0, b;
5743: const PetscInt *perm = (perms && perms[f]) ? perms[f][permsoff] : NULL;
5745: PetscSectionGetFieldDof(section, point, f, &fdof);
5746: PetscSectionGetFieldConstraintDof(section, point, f, &cfdof);
5747: PetscSectionGetFieldOffset(globalSection, point, f, &foff);
5748: if (!cfdof) {
5749: for (b = 0; b < fdof; ++b) {
5750: const PetscInt preind = perm ? foffs[f]+perm[b] : foffs[f]+b;
5751: const PetscInt ind = indperm ? indperm[preind] : preind;
5753: indices[ind] = foff+b;
5754: }
5755: } else {
5756: PetscSectionGetFieldConstraintIndices(section, point, f, &fcdofs);
5757: for (b = 0; b < fdof; ++b) {
5758: const PetscInt preind = perm ? foffs[f]+perm[b] : foffs[f]+b;
5759: const PetscInt ind = indperm ? indperm[preind] : preind;
5761: if ((cind < cfdof) && (b == fcdofs[cind])) {
5762: indices[ind] = -(foff+b+1);
5763: ++cind;
5764: } else {
5765: indices[ind] = foff+b-cind;
5766: }
5767: }
5768: }
5769: foffs[f] += fdof;
5770: }
5771: return(0);
5772: }
5774: PetscErrorCode DMPlexAnchorsModifyMat(DM dm, PetscSection section, PetscInt numPoints, PetscInt numIndices, const PetscInt points[], const PetscInt ***perms, const PetscScalar values[], PetscInt *outNumPoints, PetscInt *outNumIndices, PetscInt *outPoints[], PetscScalar *outValues[], PetscInt offsets[], PetscBool multiplyLeft)
5775: {
5776: Mat cMat;
5777: PetscSection aSec, cSec;
5778: IS aIS;
5779: PetscInt aStart = -1, aEnd = -1;
5780: const PetscInt *anchors;
5781: PetscInt numFields, f, p, q, newP = 0;
5782: PetscInt newNumPoints = 0, newNumIndices = 0;
5783: PetscInt *newPoints, *indices, *newIndices;
5784: PetscInt maxAnchor, maxDof;
5785: PetscInt newOffsets[32];
5786: PetscInt *pointMatOffsets[32];
5787: PetscInt *newPointOffsets[32];
5788: PetscScalar *pointMat[32];
5789: PetscScalar *newValues=NULL,*tmpValues;
5790: PetscBool anyConstrained = PETSC_FALSE;
5791: PetscErrorCode ierr;
5796: PetscSectionGetNumFields(section, &numFields);
5798: DMPlexGetAnchors(dm,&aSec,&aIS);
5799: /* if there are point-to-point constraints */
5800: if (aSec) {
5801: PetscArrayzero(newOffsets, 32);
5802: ISGetIndices(aIS,&anchors);
5803: PetscSectionGetChart(aSec,&aStart,&aEnd);
5804: /* figure out how many points are going to be in the new element matrix
5805: * (we allow double counting, because it's all just going to be summed
5806: * into the global matrix anyway) */
5807: for (p = 0; p < 2*numPoints; p+=2) {
5808: PetscInt b = points[p];
5809: PetscInt bDof = 0, bSecDof;
5811: PetscSectionGetDof(section,b,&bSecDof);
5812: if (!bSecDof) {
5813: continue;
5814: }
5815: if (b >= aStart && b < aEnd) {
5816: PetscSectionGetDof(aSec,b,&bDof);
5817: }
5818: if (bDof) {
5819: /* this point is constrained */
5820: /* it is going to be replaced by its anchors */
5821: PetscInt bOff, q;
5823: anyConstrained = PETSC_TRUE;
5824: newNumPoints += bDof;
5825: PetscSectionGetOffset(aSec,b,&bOff);
5826: for (q = 0; q < bDof; q++) {
5827: PetscInt a = anchors[bOff + q];
5828: PetscInt aDof;
5830: PetscSectionGetDof(section,a,&aDof);
5831: newNumIndices += aDof;
5832: for (f = 0; f < numFields; ++f) {
5833: PetscInt fDof;
5835: PetscSectionGetFieldDof(section, a, f, &fDof);
5836: newOffsets[f+1] += fDof;
5837: }
5838: }
5839: }
5840: else {
5841: /* this point is not constrained */
5842: newNumPoints++;
5843: newNumIndices += bSecDof;
5844: for (f = 0; f < numFields; ++f) {
5845: PetscInt fDof;
5847: PetscSectionGetFieldDof(section, b, f, &fDof);
5848: newOffsets[f+1] += fDof;
5849: }
5850: }
5851: }
5852: }
5853: if (!anyConstrained) {
5854: if (outNumPoints) *outNumPoints = 0;
5855: if (outNumIndices) *outNumIndices = 0;
5856: if (outPoints) *outPoints = NULL;
5857: if (outValues) *outValues = NULL;
5858: if (aSec) {ISRestoreIndices(aIS,&anchors);}
5859: return(0);
5860: }
5862: if (outNumPoints) *outNumPoints = newNumPoints;
5863: if (outNumIndices) *outNumIndices = newNumIndices;
5865: for (f = 0; f < numFields; ++f) newOffsets[f+1] += newOffsets[f];
5867: if (!outPoints && !outValues) {
5868: if (offsets) {
5869: for (f = 0; f <= numFields; f++) {
5870: offsets[f] = newOffsets[f];
5871: }
5872: }
5873: if (aSec) {ISRestoreIndices(aIS,&anchors);}
5874: return(0);
5875: }
5877: if (numFields && newOffsets[numFields] != newNumIndices) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Invalid size for closure %D should be %D", newOffsets[numFields], newNumIndices);
5879: DMGetDefaultConstraints(dm, &cSec, &cMat);
5881: /* workspaces */
5882: if (numFields) {
5883: for (f = 0; f < numFields; f++) {
5884: DMGetWorkArray(dm,numPoints+1,MPIU_INT,&pointMatOffsets[f]);
5885: DMGetWorkArray(dm,numPoints+1,MPIU_INT,&newPointOffsets[f]);
5886: }
5887: }
5888: else {
5889: DMGetWorkArray(dm,numPoints+1,MPIU_INT,&pointMatOffsets[0]);
5890: DMGetWorkArray(dm,numPoints,MPIU_INT,&newPointOffsets[0]);
5891: }
5893: /* get workspaces for the point-to-point matrices */
5894: if (numFields) {
5895: PetscInt totalOffset, totalMatOffset;
5897: for (p = 0; p < numPoints; p++) {
5898: PetscInt b = points[2*p];
5899: PetscInt bDof = 0, bSecDof;
5901: PetscSectionGetDof(section,b,&bSecDof);
5902: if (!bSecDof) {
5903: for (f = 0; f < numFields; f++) {
5904: newPointOffsets[f][p + 1] = 0;
5905: pointMatOffsets[f][p + 1] = 0;
5906: }
5907: continue;
5908: }
5909: if (b >= aStart && b < aEnd) {
5910: PetscSectionGetDof(aSec, b, &bDof);
5911: }
5912: if (bDof) {
5913: for (f = 0; f < numFields; f++) {
5914: PetscInt fDof, q, bOff, allFDof = 0;
5916: PetscSectionGetFieldDof(section, b, f, &fDof);
5917: PetscSectionGetOffset(aSec, b, &bOff);
5918: for (q = 0; q < bDof; q++) {
5919: PetscInt a = anchors[bOff + q];
5920: PetscInt aFDof;
5922: PetscSectionGetFieldDof(section, a, f, &aFDof);
5923: allFDof += aFDof;
5924: }
5925: newPointOffsets[f][p+1] = allFDof;
5926: pointMatOffsets[f][p+1] = fDof * allFDof;
5927: }
5928: }
5929: else {
5930: for (f = 0; f < numFields; f++) {
5931: PetscInt fDof;
5933: PetscSectionGetFieldDof(section, b, f, &fDof);
5934: newPointOffsets[f][p+1] = fDof;
5935: pointMatOffsets[f][p+1] = 0;
5936: }
5937: }
5938: }
5939: for (f = 0, totalOffset = 0, totalMatOffset = 0; f < numFields; f++) {
5940: newPointOffsets[f][0] = totalOffset;
5941: pointMatOffsets[f][0] = totalMatOffset;
5942: for (p = 0; p < numPoints; p++) {
5943: newPointOffsets[f][p+1] += newPointOffsets[f][p];
5944: pointMatOffsets[f][p+1] += pointMatOffsets[f][p];
5945: }
5946: totalOffset = newPointOffsets[f][numPoints];
5947: totalMatOffset = pointMatOffsets[f][numPoints];
5948: DMGetWorkArray(dm,pointMatOffsets[f][numPoints],MPIU_SCALAR,&pointMat[f]);
5949: }
5950: }
5951: else {
5952: for (p = 0; p < numPoints; p++) {
5953: PetscInt b = points[2*p];
5954: PetscInt bDof = 0, bSecDof;
5956: PetscSectionGetDof(section,b,&bSecDof);
5957: if (!bSecDof) {
5958: newPointOffsets[0][p + 1] = 0;
5959: pointMatOffsets[0][p + 1] = 0;
5960: continue;
5961: }
5962: if (b >= aStart && b < aEnd) {
5963: PetscSectionGetDof(aSec, b, &bDof);
5964: }
5965: if (bDof) {
5966: PetscInt bOff, q, allDof = 0;
5968: PetscSectionGetOffset(aSec, b, &bOff);
5969: for (q = 0; q < bDof; q++) {
5970: PetscInt a = anchors[bOff + q], aDof;
5972: PetscSectionGetDof(section, a, &aDof);
5973: allDof += aDof;
5974: }
5975: newPointOffsets[0][p+1] = allDof;
5976: pointMatOffsets[0][p+1] = bSecDof * allDof;
5977: }
5978: else {
5979: newPointOffsets[0][p+1] = bSecDof;
5980: pointMatOffsets[0][p+1] = 0;
5981: }
5982: }
5983: newPointOffsets[0][0] = 0;
5984: pointMatOffsets[0][0] = 0;
5985: for (p = 0; p < numPoints; p++) {
5986: newPointOffsets[0][p+1] += newPointOffsets[0][p];
5987: pointMatOffsets[0][p+1] += pointMatOffsets[0][p];
5988: }
5989: DMGetWorkArray(dm,pointMatOffsets[0][numPoints],MPIU_SCALAR,&pointMat[0]);
5990: }
5992: /* output arrays */
5993: DMGetWorkArray(dm,2*newNumPoints,MPIU_INT,&newPoints);
5995: /* get the point-to-point matrices; construct newPoints */
5996: PetscSectionGetMaxDof(aSec, &maxAnchor);
5997: PetscSectionGetMaxDof(section, &maxDof);
5998: DMGetWorkArray(dm,maxDof,MPIU_INT,&indices);
5999: DMGetWorkArray(dm,maxAnchor*maxDof,MPIU_INT,&newIndices);
6000: if (numFields) {
6001: for (p = 0, newP = 0; p < numPoints; p++) {
6002: PetscInt b = points[2*p];
6003: PetscInt o = points[2*p+1];
6004: PetscInt bDof = 0, bSecDof;
6006: PetscSectionGetDof(section, b, &bSecDof);
6007: if (!bSecDof) {
6008: continue;
6009: }
6010: if (b >= aStart && b < aEnd) {
6011: PetscSectionGetDof(aSec, b, &bDof);
6012: }
6013: if (bDof) {
6014: PetscInt fStart[32], fEnd[32], fAnchorStart[32], fAnchorEnd[32], bOff, q;
6016: fStart[0] = 0;
6017: fEnd[0] = 0;
6018: for (f = 0; f < numFields; f++) {
6019: PetscInt fDof;
6021: PetscSectionGetFieldDof(cSec, b, f, &fDof);
6022: fStart[f+1] = fStart[f] + fDof;
6023: fEnd[f+1] = fStart[f+1];
6024: }
6025: PetscSectionGetOffset(cSec, b, &bOff);
6026: DMPlexGetIndicesPointFields_Internal(cSec, PETSC_TRUE, b, bOff, fEnd, PETSC_TRUE, perms, p, NULL, indices);
6028: fAnchorStart[0] = 0;
6029: fAnchorEnd[0] = 0;
6030: for (f = 0; f < numFields; f++) {
6031: PetscInt fDof = newPointOffsets[f][p + 1] - newPointOffsets[f][p];
6033: fAnchorStart[f+1] = fAnchorStart[f] + fDof;
6034: fAnchorEnd[f+1] = fAnchorStart[f + 1];
6035: }
6036: PetscSectionGetOffset(aSec, b, &bOff);
6037: for (q = 0; q < bDof; q++) {
6038: PetscInt a = anchors[bOff + q], aOff;
6040: /* we take the orientation of ap into account in the order that we constructed the indices above: the newly added points have no orientation */
6041: newPoints[2*(newP + q)] = a;
6042: newPoints[2*(newP + q) + 1] = 0;
6043: PetscSectionGetOffset(section, a, &aOff);
6044: DMPlexGetIndicesPointFields_Internal(section, PETSC_TRUE, a, aOff, fAnchorEnd, PETSC_TRUE, NULL, -1, NULL, newIndices);
6045: }
6046: newP += bDof;
6048: if (outValues) {
6049: /* get the point-to-point submatrix */
6050: for (f = 0; f < numFields; f++) {
6051: MatGetValues(cMat,fEnd[f]-fStart[f],indices + fStart[f],fAnchorEnd[f] - fAnchorStart[f],newIndices + fAnchorStart[f],pointMat[f] + pointMatOffsets[f][p]);
6052: }
6053: }
6054: }
6055: else {
6056: newPoints[2 * newP] = b;
6057: newPoints[2 * newP + 1] = o;
6058: newP++;
6059: }
6060: }
6061: } else {
6062: for (p = 0; p < numPoints; p++) {
6063: PetscInt b = points[2*p];
6064: PetscInt o = points[2*p+1];
6065: PetscInt bDof = 0, bSecDof;
6067: PetscSectionGetDof(section, b, &bSecDof);
6068: if (!bSecDof) {
6069: continue;
6070: }
6071: if (b >= aStart && b < aEnd) {
6072: PetscSectionGetDof(aSec, b, &bDof);
6073: }
6074: if (bDof) {
6075: PetscInt bEnd = 0, bAnchorEnd = 0, bOff;
6077: PetscSectionGetOffset(cSec, b, &bOff);
6078: DMPlexGetIndicesPoint_Internal(cSec, PETSC_TRUE, b, bOff, &bEnd, PETSC_TRUE, (perms && perms[0]) ? perms[0][p] : NULL, NULL, indices);
6080: PetscSectionGetOffset (aSec, b, &bOff);
6081: for (q = 0; q < bDof; q++) {
6082: PetscInt a = anchors[bOff + q], aOff;
6084: /* we take the orientation of ap into account in the order that we constructed the indices above: the newly added points have no orientation */
6086: newPoints[2*(newP + q)] = a;
6087: newPoints[2*(newP + q) + 1] = 0;
6088: PetscSectionGetOffset(section, a, &aOff);
6089: DMPlexGetIndicesPoint_Internal(section, PETSC_TRUE, a, aOff, &bAnchorEnd, PETSC_TRUE, NULL, NULL, newIndices);
6090: }
6091: newP += bDof;
6093: /* get the point-to-point submatrix */
6094: if (outValues) {
6095: MatGetValues(cMat,bEnd,indices,bAnchorEnd,newIndices,pointMat[0] + pointMatOffsets[0][p]);
6096: }
6097: }
6098: else {
6099: newPoints[2 * newP] = b;
6100: newPoints[2 * newP + 1] = o;
6101: newP++;
6102: }
6103: }
6104: }
6106: if (outValues) {
6107: DMGetWorkArray(dm,newNumIndices*numIndices,MPIU_SCALAR,&tmpValues);
6108: PetscArrayzero(tmpValues,newNumIndices*numIndices);
6109: /* multiply constraints on the right */
6110: if (numFields) {
6111: for (f = 0; f < numFields; f++) {
6112: PetscInt oldOff = offsets[f];
6114: for (p = 0; p < numPoints; p++) {
6115: PetscInt cStart = newPointOffsets[f][p];
6116: PetscInt b = points[2 * p];
6117: PetscInt c, r, k;
6118: PetscInt dof;
6120: PetscSectionGetFieldDof(section,b,f,&dof);
6121: if (!dof) {
6122: continue;
6123: }
6124: if (pointMatOffsets[f][p] < pointMatOffsets[f][p + 1]) {
6125: PetscInt nCols = newPointOffsets[f][p+1]-cStart;
6126: const PetscScalar *mat = pointMat[f] + pointMatOffsets[f][p];
6128: for (r = 0; r < numIndices; r++) {
6129: for (c = 0; c < nCols; c++) {
6130: for (k = 0; k < dof; k++) {
6131: tmpValues[r * newNumIndices + cStart + c] += values[r * numIndices + oldOff + k] * mat[k * nCols + c];
6132: }
6133: }
6134: }
6135: }
6136: else {
6137: /* copy this column as is */
6138: for (r = 0; r < numIndices; r++) {
6139: for (c = 0; c < dof; c++) {
6140: tmpValues[r * newNumIndices + cStart + c] = values[r * numIndices + oldOff + c];
6141: }
6142: }
6143: }
6144: oldOff += dof;
6145: }
6146: }
6147: }
6148: else {
6149: PetscInt oldOff = 0;
6150: for (p = 0; p < numPoints; p++) {
6151: PetscInt cStart = newPointOffsets[0][p];
6152: PetscInt b = points[2 * p];
6153: PetscInt c, r, k;
6154: PetscInt dof;
6156: PetscSectionGetDof(section,b,&dof);
6157: if (!dof) {
6158: continue;
6159: }
6160: if (pointMatOffsets[0][p] < pointMatOffsets[0][p + 1]) {
6161: PetscInt nCols = newPointOffsets[0][p+1]-cStart;
6162: const PetscScalar *mat = pointMat[0] + pointMatOffsets[0][p];
6164: for (r = 0; r < numIndices; r++) {
6165: for (c = 0; c < nCols; c++) {
6166: for (k = 0; k < dof; k++) {
6167: tmpValues[r * newNumIndices + cStart + c] += mat[k * nCols + c] * values[r * numIndices + oldOff + k];
6168: }
6169: }
6170: }
6171: }
6172: else {
6173: /* copy this column as is */
6174: for (r = 0; r < numIndices; r++) {
6175: for (c = 0; c < dof; c++) {
6176: tmpValues[r * newNumIndices + cStart + c] = values[r * numIndices + oldOff + c];
6177: }
6178: }
6179: }
6180: oldOff += dof;
6181: }
6182: }
6184: if (multiplyLeft) {
6185: DMGetWorkArray(dm,newNumIndices*newNumIndices,MPIU_SCALAR,&newValues);
6186: PetscArrayzero(newValues,newNumIndices*newNumIndices);
6187: /* multiply constraints transpose on the left */
6188: if (numFields) {
6189: for (f = 0; f < numFields; f++) {
6190: PetscInt oldOff = offsets[f];
6192: for (p = 0; p < numPoints; p++) {
6193: PetscInt rStart = newPointOffsets[f][p];
6194: PetscInt b = points[2 * p];
6195: PetscInt c, r, k;
6196: PetscInt dof;
6198: PetscSectionGetFieldDof(section,b,f,&dof);
6199: if (pointMatOffsets[f][p] < pointMatOffsets[f][p + 1]) {
6200: PetscInt nRows = newPointOffsets[f][p+1]-rStart;
6201: const PetscScalar *PETSC_RESTRICT mat = pointMat[f] + pointMatOffsets[f][p];
6203: for (r = 0; r < nRows; r++) {
6204: for (c = 0; c < newNumIndices; c++) {
6205: for (k = 0; k < dof; k++) {
6206: newValues[(rStart + r) * newNumIndices + c] += mat[k * nRows + r] * tmpValues[(oldOff + k) * newNumIndices + c];
6207: }
6208: }
6209: }
6210: }
6211: else {
6212: /* copy this row as is */
6213: for (r = 0; r < dof; r++) {
6214: for (c = 0; c < newNumIndices; c++) {
6215: newValues[(rStart + r) * newNumIndices + c] = tmpValues[(oldOff + r) * newNumIndices + c];
6216: }
6217: }
6218: }
6219: oldOff += dof;
6220: }
6221: }
6222: }
6223: else {
6224: PetscInt oldOff = 0;
6226: for (p = 0; p < numPoints; p++) {
6227: PetscInt rStart = newPointOffsets[0][p];
6228: PetscInt b = points[2 * p];
6229: PetscInt c, r, k;
6230: PetscInt dof;
6232: PetscSectionGetDof(section,b,&dof);
6233: if (pointMatOffsets[0][p] < pointMatOffsets[0][p + 1]) {
6234: PetscInt nRows = newPointOffsets[0][p+1]-rStart;
6235: const PetscScalar *PETSC_RESTRICT mat = pointMat[0] + pointMatOffsets[0][p];
6237: for (r = 0; r < nRows; r++) {
6238: for (c = 0; c < newNumIndices; c++) {
6239: for (k = 0; k < dof; k++) {
6240: newValues[(rStart + r) * newNumIndices + c] += mat[k * nRows + r] * tmpValues[(oldOff + k) * newNumIndices + c];
6241: }
6242: }
6243: }
6244: }
6245: else {
6246: /* copy this row as is */
6247: for (r = 0; r < dof; r++) {
6248: for (c = 0; c < newNumIndices; c++) {
6249: newValues[(rStart + r) * newNumIndices + c] = tmpValues[(oldOff + r) * newNumIndices + c];
6250: }
6251: }
6252: }
6253: oldOff += dof;
6254: }
6255: }
6257: DMRestoreWorkArray(dm,newNumIndices*numIndices,MPIU_SCALAR,&tmpValues);
6258: }
6259: else {
6260: newValues = tmpValues;
6261: }
6262: }
6264: /* clean up */
6265: DMRestoreWorkArray(dm,maxDof,MPIU_INT,&indices);
6266: DMRestoreWorkArray(dm,maxAnchor*maxDof,MPIU_INT,&newIndices);
6268: if (numFields) {
6269: for (f = 0; f < numFields; f++) {
6270: DMRestoreWorkArray(dm,pointMatOffsets[f][numPoints],MPIU_SCALAR,&pointMat[f]);
6271: DMRestoreWorkArray(dm,numPoints+1,MPIU_INT,&pointMatOffsets[f]);
6272: DMRestoreWorkArray(dm,numPoints+1,MPIU_INT,&newPointOffsets[f]);
6273: }
6274: }
6275: else {
6276: DMRestoreWorkArray(dm,pointMatOffsets[0][numPoints],MPIU_SCALAR,&pointMat[0]);
6277: DMRestoreWorkArray(dm,numPoints+1,MPIU_INT,&pointMatOffsets[0]);
6278: DMRestoreWorkArray(dm,numPoints+1,MPIU_INT,&newPointOffsets[0]);
6279: }
6280: ISRestoreIndices(aIS,&anchors);
6282: /* output */
6283: if (outPoints) {
6284: *outPoints = newPoints;
6285: }
6286: else {
6287: DMRestoreWorkArray(dm,2*newNumPoints,MPIU_INT,&newPoints);
6288: }
6289: if (outValues) {
6290: *outValues = newValues;
6291: }
6292: for (f = 0; f <= numFields; f++) {
6293: offsets[f] = newOffsets[f];
6294: }
6295: return(0);
6296: }
6298: /*@C
6299: DMPlexGetClosureIndices - Gets the global dof indices associated with the closure of the given point within the provided sections.
6301: Not collective
6303: Input Parameters:
6304: + dm - The DM
6305: . section - The PetscSection describing the points (a local section)
6306: . idxSection - The PetscSection from which to obtain indices (may be local or global)
6307: . point - The point defining the closure
6308: - useClPerm - Use the closure point permutation if available
6310: Output Parameters:
6311: + numIndices - The number of dof indices in the closure of point with the input sections
6312: . indices - The dof indices
6313: . outOffsets - Array to write the field offsets into, or NULL
6314: - values - The input values, which may be modified if sign flips are induced by the point symmetries, or NULL
6316: Notes:
6317: Must call DMPlexRestoreClosureIndices() to free allocated memory
6319: If idxSection is global, any constrained dofs (see DMAddBoundary(), for example) will get negative indices. The value
6320: of those indices is not significant. If idxSection is local, the constrained dofs will yield the involution -(idx+1)
6321: of their index in a local vector. A caller who does not wish to distinguish those points may recover the nonnegative
6322: indices via involution, -(-(idx+1)+1)==idx. Local indices are provided when idxSection == section, otherwise global
6323: indices (with the above semantics) are implied.
6325: Level: advanced
6327: .seealso DMPlexRestoreClosureIndices(), DMPlexVecGetClosure(), DMPlexMatSetClosure(), DMGetLocalSection(), DMGetGlobalSection()
6328: @*/
6329: PetscErrorCode DMPlexGetClosureIndices(DM dm, PetscSection section, PetscSection idxSection, PetscInt point, PetscBool useClPerm,
6330: PetscInt *numIndices, PetscInt *indices[], PetscInt outOffsets[], PetscScalar *values[])
6331: {
6332: /* Closure ordering */
6333: PetscSection clSection;
6334: IS clPoints;
6335: const PetscInt *clp;
6336: PetscInt *points;
6337: const PetscInt *clperm = NULL;
6338: /* Dof permutation and sign flips */
6339: const PetscInt **perms[32] = {NULL};
6340: const PetscScalar **flips[32] = {NULL};
6341: PetscScalar *valCopy = NULL;
6342: /* Hanging node constraints */
6343: PetscInt *pointsC = NULL;
6344: PetscScalar *valuesC = NULL;
6345: PetscInt NclC, NiC;
6347: PetscInt *idx;
6348: PetscInt Nf, Ncl, Ni = 0, offsets[32], p, f;
6349: PetscBool isLocal = (section == idxSection) ? PETSC_TRUE : PETSC_FALSE;
6350: PetscErrorCode ierr;
6360: PetscSectionGetNumFields(section, &Nf);
6361: if (Nf > 31) SETERRQ1(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_OUTOFRANGE, "Number of fields %D limited to 31", Nf);
6362: PetscArrayzero(offsets, 32);
6363: /* 1) Get points in closure */
6364: DMPlexGetCompressedClosure(dm, section, point, &Ncl, &points, &clSection, &clPoints, &clp);
6365: if (useClPerm) {
6366: PetscInt depth, clsize;
6367: DMPlexGetPointDepth(dm, point, &depth);
6368: for (clsize=0,p=0; p<Ncl; p++) {
6369: PetscInt dof;
6370: PetscSectionGetDof(section, points[2*p], &dof);
6371: clsize += dof;
6372: }
6373: PetscSectionGetClosureInversePermutation_Internal(section, (PetscObject) dm, depth, clsize, &clperm);
6374: }
6375: /* 2) Get number of indices on these points and field offsets from section */
6376: for (p = 0; p < Ncl*2; p += 2) {
6377: PetscInt dof, fdof;
6379: PetscSectionGetDof(section, points[p], &dof);
6380: for (f = 0; f < Nf; ++f) {
6381: PetscSectionGetFieldDof(section, points[p], f, &fdof);
6382: offsets[f+1] += fdof;
6383: }
6384: Ni += dof;
6385: }
6386: for (f = 1; f < Nf; ++f) offsets[f+1] += offsets[f];
6387: if (Nf && offsets[Nf] != Ni) SETERRQ2(PetscObjectComm((PetscObject) dm), PETSC_ERR_PLIB, "Invalid size for closure %D should be %D", offsets[Nf], Ni);
6388: /* 3) Get symmetries and sign flips. Apply sign flips to values if passed in (only works for square values matrix) */
6389: for (f = 0; f < PetscMax(1, Nf); ++f) {
6390: if (Nf) {PetscSectionGetFieldPointSyms(section, f, Ncl, points, &perms[f], &flips[f]);}
6391: else {PetscSectionGetPointSyms(section, Ncl, points, &perms[f], &flips[f]);}
6392: /* may need to apply sign changes to the element matrix */
6393: if (values && flips[f]) {
6394: PetscInt foffset = offsets[f];
6396: for (p = 0; p < Ncl; ++p) {
6397: PetscInt pnt = points[2*p], fdof;
6398: const PetscScalar *flip = flips[f] ? flips[f][p] : NULL;
6400: if (!Nf) {PetscSectionGetDof(section, pnt, &fdof);}
6401: else {PetscSectionGetFieldDof(section, pnt, f, &fdof);}
6402: if (flip) {
6403: PetscInt i, j, k;
6405: if (!valCopy) {
6406: DMGetWorkArray(dm, Ni*Ni, MPIU_SCALAR, &valCopy);
6407: for (j = 0; j < Ni * Ni; ++j) valCopy[j] = (*values)[j];
6408: *values = valCopy;
6409: }
6410: for (i = 0; i < fdof; ++i) {
6411: PetscScalar fval = flip[i];
6413: for (k = 0; k < Ni; ++k) {
6414: valCopy[Ni * (foffset + i) + k] *= fval;
6415: valCopy[Ni * k + (foffset + i)] *= fval;
6416: }
6417: }
6418: }
6419: foffset += fdof;
6420: }
6421: }
6422: }
6423: /* 4) Apply hanging node constraints. Get new symmetries and replace all storage with constrained storage */
6424: DMPlexAnchorsModifyMat(dm, section, Ncl, Ni, points, perms, values ? *values : NULL, &NclC, &NiC, &pointsC, values ? &valuesC : NULL, offsets, PETSC_TRUE);
6425: if (NclC) {
6426: if (valCopy) {DMRestoreWorkArray(dm, Ni*Ni, MPIU_SCALAR, &valCopy);}
6427: for (f = 0; f < PetscMax(1, Nf); ++f) {
6428: if (Nf) {PetscSectionRestoreFieldPointSyms(section, f, Ncl, points, &perms[f], &flips[f]);}
6429: else {PetscSectionRestorePointSyms(section, Ncl, points, &perms[f], &flips[f]);}
6430: }
6431: for (f = 0; f < PetscMax(1, Nf); ++f) {
6432: if (Nf) {PetscSectionGetFieldPointSyms(section, f, NclC, pointsC, &perms[f], &flips[f]);}
6433: else {PetscSectionGetPointSyms(section, NclC, pointsC, &perms[f], &flips[f]);}
6434: }
6435: DMPlexRestoreCompressedClosure(dm, section, point, &Ncl, &points, &clSection, &clPoints, &clp);
6436: Ncl = NclC;
6437: Ni = NiC;
6438: points = pointsC;
6439: if (values) *values = valuesC;
6440: }
6441: /* 5) Calculate indices */
6442: DMGetWorkArray(dm, Ni, MPIU_INT, &idx);
6443: if (Nf) {
6444: PetscInt idxOff;
6445: PetscBool useFieldOffsets;
6447: if (outOffsets) {for (f = 0; f <= Nf; f++) outOffsets[f] = offsets[f];}
6448: PetscSectionGetUseFieldOffsets(idxSection, &useFieldOffsets);
6449: if (useFieldOffsets) {
6450: for (p = 0; p < Ncl; ++p) {
6451: const PetscInt pnt = points[p*2];
6453: DMPlexGetIndicesPointFieldsSplit_Internal(section, idxSection, pnt, offsets, perms, p, clperm, idx);
6454: }
6455: } else {
6456: for (p = 0; p < Ncl; ++p) {
6457: const PetscInt pnt = points[p*2];
6459: PetscSectionGetOffset(idxSection, pnt, &idxOff);
6460: /* Note that we pass a local section even though we're using global offsets. This is because global sections do
6461: * not (at the time of this writing) have fields set. They probably should, in which case we would pass the
6462: * global section. */
6463: DMPlexGetIndicesPointFields_Internal(section, isLocal, pnt, idxOff < 0 ? -(idxOff+1) : idxOff, offsets, PETSC_FALSE, perms, p, clperm, idx);
6464: }
6465: }
6466: } else {
6467: PetscInt off = 0, idxOff;
6469: for (p = 0; p < Ncl; ++p) {
6470: const PetscInt pnt = points[p*2];
6471: const PetscInt *perm = perms[0] ? perms[0][p] : NULL;
6473: PetscSectionGetOffset(idxSection, pnt, &idxOff);
6474: /* Note that we pass a local section even though we're using global offsets. This is because global sections do
6475: * not (at the time of this writing) have fields set. They probably should, in which case we would pass the global section. */
6476: DMPlexGetIndicesPoint_Internal(section, isLocal, pnt, idxOff < 0 ? -(idxOff+1) : idxOff, &off, PETSC_FALSE, perm, clperm, idx);
6477: }
6478: }
6479: /* 6) Cleanup */
6480: for (f = 0; f < PetscMax(1, Nf); ++f) {
6481: if (Nf) {PetscSectionRestoreFieldPointSyms(section, f, Ncl, points, &perms[f], &flips[f]);}
6482: else {PetscSectionRestorePointSyms(section, Ncl, points, &perms[f], &flips[f]);}
6483: }
6484: if (NclC) {
6485: DMRestoreWorkArray(dm, NclC*2, MPIU_INT, &pointsC);
6486: } else {
6487: DMPlexRestoreCompressedClosure(dm, section, point, &Ncl, &points, &clSection, &clPoints, &clp);
6488: }
6490: if (numIndices) *numIndices = Ni;
6491: if (indices) *indices = idx;
6492: return(0);
6493: }
6495: /*@C
6496: DMPlexRestoreClosureIndices - Restores the global dof indices associated with the closure of the given point within the provided sections.
6498: Not collective
6500: Input Parameters:
6501: + dm - The DM
6502: . section - The PetscSection describing the points (a local section)
6503: . idxSection - The PetscSection from which to obtain indices (may be local or global)
6504: . point - The point defining the closure
6505: - useClPerm - Use the closure point permutation if available
6507: Output Parameters:
6508: + numIndices - The number of dof indices in the closure of point with the input sections
6509: . indices - The dof indices
6510: . outOffsets - Array to write the field offsets into, or NULL
6511: - values - The input values, which may be modified if sign flips are induced by the point symmetries, or NULL
6513: Notes:
6514: If values were modified, the user is responsible for calling DMRestoreWorkArray(dm, 0, MPIU_SCALAR, &values).
6516: If idxSection is global, any constrained dofs (see DMAddBoundary(), for example) will get negative indices. The value
6517: of those indices is not significant. If idxSection is local, the constrained dofs will yield the involution -(idx+1)
6518: of their index in a local vector. A caller who does not wish to distinguish those points may recover the nonnegative
6519: indices via involution, -(-(idx+1)+1)==idx. Local indices are provided when idxSection == section, otherwise global
6520: indices (with the above semantics) are implied.
6522: Level: advanced
6524: .seealso DMPlexGetClosureIndices(), DMPlexVecGetClosure(), DMPlexMatSetClosure(), DMGetLocalSection(), DMGetGlobalSection()
6525: @*/
6526: PetscErrorCode DMPlexRestoreClosureIndices(DM dm, PetscSection section, PetscSection idxSection, PetscInt point, PetscBool useClPerm,
6527: PetscInt *numIndices, PetscInt *indices[], PetscInt outOffsets[], PetscScalar *values[])
6528: {
6534: DMRestoreWorkArray(dm, 0, MPIU_INT, indices);
6535: return(0);
6536: }
6538: /*@C
6539: DMPlexMatSetClosure - Set an array of the values on the closure of 'point'
6541: Not collective
6543: Input Parameters:
6544: + dm - The DM
6545: . section - The section describing the layout in v, or NULL to use the default section
6546: . globalSection - The section describing the layout in v, or NULL to use the default global section
6547: . A - The matrix
6548: . point - The point in the DM
6549: . values - The array of values
6550: - mode - The insert mode, where INSERT_ALL_VALUES and ADD_ALL_VALUES also overwrite boundary conditions
6552: Fortran Notes:
6553: This routine is only available in Fortran 90, and you must include petsc.h90 in your code.
6555: Level: intermediate
6557: .seealso DMPlexMatSetClosureGeneral(), DMPlexVecGetClosure(), DMPlexVecSetClosure()
6558: @*/
6559: PetscErrorCode DMPlexMatSetClosure(DM dm, PetscSection section, PetscSection globalSection, Mat A, PetscInt point, const PetscScalar values[], InsertMode mode)
6560: {
6561: DM_Plex *mesh = (DM_Plex*) dm->data;
6562: PetscInt *indices;
6563: PetscInt numIndices;
6564: const PetscScalar *valuesOrig = values;
6565: PetscErrorCode ierr;
6569: if (!section) {DMGetLocalSection(dm, §ion);}
6571: if (!globalSection) {DMGetGlobalSection(dm, &globalSection);}
6575: DMPlexGetClosureIndices(dm, section, globalSection, point, PETSC_TRUE, &numIndices, &indices, NULL, (PetscScalar **) &values);
6577: if (mesh->printSetValues) {DMPlexPrintMatSetValues(PETSC_VIEWER_STDOUT_SELF, A, point, numIndices, indices, 0, NULL, values);}
6578: MatSetValues(A, numIndices, indices, numIndices, indices, values, mode);
6579: if (ierr) {
6580: PetscMPIInt rank;
6581: PetscErrorCode ierr2;
6583: ierr2 = MPI_Comm_rank(PetscObjectComm((PetscObject)A), &rank);CHKERRQ(ierr2);
6584: ierr2 = (*PetscErrorPrintf)("[%d]ERROR in DMPlexMatSetClosure\n", rank);CHKERRQ(ierr2);
6585: ierr2 = DMPlexPrintMatSetValues(PETSC_VIEWER_STDERR_SELF, A, point, numIndices, indices, 0, NULL, values);CHKERRQ(ierr2);
6586: ierr2 = DMPlexRestoreClosureIndices(dm, section, globalSection, point, PETSC_TRUE, &numIndices, &indices, NULL, (PetscScalar **) &values);CHKERRQ(ierr2);
6587: if (values != valuesOrig) {ierr2 = DMRestoreWorkArray(dm, 0, MPIU_SCALAR, &values);CHKERRQ(ierr2);}
6588:
6589: }
6590: if (mesh->printFEM > 1) {
6591: PetscInt i;
6592: PetscPrintf(PETSC_COMM_SELF, " Indices:");
6593: for (i = 0; i < numIndices; ++i) {PetscPrintf(PETSC_COMM_SELF, " %D", indices[i]);}
6594: PetscPrintf(PETSC_COMM_SELF, "\n");
6595: }
6597: DMPlexRestoreClosureIndices(dm, section, globalSection, point, PETSC_TRUE, &numIndices, &indices, NULL, (PetscScalar **) &values);
6598: if (values != valuesOrig) {DMRestoreWorkArray(dm, 0, MPIU_SCALAR, &values);}
6599: return(0);
6600: }
6602: /*@C
6603: DMPlexMatSetClosure - Set an array of the values on the closure of 'point' using a different row and column section
6605: Not collective
6607: Input Parameters:
6608: + dmRow - The DM for the row fields
6609: . sectionRow - The section describing the layout, or NULL to use the default section in dmRow
6610: . globalSectionRow - The section describing the layout, or NULL to use the default global section in dmRow
6611: . dmCol - The DM for the column fields
6612: . sectionCol - The section describing the layout, or NULL to use the default section in dmCol
6613: . globalSectionCol - The section describing the layout, or NULL to use the default global section in dmCol
6614: . A - The matrix
6615: . point - The point in the DMs
6616: . values - The array of values
6617: - mode - The insert mode, where INSERT_ALL_VALUES and ADD_ALL_VALUES also overwrite boundary conditions
6619: Level: intermediate
6621: .seealso DMPlexMatSetClosure(), DMPlexVecGetClosure(), DMPlexVecSetClosure()
6622: @*/
6623: PetscErrorCode DMPlexMatSetClosureGeneral(DM dmRow, PetscSection sectionRow, PetscSection globalSectionRow, DM dmCol, PetscSection sectionCol, PetscSection globalSectionCol, Mat A, PetscInt point, const PetscScalar values[], InsertMode mode)
6624: {
6625: DM_Plex *mesh = (DM_Plex*) dmRow->data;
6626: PetscInt *indicesRow, *indicesCol;
6627: PetscInt numIndicesRow, numIndicesCol;
6628: const PetscScalar *valuesOrig = values;
6629: PetscErrorCode ierr;
6633: if (!sectionRow) {DMGetLocalSection(dmRow, §ionRow);}
6635: if (!globalSectionRow) {DMGetGlobalSection(dmRow, &globalSectionRow);}
6638: if (!sectionCol) {DMGetLocalSection(dmCol, §ionCol);}
6640: if (!globalSectionCol) {DMGetGlobalSection(dmCol, &globalSectionCol);}
6644: DMPlexGetClosureIndices(dmRow, sectionRow, globalSectionRow, point, PETSC_TRUE, &numIndicesRow, &indicesRow, NULL, (PetscScalar **) &values);
6645: DMPlexGetClosureIndices(dmCol, sectionCol, globalSectionCol, point, PETSC_TRUE, &numIndicesCol, &indicesCol, NULL, (PetscScalar **) &values);
6647: if (mesh->printSetValues) {DMPlexPrintMatSetValues(PETSC_VIEWER_STDOUT_SELF, A, point, numIndicesRow, indicesRow, numIndicesCol, indicesCol, values);}
6648: MatSetValues(A, numIndicesRow, indicesRow, numIndicesCol, indicesCol, values, mode);
6649: if (ierr) {
6650: PetscMPIInt rank;
6651: PetscErrorCode ierr2;
6653: ierr2 = MPI_Comm_rank(PetscObjectComm((PetscObject)A), &rank);CHKERRQ(ierr2);
6654: ierr2 = (*PetscErrorPrintf)("[%d]ERROR in DMPlexMatSetClosure\n", rank);CHKERRQ(ierr2);
6655: ierr2 = DMPlexPrintMatSetValues(PETSC_VIEWER_STDERR_SELF, A, point, numIndicesRow, indicesRow, numIndicesCol, indicesCol, values);CHKERRQ(ierr2);
6656: ierr2 = DMPlexRestoreClosureIndices(dmRow, sectionRow, globalSectionRow, point, PETSC_TRUE, &numIndicesRow, &indicesRow, NULL, (PetscScalar **) &values);CHKERRQ(ierr2);
6657: ierr2 = DMPlexRestoreClosureIndices(dmCol, sectionCol, globalSectionCol, point, PETSC_TRUE, &numIndicesCol, &indicesRow, NULL, (PetscScalar **) &values);CHKERRQ(ierr2);
6658: if (values != valuesOrig) {ierr2 = DMRestoreWorkArray(dmRow, 0, MPIU_SCALAR, &values);CHKERRQ(ierr2);}
6659:
6660: }
6662: DMPlexRestoreClosureIndices(dmRow, sectionRow, globalSectionRow, point, PETSC_TRUE, &numIndicesRow, &indicesRow, NULL, (PetscScalar **) &values);
6663: DMPlexRestoreClosureIndices(dmCol, sectionCol, globalSectionCol, point, PETSC_TRUE, &numIndicesCol, &indicesCol, NULL, (PetscScalar **) &values);
6664: if (values != valuesOrig) {DMRestoreWorkArray(dmRow, 0, MPIU_SCALAR, &values);}
6665: return(0);
6666: }
6668: PetscErrorCode DMPlexMatSetClosureRefined(DM dmf, PetscSection fsection, PetscSection globalFSection, DM dmc, PetscSection csection, PetscSection globalCSection, Mat A, PetscInt point, const PetscScalar values[], InsertMode mode)
6669: {
6670: DM_Plex *mesh = (DM_Plex*) dmf->data;
6671: PetscInt *fpoints = NULL, *ftotpoints = NULL;
6672: PetscInt *cpoints = NULL;
6673: PetscInt *findices, *cindices;
6674: const PetscInt *fclperm = NULL, *cclperm = NULL; /* Closure permutations cannot work here */
6675: PetscInt foffsets[32], coffsets[32];
6676: DMPolytopeType ct;
6677: PetscInt numFields, numSubcells, maxFPoints, numFPoints, numCPoints, numFIndices, numCIndices, dof, off, globalOff, pStart, pEnd, p, q, r, s, f;
6678: PetscErrorCode ierr;
6683: if (!fsection) {DMGetLocalSection(dmf, &fsection);}
6685: if (!csection) {DMGetLocalSection(dmc, &csection);}
6687: if (!globalFSection) {DMGetGlobalSection(dmf, &globalFSection);}
6689: if (!globalCSection) {DMGetGlobalSection(dmc, &globalCSection);}
6692: PetscSectionGetNumFields(fsection, &numFields);
6693: if (numFields > 31) SETERRQ1(PetscObjectComm((PetscObject)dmf), PETSC_ERR_ARG_OUTOFRANGE, "Number of fields %D limited to 31", numFields);
6694: PetscArrayzero(foffsets, 32);
6695: PetscArrayzero(coffsets, 32);
6696: /* Column indices */
6697: DMPlexGetTransitiveClosure(dmc, point, PETSC_TRUE, &numCPoints, &cpoints);
6698: maxFPoints = numCPoints;
6699: /* Compress out points not in the section */
6700: /* TODO: Squeeze out points with 0 dof as well */
6701: PetscSectionGetChart(csection, &pStart, &pEnd);
6702: for (p = 0, q = 0; p < numCPoints*2; p += 2) {
6703: if ((cpoints[p] >= pStart) && (cpoints[p] < pEnd)) {
6704: cpoints[q*2] = cpoints[p];
6705: cpoints[q*2+1] = cpoints[p+1];
6706: ++q;
6707: }
6708: }
6709: numCPoints = q;
6710: for (p = 0, numCIndices = 0; p < numCPoints*2; p += 2) {
6711: PetscInt fdof;
6713: PetscSectionGetDof(csection, cpoints[p], &dof);
6714: if (!dof) continue;
6715: for (f = 0; f < numFields; ++f) {
6716: PetscSectionGetFieldDof(csection, cpoints[p], f, &fdof);
6717: coffsets[f+1] += fdof;
6718: }
6719: numCIndices += dof;
6720: }
6721: for (f = 1; f < numFields; ++f) coffsets[f+1] += coffsets[f];
6722: /* Row indices */
6723: DMPlexGetCellType(dmc, point, &ct);
6724: {
6725: DMPlexCellRefiner cr;
6726: DMPlexCellRefinerCreate(dmc, &cr);
6727: DMPlexCellRefinerGetAffineTransforms(cr, ct, &numSubcells, NULL, NULL, NULL);
6728: DMPlexCellRefinerDestroy(&cr);
6729: }
6730: DMGetWorkArray(dmf, maxFPoints*2*numSubcells, MPIU_INT, &ftotpoints);
6731: for (r = 0, q = 0; r < numSubcells; ++r) {
6732: /* TODO Map from coarse to fine cells */
6733: DMPlexGetTransitiveClosure(dmf, point*numSubcells + r, PETSC_TRUE, &numFPoints, &fpoints);
6734: /* Compress out points not in the section */
6735: PetscSectionGetChart(fsection, &pStart, &pEnd);
6736: for (p = 0; p < numFPoints*2; p += 2) {
6737: if ((fpoints[p] >= pStart) && (fpoints[p] < pEnd)) {
6738: PetscSectionGetDof(fsection, fpoints[p], &dof);
6739: if (!dof) continue;
6740: for (s = 0; s < q; ++s) if (fpoints[p] == ftotpoints[s*2]) break;
6741: if (s < q) continue;
6742: ftotpoints[q*2] = fpoints[p];
6743: ftotpoints[q*2+1] = fpoints[p+1];
6744: ++q;
6745: }
6746: }
6747: DMPlexRestoreTransitiveClosure(dmf, point, PETSC_TRUE, &numFPoints, &fpoints);
6748: }
6749: numFPoints = q;
6750: for (p = 0, numFIndices = 0; p < numFPoints*2; p += 2) {
6751: PetscInt fdof;
6753: PetscSectionGetDof(fsection, ftotpoints[p], &dof);
6754: if (!dof) continue;
6755: for (f = 0; f < numFields; ++f) {
6756: PetscSectionGetFieldDof(fsection, ftotpoints[p], f, &fdof);
6757: foffsets[f+1] += fdof;
6758: }
6759: numFIndices += dof;
6760: }
6761: for (f = 1; f < numFields; ++f) foffsets[f+1] += foffsets[f];
6763: if (numFields && foffsets[numFields] != numFIndices) SETERRQ2(PetscObjectComm((PetscObject)dmf), PETSC_ERR_PLIB, "Invalid size for closure %D should be %D", foffsets[numFields], numFIndices);
6764: if (numFields && coffsets[numFields] != numCIndices) SETERRQ2(PetscObjectComm((PetscObject)dmc), PETSC_ERR_PLIB, "Invalid size for closure %D should be %D", coffsets[numFields], numCIndices);
6765: DMGetWorkArray(dmf, numFIndices, MPIU_INT, &findices);
6766: DMGetWorkArray(dmc, numCIndices, MPIU_INT, &cindices);
6767: if (numFields) {
6768: const PetscInt **permsF[32] = {NULL};
6769: const PetscInt **permsC[32] = {NULL};
6771: for (f = 0; f < numFields; f++) {
6772: PetscSectionGetFieldPointSyms(fsection,f,numFPoints,ftotpoints,&permsF[f],NULL);
6773: PetscSectionGetFieldPointSyms(csection,f,numCPoints,cpoints,&permsC[f],NULL);
6774: }
6775: for (p = 0; p < numFPoints; p++) {
6776: PetscSectionGetOffset(globalFSection, ftotpoints[2*p], &globalOff);
6777: DMPlexGetIndicesPointFields_Internal(fsection, PETSC_FALSE, ftotpoints[2*p], globalOff < 0 ? -(globalOff+1) : globalOff, foffsets, PETSC_FALSE, permsF, p, fclperm, findices);
6778: }
6779: for (p = 0; p < numCPoints; p++) {
6780: PetscSectionGetOffset(globalCSection, cpoints[2*p], &globalOff);
6781: DMPlexGetIndicesPointFields_Internal(csection, PETSC_FALSE, cpoints[2*p], globalOff < 0 ? -(globalOff+1) : globalOff, coffsets, PETSC_FALSE, permsC, p, cclperm, cindices);
6782: }
6783: for (f = 0; f < numFields; f++) {
6784: PetscSectionRestoreFieldPointSyms(fsection,f,numFPoints,ftotpoints,&permsF[f],NULL);
6785: PetscSectionRestoreFieldPointSyms(csection,f,numCPoints,cpoints,&permsC[f],NULL);
6786: }
6787: } else {
6788: const PetscInt **permsF = NULL;
6789: const PetscInt **permsC = NULL;
6791: PetscSectionGetPointSyms(fsection,numFPoints,ftotpoints,&permsF,NULL);
6792: PetscSectionGetPointSyms(csection,numCPoints,cpoints,&permsC,NULL);
6793: for (p = 0, off = 0; p < numFPoints; p++) {
6794: const PetscInt *perm = permsF ? permsF[p] : NULL;
6796: PetscSectionGetOffset(globalFSection, ftotpoints[2*p], &globalOff);
6797: DMPlexGetIndicesPoint_Internal(fsection, PETSC_FALSE, ftotpoints[2*p], globalOff < 0 ? -(globalOff+1) : globalOff, &off, PETSC_FALSE, perm, fclperm, findices);
6798: }
6799: for (p = 0, off = 0; p < numCPoints; p++) {
6800: const PetscInt *perm = permsC ? permsC[p] : NULL;
6802: PetscSectionGetOffset(globalCSection, cpoints[2*p], &globalOff);
6803: DMPlexGetIndicesPoint_Internal(csection, PETSC_FALSE, cpoints[2*p], globalOff < 0 ? -(globalOff+1) : globalOff, &off, PETSC_FALSE, perm, cclperm, cindices);
6804: }
6805: PetscSectionRestorePointSyms(fsection,numFPoints,ftotpoints,&permsF,NULL);
6806: PetscSectionRestorePointSyms(csection,numCPoints,cpoints,&permsC,NULL);
6807: }
6808: if (mesh->printSetValues) {DMPlexPrintMatSetValues(PETSC_VIEWER_STDOUT_SELF, A, point, numFIndices, findices, numCIndices, cindices, values);}
6809: /* TODO: flips */
6810: MatSetValues(A, numFIndices, findices, numCIndices, cindices, values, mode);
6811: if (ierr) {
6812: PetscMPIInt rank;
6813: PetscErrorCode ierr2;
6815: ierr2 = MPI_Comm_rank(PetscObjectComm((PetscObject)A), &rank);CHKERRQ(ierr2);
6816: ierr2 = (*PetscErrorPrintf)("[%d]ERROR in DMPlexMatSetClosure\n", rank);CHKERRQ(ierr2);
6817: ierr2 = DMPlexPrintMatSetValues(PETSC_VIEWER_STDERR_SELF, A, point, numFIndices, findices, numCIndices, cindices, values);CHKERRQ(ierr2);
6818: ierr2 = DMRestoreWorkArray(dmf, numFIndices, MPIU_INT, &findices);CHKERRQ(ierr2);
6819: ierr2 = DMRestoreWorkArray(dmc, numCIndices, MPIU_INT, &cindices);CHKERRQ(ierr2);
6820:
6821: }
6822: DMRestoreWorkArray(dmf, numCPoints*2*4, MPIU_INT, &ftotpoints);
6823: DMPlexRestoreTransitiveClosure(dmc, point, PETSC_TRUE, &numCPoints, &cpoints);
6824: DMRestoreWorkArray(dmf, numFIndices, MPIU_INT, &findices);
6825: DMRestoreWorkArray(dmc, numCIndices, MPIU_INT, &cindices);
6826: return(0);
6827: }
6829: PetscErrorCode DMPlexMatGetClosureIndicesRefined(DM dmf, PetscSection fsection, PetscSection globalFSection, DM dmc, PetscSection csection, PetscSection globalCSection, PetscInt point, PetscInt cindices[], PetscInt findices[])
6830: {
6831: PetscInt *fpoints = NULL, *ftotpoints = NULL;
6832: PetscInt *cpoints = NULL;
6833: PetscInt foffsets[32], coffsets[32];
6834: const PetscInt *fclperm = NULL, *cclperm = NULL; /* Closure permutations cannot work here */
6835: DMPolytopeType ct;
6836: PetscInt numFields, numSubcells, maxFPoints, numFPoints, numCPoints, numFIndices, numCIndices, dof, off, globalOff, pStart, pEnd, p, q, r, s, f;
6842: if (!fsection) {DMGetLocalSection(dmf, &fsection);}
6844: if (!csection) {DMGetLocalSection(dmc, &csection);}
6846: if (!globalFSection) {DMGetGlobalSection(dmf, &globalFSection);}
6848: if (!globalCSection) {DMGetGlobalSection(dmc, &globalCSection);}
6850: PetscSectionGetNumFields(fsection, &numFields);
6851: if (numFields > 31) SETERRQ1(PetscObjectComm((PetscObject)dmf), PETSC_ERR_ARG_OUTOFRANGE, "Number of fields %D limited to 31", numFields);
6852: PetscArrayzero(foffsets, 32);
6853: PetscArrayzero(coffsets, 32);
6854: /* Column indices */
6855: DMPlexGetTransitiveClosure(dmc, point, PETSC_TRUE, &numCPoints, &cpoints);
6856: maxFPoints = numCPoints;
6857: /* Compress out points not in the section */
6858: /* TODO: Squeeze out points with 0 dof as well */
6859: PetscSectionGetChart(csection, &pStart, &pEnd);
6860: for (p = 0, q = 0; p < numCPoints*2; p += 2) {
6861: if ((cpoints[p] >= pStart) && (cpoints[p] < pEnd)) {
6862: cpoints[q*2] = cpoints[p];
6863: cpoints[q*2+1] = cpoints[p+1];
6864: ++q;
6865: }
6866: }
6867: numCPoints = q;
6868: for (p = 0, numCIndices = 0; p < numCPoints*2; p += 2) {
6869: PetscInt fdof;
6871: PetscSectionGetDof(csection, cpoints[p], &dof);
6872: if (!dof) continue;
6873: for (f = 0; f < numFields; ++f) {
6874: PetscSectionGetFieldDof(csection, cpoints[p], f, &fdof);
6875: coffsets[f+1] += fdof;
6876: }
6877: numCIndices += dof;
6878: }
6879: for (f = 1; f < numFields; ++f) coffsets[f+1] += coffsets[f];
6880: /* Row indices */
6881: DMPlexGetCellType(dmc, point, &ct);
6882: {
6883: DMPlexCellRefiner cr;
6884: DMPlexCellRefinerCreate(dmc, &cr);
6885: DMPlexCellRefinerGetAffineTransforms(cr, ct, &numSubcells, NULL, NULL, NULL);
6886: DMPlexCellRefinerDestroy(&cr);
6887: }
6888: DMGetWorkArray(dmf, maxFPoints*2*numSubcells, MPIU_INT, &ftotpoints);
6889: for (r = 0, q = 0; r < numSubcells; ++r) {
6890: /* TODO Map from coarse to fine cells */
6891: DMPlexGetTransitiveClosure(dmf, point*numSubcells + r, PETSC_TRUE, &numFPoints, &fpoints);
6892: /* Compress out points not in the section */
6893: PetscSectionGetChart(fsection, &pStart, &pEnd);
6894: for (p = 0; p < numFPoints*2; p += 2) {
6895: if ((fpoints[p] >= pStart) && (fpoints[p] < pEnd)) {
6896: PetscSectionGetDof(fsection, fpoints[p], &dof);
6897: if (!dof) continue;
6898: for (s = 0; s < q; ++s) if (fpoints[p] == ftotpoints[s*2]) break;
6899: if (s < q) continue;
6900: ftotpoints[q*2] = fpoints[p];
6901: ftotpoints[q*2+1] = fpoints[p+1];
6902: ++q;
6903: }
6904: }
6905: DMPlexRestoreTransitiveClosure(dmf, point, PETSC_TRUE, &numFPoints, &fpoints);
6906: }
6907: numFPoints = q;
6908: for (p = 0, numFIndices = 0; p < numFPoints*2; p += 2) {
6909: PetscInt fdof;
6911: PetscSectionGetDof(fsection, ftotpoints[p], &dof);
6912: if (!dof) continue;
6913: for (f = 0; f < numFields; ++f) {
6914: PetscSectionGetFieldDof(fsection, ftotpoints[p], f, &fdof);
6915: foffsets[f+1] += fdof;
6916: }
6917: numFIndices += dof;
6918: }
6919: for (f = 1; f < numFields; ++f) foffsets[f+1] += foffsets[f];
6921: if (numFields && foffsets[numFields] != numFIndices) SETERRQ2(PetscObjectComm((PetscObject)dmf), PETSC_ERR_PLIB, "Invalid size for closure %D should be %D", foffsets[numFields], numFIndices);
6922: if (numFields && coffsets[numFields] != numCIndices) SETERRQ2(PetscObjectComm((PetscObject)dmc), PETSC_ERR_PLIB, "Invalid size for closure %D should be %D", coffsets[numFields], numCIndices);
6923: if (numFields) {
6924: const PetscInt **permsF[32] = {NULL};
6925: const PetscInt **permsC[32] = {NULL};
6927: for (f = 0; f < numFields; f++) {
6928: PetscSectionGetFieldPointSyms(fsection,f,numFPoints,ftotpoints,&permsF[f],NULL);
6929: PetscSectionGetFieldPointSyms(csection,f,numCPoints,cpoints,&permsC[f],NULL);
6930: }
6931: for (p = 0; p < numFPoints; p++) {
6932: PetscSectionGetOffset(globalFSection, ftotpoints[2*p], &globalOff);
6933: DMPlexGetIndicesPointFields_Internal(fsection, PETSC_FALSE, ftotpoints[2*p], globalOff < 0 ? -(globalOff+1) : globalOff, foffsets, PETSC_FALSE, permsF, p, fclperm, findices);
6934: }
6935: for (p = 0; p < numCPoints; p++) {
6936: PetscSectionGetOffset(globalCSection, cpoints[2*p], &globalOff);
6937: DMPlexGetIndicesPointFields_Internal(csection, PETSC_FALSE, cpoints[2*p], globalOff < 0 ? -(globalOff+1) : globalOff, coffsets, PETSC_FALSE, permsC, p, cclperm, cindices);
6938: }
6939: for (f = 0; f < numFields; f++) {
6940: PetscSectionRestoreFieldPointSyms(fsection,f,numFPoints,ftotpoints,&permsF[f],NULL);
6941: PetscSectionRestoreFieldPointSyms(csection,f,numCPoints,cpoints,&permsC[f],NULL);
6942: }
6943: } else {
6944: const PetscInt **permsF = NULL;
6945: const PetscInt **permsC = NULL;
6947: PetscSectionGetPointSyms(fsection,numFPoints,ftotpoints,&permsF,NULL);
6948: PetscSectionGetPointSyms(csection,numCPoints,cpoints,&permsC,NULL);
6949: for (p = 0, off = 0; p < numFPoints; p++) {
6950: const PetscInt *perm = permsF ? permsF[p] : NULL;
6952: PetscSectionGetOffset(globalFSection, ftotpoints[2*p], &globalOff);
6953: DMPlexGetIndicesPoint_Internal(fsection, PETSC_FALSE, ftotpoints[2*p], globalOff < 0 ? -(globalOff+1) : globalOff, &off, PETSC_FALSE, perm, fclperm, findices);
6954: }
6955: for (p = 0, off = 0; p < numCPoints; p++) {
6956: const PetscInt *perm = permsC ? permsC[p] : NULL;
6958: PetscSectionGetOffset(globalCSection, cpoints[2*p], &globalOff);
6959: DMPlexGetIndicesPoint_Internal(csection, PETSC_FALSE, cpoints[2*p], globalOff < 0 ? -(globalOff+1) : globalOff, &off, PETSC_FALSE, perm, cclperm, cindices);
6960: }
6961: PetscSectionRestorePointSyms(fsection,numFPoints,ftotpoints,&permsF,NULL);
6962: PetscSectionRestorePointSyms(csection,numCPoints,cpoints,&permsC,NULL);
6963: }
6964: DMRestoreWorkArray(dmf, numCPoints*2*4, MPIU_INT, &ftotpoints);
6965: DMPlexRestoreTransitiveClosure(dmc, point, PETSC_TRUE, &numCPoints, &cpoints);
6966: return(0);
6967: }
6969: /*@C
6970: DMPlexGetVTKCellHeight - Returns the height in the DAG used to determine which points are cells (normally 0)
6972: Input Parameter:
6973: . dm - The DMPlex object
6975: Output Parameter:
6976: . cellHeight - The height of a cell
6978: Level: developer
6980: .seealso DMPlexSetVTKCellHeight()
6981: @*/
6982: PetscErrorCode DMPlexGetVTKCellHeight(DM dm, PetscInt *cellHeight)
6983: {
6984: DM_Plex *mesh = (DM_Plex*) dm->data;
6989: *cellHeight = mesh->vtkCellHeight;
6990: return(0);
6991: }
6993: /*@C
6994: DMPlexSetVTKCellHeight - Sets the height in the DAG used to determine which points are cells (normally 0)
6996: Input Parameters:
6997: + dm - The DMPlex object
6998: - cellHeight - The height of a cell
7000: Level: developer
7002: .seealso DMPlexGetVTKCellHeight()
7003: @*/
7004: PetscErrorCode DMPlexSetVTKCellHeight(DM dm, PetscInt cellHeight)
7005: {
7006: DM_Plex *mesh = (DM_Plex*) dm->data;
7010: mesh->vtkCellHeight = cellHeight;
7011: return(0);
7012: }
7014: /*@
7015: DMPlexGetGhostCellStratum - Get the range of cells which are used to enforce FV boundary conditions
7017: Input Parameter:
7018: . dm - The DMPlex object
7020: Output Parameters:
7021: + gcStart - The first ghost cell, or NULL
7022: - gcEnd - The upper bound on ghost cells, or NULL
7024: Level: advanced
7026: .seealso DMPlexConstructGhostCells(), DMPlexGetGhostCellStratum()
7027: @*/
7028: PetscErrorCode DMPlexGetGhostCellStratum(DM dm, PetscInt *gcStart, PetscInt *gcEnd)
7029: {
7030: DMLabel ctLabel;
7035: DMPlexGetCellTypeLabel(dm, &ctLabel);
7036: DMLabelGetStratumBounds(ctLabel, DM_POLYTOPE_FV_GHOST, gcStart, gcEnd);
7037: return(0);
7038: }
7040: /* We can easily have a form that takes an IS instead */
7041: PetscErrorCode DMPlexCreateNumbering_Plex(DM dm, PetscInt pStart, PetscInt pEnd, PetscInt shift, PetscInt *globalSize, PetscSF sf, IS *numbering)
7042: {
7043: PetscSection section, globalSection;
7044: PetscInt *numbers, p;
7048: PetscSectionCreate(PetscObjectComm((PetscObject)dm), §ion);
7049: PetscSectionSetChart(section, pStart, pEnd);
7050: for (p = pStart; p < pEnd; ++p) {
7051: PetscSectionSetDof(section, p, 1);
7052: }
7053: PetscSectionSetUp(section);
7054: PetscSectionCreateGlobalSection(section, sf, PETSC_FALSE, PETSC_FALSE, &globalSection);
7055: PetscMalloc1(pEnd - pStart, &numbers);
7056: for (p = pStart; p < pEnd; ++p) {
7057: PetscSectionGetOffset(globalSection, p, &numbers[p-pStart]);
7058: if (numbers[p-pStart] < 0) numbers[p-pStart] -= shift;
7059: else numbers[p-pStart] += shift;
7060: }
7061: ISCreateGeneral(PetscObjectComm((PetscObject) dm), pEnd - pStart, numbers, PETSC_OWN_POINTER, numbering);
7062: if (globalSize) {
7063: PetscLayout layout;
7064: PetscSectionGetPointLayout(PetscObjectComm((PetscObject) dm), globalSection, &layout);
7065: PetscLayoutGetSize(layout, globalSize);
7066: PetscLayoutDestroy(&layout);
7067: }
7068: PetscSectionDestroy(§ion);
7069: PetscSectionDestroy(&globalSection);
7070: return(0);
7071: }
7073: PetscErrorCode DMPlexCreateCellNumbering_Internal(DM dm, PetscBool includeHybrid, IS *globalCellNumbers)
7074: {
7075: PetscInt cellHeight, cStart, cEnd;
7079: DMPlexGetVTKCellHeight(dm, &cellHeight);
7080: if (includeHybrid) {DMPlexGetHeightStratum(dm, cellHeight, &cStart, &cEnd);}
7081: else {DMPlexGetSimplexOrBoxCells(dm, cellHeight, &cStart, &cEnd);}
7082: DMPlexCreateNumbering_Plex(dm, cStart, cEnd, 0, NULL, dm->sf, globalCellNumbers);
7083: return(0);
7084: }
7086: /*@
7087: DMPlexGetCellNumbering - Get a global cell numbering for all cells on this process
7089: Input Parameter:
7090: . dm - The DMPlex object
7092: Output Parameter:
7093: . globalCellNumbers - Global cell numbers for all cells on this process
7095: Level: developer
7097: .seealso DMPlexGetVertexNumbering()
7098: @*/
7099: PetscErrorCode DMPlexGetCellNumbering(DM dm, IS *globalCellNumbers)
7100: {
7101: DM_Plex *mesh = (DM_Plex*) dm->data;
7106: if (!mesh->globalCellNumbers) {DMPlexCreateCellNumbering_Internal(dm, PETSC_FALSE, &mesh->globalCellNumbers);}
7107: *globalCellNumbers = mesh->globalCellNumbers;
7108: return(0);
7109: }
7111: PetscErrorCode DMPlexCreateVertexNumbering_Internal(DM dm, PetscBool includeHybrid, IS *globalVertexNumbers)
7112: {
7113: PetscInt vStart, vEnd;
7118: DMPlexGetDepthStratum(dm, 0, &vStart, &vEnd);
7119: DMPlexCreateNumbering_Plex(dm, vStart, vEnd, 0, NULL, dm->sf, globalVertexNumbers);
7120: return(0);
7121: }
7123: /*@
7124: DMPlexGetVertexNumbering - Get a global vertex numbering for all vertices on this process
7126: Input Parameter:
7127: . dm - The DMPlex object
7129: Output Parameter:
7130: . globalVertexNumbers - Global vertex numbers for all vertices on this process
7132: Level: developer
7134: .seealso DMPlexGetCellNumbering()
7135: @*/
7136: PetscErrorCode DMPlexGetVertexNumbering(DM dm, IS *globalVertexNumbers)
7137: {
7138: DM_Plex *mesh = (DM_Plex*) dm->data;
7143: if (!mesh->globalVertexNumbers) {DMPlexCreateVertexNumbering_Internal(dm, PETSC_FALSE, &mesh->globalVertexNumbers);}
7144: *globalVertexNumbers = mesh->globalVertexNumbers;
7145: return(0);
7146: }
7148: /*@
7149: DMPlexCreatePointNumbering - Create a global numbering for all points on this process
7151: Input Parameter:
7152: . dm - The DMPlex object
7154: Output Parameter:
7155: . globalPointNumbers - Global numbers for all points on this process
7157: Level: developer
7159: .seealso DMPlexGetCellNumbering()
7160: @*/
7161: PetscErrorCode DMPlexCreatePointNumbering(DM dm, IS *globalPointNumbers)
7162: {
7163: IS nums[4];
7164: PetscInt depths[4], gdepths[4], starts[4];
7165: PetscInt depth, d, shift = 0;
7170: DMPlexGetDepth(dm, &depth);
7171: /* For unstratified meshes use dim instead of depth */
7172: if (depth < 0) {DMGetDimension(dm, &depth);}
7173: for (d = 0; d <= depth; ++d) {
7174: PetscInt end;
7176: depths[d] = depth-d;
7177: DMPlexGetDepthStratum(dm, depths[d], &starts[d], &end);
7178: if (!(starts[d]-end)) { starts[d] = depths[d] = -1; }
7179: }
7180: PetscSortIntWithArray(depth+1, starts, depths);
7181: MPIU_Allreduce(depths, gdepths, depth+1, MPIU_INT, MPI_MAX, PetscObjectComm((PetscObject) dm));
7182: for (d = 0; d <= depth; ++d) {
7183: if (starts[d] >= 0 && depths[d] != gdepths[d]) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_PLIB,"Expected depth %D, found %D",depths[d],gdepths[d]);
7184: }
7185: for (d = 0; d <= depth; ++d) {
7186: PetscInt pStart, pEnd, gsize;
7188: DMPlexGetDepthStratum(dm, gdepths[d], &pStart, &pEnd);
7189: DMPlexCreateNumbering_Plex(dm, pStart, pEnd, shift, &gsize, dm->sf, &nums[d]);
7190: shift += gsize;
7191: }
7192: ISConcatenate(PetscObjectComm((PetscObject) dm), depth+1, nums, globalPointNumbers);
7193: for (d = 0; d <= depth; ++d) {ISDestroy(&nums[d]);}
7194: return(0);
7195: }
7198: /*@
7199: DMPlexCreateRankField - Create a cell field whose value is the rank of the owner
7201: Input Parameter:
7202: . dm - The DMPlex object
7204: Output Parameter:
7205: . ranks - The rank field
7207: Options Database Keys:
7208: . -dm_partition_view - Adds the rank field into the DM output from -dm_view using the same viewer
7210: Level: intermediate
7212: .seealso: DMView()
7213: @*/
7214: PetscErrorCode DMPlexCreateRankField(DM dm, Vec *ranks)
7215: {
7216: DM rdm;
7217: PetscFE fe;
7218: PetscScalar *r;
7219: PetscMPIInt rank;
7220: PetscInt dim, cStart, cEnd, c;
7226: MPI_Comm_rank(PetscObjectComm((PetscObject) dm), &rank);
7227: DMClone(dm, &rdm);
7228: DMGetDimension(rdm, &dim);
7229: PetscFECreateDefault(PetscObjectComm((PetscObject) rdm), dim, 1, PETSC_TRUE, "PETSc___rank_", -1, &fe);
7230: PetscObjectSetName((PetscObject) fe, "rank");
7231: DMSetField(rdm, 0, NULL, (PetscObject) fe);
7232: PetscFEDestroy(&fe);
7233: DMCreateDS(rdm);
7234: DMPlexGetHeightStratum(rdm, 0, &cStart, &cEnd);
7235: DMCreateGlobalVector(rdm, ranks);
7236: PetscObjectSetName((PetscObject) *ranks, "partition");
7237: VecGetArray(*ranks, &r);
7238: for (c = cStart; c < cEnd; ++c) {
7239: PetscScalar *lr;
7241: DMPlexPointGlobalRef(rdm, c, r, &lr);
7242: if (lr) *lr = rank;
7243: }
7244: VecRestoreArray(*ranks, &r);
7245: DMDestroy(&rdm);
7246: return(0);
7247: }
7249: /*@
7250: DMPlexCreateLabelField - Create a cell field whose value is the label value for that cell
7252: Input Parameters:
7253: + dm - The DMPlex
7254: - label - The DMLabel
7256: Output Parameter:
7257: . val - The label value field
7259: Options Database Keys:
7260: . -dm_label_view - Adds the label value field into the DM output from -dm_view using the same viewer
7262: Level: intermediate
7264: .seealso: DMView()
7265: @*/
7266: PetscErrorCode DMPlexCreateLabelField(DM dm, DMLabel label, Vec *val)
7267: {
7268: DM rdm;
7269: PetscFE fe;
7270: PetscScalar *v;
7271: PetscInt dim, cStart, cEnd, c;
7278: DMClone(dm, &rdm);
7279: DMGetDimension(rdm, &dim);
7280: PetscFECreateDefault(PetscObjectComm((PetscObject) rdm), dim, 1, PETSC_TRUE, "PETSc___label_value_", -1, &fe);
7281: PetscObjectSetName((PetscObject) fe, "label_value");
7282: DMSetField(rdm, 0, NULL, (PetscObject) fe);
7283: PetscFEDestroy(&fe);
7284: DMCreateDS(rdm);
7285: DMPlexGetHeightStratum(rdm, 0, &cStart, &cEnd);
7286: DMCreateGlobalVector(rdm, val);
7287: PetscObjectSetName((PetscObject) *val, "label_value");
7288: VecGetArray(*val, &v);
7289: for (c = cStart; c < cEnd; ++c) {
7290: PetscScalar *lv;
7291: PetscInt cval;
7293: DMPlexPointGlobalRef(rdm, c, v, &lv);
7294: DMLabelGetValue(label, c, &cval);
7295: *lv = cval;
7296: }
7297: VecRestoreArray(*val, &v);
7298: DMDestroy(&rdm);
7299: return(0);
7300: }
7302: /*@
7303: DMPlexCheckSymmetry - Check that the adjacency information in the mesh is symmetric.
7305: Input Parameter:
7306: . dm - The DMPlex object
7308: Notes:
7309: This is a useful diagnostic when creating meshes programmatically.
7311: For the complete list of DMPlexCheck* functions, see DMSetFromOptions().
7313: Level: developer
7315: .seealso: DMCreate(), DMSetFromOptions()
7316: @*/
7317: PetscErrorCode DMPlexCheckSymmetry(DM dm)
7318: {
7319: PetscSection coneSection, supportSection;
7320: const PetscInt *cone, *support;
7321: PetscInt coneSize, c, supportSize, s;
7322: PetscInt pStart, pEnd, p, pp, csize, ssize;
7323: PetscBool storagecheck = PETSC_TRUE;
7324: PetscErrorCode ierr;
7328: DMViewFromOptions(dm, NULL, "-sym_dm_view");
7329: DMPlexGetConeSection(dm, &coneSection);
7330: DMPlexGetSupportSection(dm, &supportSection);
7331: /* Check that point p is found in the support of its cone points, and vice versa */
7332: DMPlexGetChart(dm, &pStart, &pEnd);
7333: for (p = pStart; p < pEnd; ++p) {
7334: DMPlexGetConeSize(dm, p, &coneSize);
7335: DMPlexGetCone(dm, p, &cone);
7336: for (c = 0; c < coneSize; ++c) {
7337: PetscBool dup = PETSC_FALSE;
7338: PetscInt d;
7339: for (d = c-1; d >= 0; --d) {
7340: if (cone[c] == cone[d]) {dup = PETSC_TRUE; break;}
7341: }
7342: DMPlexGetSupportSize(dm, cone[c], &supportSize);
7343: DMPlexGetSupport(dm, cone[c], &support);
7344: for (s = 0; s < supportSize; ++s) {
7345: if (support[s] == p) break;
7346: }
7347: if ((s >= supportSize) || (dup && (support[s+1] != p))) {
7348: PetscPrintf(PETSC_COMM_SELF, "p: %D cone: ", p);
7349: for (s = 0; s < coneSize; ++s) {
7350: PetscPrintf(PETSC_COMM_SELF, "%D, ", cone[s]);
7351: }
7352: PetscPrintf(PETSC_COMM_SELF, "\n");
7353: PetscPrintf(PETSC_COMM_SELF, "p: %D support: ", cone[c]);
7354: for (s = 0; s < supportSize; ++s) {
7355: PetscPrintf(PETSC_COMM_SELF, "%D, ", support[s]);
7356: }
7357: PetscPrintf(PETSC_COMM_SELF, "\n");
7358: if (dup) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Point %D not repeatedly found in support of repeated cone point %D", p, cone[c]);
7359: else SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Point %D not found in support of cone point %D", p, cone[c]);
7360: }
7361: }
7362: DMPlexGetTreeParent(dm, p, &pp, NULL);
7363: if (p != pp) { storagecheck = PETSC_FALSE; continue; }
7364: DMPlexGetSupportSize(dm, p, &supportSize);
7365: DMPlexGetSupport(dm, p, &support);
7366: for (s = 0; s < supportSize; ++s) {
7367: DMPlexGetConeSize(dm, support[s], &coneSize);
7368: DMPlexGetCone(dm, support[s], &cone);
7369: for (c = 0; c < coneSize; ++c) {
7370: DMPlexGetTreeParent(dm, cone[c], &pp, NULL);
7371: if (cone[c] != pp) { c = 0; break; }
7372: if (cone[c] == p) break;
7373: }
7374: if (c >= coneSize) {
7375: PetscPrintf(PETSC_COMM_SELF, "p: %D support: ", p);
7376: for (c = 0; c < supportSize; ++c) {
7377: PetscPrintf(PETSC_COMM_SELF, "%D, ", support[c]);
7378: }
7379: PetscPrintf(PETSC_COMM_SELF, "\n");
7380: PetscPrintf(PETSC_COMM_SELF, "p: %D cone: ", support[s]);
7381: for (c = 0; c < coneSize; ++c) {
7382: PetscPrintf(PETSC_COMM_SELF, "%D, ", cone[c]);
7383: }
7384: PetscPrintf(PETSC_COMM_SELF, "\n");
7385: SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Point %D not found in cone of support point %D", p, support[s]);
7386: }
7387: }
7388: }
7389: if (storagecheck) {
7390: PetscSectionGetStorageSize(coneSection, &csize);
7391: PetscSectionGetStorageSize(supportSection, &ssize);
7392: if (csize != ssize) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_SIZ, "Total cone size %D != Total support size %D", csize, ssize);
7393: }
7394: return(0);
7395: }
7397: /*
7398: For submeshes with cohesive cells (see DMPlexConstructCohesiveCells()), we allow a special case where some of the boundary of a face (edges and vertices) are not duplicated. We call these special boundary points "unsplit", since the same edge or vertex appears in both copies of the face. These unsplit points throw off our counting, so we have to explicitly account for them here.
7399: */
7400: static PetscErrorCode DMPlexCellUnsplitVertices_Private(DM dm, PetscInt c, DMPolytopeType ct, PetscInt *unsplit)
7401: {
7402: DMPolytopeType cct;
7403: PetscInt ptpoints[4];
7404: const PetscInt *cone, *ccone, *ptcone;
7405: PetscInt coneSize, cp, cconeSize, ccp, npt = 0, pt;
7406: PetscErrorCode ierr;
7409: *unsplit = 0;
7410: switch (ct) {
7411: case DM_POLYTOPE_SEG_PRISM_TENSOR:
7412: DMPlexGetCone(dm, c, &cone);
7413: DMPlexGetConeSize(dm, c, &coneSize);
7414: for (cp = 0; cp < coneSize; ++cp) {
7415: DMPlexGetCellType(dm, cone[cp], &cct);
7416: if (cct == DM_POLYTOPE_POINT_PRISM_TENSOR) ptpoints[npt++] = cone[cp];
7417: }
7418: break;
7419: case DM_POLYTOPE_TRI_PRISM_TENSOR:
7420: case DM_POLYTOPE_QUAD_PRISM_TENSOR:
7421: DMPlexGetCone(dm, c, &cone);
7422: DMPlexGetConeSize(dm, c, &coneSize);
7423: for (cp = 0; cp < coneSize; ++cp) {
7424: DMPlexGetCone(dm, cone[cp], &ccone);
7425: DMPlexGetConeSize(dm, cone[cp], &cconeSize);
7426: for (ccp = 0; ccp < cconeSize; ++ccp) {
7427: DMPlexGetCellType(dm, ccone[ccp], &cct);
7428: if (cct == DM_POLYTOPE_POINT_PRISM_TENSOR) {
7429: PetscInt p;
7430: for (p = 0; p < npt; ++p) if (ptpoints[p] == ccone[ccp]) break;
7431: if (p == npt) ptpoints[npt++] = ccone[ccp];
7432: }
7433: }
7434: }
7435: break;
7436: default: break;
7437: }
7438: for (pt = 0; pt < npt; ++pt) {
7439: DMPlexGetCone(dm, ptpoints[pt], &ptcone);
7440: if (ptcone[0] == ptcone[1]) ++(*unsplit);
7441: }
7442: return(0);
7443: }
7445: /*@
7446: DMPlexCheckSkeleton - Check that each cell has the correct number of vertices
7448: Input Parameters:
7449: + dm - The DMPlex object
7450: - cellHeight - Normally 0
7452: Notes:
7453: This is a useful diagnostic when creating meshes programmatically.
7454: Currently applicable only to homogeneous simplex or tensor meshes.
7456: For the complete list of DMPlexCheck* functions, see DMSetFromOptions().
7458: Level: developer
7460: .seealso: DMCreate(), DMSetFromOptions()
7461: @*/
7462: PetscErrorCode DMPlexCheckSkeleton(DM dm, PetscInt cellHeight)
7463: {
7464: DMPlexInterpolatedFlag interp;
7465: DMPolytopeType ct;
7466: PetscInt vStart, vEnd, cStart, cEnd, c;
7467: PetscErrorCode ierr;
7471: DMPlexIsInterpolated(dm, &interp);
7472: DMPlexGetHeightStratum(dm, cellHeight, &cStart, &cEnd);
7473: DMPlexGetDepthStratum(dm, 0, &vStart, &vEnd);
7474: for (c = cStart; c < cEnd; ++c) {
7475: PetscInt *closure = NULL;
7476: PetscInt coneSize, closureSize, cl, Nv = 0;
7478: DMPlexGetCellType(dm, c, &ct);
7479: if ((PetscInt) ct < 0) SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Cell %D has no cell type", c);
7480: if (ct == DM_POLYTOPE_UNKNOWN) continue;
7481: if (interp == DMPLEX_INTERPOLATED_FULL) {
7482: DMPlexGetConeSize(dm, c, &coneSize);
7483: if (coneSize != DMPolytopeTypeGetConeSize(ct)) SETERRQ4(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Cell %D of type %s has cone size %D != %D", c, DMPolytopeTypes[ct], coneSize, DMPolytopeTypeGetConeSize(ct));
7484: }
7485: DMPlexGetTransitiveClosure(dm, c, PETSC_TRUE, &closureSize, &closure);
7486: for (cl = 0; cl < closureSize*2; cl += 2) {
7487: const PetscInt p = closure[cl];
7488: if ((p >= vStart) && (p < vEnd)) ++Nv;
7489: }
7490: DMPlexRestoreTransitiveClosure(dm, c, PETSC_TRUE, &closureSize, &closure);
7491: /* Special Case: Tensor faces with identified vertices */
7492: if (Nv < DMPolytopeTypeGetNumVertices(ct)) {
7493: PetscInt unsplit;
7495: DMPlexCellUnsplitVertices_Private(dm, c, ct, &unsplit);
7496: if (Nv + unsplit == DMPolytopeTypeGetNumVertices(ct)) continue;
7497: }
7498: if (Nv != DMPolytopeTypeGetNumVertices(ct)) SETERRQ4(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Cell %D of type %s has %D vertices != %D", c, DMPolytopeTypes[ct], Nv, DMPolytopeTypeGetNumVertices(ct));
7499: }
7500: return(0);
7501: }
7503: /*@
7504: DMPlexCheckFaces - Check that the faces of each cell give a vertex order this is consistent with what we expect from the cell type
7506: Not Collective
7508: Input Parameters:
7509: + dm - The DMPlex object
7510: - cellHeight - Normally 0
7512: Notes:
7513: This is a useful diagnostic when creating meshes programmatically.
7514: This routine is only relevant for meshes that are fully interpolated across all ranks.
7515: It will error out if a partially interpolated mesh is given on some rank.
7516: It will do nothing for locally uninterpolated mesh (as there is nothing to check).
7518: For the complete list of DMPlexCheck* functions, see DMSetFromOptions().
7520: Level: developer
7522: .seealso: DMCreate(), DMPlexGetVTKCellHeight(), DMSetFromOptions()
7523: @*/
7524: PetscErrorCode DMPlexCheckFaces(DM dm, PetscInt cellHeight)
7525: {
7526: PetscInt dim, depth, vStart, vEnd, cStart, cEnd, c, h;
7528: DMPlexInterpolatedFlag interpEnum;
7532: DMPlexIsInterpolated(dm, &interpEnum);
7533: if (interpEnum == DMPLEX_INTERPOLATED_NONE) return(0);
7534: if (interpEnum == DMPLEX_INTERPOLATED_PARTIAL) {
7535: PetscMPIInt rank;
7536: MPI_Comm comm;
7538: PetscObjectGetComm((PetscObject) dm, &comm);
7539: MPI_Comm_rank(comm, &rank);
7540: SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_SUP, "Mesh is only partially interpolated on rank %d, this is currently not supported", rank);
7541: }
7543: DMGetDimension(dm, &dim);
7544: DMPlexGetDepth(dm, &depth);
7545: DMPlexGetDepthStratum(dm, 0, &vStart, &vEnd);
7546: for (h = cellHeight; h < PetscMin(depth, dim); ++h) {
7547: DMPlexGetHeightStratum(dm, h, &cStart, &cEnd);
7548: for (c = cStart; c < cEnd; ++c) {
7549: const PetscInt *cone, *ornt, *faceSizes, *faces;
7550: const DMPolytopeType *faceTypes;
7551: DMPolytopeType ct;
7552: PetscInt numFaces, coneSize, f;
7553: PetscInt *closure = NULL, closureSize, cl, numCorners = 0, fOff = 0, unsplit;
7555: DMPlexGetCellType(dm, c, &ct);
7556: DMPlexCellUnsplitVertices_Private(dm, c, ct, &unsplit);
7557: if (unsplit) continue;
7558: DMPlexGetConeSize(dm, c, &coneSize);
7559: DMPlexGetCone(dm, c, &cone);
7560: DMPlexGetConeOrientation(dm, c, &ornt);
7561: DMPlexGetTransitiveClosure(dm, c, PETSC_TRUE, &closureSize, &closure);
7562: for (cl = 0; cl < closureSize*2; cl += 2) {
7563: const PetscInt p = closure[cl];
7564: if ((p >= vStart) && (p < vEnd)) closure[numCorners++] = p;
7565: }
7566: DMPlexGetRawFaces_Internal(dm, ct, closure, &numFaces, &faceTypes, &faceSizes, &faces);
7567: if (coneSize != numFaces) SETERRQ4(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Cell %D of type %s has %D faces but should have %D", c, DMPolytopeTypes[ct], coneSize, numFaces);
7568: for (f = 0; f < numFaces; ++f) {
7569: DMPolytopeType fct;
7570: PetscInt *fclosure = NULL, fclosureSize, cl, fnumCorners = 0, v;
7572: DMPlexGetCellType(dm, cone[f], &fct);
7573: DMPlexGetTransitiveClosure_Internal(dm, cone[f], ornt[f], PETSC_TRUE, &fclosureSize, &fclosure);
7574: for (cl = 0; cl < fclosureSize*2; cl += 2) {
7575: const PetscInt p = fclosure[cl];
7576: if ((p >= vStart) && (p < vEnd)) fclosure[fnumCorners++] = p;
7577: }
7578: if (fnumCorners != faceSizes[f]) SETERRQ7(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Face %D of type %s (cone idx %D) of cell %D of type %s has %D vertices but should have %D", cone[f], DMPolytopeTypes[fct], f, c, DMPolytopeTypes[ct], fnumCorners, faceSizes[f]);
7579: for (v = 0; v < fnumCorners; ++v) {
7580: if (fclosure[v] != faces[fOff+v]) SETERRQ8(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Face %D of type %s (cone idx %d) of cell %D of type %s vertex %D, %D != %D", cone[f], DMPolytopeTypes[fct], f, c, DMPolytopeTypes[ct], v, fclosure[v], faces[fOff+v]);
7581: }
7582: DMPlexRestoreTransitiveClosure(dm, cone[f], PETSC_TRUE, &fclosureSize, &fclosure);
7583: fOff += faceSizes[f];
7584: }
7585: DMPlexRestoreRawFaces_Internal(dm, ct, closure, &numFaces, &faceTypes, &faceSizes, &faces);
7586: DMPlexRestoreTransitiveClosure(dm, c, PETSC_TRUE, &closureSize, &closure);
7587: }
7588: }
7589: return(0);
7590: }
7592: /*@
7593: DMPlexCheckGeometry - Check the geometry of mesh cells
7595: Input Parameter:
7596: . dm - The DMPlex object
7598: Notes:
7599: This is a useful diagnostic when creating meshes programmatically.
7601: For the complete list of DMPlexCheck* functions, see DMSetFromOptions().
7603: Level: developer
7605: .seealso: DMCreate(), DMSetFromOptions()
7606: @*/
7607: PetscErrorCode DMPlexCheckGeometry(DM dm)
7608: {
7609: PetscReal detJ, J[9], refVol = 1.0;
7610: PetscReal vol;
7611: PetscBool periodic;
7612: PetscInt dim, depth, dE, d, cStart, cEnd, c;
7616: DMGetDimension(dm, &dim);
7617: DMGetCoordinateDim(dm, &dE);
7618: if (dim != dE) return(0);
7619: DMPlexGetDepth(dm, &depth);
7620: DMGetPeriodicity(dm, &periodic, NULL, NULL, NULL);
7621: for (d = 0; d < dim; ++d) refVol *= 2.0;
7622: DMPlexGetHeightStratum(dm, 0, &cStart, &cEnd);
7623: for (c = cStart; c < cEnd; ++c) {
7624: DMPolytopeType ct;
7625: PetscInt unsplit;
7626: PetscBool ignoreZeroVol = PETSC_FALSE;
7628: DMPlexGetCellType(dm, c, &ct);
7629: switch (ct) {
7630: case DM_POLYTOPE_SEG_PRISM_TENSOR:
7631: case DM_POLYTOPE_TRI_PRISM_TENSOR:
7632: case DM_POLYTOPE_QUAD_PRISM_TENSOR:
7633: ignoreZeroVol = PETSC_TRUE; break;
7634: default: break;
7635: }
7636: switch (ct) {
7637: case DM_POLYTOPE_TRI_PRISM:
7638: case DM_POLYTOPE_TRI_PRISM_TENSOR:
7639: case DM_POLYTOPE_QUAD_PRISM_TENSOR:
7640: continue;
7641: default: break;
7642: }
7643: DMPlexCellUnsplitVertices_Private(dm, c, ct, &unsplit);
7644: if (unsplit) continue;
7645: DMPlexComputeCellGeometryFEM(dm, c, NULL, NULL, J, NULL, &detJ);
7646: if (detJ < -PETSC_SMALL || (detJ <= 0.0 && !ignoreZeroVol)) SETERRQ3(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Mesh cell %D of type %s is inverted, |J| = %g", c, DMPolytopeTypes[ct], (double) detJ);
7647: PetscInfo2(dm, "Cell %D FEM Volume %g\n", c, (double) detJ*refVol);
7648: if (depth > 1 && !periodic) {
7649: DMPlexComputeCellGeometryFVM(dm, c, &vol, NULL, NULL);
7650: if (vol < -PETSC_SMALL || (vol <= 0.0 && !ignoreZeroVol)) SETERRQ3(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Mesh cell %D of type %s is inverted, vol = %g", c, DMPolytopeTypes[ct], (double) vol);
7651: PetscInfo2(dm, "Cell %D FVM Volume %g\n", c, (double) vol);
7652: }
7653: }
7654: return(0);
7655: }
7657: /*@
7658: DMPlexCheckPointSF - Check that several necessary conditions are met for the point SF of this plex.
7660: Input Parameters:
7661: . dm - The DMPlex object
7663: Notes:
7664: This is mainly intended for debugging/testing purposes.
7665: It currently checks only meshes with no partition overlapping.
7667: For the complete list of DMPlexCheck* functions, see DMSetFromOptions().
7669: Level: developer
7671: .seealso: DMGetPointSF(), DMSetFromOptions()
7672: @*/
7673: PetscErrorCode DMPlexCheckPointSF(DM dm)
7674: {
7675: PetscSF pointSF;
7676: PetscInt cellHeight, cStart, cEnd, l, nleaves, nroots, overlap;
7677: const PetscInt *locals, *rootdegree;
7678: PetscBool distributed;
7679: PetscErrorCode ierr;
7683: DMGetPointSF(dm, &pointSF);
7684: DMPlexIsDistributed(dm, &distributed);
7685: if (!distributed) return(0);
7686: DMPlexGetOverlap(dm, &overlap);
7687: if (overlap) {
7688: PetscPrintf(PetscObjectComm((PetscObject)dm), "Warning: DMPlexCheckPointSF() is currently not implemented for meshes with partition overlapping");
7689: return(0);
7690: }
7691: if (!pointSF) SETERRQ(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONGSTATE, "This DMPlex is distributed but does not have PointSF attached");
7692: PetscSFGetGraph(pointSF, &nroots, &nleaves, &locals, NULL);
7693: if (nroots < 0) SETERRQ(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONGSTATE, "This DMPlex is distributed but its PointSF has no graph set");
7694: PetscSFComputeDegreeBegin(pointSF, &rootdegree);
7695: PetscSFComputeDegreeEnd(pointSF, &rootdegree);
7697: /* 1) check there are no faces in 2D, cells in 3D, in interface */
7698: DMPlexGetVTKCellHeight(dm, &cellHeight);
7699: DMPlexGetHeightStratum(dm, cellHeight, &cStart, &cEnd);
7700: for (l = 0; l < nleaves; ++l) {
7701: const PetscInt point = locals[l];
7703: if (point >= cStart && point < cEnd) SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Point SF contains %D which is a cell", point);
7704: }
7706: /* 2) if some point is in interface, then all its cone points must be also in interface (either as leaves or roots) */
7707: for (l = 0; l < nleaves; ++l) {
7708: const PetscInt point = locals[l];
7709: const PetscInt *cone;
7710: PetscInt coneSize, c, idx;
7712: DMPlexGetConeSize(dm, point, &coneSize);
7713: DMPlexGetCone(dm, point, &cone);
7714: for (c = 0; c < coneSize; ++c) {
7715: if (!rootdegree[cone[c]]) {
7716: PetscFindInt(cone[c], nleaves, locals, &idx);
7717: if (idx < 0) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Point SF contains %D but not %D from its cone", point, cone[c]);
7718: }
7719: }
7720: }
7721: return(0);
7722: }
7724: typedef struct cell_stats
7725: {
7726: PetscReal min, max, sum, squaresum;
7727: PetscInt count;
7728: } cell_stats_t;
7730: static void MPIAPI cell_stats_reduce(void *a, void *b, int * len, MPI_Datatype *datatype)
7731: {
7732: PetscInt i, N = *len;
7734: for (i = 0; i < N; i++) {
7735: cell_stats_t *A = (cell_stats_t *) a;
7736: cell_stats_t *B = (cell_stats_t *) b;
7738: B->min = PetscMin(A->min,B->min);
7739: B->max = PetscMax(A->max,B->max);
7740: B->sum += A->sum;
7741: B->squaresum += A->squaresum;
7742: B->count += A->count;
7743: }
7744: }
7746: /*@
7747: DMPlexCheckCellShape - Checks the Jacobian of the mapping from reference to real cells and computes some minimal statistics.
7749: Collective on dm
7751: Input Parameters:
7752: + dm - The DMPlex object
7753: . output - If true, statistics will be displayed on stdout
7754: - condLimit - Display all cells above this condition number, or PETSC_DETERMINE for no cell output
7756: Notes:
7757: This is mainly intended for debugging/testing purposes.
7759: For the complete list of DMPlexCheck* functions, see DMSetFromOptions().
7761: Level: developer
7763: .seealso: DMSetFromOptions(), DMPlexComputeOrthogonalQuality()
7764: @*/
7765: PetscErrorCode DMPlexCheckCellShape(DM dm, PetscBool output, PetscReal condLimit)
7766: {
7767: DM dmCoarse;
7768: cell_stats_t stats, globalStats;
7769: MPI_Comm comm = PetscObjectComm((PetscObject)dm);
7770: PetscReal *J, *invJ, min = 0, max = 0, mean = 0, stdev = 0;
7771: PetscReal limit = condLimit > 0 ? condLimit : PETSC_MAX_REAL;
7772: PetscInt cdim, cStart, cEnd, c, eStart, eEnd, count = 0;
7773: PetscMPIInt rank,size;
7778: stats.min = PETSC_MAX_REAL;
7779: stats.max = PETSC_MIN_REAL;
7780: stats.sum = stats.squaresum = 0.;
7781: stats.count = 0;
7783: MPI_Comm_size(comm, &size);
7784: MPI_Comm_rank(comm, &rank);
7785: DMGetCoordinateDim(dm,&cdim);
7786: PetscMalloc2(PetscSqr(cdim), &J, PetscSqr(cdim), &invJ);
7787: DMPlexGetSimplexOrBoxCells(dm,0,&cStart,&cEnd);
7788: DMPlexGetDepthStratum(dm,1,&eStart,&eEnd);
7789: for (c = cStart; c < cEnd; c++) {
7790: PetscInt i;
7791: PetscReal frobJ = 0., frobInvJ = 0., cond2, cond, detJ;
7793: DMPlexComputeCellGeometryAffineFEM(dm,c,NULL,J,invJ,&detJ);
7794: if (detJ < 0.0) SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Mesh cell %D is inverted", c);
7795: for (i = 0; i < PetscSqr(cdim); ++i) {
7796: frobJ += J[i] * J[i];
7797: frobInvJ += invJ[i] * invJ[i];
7798: }
7799: cond2 = frobJ * frobInvJ;
7800: cond = PetscSqrtReal(cond2);
7802: stats.min = PetscMin(stats.min,cond);
7803: stats.max = PetscMax(stats.max,cond);
7804: stats.sum += cond;
7805: stats.squaresum += cond2;
7806: stats.count++;
7807: if (output && cond > limit) {
7808: PetscSection coordSection;
7809: Vec coordsLocal;
7810: PetscScalar *coords = NULL;
7811: PetscInt Nv, d, clSize, cl, *closure = NULL;
7813: DMGetCoordinatesLocal(dm, &coordsLocal);
7814: DMGetCoordinateSection(dm, &coordSection);
7815: DMPlexVecGetClosure(dm, coordSection, coordsLocal, c, &Nv, &coords);
7816: PetscSynchronizedPrintf(comm, "[%d] Cell %D cond %g\n", rank, c, (double) cond);
7817: for (i = 0; i < Nv/cdim; ++i) {
7818: PetscSynchronizedPrintf(comm, " Vertex %D: (", i);
7819: for (d = 0; d < cdim; ++d) {
7820: if (d > 0) {PetscSynchronizedPrintf(comm, ", ");}
7821: PetscSynchronizedPrintf(comm, "%g", (double) PetscRealPart(coords[i*cdim+d]));
7822: }
7823: PetscSynchronizedPrintf(comm, ")\n");
7824: }
7825: DMPlexGetTransitiveClosure(dm, c, PETSC_TRUE, &clSize, &closure);
7826: for (cl = 0; cl < clSize*2; cl += 2) {
7827: const PetscInt edge = closure[cl];
7829: if ((edge >= eStart) && (edge < eEnd)) {
7830: PetscReal len;
7832: DMPlexComputeCellGeometryFVM(dm, edge, &len, NULL, NULL);
7833: PetscSynchronizedPrintf(comm, " Edge %D: length %g\n", edge, (double) len);
7834: }
7835: }
7836: DMPlexRestoreTransitiveClosure(dm, c, PETSC_TRUE, &clSize, &closure);
7837: DMPlexVecRestoreClosure(dm, coordSection, coordsLocal, c, &Nv, &coords);
7838: }
7839: }
7840: if (output) {PetscSynchronizedFlush(comm, NULL);}
7842: if (size > 1) {
7843: PetscMPIInt blockLengths[2] = {4,1};
7844: MPI_Aint blockOffsets[2] = {offsetof(cell_stats_t,min),offsetof(cell_stats_t,count)};
7845: MPI_Datatype blockTypes[2] = {MPIU_REAL,MPIU_INT}, statType;
7846: MPI_Op statReduce;
7848: MPI_Type_create_struct(2,blockLengths,blockOffsets,blockTypes,&statType);
7849: MPI_Type_commit(&statType);
7850: MPI_Op_create(cell_stats_reduce, PETSC_TRUE, &statReduce);
7851: MPI_Reduce(&stats,&globalStats,1,statType,statReduce,0,comm);
7852: MPI_Op_free(&statReduce);
7853: MPI_Type_free(&statType);
7854: } else {
7855: PetscArraycpy(&globalStats,&stats,1);
7856: }
7857: if (!rank) {
7858: count = globalStats.count;
7859: min = globalStats.min;
7860: max = globalStats.max;
7861: mean = globalStats.sum / globalStats.count;
7862: stdev = globalStats.count > 1 ? PetscSqrtReal(PetscMax((globalStats.squaresum - globalStats.count * mean * mean) / (globalStats.count - 1),0)) : 0.0;
7863: }
7865: if (output) {
7866: PetscPrintf(comm,"Mesh with %D cells, shape condition numbers: min = %g, max = %g, mean = %g, stddev = %g\n", count, (double) min, (double) max, (double) mean, (double) stdev);
7867: }
7868: PetscFree2(J,invJ);
7870: DMGetCoarseDM(dm,&dmCoarse);
7871: if (dmCoarse) {
7872: PetscBool isplex;
7874: PetscObjectTypeCompare((PetscObject)dmCoarse,DMPLEX,&isplex);
7875: if (isplex) {
7876: DMPlexCheckCellShape(dmCoarse,output,condLimit);
7877: }
7878: }
7879: return(0);
7880: }
7882: /*@
7883: DMPlexComputeOrthogonalQuality - Compute cell-wise orthogonal quality mesh statistic. Optionally tags all cells with
7884: orthogonal quality below given tolerance.
7886: Collective
7888: Input Parameters:
7889: + dm - The DMPlex object
7890: . fv - Optional PetscFV object for pre-computed cell/face centroid information
7891: - atol - [0, 1] Absolute tolerance for tagging cells.
7893: Output Parameters:
7894: + OrthQual - Vec containing orthogonal quality per cell
7895: - OrthQualLabel - DMLabel tagging cells below atol with DM_ADAPT_REFINE
7897: Options Database Keys:
7898: + -dm_plex_orthogonal_quality_label_view - view OrthQualLabel if label is requested. Currently only PETSCVIEWERASCII is
7899: supported.
7900: - -dm_plex_orthogonal_quality_vec_view - view OrthQual vector.
7902: Notes:
7903: Orthogonal quality is given by the following formula:
7905: \min \left[ \frac{A_i \cdot f_i}{\|A_i\| \|f_i\|} , \frac{A_i \cdot c_i}{\|A_i\| \|c_i\|} \right]
7907: Where A_i is the i'th face-normal vector, f_i is the vector from the cell centroid to the i'th face centroid, and c_i
7908: is the vector from the current cells centroid to the centroid of its i'th neighbor (which shares a face with the
7909: current cell). This computes the vector similarity between each cell face and its corresponding neighbor centroid by
7910: calculating the cosine of the angle between these vectors.
7912: Orthogonal quality ranges from 1 (best) to 0 (worst).
7914: This routine is mainly useful for FVM, however is not restricted to only FVM. The PetscFV object is optionally used to check for
7915: pre-computed FVM cell data, but if it is not passed in then this data will be computed.
7917: Cells are tagged if they have an orthogonal quality less than or equal to the absolute tolerance.
7919: Level: intermediate
7921: .seealso: DMPlexCheckCellShape(), DMCreateLabel()
7922: @*/
7923: PetscErrorCode DMPlexComputeOrthogonalQuality(DM dm, PetscFV fv, PetscReal atol, Vec *OrthQual, DMLabel *OrthQualLabel)
7924: {
7925: PetscInt nc, cellHeight, cStart, cEnd, cell;
7926: const PetscScalar *cellGeomArr, *faceGeomArr;
7927: MPI_Comm comm;
7928: Vec cellgeom, facegeom;
7929: DM dmFace, dmCell;
7930: IS glob;
7931: DMPlexInterpolatedFlag interpFlag;
7932: ISLocalToGlobalMapping ltog;
7933: PetscViewer vwr;
7934: PetscErrorCode ierr;
7939: PetscObjectGetComm((PetscObject) dm, &comm);
7940: DMGetDimension(dm, &nc);
7941: if (nc < 2) {
7942: SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONGSTATE, "DM must have dimension >= 2 (current %D)", nc);
7943: }
7944: DMPlexIsInterpolated(dm, &interpFlag);
7945: if (interpFlag != DMPLEX_INTERPOLATED_FULL) {
7946: PetscMPIInt rank;
7948: MPI_Comm_rank(comm, &rank);
7949: SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONGSTATE, "DM must be fully interpolated, DM on rank %d is not fully interpolated", rank);
7950: }
7951: if (OrthQualLabel) {
7953: DMCreateLabel(dm, "Orthogonal_Quality");
7954: DMGetLabel(dm, "Orthogonal_Quality", OrthQualLabel);
7955: } else {
7956: *OrthQualLabel = NULL;
7957: }
7959: DMPlexGetVTKCellHeight(dm, &cellHeight);
7960: DMPlexGetHeightStratum(dm, cellHeight, &cStart, &cEnd);
7961: DMPlexCreateCellNumbering_Internal(dm, PETSC_TRUE, &glob);
7962: ISLocalToGlobalMappingCreateIS(glob, <og);
7963: ISLocalToGlobalMappingSetType(ltog, ISLOCALTOGLOBALMAPPINGHASH);
7964: VecCreate(comm, OrthQual);
7965: VecSetType(*OrthQual, VECSTANDARD);
7966: VecSetSizes(*OrthQual, cEnd-cStart, PETSC_DETERMINE);
7967: VecSetLocalToGlobalMapping(*OrthQual, ltog);
7968: VecSetUp(*OrthQual);
7969: ISDestroy(&glob);
7970: ISLocalToGlobalMappingDestroy(<og);
7971: DMPlexGetDataFVM(dm, fv, &cellgeom, &facegeom, NULL);
7972: VecGetArrayRead(cellgeom, &cellGeomArr);
7973: VecGetArrayRead(facegeom, &faceGeomArr);
7974: VecGetDM(cellgeom, &dmCell);
7975: VecGetDM(facegeom, &dmFace);
7976: for (cell = cStart; cell < cEnd; cell++) {
7977: PetscInt cellneigh, cellneighiter = 0, nf, adjSize = PETSC_DETERMINE, ix = cell-cStart;
7978: const PetscInt *cone;
7979: PetscInt cellarr[2], *adj = NULL;
7980: PetscScalar *cArr, *fArr;
7981: PetscReal minvalc = 1.0, minvalf = 1.0, OQ;
7982: PetscFVCellGeom *cg;
7984: cellarr[0] = cell;
7985: /* Make indexing into cellGeom easier */
7986: DMPlexPointLocalRead(dmCell, cell, cellGeomArr, &cg);
7987: DMPlexGetAdjacency_Internal(dm, cell, PETSC_TRUE, PETSC_FALSE, PETSC_FALSE, &adjSize, &adj);
7988: DMPlexGetConeSize(dm, cell, &nf);
7989: DMPlexGetCone(dm, cell, &cone);
7990: /* Technically 1 too big, but easier than fiddling with empty adjacency array */
7991: PetscCalloc2(adjSize, &cArr, adjSize, &fArr);
7992: for (cellneigh = 0; cellneigh < adjSize; cellneigh++) {
7993: PetscInt numcovpts, i, neigh = adj[cellneigh];
7994: const PetscInt *covpts;
7995: PetscReal normci = 0, normfi = 0, normai = 0;
7996: PetscReal *ci, *fi, *Ai;
7997: PetscFVCellGeom *cgneigh;
7998: PetscFVFaceGeom *fg;
8000: /* Don't count ourselves in the neighbor list */
8001: if (neigh == cell) continue;
8002: PetscMalloc3(nc, &ci, nc, &fi, nc, &Ai);
8003: DMPlexPointLocalRead(dmCell, neigh, cellGeomArr, &cgneigh);
8004: cellarr[1] = neigh;
8005: DMPlexGetMeet(dm, 2, cellarr, &numcovpts, &covpts);
8006: DMPlexPointLocalRead(dmFace, covpts[0], faceGeomArr, &fg);
8007: DMPlexRestoreMeet(dm, 2, cellarr, &numcovpts, &covpts);
8009: /* Compute c_i, f_i and their norms */
8010: for (i = 0; i < nc; i++) {
8011: ci[i] = cgneigh->centroid[i] - cg->centroid[i];
8012: fi[i] = fg->centroid[i] - cg->centroid[i];
8013: Ai[i] = fg->normal[i];
8014: normci += PetscPowScalar(ci[i], 2);
8015: normfi += PetscPowScalar(fi[i], 2);
8016: normai += PetscPowScalar(Ai[i], 2);
8017: }
8018: normci = PetscSqrtScalar(normci);
8019: normfi = PetscSqrtScalar(normfi);
8020: normai = PetscSqrtScalar(normai);
8022: /* Normalize and compute for each face-cell-normal pair */
8023: for (i = 0; i < nc; i++) {
8024: ci[i] = ci[i]/normci;
8025: fi[i] = fi[i]/normfi;
8026: Ai[i] = Ai[i]/normai;
8027: /* PetscAbs because I don't know if normals are guaranteed to point out */
8028: cArr[cellneighiter] += PetscAbs(Ai[i]*ci[i]);
8029: fArr[cellneighiter] += PetscAbs(Ai[i]*fi[i]);
8030: }
8031: if (PetscRealPart(cArr[cellneighiter]) < minvalc) {
8032: minvalc = PetscRealPart(cArr[cellneighiter]);
8033: }
8034: if (PetscRealPart(fArr[cellneighiter]) < minvalf) {
8035: minvalf = PetscRealPart(fArr[cellneighiter]);
8036: }
8037: cellneighiter++;
8038: PetscFree3(ci, fi, Ai);
8039: }
8040: PetscFree(adj);
8041: PetscFree2(cArr, fArr);
8042: /* Defer to cell if they're equal */
8043: OQ = PetscMin(minvalf, minvalc);
8044: if (OrthQualLabel) {
8045: if (OQ <= atol) {
8046: DMLabelSetValue(*OrthQualLabel, cell, DM_ADAPT_REFINE);
8047: }
8048: }
8049: VecSetValuesLocal(*OrthQual, 1, (const PetscInt *) &ix, (const PetscScalar *) &OQ, INSERT_VALUES);
8050: }
8051: VecAssemblyBegin(*OrthQual);
8052: VecAssemblyEnd(*OrthQual);
8053: VecRestoreArrayRead(cellgeom, &cellGeomArr);
8054: VecRestoreArrayRead(facegeom, &faceGeomArr);
8055: PetscOptionsGetViewer(comm, NULL, NULL, "-dm_plex_orthogonal_quality_label_view", &vwr, NULL, NULL);
8056: if (OrthQualLabel) {
8057: if (vwr) {
8058: DMLabelView(*OrthQualLabel, vwr);
8059: }
8060: }
8061: PetscViewerDestroy(&vwr);
8062: VecViewFromOptions(*OrthQual, NULL, "-dm_plex_orthogonal_quality_vec_view");
8063: return(0);
8064: }
8066: /* Pointwise interpolation
8067: Just code FEM for now
8068: u^f = I u^c
8069: sum_k u^f_k phi^f_k = I sum_j u^c_j phi^c_j
8070: u^f_i = sum_j psi^f_i I phi^c_j u^c_j
8071: I_{ij} = psi^f_i phi^c_j
8072: */
8073: PetscErrorCode DMCreateInterpolation_Plex(DM dmCoarse, DM dmFine, Mat *interpolation, Vec *scaling)
8074: {
8075: PetscSection gsc, gsf;
8076: PetscInt m, n;
8077: void *ctx;
8078: DM cdm;
8079: PetscBool regular, ismatis, isRefined = dmCoarse->data == dmFine->data ? PETSC_FALSE : PETSC_TRUE;
8083: DMGetGlobalSection(dmFine, &gsf);
8084: PetscSectionGetConstrainedStorageSize(gsf, &m);
8085: DMGetGlobalSection(dmCoarse, &gsc);
8086: PetscSectionGetConstrainedStorageSize(gsc, &n);
8088: PetscStrcmp(dmCoarse->mattype, MATIS, &ismatis);
8089: MatCreate(PetscObjectComm((PetscObject) dmCoarse), interpolation);
8090: MatSetSizes(*interpolation, m, n, PETSC_DETERMINE, PETSC_DETERMINE);
8091: MatSetType(*interpolation, ismatis ? MATAIJ : dmCoarse->mattype);
8092: DMGetApplicationContext(dmFine, &ctx);
8094: DMGetCoarseDM(dmFine, &cdm);
8095: DMPlexGetRegularRefinement(dmFine, ®ular);
8096: if (!isRefined || (regular && cdm == dmCoarse)) {DMPlexComputeInterpolatorNested(dmCoarse, dmFine, isRefined, *interpolation, ctx);}
8097: else {DMPlexComputeInterpolatorGeneral(dmCoarse, dmFine, *interpolation, ctx);}
8098: MatViewFromOptions(*interpolation, NULL, "-interp_mat_view");
8099: if (scaling) {
8100: /* Use naive scaling */
8101: DMCreateInterpolationScale(dmCoarse, dmFine, *interpolation, scaling);
8102: }
8103: return(0);
8104: }
8106: PetscErrorCode DMCreateInjection_Plex(DM dmCoarse, DM dmFine, Mat *mat)
8107: {
8109: VecScatter ctx;
8112: DMPlexComputeInjectorFEM(dmCoarse, dmFine, &ctx, NULL);
8113: MatCreateScatter(PetscObjectComm((PetscObject)ctx), ctx, mat);
8114: VecScatterDestroy(&ctx);
8115: return(0);
8116: }
8118: static void g0_identity_private(PetscInt dim, PetscInt Nf, PetscInt NfAux,
8119: const PetscInt uOff[], const PetscInt uOff_x[], const PetscScalar u[], const PetscScalar u_t[], const PetscScalar u_x[],
8120: const PetscInt aOff[], const PetscInt aOff_x[], const PetscScalar a[], const PetscScalar a_t[], const PetscScalar a_x[],
8121: PetscReal t, PetscReal u_tShift, const PetscReal x[], PetscInt numConstants, const PetscScalar constants[], PetscScalar g0[])
8122: {
8123: g0[0] = 1.0;
8124: }
8126: PetscErrorCode DMCreateMassMatrix_Plex(DM dmCoarse, DM dmFine, Mat *mass)
8127: {
8128: PetscSection gsc, gsf;
8129: PetscInt m, n;
8130: void *ctx;
8131: DM cdm;
8132: PetscBool regular;
8136: if (dmFine == dmCoarse) {
8137: DM dmc;
8138: PetscDS ds;
8139: Vec u;
8140: IS cellIS;
8141: PetscInt depth;
8143: DMClone(dmFine, &dmc);
8144: DMCopyDisc(dmFine, dmc);
8145: DMGetDS(dmc, &ds);
8146: PetscDSSetJacobian(ds, 0, 0, g0_identity_private, NULL, NULL, NULL);
8147: DMCreateMatrix(dmc, mass);
8148: DMGetGlobalVector(dmc, &u);
8149: DMPlexGetDepth(dmc, &depth);
8150: DMGetStratumIS(dmc, "depth", depth, &cellIS);
8151: MatZeroEntries(*mass);
8152: DMPlexComputeJacobian_Internal(dmc, cellIS, 0.0, 0.0, u, NULL, *mass, *mass, NULL);
8153: ISDestroy(&cellIS);
8154: DMRestoreGlobalVector(dmc, &u);
8155: DMDestroy(&dmc);
8156: } else {
8157: DMGetGlobalSection(dmFine, &gsf);
8158: PetscSectionGetConstrainedStorageSize(gsf, &m);
8159: DMGetGlobalSection(dmCoarse, &gsc);
8160: PetscSectionGetConstrainedStorageSize(gsc, &n);
8162: MatCreate(PetscObjectComm((PetscObject) dmCoarse), mass);
8163: MatSetSizes(*mass, m, n, PETSC_DETERMINE, PETSC_DETERMINE);
8164: MatSetType(*mass, dmCoarse->mattype);
8165: DMGetApplicationContext(dmFine, &ctx);
8167: DMGetCoarseDM(dmFine, &cdm);
8168: DMPlexGetRegularRefinement(dmFine, ®ular);
8169: if (regular && cdm == dmCoarse) {DMPlexComputeMassMatrixNested(dmCoarse, dmFine, *mass, ctx);}
8170: else {DMPlexComputeMassMatrixGeneral(dmCoarse, dmFine, *mass, ctx);}
8171: }
8172: MatViewFromOptions(*mass, NULL, "-mass_mat_view");
8173: return(0);
8174: }
8176: /*@
8177: DMPlexGetRegularRefinement - Get the flag indicating that this mesh was obtained by regular refinement from its coarse mesh
8179: Input Parameter:
8180: . dm - The DMPlex object
8182: Output Parameter:
8183: . regular - The flag
8185: Level: intermediate
8187: .seealso: DMPlexSetRegularRefinement()
8188: @*/
8189: PetscErrorCode DMPlexGetRegularRefinement(DM dm, PetscBool *regular)
8190: {
8194: *regular = ((DM_Plex *) dm->data)->regularRefinement;
8195: return(0);
8196: }
8198: /*@
8199: DMPlexSetRegularRefinement - Set the flag indicating that this mesh was obtained by regular refinement from its coarse mesh
8201: Input Parameters:
8202: + dm - The DMPlex object
8203: - regular - The flag
8205: Level: intermediate
8207: .seealso: DMPlexGetRegularRefinement()
8208: @*/
8209: PetscErrorCode DMPlexSetRegularRefinement(DM dm, PetscBool regular)
8210: {
8213: ((DM_Plex *) dm->data)->regularRefinement = regular;
8214: return(0);
8215: }
8217: /*@
8218: DMPlexGetCellRefinerType - Get the strategy for refining a cell
8220: Input Parameter:
8221: . dm - The DMPlex object
8223: Output Parameter:
8224: . cr - The strategy number
8226: Level: intermediate
8228: .seealso: DMPlexSetCellRefinerType(), DMPlexSetRegularRefinement()
8229: @*/
8230: PetscErrorCode DMPlexGetCellRefinerType(DM dm, DMPlexCellRefinerType *cr)
8231: {
8235: *cr = ((DM_Plex *) dm->data)->cellRefiner;
8236: return(0);
8237: }
8239: /*@
8240: DMPlexSetCellRefinerType - Set the strategy for refining a cell
8242: Input Parameters:
8243: + dm - The DMPlex object
8244: - cr - The strategy number
8246: Level: intermediate
8248: .seealso: DMPlexGetCellRefinerType(), DMPlexGetRegularRefinement()
8249: @*/
8250: PetscErrorCode DMPlexSetCellRefinerType(DM dm, DMPlexCellRefinerType cr)
8251: {
8254: ((DM_Plex *) dm->data)->cellRefiner = cr;
8255: return(0);
8256: }
8258: /* anchors */
8259: /*@
8260: DMPlexGetAnchors - Get the layout of the anchor (point-to-point) constraints. Typically, the user will not have to
8261: call DMPlexGetAnchors() directly: if there are anchors, then DMPlexGetAnchors() is called during DMGetConstraints().
8263: not collective
8265: Input Parameters:
8266: . dm - The DMPlex object
8268: Output Parameters:
8269: + anchorSection - If not NULL, set to the section describing which points anchor the constrained points.
8270: - anchorIS - If not NULL, set to the list of anchors indexed by anchorSection
8273: Level: intermediate
8275: .seealso: DMPlexSetAnchors(), DMGetConstraints(), DMSetConstraints()
8276: @*/
8277: PetscErrorCode DMPlexGetAnchors(DM dm, PetscSection *anchorSection, IS *anchorIS)
8278: {
8279: DM_Plex *plex = (DM_Plex *)dm->data;
8284: if (!plex->anchorSection && !plex->anchorIS && plex->createanchors) {(*plex->createanchors)(dm);}
8285: if (anchorSection) *anchorSection = plex->anchorSection;
8286: if (anchorIS) *anchorIS = plex->anchorIS;
8287: return(0);
8288: }
8290: /*@
8291: DMPlexSetAnchors - Set the layout of the local anchor (point-to-point) constraints. Unlike boundary conditions,
8292: when a point's degrees of freedom in a section are constrained to an outside value, the anchor constraints set a
8293: point's degrees of freedom to be a linear combination of other points' degrees of freedom.
8295: After specifying the layout of constraints with DMPlexSetAnchors(), one specifies the constraints by calling
8296: DMGetConstraints() and filling in the entries in the constraint matrix.
8298: collective on dm
8300: Input Parameters:
8301: + dm - The DMPlex object
8302: . anchorSection - The section that describes the mapping from constrained points to the anchor points listed in anchorIS. Must have a local communicator (PETSC_COMM_SELF or derivative).
8303: - anchorIS - The list of all anchor points. Must have a local communicator (PETSC_COMM_SELF or derivative).
8305: The reference counts of anchorSection and anchorIS are incremented.
8307: Level: intermediate
8309: .seealso: DMPlexGetAnchors(), DMGetConstraints(), DMSetConstraints()
8310: @*/
8311: PetscErrorCode DMPlexSetAnchors(DM dm, PetscSection anchorSection, IS anchorIS)
8312: {
8313: DM_Plex *plex = (DM_Plex *)dm->data;
8314: PetscMPIInt result;
8319: if (anchorSection) {
8321: MPI_Comm_compare(PETSC_COMM_SELF,PetscObjectComm((PetscObject)anchorSection),&result);
8322: if (result != MPI_CONGRUENT && result != MPI_IDENT) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_NOTSAMECOMM,"anchor section must have local communicator");
8323: }
8324: if (anchorIS) {
8326: MPI_Comm_compare(PETSC_COMM_SELF,PetscObjectComm((PetscObject)anchorIS),&result);
8327: if (result != MPI_CONGRUENT && result != MPI_IDENT) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_NOTSAMECOMM,"anchor IS must have local communicator");
8328: }
8330: PetscObjectReference((PetscObject)anchorSection);
8331: PetscSectionDestroy(&plex->anchorSection);
8332: plex->anchorSection = anchorSection;
8334: PetscObjectReference((PetscObject)anchorIS);
8335: ISDestroy(&plex->anchorIS);
8336: plex->anchorIS = anchorIS;
8338: if (PetscUnlikelyDebug(anchorIS && anchorSection)) {
8339: PetscInt size, a, pStart, pEnd;
8340: const PetscInt *anchors;
8342: PetscSectionGetChart(anchorSection,&pStart,&pEnd);
8343: ISGetLocalSize(anchorIS,&size);
8344: ISGetIndices(anchorIS,&anchors);
8345: for (a = 0; a < size; a++) {
8346: PetscInt p;
8348: p = anchors[a];
8349: if (p >= pStart && p < pEnd) {
8350: PetscInt dof;
8352: PetscSectionGetDof(anchorSection,p,&dof);
8353: if (dof) {
8354: PetscErrorCode ierr2;
8356: ierr2 = ISRestoreIndices(anchorIS,&anchors);CHKERRQ(ierr2);
8357: SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_INCOMP,"Point %D cannot be constrained and an anchor",p);
8358: }
8359: }
8360: }
8361: ISRestoreIndices(anchorIS,&anchors);
8362: }
8363: /* reset the generic constraints */
8364: DMSetDefaultConstraints(dm,NULL,NULL);
8365: return(0);
8366: }
8368: static PetscErrorCode DMPlexCreateConstraintSection_Anchors(DM dm, PetscSection section, PetscSection *cSec)
8369: {
8370: PetscSection anchorSection;
8371: PetscInt pStart, pEnd, sStart, sEnd, p, dof, numFields, f;
8376: DMPlexGetAnchors(dm,&anchorSection,NULL);
8377: PetscSectionCreate(PETSC_COMM_SELF,cSec);
8378: PetscSectionGetNumFields(section,&numFields);
8379: if (numFields) {
8380: PetscInt f;
8381: PetscSectionSetNumFields(*cSec,numFields);
8383: for (f = 0; f < numFields; f++) {
8384: PetscInt numComp;
8386: PetscSectionGetFieldComponents(section,f,&numComp);
8387: PetscSectionSetFieldComponents(*cSec,f,numComp);
8388: }
8389: }
8390: PetscSectionGetChart(anchorSection,&pStart,&pEnd);
8391: PetscSectionGetChart(section,&sStart,&sEnd);
8392: pStart = PetscMax(pStart,sStart);
8393: pEnd = PetscMin(pEnd,sEnd);
8394: pEnd = PetscMax(pStart,pEnd);
8395: PetscSectionSetChart(*cSec,pStart,pEnd);
8396: for (p = pStart; p < pEnd; p++) {
8397: PetscSectionGetDof(anchorSection,p,&dof);
8398: if (dof) {
8399: PetscSectionGetDof(section,p,&dof);
8400: PetscSectionSetDof(*cSec,p,dof);
8401: for (f = 0; f < numFields; f++) {
8402: PetscSectionGetFieldDof(section,p,f,&dof);
8403: PetscSectionSetFieldDof(*cSec,p,f,dof);
8404: }
8405: }
8406: }
8407: PetscSectionSetUp(*cSec);
8408: return(0);
8409: }
8411: static PetscErrorCode DMPlexCreateConstraintMatrix_Anchors(DM dm, PetscSection section, PetscSection cSec, Mat *cMat)
8412: {
8413: PetscSection aSec;
8414: PetscInt pStart, pEnd, p, dof, aDof, aOff, off, nnz, annz, m, n, q, a, offset, *i, *j;
8415: const PetscInt *anchors;
8416: PetscInt numFields, f;
8417: IS aIS;
8422: PetscSectionGetStorageSize(cSec, &m);
8423: PetscSectionGetStorageSize(section, &n);
8424: MatCreate(PETSC_COMM_SELF,cMat);
8425: MatSetSizes(*cMat,m,n,m,n);
8426: MatSetType(*cMat,MATSEQAIJ);
8427: DMPlexGetAnchors(dm,&aSec,&aIS);
8428: ISGetIndices(aIS,&anchors);
8429: /* cSec will be a subset of aSec and section */
8430: PetscSectionGetChart(cSec,&pStart,&pEnd);
8431: PetscMalloc1(m+1,&i);
8432: i[0] = 0;
8433: PetscSectionGetNumFields(section,&numFields);
8434: for (p = pStart; p < pEnd; p++) {
8435: PetscInt rDof, rOff, r;
8437: PetscSectionGetDof(aSec,p,&rDof);
8438: if (!rDof) continue;
8439: PetscSectionGetOffset(aSec,p,&rOff);
8440: if (numFields) {
8441: for (f = 0; f < numFields; f++) {
8442: annz = 0;
8443: for (r = 0; r < rDof; r++) {
8444: a = anchors[rOff + r];
8445: PetscSectionGetFieldDof(section,a,f,&aDof);
8446: annz += aDof;
8447: }
8448: PetscSectionGetFieldDof(cSec,p,f,&dof);
8449: PetscSectionGetFieldOffset(cSec,p,f,&off);
8450: for (q = 0; q < dof; q++) {
8451: i[off + q + 1] = i[off + q] + annz;
8452: }
8453: }
8454: }
8455: else {
8456: annz = 0;
8457: PetscSectionGetDof(cSec,p,&dof);
8458: for (q = 0; q < dof; q++) {
8459: a = anchors[off + q];
8460: PetscSectionGetDof(section,a,&aDof);
8461: annz += aDof;
8462: }
8463: PetscSectionGetDof(cSec,p,&dof);
8464: PetscSectionGetOffset(cSec,p,&off);
8465: for (q = 0; q < dof; q++) {
8466: i[off + q + 1] = i[off + q] + annz;
8467: }
8468: }
8469: }
8470: nnz = i[m];
8471: PetscMalloc1(nnz,&j);
8472: offset = 0;
8473: for (p = pStart; p < pEnd; p++) {
8474: if (numFields) {
8475: for (f = 0; f < numFields; f++) {
8476: PetscSectionGetFieldDof(cSec,p,f,&dof);
8477: for (q = 0; q < dof; q++) {
8478: PetscInt rDof, rOff, r;
8479: PetscSectionGetDof(aSec,p,&rDof);
8480: PetscSectionGetOffset(aSec,p,&rOff);
8481: for (r = 0; r < rDof; r++) {
8482: PetscInt s;
8484: a = anchors[rOff + r];
8485: PetscSectionGetFieldDof(section,a,f,&aDof);
8486: PetscSectionGetFieldOffset(section,a,f,&aOff);
8487: for (s = 0; s < aDof; s++) {
8488: j[offset++] = aOff + s;
8489: }
8490: }
8491: }
8492: }
8493: }
8494: else {
8495: PetscSectionGetDof(cSec,p,&dof);
8496: for (q = 0; q < dof; q++) {
8497: PetscInt rDof, rOff, r;
8498: PetscSectionGetDof(aSec,p,&rDof);
8499: PetscSectionGetOffset(aSec,p,&rOff);
8500: for (r = 0; r < rDof; r++) {
8501: PetscInt s;
8503: a = anchors[rOff + r];
8504: PetscSectionGetDof(section,a,&aDof);
8505: PetscSectionGetOffset(section,a,&aOff);
8506: for (s = 0; s < aDof; s++) {
8507: j[offset++] = aOff + s;
8508: }
8509: }
8510: }
8511: }
8512: }
8513: MatSeqAIJSetPreallocationCSR(*cMat,i,j,NULL);
8514: PetscFree(i);
8515: PetscFree(j);
8516: ISRestoreIndices(aIS,&anchors);
8517: return(0);
8518: }
8520: PetscErrorCode DMCreateDefaultConstraints_Plex(DM dm)
8521: {
8522: DM_Plex *plex = (DM_Plex *)dm->data;
8523: PetscSection anchorSection, section, cSec;
8524: Mat cMat;
8529: DMPlexGetAnchors(dm,&anchorSection,NULL);
8530: if (anchorSection) {
8531: PetscInt Nf;
8533: DMGetLocalSection(dm,§ion);
8534: DMPlexCreateConstraintSection_Anchors(dm,section,&cSec);
8535: DMPlexCreateConstraintMatrix_Anchors(dm,section,cSec,&cMat);
8536: DMGetNumFields(dm,&Nf);
8537: if (Nf && plex->computeanchormatrix) {(*plex->computeanchormatrix)(dm,section,cSec,cMat);}
8538: DMSetDefaultConstraints(dm,cSec,cMat);
8539: PetscSectionDestroy(&cSec);
8540: MatDestroy(&cMat);
8541: }
8542: return(0);
8543: }
8545: PetscErrorCode DMCreateSubDomainDM_Plex(DM dm, DMLabel label, PetscInt value, IS *is, DM *subdm)
8546: {
8547: IS subis;
8548: PetscSection section, subsection;
8552: DMGetLocalSection(dm, §ion);
8553: if (!section) SETERRQ(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_WRONG, "Must set default section for DM before splitting subdomain");
8554: if (!subdm) SETERRQ(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_WRONG, "Must set output subDM for splitting subdomain");
8555: /* Create subdomain */
8556: DMPlexFilter(dm, label, value, subdm);
8557: /* Create submodel */
8558: DMPlexGetSubpointIS(*subdm, &subis);
8559: PetscSectionCreateSubmeshSection(section, subis, &subsection);
8560: DMSetLocalSection(*subdm, subsection);
8561: PetscSectionDestroy(&subsection);
8562: DMCopyDisc(dm, *subdm);
8563: /* Create map from submodel to global model */
8564: if (is) {
8565: PetscSection sectionGlobal, subsectionGlobal;
8566: IS spIS;
8567: const PetscInt *spmap;
8568: PetscInt *subIndices;
8569: PetscInt subSize = 0, subOff = 0, pStart, pEnd, p;
8570: PetscInt Nf, f, bs = -1, bsLocal[2], bsMinMax[2];
8572: DMPlexGetSubpointIS(*subdm, &spIS);
8573: ISGetIndices(spIS, &spmap);
8574: PetscSectionGetNumFields(section, &Nf);
8575: DMGetGlobalSection(dm, §ionGlobal);
8576: DMGetGlobalSection(*subdm, &subsectionGlobal);
8577: PetscSectionGetChart(subsection, &pStart, &pEnd);
8578: for (p = pStart; p < pEnd; ++p) {
8579: PetscInt gdof, pSubSize = 0;
8581: PetscSectionGetDof(sectionGlobal, p, &gdof);
8582: if (gdof > 0) {
8583: for (f = 0; f < Nf; ++f) {
8584: PetscInt fdof, fcdof;
8586: PetscSectionGetFieldDof(subsection, p, f, &fdof);
8587: PetscSectionGetFieldConstraintDof(subsection, p, f, &fcdof);
8588: pSubSize += fdof-fcdof;
8589: }
8590: subSize += pSubSize;
8591: if (pSubSize) {
8592: if (bs < 0) {
8593: bs = pSubSize;
8594: } else if (bs != pSubSize) {
8595: /* Layout does not admit a pointwise block size */
8596: bs = 1;
8597: }
8598: }
8599: }
8600: }
8601: /* Must have same blocksize on all procs (some might have no points) */
8602: bsLocal[0] = bs < 0 ? PETSC_MAX_INT : bs; bsLocal[1] = bs;
8603: PetscGlobalMinMaxInt(PetscObjectComm((PetscObject) dm), bsLocal, bsMinMax);
8604: if (bsMinMax[0] != bsMinMax[1]) {bs = 1;}
8605: else {bs = bsMinMax[0];}
8606: PetscMalloc1(subSize, &subIndices);
8607: for (p = pStart; p < pEnd; ++p) {
8608: PetscInt gdof, goff;
8610: PetscSectionGetDof(subsectionGlobal, p, &gdof);
8611: if (gdof > 0) {
8612: const PetscInt point = spmap[p];
8614: PetscSectionGetOffset(sectionGlobal, point, &goff);
8615: for (f = 0; f < Nf; ++f) {
8616: PetscInt fdof, fcdof, fc, f2, poff = 0;
8618: /* Can get rid of this loop by storing field information in the global section */
8619: for (f2 = 0; f2 < f; ++f2) {
8620: PetscSectionGetFieldDof(section, p, f2, &fdof);
8621: PetscSectionGetFieldConstraintDof(section, p, f2, &fcdof);
8622: poff += fdof-fcdof;
8623: }
8624: PetscSectionGetFieldDof(section, p, f, &fdof);
8625: PetscSectionGetFieldConstraintDof(section, p, f, &fcdof);
8626: for (fc = 0; fc < fdof-fcdof; ++fc, ++subOff) {
8627: subIndices[subOff] = goff+poff+fc;
8628: }
8629: }
8630: }
8631: }
8632: ISRestoreIndices(spIS, &spmap);
8633: ISCreateGeneral(PetscObjectComm((PetscObject)dm), subSize, subIndices, PETSC_OWN_POINTER, is);
8634: if (bs > 1) {
8635: /* We need to check that the block size does not come from non-contiguous fields */
8636: PetscInt i, j, set = 1;
8637: for (i = 0; i < subSize; i += bs) {
8638: for (j = 0; j < bs; ++j) {
8639: if (subIndices[i+j] != subIndices[i]+j) {set = 0; break;}
8640: }
8641: }
8642: if (set) {ISSetBlockSize(*is, bs);}
8643: }
8644: /* Attach nullspace */
8645: for (f = 0; f < Nf; ++f) {
8646: (*subdm)->nullspaceConstructors[f] = dm->nullspaceConstructors[f];
8647: if ((*subdm)->nullspaceConstructors[f]) break;
8648: }
8649: if (f < Nf) {
8650: MatNullSpace nullSpace;
8652: (*(*subdm)->nullspaceConstructors[f])(*subdm, f, f, &nullSpace);
8653: PetscObjectCompose((PetscObject) *is, "nullspace", (PetscObject) nullSpace);
8654: MatNullSpaceDestroy(&nullSpace);
8655: }
8656: }
8657: return(0);
8658: }
8660: /*@
8661: DMPlexMonitorThroughput - Report the cell throughput of FE integration
8663: Input Parameter:
8664: - dm - The DM
8666: Level: developer
8668: Options Database Keys:
8669: . -dm_plex_monitor_throughput - Activate the monitor
8671: .seealso: DMSetFromOptions(), DMPlexCreate()
8672: @*/
8673: PetscErrorCode DMPlexMonitorThroughput(DM dm, void *dummy)
8674: {
8675: #if defined(PETSC_USE_LOG)
8676: PetscStageLog stageLog;
8677: PetscLogEvent event;
8678: PetscLogStage stage;
8679: PetscEventPerfInfo eventInfo;
8680: PetscReal cellRate, flopRate;
8681: PetscInt cStart, cEnd, Nf, N;
8682: const char *name;
8683: PetscErrorCode ierr;
8684: #endif
8688: #if defined(PETSC_USE_LOG)
8689: PetscObjectGetName((PetscObject) dm, &name);
8690: DMPlexGetHeightStratum(dm, 0, &cStart, &cEnd);
8691: DMGetNumFields(dm, &Nf);
8692: PetscLogGetStageLog(&stageLog);
8693: PetscStageLogGetCurrent(stageLog, &stage);
8694: PetscLogEventGetId("DMPlexResidualFE", &event);
8695: PetscLogEventGetPerfInfo(stage, event, &eventInfo);
8696: N = (cEnd - cStart)*Nf*eventInfo.count;
8697: flopRate = eventInfo.flops/eventInfo.time;
8698: cellRate = N/eventInfo.time;
8699: PetscPrintf(PetscObjectComm((PetscObject) dm), "DM (%s) FE Residual Integration: %D integrals %D reps\n Cell rate: %.2g/s flop rate: %.2g MF/s\n", name ? name : "unknown", N, eventInfo.count, (double) cellRate, (double) (flopRate/1.e6));
8700: #else
8701: SETERRQ(PetscObjectComm((PetscObject) dm), PETSC_ERR_SUP, "Plex Throughput Monitor is not supported if logging is turned off. Reconfigure using --with-log.");
8702: #endif
8703: return(0);
8704: }