Actual source code: dmimpl.h
petsc-3.14.6 2021-03-30
3: #if !defined(_DMIMPL_H)
4: #define _DMIMPL_H
6: #include <petscdm.h>
7: #include <petsc/private/petscimpl.h>
8: #include <petsc/private/petscdsimpl.h>
9: #include <petsc/private/sectionimpl.h>
11: PETSC_EXTERN PetscBool DMRegisterAllCalled;
12: PETSC_EXTERN PetscErrorCode DMRegisterAll(void);
13: typedef PetscErrorCode (*NullSpaceFunc)(DM dm, PetscInt origField, PetscInt field, MatNullSpace *nullSpace);
15: typedef struct _DMOps *DMOps;
16: struct _DMOps {
17: PetscErrorCode (*view)(DM,PetscViewer);
18: PetscErrorCode (*load)(DM,PetscViewer);
19: PetscErrorCode (*clone)(DM,DM*);
20: PetscErrorCode (*setfromoptions)(PetscOptionItems*,DM);
21: PetscErrorCode (*setup)(DM);
22: PetscErrorCode (*createlocalsection)(DM);
23: PetscErrorCode (*createdefaultconstraints)(DM);
24: PetscErrorCode (*createglobalvector)(DM,Vec*);
25: PetscErrorCode (*createlocalvector)(DM,Vec*);
26: PetscErrorCode (*getlocaltoglobalmapping)(DM);
27: PetscErrorCode (*createfieldis)(DM,PetscInt*,char***,IS**);
28: PetscErrorCode (*createcoordinatedm)(DM,DM*);
29: PetscErrorCode (*createcoordinatefield)(DM,DMField*);
31: PetscErrorCode (*getcoloring)(DM,ISColoringType,ISColoring*);
32: PetscErrorCode (*creatematrix)(DM, Mat*);
33: PetscErrorCode (*createinterpolation)(DM,DM,Mat*,Vec*);
34: PetscErrorCode (*createrestriction)(DM,DM,Mat*);
35: PetscErrorCode (*createmassmatrix)(DM,DM,Mat*);
36: PetscErrorCode (*hascreateinjection)(DM,PetscBool*);
37: PetscErrorCode (*createinjection)(DM,DM,Mat*);
39: PetscErrorCode (*refine)(DM,MPI_Comm,DM*);
40: PetscErrorCode (*coarsen)(DM,MPI_Comm,DM*);
41: PetscErrorCode (*refinehierarchy)(DM,PetscInt,DM*);
42: PetscErrorCode (*coarsenhierarchy)(DM,PetscInt,DM*);
43: PetscErrorCode (*adaptlabel)(DM,DMLabel,DM*);
44: PetscErrorCode (*adaptmetric)(DM,Vec,DMLabel,DM*);
46: PetscErrorCode (*globaltolocalbegin)(DM,Vec,InsertMode,Vec);
47: PetscErrorCode (*globaltolocalend)(DM,Vec,InsertMode,Vec);
48: PetscErrorCode (*localtoglobalbegin)(DM,Vec,InsertMode,Vec);
49: PetscErrorCode (*localtoglobalend)(DM,Vec,InsertMode,Vec);
50: PetscErrorCode (*localtolocalbegin)(DM,Vec,InsertMode,Vec);
51: PetscErrorCode (*localtolocalend)(DM,Vec,InsertMode,Vec);
53: PetscErrorCode (*destroy)(DM);
55: PetscErrorCode (*computevariablebounds)(DM,Vec,Vec);
57: PetscErrorCode (*createsubdm)(DM,PetscInt,const PetscInt*,IS*,DM*);
58: PetscErrorCode (*createsuperdm)(DM*,PetscInt,IS**,DM*);
59: PetscErrorCode (*createfielddecomposition)(DM,PetscInt*,char***,IS**,DM**);
60: PetscErrorCode (*createdomaindecomposition)(DM,PetscInt*,char***,IS**,IS**,DM**);
61: PetscErrorCode (*createddscatters)(DM,PetscInt,DM*,VecScatter**,VecScatter**,VecScatter**);
63: PetscErrorCode (*getdimpoints)(DM,PetscInt,PetscInt*,PetscInt*);
64: PetscErrorCode (*locatepoints)(DM,Vec,DMPointLocationType,PetscSF);
65: PetscErrorCode (*getneighbors)(DM,PetscInt*,const PetscMPIInt**);
66: PetscErrorCode (*getboundingbox)(DM,PetscReal*,PetscReal*);
67: PetscErrorCode (*getlocalboundingbox)(DM,PetscReal*,PetscReal*);
68: PetscErrorCode (*locatepointssubdomain)(DM,Vec,PetscMPIInt**);
70: PetscErrorCode (*projectfunctionlocal)(DM,PetscReal,PetscErrorCode(**)(PetscInt,PetscReal,const PetscReal[],PetscInt,PetscScalar *,void *),void **,InsertMode,Vec);
71: PetscErrorCode (*projectfunctionlabellocal)(DM,PetscReal,DMLabel,PetscInt,const PetscInt[],PetscInt,const PetscInt[],PetscErrorCode(**)(PetscInt,PetscReal,const PetscReal[],PetscInt,PetscScalar *,void *),void **,InsertMode,Vec);
72: PetscErrorCode (*projectfieldlocal)(DM,PetscReal,Vec,void(**)(PetscInt,PetscInt,PetscInt,const PetscInt[],const PetscInt[],const PetscScalar[],const PetscScalar[],const PetscScalar[],const PetscInt[],const PetscInt[],const PetscScalar[],const PetscScalar[],const PetscScalar[],PetscReal,const PetscReal[],PetscInt,const PetscScalar[],PetscScalar[]),InsertMode,Vec);
73: PetscErrorCode (*projectfieldlabellocal)(DM,PetscReal,DMLabel,PetscInt,const PetscInt[],PetscInt,const PetscInt[],Vec,void(**)(PetscInt,PetscInt,PetscInt,const PetscInt[],const PetscInt[],const PetscScalar[],const PetscScalar[],const PetscScalar[],const PetscInt[],const PetscInt[],const PetscScalar[],const PetscScalar[],const PetscScalar[],PetscReal,const PetscReal[],PetscInt,const PetscScalar[],PetscScalar[]),InsertMode,Vec);
74: PetscErrorCode (*projectbdfieldlabellocal)(DM,PetscReal,DMLabel,PetscInt,const PetscInt[],PetscInt,const PetscInt[],Vec,void(**)(PetscInt,PetscInt,PetscInt,const PetscInt[],const PetscInt[],const PetscScalar[],const PetscScalar[],const PetscScalar[],const PetscInt[],const PetscInt[],const PetscScalar[],const PetscScalar[],const PetscScalar[],PetscReal,const PetscReal[],const PetscReal[],PetscInt,const PetscScalar[],PetscScalar[]),InsertMode,Vec);
75: PetscErrorCode (*computel2diff)(DM,PetscReal,PetscErrorCode(**)(PetscInt, PetscReal,const PetscReal [], PetscInt, PetscScalar *, void *), void **, Vec, PetscReal *);
76: PetscErrorCode (*computel2gradientdiff)(DM,PetscReal,PetscErrorCode(**)(PetscInt,PetscReal,const PetscReal [],const PetscReal[],PetscInt, PetscScalar *,void *),void **,Vec,const PetscReal[],PetscReal *);
77: PetscErrorCode (*computel2fielddiff)(DM,PetscReal,PetscErrorCode(**)(PetscInt, PetscReal,const PetscReal [], PetscInt, PetscScalar *, void *), void **, Vec, PetscReal *);
79: PetscErrorCode (*getcompatibility)(DM,DM,PetscBool*,PetscBool*);
80: };
82: PETSC_EXTERN PetscErrorCode DMLocalizeCoordinate_Internal(DM, PetscInt, const PetscScalar[], const PetscScalar[], PetscScalar[]);
83: PETSC_EXTERN PetscErrorCode DMLocalizeCoordinateReal_Internal(DM, PetscInt, const PetscReal[], const PetscReal[], PetscReal[]);
84: PETSC_EXTERN PetscErrorCode DMLocalizeAddCoordinate_Internal(DM, PetscInt, const PetscScalar[], const PetscScalar[], PetscScalar[]);
86: typedef struct _DMCoarsenHookLink *DMCoarsenHookLink;
87: struct _DMCoarsenHookLink {
88: PetscErrorCode (*coarsenhook)(DM,DM,void*); /* Run once, when coarse DM is created */
89: PetscErrorCode (*restricthook)(DM,Mat,Vec,Mat,DM,void*); /* Run each time a new problem is restricted to a coarse grid */
90: void *ctx;
91: DMCoarsenHookLink next;
92: };
94: typedef struct _DMRefineHookLink *DMRefineHookLink;
95: struct _DMRefineHookLink {
96: PetscErrorCode (*refinehook)(DM,DM,void*); /* Run once, when a fine DM is created */
97: PetscErrorCode (*interphook)(DM,Mat,DM,void*); /* Run each time a new problem is interpolated to a fine grid */
98: void *ctx;
99: DMRefineHookLink next;
100: };
102: typedef struct _DMSubDomainHookLink *DMSubDomainHookLink;
103: struct _DMSubDomainHookLink {
104: PetscErrorCode (*ddhook)(DM,DM,void*);
105: PetscErrorCode (*restricthook)(DM,VecScatter,VecScatter,DM,void*);
106: void *ctx;
107: DMSubDomainHookLink next;
108: };
110: typedef struct _DMGlobalToLocalHookLink *DMGlobalToLocalHookLink;
111: struct _DMGlobalToLocalHookLink {
112: PetscErrorCode (*beginhook)(DM,Vec,InsertMode,Vec,void*);
113: PetscErrorCode (*endhook)(DM,Vec,InsertMode,Vec,void*);
114: void *ctx;
115: DMGlobalToLocalHookLink next;
116: };
118: typedef struct _DMLocalToGlobalHookLink *DMLocalToGlobalHookLink;
119: struct _DMLocalToGlobalHookLink {
120: PetscErrorCode (*beginhook)(DM,Vec,InsertMode,Vec,void*);
121: PetscErrorCode (*endhook)(DM,Vec,InsertMode,Vec,void*);
122: void *ctx;
123: DMLocalToGlobalHookLink next;
124: };
126: typedef enum {DMVEC_STATUS_IN,DMVEC_STATUS_OUT} DMVecStatus;
127: typedef struct _DMNamedVecLink *DMNamedVecLink;
128: struct _DMNamedVecLink {
129: Vec X;
130: char *name;
131: DMVecStatus status;
132: DMNamedVecLink next;
133: };
135: typedef struct _DMWorkLink *DMWorkLink;
136: struct _DMWorkLink {
137: size_t bytes;
138: void *mem;
139: DMWorkLink next;
140: };
142: #define DM_MAX_WORK_VECTORS 100 /* work vectors available to users via DMGetGlobalVector(), DMGetLocalVector() */
144: struct _n_DMLabelLink {
145: DMLabel label;
146: PetscBool output;
147: struct _n_DMLabelLink *next;
148: };
149: typedef struct _n_DMLabelLink *DMLabelLink;
151: typedef struct _n_Boundary *DMBoundary;
153: struct _n_Boundary {
154: DSBoundary dsboundary;
155: DMLabel label;
156: DMBoundary next;
157: };
159: typedef struct _n_Field {
160: PetscObject disc; /* Field discretization, or a PetscContainer with the field name */
161: DMLabel label; /* Label defining the domain of definition of the field */
162: PetscBool adjacency[2]; /* Flags for defining variable influence (adjacency) for each field [use cone() or support() first, use the transitive closure] */
163: } RegionField;
165: typedef struct _n_Space {
166: PetscDS ds; /* Approximation space in this domain */
167: DMLabel label; /* Label defining the domain of definition of the discretization */
168: IS fields; /* Map from DS field numbers to original field numbers in the DM */
169: } DMSpace;
171: PETSC_INTERN PetscErrorCode DMDestroyLabelLinkList_Internal(DM);
173: #define MAXDMMONITORS 5
175: struct _p_DM {
176: PETSCHEADER(struct _DMOps);
177: Vec localin[DM_MAX_WORK_VECTORS],localout[DM_MAX_WORK_VECTORS];
178: Vec globalin[DM_MAX_WORK_VECTORS],globalout[DM_MAX_WORK_VECTORS];
179: DMNamedVecLink namedglobal;
180: DMNamedVecLink namedlocal;
181: DMWorkLink workin,workout;
182: DMLabelLink labels; /* Linked list of labels */
183: DMLabel depthLabel; /* Optimized access to depth label */
184: DMLabel celltypeLabel; /* Optimized access to celltype label */
185: void *ctx; /* a user context */
186: PetscErrorCode (*ctxdestroy)(void**);
187: ISColoringType coloringtype;
188: MatFDColoring fd;
189: VecType vectype; /* type of vector created with DMCreateLocalVector() and DMCreateGlobalVector() */
190: MatType mattype; /* type of matrix created with DMCreateMatrix() */
191: PetscInt bs;
192: ISLocalToGlobalMapping ltogmap;
193: PetscBool prealloc_only; /* Flag indicating the DMCreateMatrix() should only preallocate, not fill the matrix */
194: PetscBool structure_only; /* Flag indicating the DMCreateMatrix() create matrix structure without values */
195: PetscInt levelup,leveldown; /* if the DM has been obtained by refining (or coarsening) this indicates how many times that process has been used to generate this DM */
196: PetscBool setupcalled; /* Indicates that the DM has been set up, methods that modify a DM such that a fresh setup is required should reset this flag */
197: PetscBool setfromoptionscalled;
198: void *data;
199: /* Hierarchy / Submeshes */
200: DM coarseMesh;
201: DM fineMesh;
202: DMCoarsenHookLink coarsenhook; /* For transfering auxiliary problem data to coarser grids */
203: DMRefineHookLink refinehook;
204: DMSubDomainHookLink subdomainhook;
205: DMGlobalToLocalHookLink gtolhook;
206: DMLocalToGlobalHookLink ltoghook;
207: /* Topology */
208: PetscInt dim; /* The topological dimension */
209: /* Flexible communication */
210: PetscSF sfMigration; /* SF for point distribution created during distribution */
211: PetscSF sf; /* SF for parallel point overlap */
212: PetscSF sectionSF; /* SF for parallel dof overlap using section */
213: PetscSF sfNatural; /* SF mapping to the "natural" ordering */
214: PetscBool useNatural; /* Create the natural SF */
215: /* Allows a non-standard data layout */
216: PetscBool adjacency[2]; /* [use cone() or support() first, use the transitive closure] */
217: PetscSection localSection; /* Layout for local vectors */
218: PetscSection globalSection; /* Layout for global vectors */
219: PetscLayout map;
220: /* Constraints */
221: PetscSection defaultConstraintSection;
222: Mat defaultConstraintMat;
223: /* Basis transformation */
224: DM transformDM; /* Layout for basis transformation */
225: Vec transform; /* Basis transformation matrices */
226: void *transformCtx; /* Basis transformation context */
227: PetscErrorCode (*transformSetUp)(DM, void *);
228: PetscErrorCode (*transformDestroy)(DM, void *);
229: PetscErrorCode (*transformGetMatrix)(DM, const PetscReal[], PetscBool, const PetscScalar **, void *);
230: /* Coordinates */
231: PetscInt dimEmbed; /* The dimension of the embedding space */
232: DM coordinateDM; /* Layout for coordinates */
233: Vec coordinates; /* Coordinate values in global vector */
234: Vec coordinatesLocal; /* Coordinate values in local vector */
235: PetscBool periodic; /* Is the DM periodic? */
236: DMField coordinateField; /* Coordinates as an abstract field */
237: PetscReal *L, *maxCell; /* Size of periodic box and max cell size for determining periodicity */
238: DMBoundaryType *bdtype; /* Indicates type of topological boundary */
239: /* Null spaces -- of course I should make this have a variable number of fields */
240: /* I now believe this might not be the right way: see below */
241: NullSpaceFunc nullspaceConstructors[10];
242: NullSpaceFunc nearnullspaceConstructors[10];
243: /* Fields are represented by objects */
244: PetscInt Nf; /* Number of fields defined on the total domain */
245: RegionField *fields; /* Array of discretization fields with regions of validity */
246: DMBoundary boundary; /* List of boundary conditions */
247: PetscInt Nds; /* Number of discrete systems defined on the total domain */
248: DMSpace *probs; /* Array of discrete systems */
249: /* Output structures */
250: DM dmBC; /* The DM with boundary conditions in the global DM */
251: PetscInt outputSequenceNum; /* The current sequence number for output */
252: PetscReal outputSequenceVal; /* The current sequence value for output */
253: PetscErrorCode (*monitor[MAXDMMONITORS])(DM, void *);
254: PetscErrorCode (*monitordestroy[MAXDMMONITORS])(void **);
255: void *monitorcontext[MAXDMMONITORS];
256: PetscInt numbermonitors;
258: PetscObject dmksp,dmsnes,dmts;
259: };
261: PETSC_EXTERN PetscLogEvent DM_Convert;
262: PETSC_EXTERN PetscLogEvent DM_GlobalToLocal;
263: PETSC_EXTERN PetscLogEvent DM_LocalToGlobal;
264: PETSC_EXTERN PetscLogEvent DM_LocatePoints;
265: PETSC_EXTERN PetscLogEvent DM_Coarsen;
266: PETSC_EXTERN PetscLogEvent DM_Refine;
267: PETSC_EXTERN PetscLogEvent DM_CreateInterpolation;
268: PETSC_EXTERN PetscLogEvent DM_CreateRestriction;
269: PETSC_EXTERN PetscLogEvent DM_CreateInjection;
270: PETSC_EXTERN PetscLogEvent DM_CreateMatrix;
271: PETSC_EXTERN PetscLogEvent DM_Load;
272: PETSC_EXTERN PetscLogEvent DM_AdaptInterpolator;
274: PETSC_EXTERN PetscErrorCode DMCreateGlobalVector_Section_Private(DM,Vec*);
275: PETSC_EXTERN PetscErrorCode DMCreateLocalVector_Section_Private(DM,Vec*);
277: PETSC_EXTERN PetscErrorCode DMView_GLVis(DM,PetscViewer,PetscErrorCode(*)(DM,PetscViewer));
279: /*
281: Composite Vectors
283: Single global representation
284: Individual global representations
285: Single local representation
286: Individual local representations
288: Subsets of individual as a single????? Do we handle this by having DMComposite inside composite??????
290: DM da_u, da_v, da_p
292: DM dm_velocities
294: DM dm
296: DMDACreate(,&da_u);
297: DMDACreate(,&da_v);
298: DMCompositeCreate(,&dm_velocities);
299: DMCompositeAddDM(dm_velocities,(DM)du);
300: DMCompositeAddDM(dm_velocities,(DM)dv);
302: DMDACreate(,&da_p);
303: DMCompositeCreate(,&dm_velocities);
304: DMCompositeAddDM(dm,(DM)dm_velocities);
305: DMCompositeAddDM(dm,(DM)dm_p);
308: Access parts of composite vectors (Composite only)
309: ---------------------------------
310: DMCompositeGetAccess - access the global vector as subvectors and array (for redundant arrays)
311: ADD for local vector -
313: Element access
314: --------------
315: From global vectors
316: -DAVecGetArray - for DMDA
317: -VecGetArray - for DMSliced
318: ADD for DMComposite??? maybe
320: From individual vector
321: -DAVecGetArray - for DMDA
322: -VecGetArray -for sliced
323: ADD for DMComposite??? maybe
325: From single local vector
326: ADD * single local vector as arrays?
328: Communication
329: -------------
330: DMGlobalToLocal - global vector to single local vector
332: DMCompositeScatter/Gather - direct to individual local vectors and arrays CHANGE name closer to GlobalToLocal?
334: Obtaining vectors
335: -----------------
336: DMCreateGlobal/Local
337: DMGetGlobal/Local
338: DMCompositeGetLocalVectors - gives individual local work vectors and arrays
341: ????? individual global vectors ????
343: */
345: #if defined(PETSC_HAVE_HDF5)
346: PETSC_EXTERN PetscErrorCode DMSequenceLoad_HDF5_Internal(DM, const char *, PetscInt, PetscScalar *, PetscViewer);
347: #endif
349: PETSC_STATIC_INLINE PetscErrorCode DMGetLocalOffset_Private(DM dm, PetscInt point, PetscInt *start, PetscInt *end)
350: {
352: #if defined(PETSC_USE_DEBUG)
353: {
354: PetscInt dof;
356: *start = *end = 0; /* Silence overzealous compiler warning */
357: if (!dm->localSection) SETERRQ(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_WRONG, "DM must have a local section, see DMSetLocalSection()");
358: PetscSectionGetOffset(dm->localSection, point, start);
359: PetscSectionGetDof(dm->localSection, point, &dof);
360: *end = *start + dof;
361: }
362: #else
363: {
364: const PetscSection s = dm->localSection;
365: *start = s->atlasOff[point - s->pStart];
366: *end = *start + s->atlasDof[point - s->pStart];
367: }
368: #endif
369: return(0);
370: }
372: PETSC_STATIC_INLINE PetscErrorCode DMGetLocalFieldOffset_Private(DM dm, PetscInt point, PetscInt field, PetscInt *start, PetscInt *end)
373: {
375: #if defined(PETSC_USE_DEBUG)
376: {
377: PetscInt dof;
379: *start = *end = 0; /* Silence overzealous compiler warning */
380: if (!dm->localSection) SETERRQ(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_WRONG, "DM must have a local section, see DMSetLocalSection()");
381: PetscSectionGetFieldOffset(dm->localSection, point, field, start);
382: PetscSectionGetFieldDof(dm->localSection, point, field, &dof);
383: *end = *start + dof;
384: }
385: #else
386: {
387: const PetscSection s = dm->localSection->field[field];
388: *start = s->atlasOff[point - s->pStart];
389: *end = *start + s->atlasDof[point - s->pStart];
390: }
391: #endif
392: return(0);
393: }
395: PETSC_STATIC_INLINE PetscErrorCode DMGetGlobalOffset_Private(DM dm, PetscInt point, PetscInt *start, PetscInt *end)
396: {
398: #if defined(PETSC_USE_DEBUG)
399: {
401: PetscInt dof,cdof;
402: *start = *end = 0; /* Silence overzealous compiler warning */
403: if (!dm->localSection) SETERRQ(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_WRONG, "DM must have a local section, see DMSetLocalSection()");
404: if (!dm->globalSection) SETERRQ(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_WRONG, "DM must have a global section. It will be created automatically by DMGetGlobalSection()");
405: PetscSectionGetOffset(dm->globalSection, point, start);
406: PetscSectionGetDof(dm->globalSection, point, &dof);
407: PetscSectionGetConstraintDof(dm->globalSection, point, &cdof);
408: *end = *start + dof - cdof + (dof < 0 ? 1 : 0);
409: }
410: #else
411: {
412: const PetscSection s = dm->globalSection;
413: const PetscInt dof = s->atlasDof[point - s->pStart];
414: const PetscInt cdof = s->bc ? s->bc->atlasDof[point - s->bc->pStart] : 0;
415: *start = s->atlasOff[point - s->pStart];
416: *end = *start + dof - cdof + (dof < 0 ? 1 : 0);
417: }
418: #endif
419: return(0);
420: }
422: PETSC_STATIC_INLINE PetscErrorCode DMGetGlobalFieldOffset_Private(DM dm, PetscInt point, PetscInt field, PetscInt *start, PetscInt *end)
423: {
425: #if defined(PETSC_USE_DEBUG)
426: {
427: PetscInt loff, lfoff, fdof, fcdof, ffcdof, f;
429: *start = *end = 0; /* Silence overzealous compiler warning */
430: if (!dm->localSection) SETERRQ(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_WRONG, "DM must have a local section, see DMSetLocalSection()");
431: if (!dm->globalSection) SETERRQ(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_WRONG, "DM must have a global section. It will be crated automatically by DMGetGlobalSection()");
432: PetscSectionGetOffset(dm->globalSection, point, start);
433: PetscSectionGetOffset(dm->localSection, point, &loff);
434: PetscSectionGetFieldOffset(dm->localSection, point, field, &lfoff);
435: PetscSectionGetFieldDof(dm->localSection, point, field, &fdof);
436: PetscSectionGetFieldConstraintDof(dm->localSection, point, field, &fcdof);
437: *start = *start < 0 ? *start - (lfoff-loff) : *start + lfoff-loff;
438: for (f = 0; f < field; ++f) {
439: PetscSectionGetFieldConstraintDof(dm->localSection, point, f, &ffcdof);
440: *start = *start < 0 ? *start + ffcdof : *start - ffcdof;
441: }
442: *end = *start < 0 ? *start - (fdof-fcdof) : *start + fdof-fcdof;
443: }
444: #else
445: {
446: const PetscSection s = dm->localSection;
447: const PetscSection fs = dm->localSection->field[field];
448: const PetscSection gs = dm->globalSection;
449: const PetscInt loff = s->atlasOff[point - s->pStart];
450: const PetscInt goff = gs->atlasOff[point - s->pStart];
451: const PetscInt lfoff = fs->atlasOff[point - s->pStart];
452: const PetscInt fdof = fs->atlasDof[point - s->pStart];
453: const PetscInt fcdof = fs->bc ? fs->bc->atlasDof[point - fs->bc->pStart] : 0;
454: PetscInt ffcdof = 0, f;
456: for (f = 0; f < field; ++f) {
457: const PetscSection ffs = dm->localSection->field[f];
458: ffcdof += ffs->bc ? ffs->bc->atlasDof[point - ffs->bc->pStart] : 0;
459: }
460: *start = goff + (goff < 0 ? loff-lfoff + ffcdof : lfoff-loff - ffcdof);
461: *end = *start < 0 ? *start - (fdof-fcdof) : *start + fdof-fcdof;
462: }
463: #endif
464: return(0);
465: }
467: PETSC_EXTERN PetscErrorCode DMGetBasisTransformDM_Internal(DM, DM *);
468: PETSC_EXTERN PetscErrorCode DMGetBasisTransformVec_Internal(DM, Vec *);
469: PETSC_INTERN PetscErrorCode DMConstructBasisTransform_Internal(DM);
471: PETSC_INTERN PetscErrorCode DMGetLocalBoundingIndices_DMDA(DM, PetscReal[], PetscReal[]);
472: PETSC_INTERN PetscErrorCode DMSetField_Internal(DM, PetscInt, DMLabel, PetscObject);
474: #endif