Actual source code: ex33.c
1: static char help[] = "Tests for high order geometry\n\n";
3: #include <petscdmplex.h>
4: #include <petscds.h>
6: typedef struct {
7: PetscReal volume; /* Analytical volume of the mesh */
8: PetscReal tol; /* Tolerance for volume check */
9: } AppCtx;
11: PetscErrorCode ProcessOptions(MPI_Comm comm, AppCtx *options)
12: {
13: PetscFunctionBegin;
14: options->volume = -1.0;
15: options->tol = PETSC_SMALL;
17: PetscOptionsBegin(comm, "", "Meshing Interpolation Test Options", "DMPLEX");
18: PetscCall(PetscOptionsReal("-volume", "The analytical volume of the mesh", "ex33.c", options->volume, &options->volume, NULL));
19: PetscCall(PetscOptionsReal("-tol", "The tolerance for the volume check", "ex33.c", options->tol, &options->tol, NULL));
20: PetscOptionsEnd();
21: PetscFunctionReturn(PETSC_SUCCESS);
22: }
24: PetscErrorCode CreateMesh(MPI_Comm comm, AppCtx *ctx, DM *dm)
25: {
26: PetscFunctionBegin;
27: PetscCall(DMCreate(comm, dm));
28: PetscCall(DMSetType(*dm, DMPLEX));
29: PetscCall(DMSetFromOptions(*dm));
30: PetscCall(DMViewFromOptions(*dm, NULL, "-dm_view"));
31: PetscFunctionReturn(PETSC_SUCCESS);
32: }
34: static void volume(PetscInt dim, PetscInt Nf, PetscInt NfAux, const PetscInt uOff[], const PetscInt uOff_x[], const PetscScalar u[], const PetscScalar u_t[], const PetscScalar u_x[], const PetscInt aOff[], const PetscInt aOff_x[], const PetscScalar a[], const PetscScalar a_t[], const PetscScalar a_x[], PetscReal t, const PetscReal x[], PetscInt numConstants, const PetscScalar constants[], PetscScalar vol[])
35: {
36: vol[0] = 1.;
37: }
39: static PetscErrorCode CreateDiscretization(DM dm, AppCtx *ctx)
40: {
41: PetscDS ds;
42: PetscFE fe;
43: DMPolytopeType ct;
44: PetscInt dim, cStart;
46: PetscFunctionBeginUser;
47: PetscCall(DMGetDimension(dm, &dim));
48: PetscCall(DMPlexGetHeightStratum(dm, 0, &cStart, NULL));
49: PetscCall(DMPlexGetCellType(dm, cStart, &ct));
50: PetscCall(PetscFECreateByCell(PETSC_COMM_SELF, dim, 1, ct, NULL, PETSC_DETERMINE, &fe));
51: PetscCall(PetscFESetName(fe, "scalar"));
52: PetscCall(DMAddField(dm, NULL, (PetscObject)fe));
53: PetscCall(PetscFEDestroy(&fe));
54: PetscCall(DMCreateDS(dm));
55: PetscCall(DMGetDS(dm, &ds));
56: PetscCall(PetscDSSetObjective(ds, 0, volume));
57: PetscFunctionReturn(PETSC_SUCCESS);
58: }
60: static PetscErrorCode CheckVolume(DM dm, AppCtx *ctx)
61: {
62: Vec u;
63: PetscScalar result;
64: PetscReal vol, tol = ctx->tol;
66: PetscFunctionBeginUser;
67: PetscCall(DMGetGlobalVector(dm, &u));
68: PetscCall(DMPlexComputeIntegralFEM(dm, u, &result, ctx));
69: vol = PetscRealPart(result);
70: PetscCall(DMRestoreGlobalVector(dm, &u));
71: PetscCall(PetscPrintf(PetscObjectComm((PetscObject)dm), "Volume: %g\n", (double)vol));
72: PetscCheck(ctx->volume <= 0.0 || PetscAbsReal(ctx->volume - vol) <= tol, PetscObjectComm((PetscObject)dm), PETSC_ERR_PLIB, "Calculated volume %g != %g actual volume (error %g > %g tol)", (double)vol, (double)ctx->volume, (double)PetscAbsReal(ctx->volume - vol), (double)tol);
73: PetscFunctionReturn(PETSC_SUCCESS);
74: }
76: int main(int argc, char **argv)
77: {
78: DM dm;
79: AppCtx user;
81: PetscFunctionBeginUser;
82: PetscCall(PetscInitialize(&argc, &argv, NULL, help));
83: PetscCall(ProcessOptions(PETSC_COMM_WORLD, &user));
84: PetscCall(CreateMesh(PETSC_COMM_WORLD, &user, &dm));
85: PetscCall(CreateDiscretization(dm, &user));
86: PetscCall(CheckVolume(dm, &user));
87: PetscCall(DMDestroy(&dm));
88: PetscCall(PetscFinalize());
89: return 0;
90: }
92: /*TEST
94: testset:
95: args: -dm_plex_simplex 0 -dm_plex_box_faces 1,1 -dm_plex_box_lower -1.,-1. -dm_plex_box_upper 1.,1. -volume 4.
97: test:
98: suffix: square_0
99: args: -dm_coord_petscspace_degree 1
101: test:
102: suffix: square_1
103: args: -dm_coord_petscspace_degree 2
105: test:
106: suffix: square_2
107: args: -dm_refine 1 -dm_coord_petscspace_degree 1
109: test:
110: suffix: square_3
111: args: -dm_refine 1 -dm_coord_petscspace_degree 2
113: testset:
114: args: -dm_plex_dim 3 -dm_plex_simplex 0 -dm_plex_box_faces 1,1,1 -dm_plex_box_lower -1.,-1.,-1. -dm_plex_box_upper 1.,1.,1. -volume 8.
116: test:
117: suffix: cube_0
118: args: -dm_coord_petscspace_degree 1
120: test:
121: suffix: cube_1
122: args: -dm_coord_petscspace_degree 2
124: test:
125: suffix: cube_2
126: args: -dm_refine 1 -dm_coord_petscspace_degree 1
128: test:
129: suffix: cube_3
130: args: -dm_refine 1 -dm_coord_petscspace_degree 2
132: testset:
133: args: -dm_plex_simplex 0 -dm_plex_box_faces 1,1 -dm_plex_box_lower -1.,-1. -dm_plex_box_upper 1.,1. \
134: -volume 4. -dm_coord_remap -dm_coord_map shear -dm_coord_map_params 0.0,0.0,3.0
136: test:
137: suffix: shear_0
138: args: -dm_coord_petscspace_degree 1
140: test:
141: suffix: shear_1
142: args: -dm_coord_petscspace_degree 2
144: test:
145: suffix: shear_2
146: args: -dm_refine 1 -dm_coord_petscspace_degree 1
148: test:
149: suffix: shear_3
150: args: -dm_refine 1 -dm_coord_petscspace_degree 2
152: testset:
153: args: -dm_plex_dim 3 -dm_plex_simplex 0 -dm_plex_box_faces 1,1,1 -dm_plex_box_lower -1.,-1.,-1. -dm_plex_box_upper 1.,1.,1. \
154: -volume 8. -dm_coord_remap -dm_coord_map shear -dm_coord_map_params 0.0,0.0,3.0,4.0
156: test:
157: suffix: shear_4
158: args: -dm_coord_petscspace_degree 1
160: test:
161: suffix: shear_5
162: args: -dm_coord_petscspace_degree 2
164: test:
165: suffix: shear_6
166: args: -dm_refine 1 -dm_coord_petscspace_degree 1
168: test:
169: suffix: shear_7
170: args: -dm_refine 1 -dm_coord_petscspace_degree 2
172: testset:
173: args: -dm_plex_simplex 0 -dm_plex_box_faces 1,1 -dm_plex_box_lower 1.,-1. -dm_plex_box_upper 3.,1. \
174: -dm_coord_petscspace_degree 1 -volume 8. -dm_coord_remap -dm_coord_map flare
176: test:
177: suffix: flare_0
178: args:
180: test:
181: suffix: flare_1
182: args: -dm_refine 2
184: testset:
185: # Area: 3/4 \pi = 2.3562
186: args: -dm_plex_simplex 0 -dm_plex_box_faces 1,1 -petscfe_default_quadrature_order 2 \
187: -volume 2.35619449019235 -dm_coord_remap -dm_coord_map annulus
189: test:
190: # Area: (a+b)/2 h = 3/\sqrt{2} (sqrt{2} - 1/\sqrt{2}) = 3/2
191: suffix: annulus_0
192: requires: double
193: args: -dm_coord_petscspace_degree 1 -volume 1.5
195: test:
196: suffix: annulus_1
197: requires: double
198: args: -dm_refine 3 -dm_coord_petscspace_degree 1 -tol .016
200: test:
201: suffix: annulus_2
202: requires: double
203: args: -dm_refine 3 -dm_coord_petscspace_degree 2 -tol .0038
205: test:
206: suffix: annulus_3
207: requires: double
208: args: -dm_refine 3 -dm_coord_petscspace_degree 3 -tol 2.2e-6
210: test:
211: suffix: annulus_4
212: requires: double
213: args: -dm_refine 2 -dm_coord_petscspace_degree 2 -tol .00012
215: test:
216: suffix: annulus_5
217: requires: double
218: args: -dm_refine 2 -dm_coord_petscspace_degree 3 -petscfe_default_quadrature_order 3 -tol 1.2e-7
220: testset:
221: # Volume: 4/3 \pi (8 - 1)/2 = 14/3 \pi = 14.66076571675238
222: args: -dm_plex_dim 3 -dm_plex_simplex 0 -dm_plex_box_faces 1,1,1 -dm_plex_box_lower -1.,-1.,-1. -dm_plex_box_upper 1.,1.,1. \
223: -volume 14.66076571675238 -dm_coord_remap -dm_coord_map shell
225: test:
226: suffix: shell_0
227: requires: double
228: args: -dm_refine 1 -dm_coord_petscspace_degree 1 -petscfe_default_quadrature_order 1 -volume 5.633164922 -tol 1.0e-7
230: test:
231: suffix: shell_1
232: requires: double
233: args: -dm_refine 2 -dm_coord_petscspace_degree 1 -petscfe_default_quadrature_order 1 -tol 3.1
235: test:
236: suffix: shell_2
237: requires: double
238: args: -dm_refine 2 -dm_coord_petscspace_degree 2 -petscfe_default_quadrature_order 2 -tol .1
240: test:
241: suffix: shell_3
242: requires: double
243: args: -dm_refine 2 -dm_coord_petscspace_degree 3 -petscfe_default_quadrature_order 3 -tol .02
245: test:
246: suffix: shell_4
247: requires: double
248: args: -dm_refine 2 -dm_coord_petscspace_degree 4 -petscfe_default_quadrature_order 4 -tol .006
250: test:
251: # Volume: 1.0
252: suffix: gmsh_q2
253: requires: double
254: args: -dm_plex_filename ${wPETSC_DIR}/share/petsc/datafiles/meshes/quads-q2.msh -dm_plex_gmsh_project -volume 1.0 -tol 1e-6
256: test:
257: # Volume: 1.0
258: suffix: gmsh_q3
259: requires: double
260: nsize: {{1 2}}
261: args: -dm_plex_filename ${wPETSC_DIR}/share/petsc/datafiles/meshes/quads-q3.msh -dm_plex_gmsh_project -volume 1.0 -tol 1e-6
263: test:
264: # Volume: 1.0
265: suffix: gmsh_3d_q2
266: requires: double
267: args: -dm_plex_filename ${wPETSC_DIR}/share/petsc/datafiles/meshes/cube_q2.msh -dm_plex_gmsh_project -volume 1.0 -tol 1e-6
269: test:
270: # Volume: 1.0
271: suffix: gmsh_3d_q3
272: requires: double
273: nsize: {{1 2}}
274: args: -dm_plex_filename ${wPETSC_DIR}/share/petsc/datafiles/meshes/cube_q3.msh -dm_plex_gmsh_project -volume 1.0 -tol 1e-6
276: TEST*/