1 static char help[] = "Tests for coarsening\n\n";
2
3 #include <petscdmplex.h>
4
5 typedef struct {
6 PetscBool uninterpolate; /* Uninterpolate the mesh at the end */
7 } AppCtx;
8
ProcessOptions(MPI_Comm comm,AppCtx * options)9 PetscErrorCode ProcessOptions(MPI_Comm comm, AppCtx *options)
10 {
11 PetscFunctionBegin;
12 options->uninterpolate = PETSC_FALSE;
13
14 PetscOptionsBegin(comm, "", "Meshing Problem Options", "DMPLEX");
15 PetscCall(PetscOptionsBool("-uninterpolate", "Uninterpolate the mesh at the end", "ex14.c", options->uninterpolate, &options->uninterpolate, NULL));
16 PetscOptionsEnd();
17 PetscFunctionReturn(PETSC_SUCCESS);
18 }
19
CreateMesh(MPI_Comm comm,AppCtx * user,DM * dm)20 PetscErrorCode CreateMesh(MPI_Comm comm, AppCtx *user, DM *dm)
21 {
22 PetscFunctionBegin;
23 PetscCall(DMCreate(comm, dm));
24 PetscCall(DMSetType(*dm, DMPLEX));
25 PetscCall(DMSetFromOptions(*dm));
26 PetscCall(DMViewFromOptions(*dm, NULL, "-orig_dm_view"));
27 if (user->uninterpolate) {
28 DM udm = NULL;
29
30 PetscCall(DMPlexUninterpolate(*dm, &udm));
31 PetscCall(DMDestroy(dm));
32 *dm = udm;
33 PetscCall(DMViewFromOptions(*dm, NULL, "-un_dm_view"));
34 }
35 PetscCall(DMViewFromOptions(*dm, NULL, "-dm_view"));
36 PetscFunctionReturn(PETSC_SUCCESS);
37 }
38
main(int argc,char ** argv)39 int main(int argc, char **argv)
40 {
41 DM dm;
42 AppCtx user;
43
44 PetscFunctionBeginUser;
45 PetscCall(PetscInitialize(&argc, &argv, NULL, help));
46 PetscCall(ProcessOptions(PETSC_COMM_WORLD, &user));
47 PetscCall(CreateMesh(PETSC_COMM_WORLD, &user, &dm));
48 PetscCall(DMDestroy(&dm));
49 PetscCall(PetscFinalize());
50 return 0;
51 }
52
53 /*TEST
54 test:
55 suffix: 0
56 requires: triangle
57 args: -dm_view -dm_refine 1 -dm_coarsen -dm_plex_check_symmetry -dm_plex_check_skeleton -dm_plex_check_faces
58
59 TEST*/
60