Actual source code: ex20.c
1: static char help[] = "Tests DMDACreate3d() memory usage\n\n";
3: #include <petscdmda.h>
5: int main(int argc, char **argv)
6: {
7: DM dm;
8: Vec X, Y;
9: PetscInt dof = 10;
12: PetscInitialize(&argc, &argv, (char *)0, help);
13: PetscOptionsGetInt(NULL, NULL, "-dof", &dof, NULL);
14: DMDACreate3d(PETSC_COMM_WORLD, DM_BOUNDARY_NONE, DM_BOUNDARY_NONE, DM_BOUNDARY_NONE, DMDA_STENCIL_STAR, -128, -128, -128, PETSC_DECIDE, PETSC_DECIDE, PETSC_DECIDE, dof, 1, NULL, NULL, NULL, &dm);
15: DMSetFromOptions(dm);
16: DMSetUp(dm);
17: PetscMemoryTrace("DMDACreate3d ");
19: DMCreateGlobalVector(dm, &X);
20: PetscMemoryTrace("DMCreateGlobalVector");
21: DMCreateGlobalVector(dm, &Y);
22: PetscMemoryTrace("DMCreateGlobalVector");
24: VecDestroy(&X);
25: VecDestroy(&Y);
26: DMDestroy(&dm);
27: PetscFinalize();
28: return 0;
29: }