1 static char help[] = "Tests DMDACreate3d() memory usage\n\n"; 2 3 #include <petscdmda.h> 4 5 int main(int argc,char **argv) 6 { 7 DM dm; 8 Vec X,Y; 9 PetscInt dof = 10; 10 11 PetscFunctionBeginUser; 12 PetscCall(PetscInitialize(&argc,&argv,(char*)0,help)); 13 PetscCall(PetscOptionsGetInt(NULL,NULL,"-dof",&dof,NULL)); 14 PetscCall(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 PetscCall(DMSetFromOptions(dm)); 16 PetscCall(DMSetUp(dm)); 17 PetscCall(PetscMemoryTrace("DMDACreate3d ")); 18 19 PetscCall(DMCreateGlobalVector(dm,&X)); 20 PetscCall(PetscMemoryTrace("DMCreateGlobalVector")); 21 PetscCall(DMCreateGlobalVector(dm,&Y)); 22 PetscCall(PetscMemoryTrace("DMCreateGlobalVector")); 23 24 PetscCall(VecDestroy(&X)); 25 PetscCall(VecDestroy(&Y)); 26 PetscCall(DMDestroy(&dm)); 27 PetscCall(PetscFinalize()); 28 return 0; 29 } 30