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 PetscErrorCode ierr; 10 PetscInt dof = 10; 11 12 ierr = PetscInitialize(&argc,&argv,(char*)0,help);if (ierr) return ierr; 13 CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-dof",&dof,NULL)); 14 CHKERRQ(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 CHKERRQ(DMSetFromOptions(dm)); 16 CHKERRQ(DMSetUp(dm)); 17 CHKERRQ(PetscMemoryTrace("DMDACreate3d ")); 18 19 CHKERRQ(DMCreateGlobalVector(dm,&X)); 20 CHKERRQ(PetscMemoryTrace("DMCreateGlobalVector")); 21 CHKERRQ(DMCreateGlobalVector(dm,&Y)); 22 CHKERRQ(PetscMemoryTrace("DMCreateGlobalVector")); 23 24 CHKERRQ(VecDestroy(&X)); 25 CHKERRQ(VecDestroy(&Y)); 26 CHKERRQ(DMDestroy(&dm)); 27 ierr = PetscFinalize(); 28 return ierr; 29 } 30