1 2 static char help[] = "Tests loading DM vector from file.\n\n"; 3 4 /* 5 ex14.c writes out the DMDA and vector read by this program. 6 */ 7 8 #include <petscdmda.h> 9 10 int main(int argc, char **argv) 11 { 12 PetscInt M = PETSC_DECIDE, N = PETSC_DECIDE; 13 DM da; 14 Vec global; 15 PetscViewer bviewer; 16 17 PetscFunctionBeginUser; 18 PetscCall(PetscInitialize(&argc, &argv, (char *)0, help)); 19 PetscCall(PetscOptionsGetInt(NULL, NULL, "-M", &M, NULL)); 20 PetscCall(PetscOptionsGetInt(NULL, NULL, "-N", &N, NULL)); 21 22 PetscCall(PetscViewerBinaryOpen(PETSC_COMM_WORLD, "daoutput", FILE_MODE_READ, &bviewer)); 23 PetscCall(DMCreate(PETSC_COMM_WORLD, &da)); 24 25 PetscCall(DMLoad(da, bviewer)); 26 PetscCall(DMCreateGlobalVector(da, &global)); 27 PetscCall(VecLoad(global, bviewer)); 28 PetscCall(PetscViewerDestroy(&bviewer)); 29 30 PetscCall(VecView(global, PETSC_VIEWER_DRAW_WORLD)); 31 32 /* Free memory */ 33 PetscCall(VecDestroy(&global)); 34 PetscCall(DMDestroy(&da)); 35 PetscCall(PetscFinalize()); 36 return 0; 37 } 38