Actual source code: ex52.c

  1: static char help[] = "Tests periodic boundary conditions for DMDA1d with periodic boundary conditions.\n\n";

  3: #include <petscdmda.h>

  5: int main(int argc, char **argv)
  6: {
  7:   DM             da;
  8:   Mat            A;
  9:   const PetscInt dfill[4] = {0, 1, 0, 1}, ofill[4] = {0, 1, 1, 0};

 11:   PetscFunctionBeginUser;
 12:   PetscCall(PetscInitialize(&argc, &argv, (char *)0, help));
 13:   PetscCall(DMDACreate1d(PETSC_COMM_WORLD, DM_BOUNDARY_PERIODIC, 7, 2, 1, NULL, &da));
 14:   PetscCall(DMSetFromOptions(da));
 15:   PetscCall(DMDASetBlockFills(da, dfill, ofill));
 16:   PetscCall(DMSetUp(da));
 17:   PetscCall(DMCreateMatrix(da, &A));
 18:   PetscCall(MatView(A, PETSC_VIEWER_STDOUT_WORLD));
 19:   PetscCall(PetscViewerPushFormat(PETSC_VIEWER_STDOUT_WORLD, PETSC_VIEWER_ASCII_INFO));
 20:   PetscCall(MatView(A, PETSC_VIEWER_STDOUT_WORLD));
 21:   PetscCall(MatDestroy(&A));
 22:   PetscCall(DMDestroy(&da));
 23:   PetscCall(PetscFinalize());
 24:   return 0;
 25: }

 27: /*TEST

 29:    test:

 31:    test:
 32:       suffix: 2
 33:       nsize: 2

 35: TEST*/