1 2 static char help[] = "Tests periodic boundary conditions for DMDA1d with periodic boundary conditions.\n\n"; 3 4 #include <petscdmda.h> 5 6 int main(int argc, char **argv) { 7 DM da; 8 Mat A; 9 const PetscInt dfill[4] = {0, 1, 0, 1}, ofill[4] = {0, 1, 1, 0}; 10 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 } 26 27 /*TEST 28 29 test: 30 31 test: 32 suffix: 2 33 nsize: 2 34 35 TEST*/ 36