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 { 8 DM da; 9 Mat A; 10 const PetscInt dfill[4] = {0, 1, 0, 1}, ofill[4] = {0, 1, 1, 0}; 11 12 PetscFunctionBeginUser; 13 PetscCall(PetscInitialize(&argc, &argv, (char *)0, help)); 14 PetscCall(DMDACreate1d(PETSC_COMM_WORLD, DM_BOUNDARY_PERIODIC, 7, 2, 1, NULL, &da)); 15 PetscCall(DMSetFromOptions(da)); 16 PetscCall(DMDASetBlockFills(da, dfill, ofill)); 17 PetscCall(DMSetUp(da)); 18 PetscCall(DMCreateMatrix(da, &A)); 19 PetscCall(MatView(A, PETSC_VIEWER_STDOUT_WORLD)); 20 PetscCall(PetscViewerPushFormat(PETSC_VIEWER_STDOUT_WORLD, PETSC_VIEWER_ASCII_INFO)); 21 PetscCall(MatView(A, PETSC_VIEWER_STDOUT_WORLD)); 22 PetscCall(MatDestroy(&A)); 23 PetscCall(DMDestroy(&da)); 24 PetscCall(PetscFinalize()); 25 return 0; 26 } 27 28 /*TEST 29 30 test: 31 32 test: 33 suffix: 2 34 nsize: 2 35 36 TEST*/ 37