1 2 static char help[] = "Tests error message in DMCreateColoring() with periodic boundary conditions. \n\n"; 3 4 #include <petscdm.h> 5 #include <petscdmda.h> 6 #include <petscmat.h> 7 8 int main(int argc, char **argv) 9 { 10 Mat J; 11 DM da; 12 MatFDColoring matfdcoloring = 0; 13 ISColoring iscoloring; 14 15 PetscFunctionBeginUser; 16 PetscCall(PetscInitialize(&argc, &argv, (char *)0, help)); 17 /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 18 Create distributed array (DMDA) to manage parallel grid and vectors 19 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ 20 PetscCall(DMDACreate2d(PETSC_COMM_WORLD, DM_BOUNDARY_PERIODIC, DM_BOUNDARY_NONE, DMDA_STENCIL_BOX, -5, -5, PETSC_DECIDE, PETSC_DECIDE, 1, 2, 0, 0, &da)); 21 PetscCall(DMSetFromOptions(da)); 22 PetscCall(DMSetUp(da)); 23 PetscCall(DMSetMatType(da, MATAIJ)); 24 PetscCall(DMCreateMatrix(da, &J)); 25 PetscCall(DMCreateColoring(da, IS_COLORING_LOCAL, &iscoloring)); 26 PetscCall(MatFDColoringCreate(J, iscoloring, &matfdcoloring)); 27 PetscCall(MatFDColoringSetUp(J, iscoloring, matfdcoloring)); 28 PetscCall(ISColoringDestroy(&iscoloring)); 29 30 /* free spaces */ 31 PetscCall(MatDestroy(&J)); 32 PetscCall(MatFDColoringDestroy(&matfdcoloring)); 33 PetscCall(DMDestroy(&da)); 34 PetscCall(PetscFinalize()); 35 return 0; 36 } 37