xref: /petsc/src/dm/tests/ex26.c (revision d71ae5a4db6382e7f06317b8d368875286fe9008)
1c4762a1bSJed Brown 
2c4762a1bSJed Brown static char help[] = "Tests error message in DMCreateColoring() with periodic boundary conditions. \n\n";
3c4762a1bSJed Brown 
4c4762a1bSJed Brown #include <petscdm.h>
5c4762a1bSJed Brown #include <petscdmda.h>
6c4762a1bSJed Brown #include <petscmat.h>
7c4762a1bSJed Brown 
8*d71ae5a4SJacob Faibussowitsch int main(int argc, char **argv)
9*d71ae5a4SJacob Faibussowitsch {
10c4762a1bSJed Brown   Mat           J;
11c4762a1bSJed Brown   DM            da;
12c4762a1bSJed Brown   MatFDColoring matfdcoloring = 0;
13c4762a1bSJed Brown   ISColoring    iscoloring;
14c4762a1bSJed Brown 
15327415f7SBarry Smith   PetscFunctionBeginUser;
169566063dSJacob Faibussowitsch   PetscCall(PetscInitialize(&argc, &argv, (char *)0, help));
17c4762a1bSJed Brown   /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
18c4762a1bSJed Brown      Create distributed array (DMDA) to manage parallel grid and vectors
19c4762a1bSJed Brown   - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
209566063dSJacob Faibussowitsch   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));
219566063dSJacob Faibussowitsch   PetscCall(DMSetFromOptions(da));
229566063dSJacob Faibussowitsch   PetscCall(DMSetUp(da));
239566063dSJacob Faibussowitsch   PetscCall(DMSetMatType(da, MATAIJ));
249566063dSJacob Faibussowitsch   PetscCall(DMCreateMatrix(da, &J));
259566063dSJacob Faibussowitsch   PetscCall(DMCreateColoring(da, IS_COLORING_LOCAL, &iscoloring));
269566063dSJacob Faibussowitsch   PetscCall(MatFDColoringCreate(J, iscoloring, &matfdcoloring));
279566063dSJacob Faibussowitsch   PetscCall(MatFDColoringSetUp(J, iscoloring, matfdcoloring));
289566063dSJacob Faibussowitsch   PetscCall(ISColoringDestroy(&iscoloring));
29c4762a1bSJed Brown 
30c4762a1bSJed Brown   /* free spaces */
319566063dSJacob Faibussowitsch   PetscCall(MatDestroy(&J));
329566063dSJacob Faibussowitsch   PetscCall(MatFDColoringDestroy(&matfdcoloring));
339566063dSJacob Faibussowitsch   PetscCall(DMDestroy(&da));
349566063dSJacob Faibussowitsch   PetscCall(PetscFinalize());
35b122ec5aSJacob Faibussowitsch   return 0;
36c4762a1bSJed Brown }
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