xref: /petsc/src/dm/tests/ex26.c (revision 327415f76d85372a4417cf1aaa14db707d4d6c04)
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 
8c4762a1bSJed Brown int main(int argc,char **argv)
9c4762a1bSJed Brown {
10c4762a1bSJed Brown   Mat            J;
11c4762a1bSJed Brown   DM             da;
12c4762a1bSJed Brown   MatFDColoring  matfdcoloring = 0;
13c4762a1bSJed Brown   ISColoring     iscoloring;
14c4762a1bSJed Brown 
15*327415f7SBarry 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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