Actual source code: ex26.c
petsc-3.7.3 2016-08-01
2: static char help[] = "Tests error message in DMCreateColoring() with periodic boundary conditions. \n\n";
5: #include <petscdm.h>
6: #include <petscdmda.h>
7: #include <petscmat.h>
11: int main(int argc,char **argv)
12: {
13: Mat J;
15: DM da;
16: MatFDColoring matfdcoloring = 0;
17: ISColoring iscoloring;
19: PetscInitialize(&argc,&argv,(char*)0,help);
20: /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
21: Create distributed array (DMDA) to manage parallel grid and vectors
22: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
23: DMDACreate2d(PETSC_COMM_WORLD,DM_BOUNDARY_PERIODIC, DM_BOUNDARY_NONE,DMDA_STENCIL_BOX,-5,-5,
24: PETSC_DECIDE,PETSC_DECIDE,1,2,0,0,&da);
25: DMSetMatType(da,MATAIJ);
26: DMCreateMatrix(da,&J);
27: DMCreateColoring(da,IS_COLORING_GHOSTED,&iscoloring);
28: MatFDColoringCreate(J,iscoloring,&matfdcoloring);
29: MatFDColoringSetUp(J,iscoloring,matfdcoloring);
30: ISColoringDestroy(&iscoloring);
32: /* free spaces */
33: MatDestroy(&J);
34: MatFDColoringDestroy(&matfdcoloring);
35: DMDestroy(&da);
36: PetscFinalize();
37: return(0);
38: }