Actual source code: ex25.c
2: static char help[] = "Tests DMLocalToGlobal() for dof > 1\n\n";
4: #include <petscdm.h>
5: #include <petscdmda.h>
7: int main(int argc,char **argv)
8: {
9: PetscInt M = 6,N = 5,P = 4, m = PETSC_DECIDE,n = PETSC_DECIDE,p = PETSC_DECIDE,i,j,k,is,js,ks,in,jen,kn;
11: DM da;
12: Vec local,global;
13: PetscScalar ****l;
15: PetscInitialize(&argc,&argv,(char*)0,help);if (ierr) return ierr;
16: /* Create distributed array and get vectors */
17: DMDACreate3d(PETSC_COMM_WORLD,DM_BOUNDARY_NONE,DM_BOUNDARY_NONE,DM_BOUNDARY_NONE,DMDA_STENCIL_BOX,M,N,P,m,n,p,2,1,NULL,NULL,NULL,&da);
18: DMSetFromOptions(da);
19: DMSetUp(da);
20: DMCreateGlobalVector(da,&global);
21: DMCreateLocalVector(da,&local);
23: DMDAGetCorners(da,&is,&js,&ks,&in,&jen,&kn);
24: DMDAVecGetArrayDOF(da,local,&l);
25: for (i=is; i<is+in; i++) {
26: for (j=js; j<js+jen; j++) {
27: for (k=ks; k<ks+kn; k++) {
28: l[k][j][i][0] = 2*(i + j*M + k*M*N);
29: l[k][j][i][1] = 2*(i + j*M + k*M*N) + 1;
30: }
31: }
32: }
33: DMDAVecRestoreArrayDOF(da,local,&l);
34: DMLocalToGlobalBegin(da,local,ADD_VALUES,global);
35: DMLocalToGlobalEnd(da,local,ADD_VALUES,global);
37: VecView(global,PETSC_VIEWER_STDOUT_WORLD);
39: /* Free memory */
40: VecDestroy(&local);
41: VecDestroy(&global);
42: DMDestroy(&da);
43: PetscFinalize();
44: return ierr;
45: }
47: /*TEST
49: test:
50: filter: grep -v -i Process
51: output_file: output/ex25_1.out
53: test:
54: suffix: 2
55: nsize: 2
56: filter: grep -v -i Process
57: output_file: output/ex25_2.out
59: test:
60: suffix: 3
61: nsize: 3
62: filter: grep -v -i Process
63: output_file: output/ex25_2.out
65: test:
66: suffix: 4
67: nsize: 4
68: filter: grep -v -i Process
69: output_file: output/ex25_2.out
71: test:
72: suffix: 5
73: nsize: 5
74: filter: grep -v -i Process
75: output_file: output/ex25_2.out
77: test:
78: suffix: 6
79: nsize: 6
80: filter: grep -v -i Process
81: output_file: output/ex25_2.out
83: TEST*/