Actual source code: ex25.c
2: static char help[] = "Tests DALocalToGlocal() for dof > 1\n\n";
4: #include petscda.h
8: int main(int argc,char **argv)
9: {
10: 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;
12: DA da;
13: Vec local,global;
14: PetscScalar ****l;
16: PetscInitialize(&argc,&argv,(char*)0,help);
18: /* Create distributed array and get vectors */
19: DACreate3d(PETSC_COMM_WORLD,DA_NONPERIODIC,DA_STENCIL_BOX,M,N,P,m,n,p,2,1,PETSC_NULL,PETSC_NULL,PETSC_NULL,&da);
20: DACreateGlobalVector(da,&global);
21: DACreateLocalVector(da,&local);
23: DAGetCorners(da,&is,&js,&ks,&in,&jen,&kn);
24: DAVecGetArrayDOF(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: DAVecRestoreArrayDOF(da,local,&l);
34: DALocalToGlobal(da,local,ADD_VALUES,global);
36: VecView(global,PETSC_VIEWER_STDOUT_WORLD);
38: /* Free memory */
39: VecDestroy(local);
40: VecDestroy(global);
41: DADestroy(da);
42: PetscFinalize();
43: return 0;
44: }
45: