Actual source code: ex25.c
2: static char help[] = "Tests DALocalToGlocal() for dof > 1\n\n";
4: #include petscda.h
5: #include petscsys.h
9: int main(int argc,char **argv)
10: {
11: 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;
13: DA da;
14: Vec local,global;
15: PetscScalar ****l;
17: PetscInitialize(&argc,&argv,(char*)0,help);
19: /* Create distributed array and get vectors */
20: DACreate3d(PETSC_COMM_WORLD,DA_NONPERIODIC,DA_STENCIL_BOX,M,N,P,m,n,p,2,1,PETSC_NULL,PETSC_NULL,PETSC_NULL,&da);
21: DACreateGlobalVector(da,&global);
22: DACreateLocalVector(da,&local);
24: DAGetCorners(da,&is,&js,&ks,&in,&jen,&kn);
25: DAVecGetArrayDOF(da,local,&l);
26: for (i=is; i<is+in; i++) {
27: for (j=js; j<js+jen; j++) {
28: for (k=ks; k<ks+kn; k++) {
29: l[k][j][i][0] = 2*(i + j*M + k*M*N);
30: l[k][j][i][1] = 2*(i + j*M + k*M*N) + 1;
31: }
32: }
33: }
34: DAVecRestoreArrayDOF(da,local,&l);
35: DALocalToGlobal(da,local,ADD_VALUES,global);
37: VecView(global,PETSC_VIEWER_STDOUT_WORLD);
39: /* Free memory */
40: VecDestroy(local);
41: VecDestroy(global);
42: DADestroy(da);
43: PetscFinalize();
44: return 0;
45: }
46: