Actual source code: ex24.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,m = PETSC_DECIDE,n = PETSC_DECIDE,i,j,is,js,in,jen;
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: DACreate2d(PETSC_COMM_WORLD,DA_NONPERIODIC,DA_STENCIL_BOX,M,N,m,n,3,1,PETSC_NULL,PETSC_NULL,&da);
20: DACreateGlobalVector(da,&global);
21: DACreateLocalVector(da,&local);
23: DAGetCorners(da,&is,&js,0,&in,&jen,0);
24: DAVecGetArrayDOF(da,local,&l);
25: for (i=is; i<is+in; i++) {
26: for (j=js; j<js+jen; j++) {
27: l[j][i][0] = 3*(i + j*M);
28: l[j][i][1] = 3*(i + j*M) + 1;
29: l[j][i][2] = 3*(i + j*M) + 2;
30: }
31: }
32: DAVecRestoreArrayDOF(da,local,&l);
33: DALocalToGlobal(da,local,ADD_VALUES,global);
35: VecView(global,PETSC_VIEWER_STDOUT_WORLD);
37: /* Free memory */
38: VecDestroy(local);
39: VecDestroy(global);
40: DADestroy(da);
41: PetscFinalize();
42: return 0;
43: }
44: