Actual source code: ex24.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,m = PETSC_DECIDE,n = PETSC_DECIDE,i,j,is,js,in,jen;
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: DACreate2d(PETSC_COMM_WORLD,DA_NONPERIODIC,DA_STENCIL_BOX,M,N,m,n,3,1,PETSC_NULL,PETSC_NULL,&da);
21: DACreateGlobalVector(da,&global);
22: DACreateLocalVector(da,&local);
24: DAGetCorners(da,&is,&js,0,&in,&jen,0);
25: DAVecGetArrayDOF(da,local,&l);
26: for (i=is; i<is+in; i++) {
27: for (j=js; j<js+jen; j++) {
28: l[j][i][0] = 3*(i + j*M);
29: l[j][i][1] = 3*(i + j*M) + 1;
30: l[j][i][2] = 3*(i + j*M) + 2;
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: