Actual source code: ex15.c
1: /*$Id: ex15.c,v 1.18 2001/08/07 03:02:26 balay Exp $*/
3: static char help[] = "Tests VecSetValuesBlocked() on sequential vectors.nn";
5: #include petscvec.h
6: #include petscsys.h
8: int main(int argc,char **argv)
9: {
10: int n = 9,ierr,size,bs = 3,indices[2],i;
11: PetscScalar values[6];
12: Vec x;
14: PetscInitialize(&argc,&argv,(char*)0,help);
15: MPI_Comm_size(PETSC_COMM_WORLD,&size);
17: if (size != 1) SETERRQ(1,"Must be run with one processor");
19: /* create vector */
20: VecCreateSeq(PETSC_COMM_SELF,n,&x);
21: VecSetBlockSize(x,bs);
23: for (i=0; i<6; i++) values[i] = 4.0*i;
24: indices[0] = 0; indices[1] = 2;
25: VecSetValuesBlocked(x,2,indices,values,INSERT_VALUES);
27: VecAssemblyBegin(x);
28: VecAssemblyEnd(x);
30: /*
31: Resulting vector should be 0 4 8 0 0 0 12 16 20
32: */
33: VecView(x,PETSC_VIEWER_STDOUT_WORLD);
35: VecDestroy(x);
37: PetscFinalize();
38: return 0;
39: }
40: