185       Vec       x = NULL, b1 = NULL, b2 = NULL;  in main()  local
201       PetscCall(MatCreateVecs(A, &x, &b1));  in main()
204         PetscCall(VecSetRandom(b1, NULL));  in main()
207         PetscCall(VecSet(b1, -14.2));  in main()
209       PetscCall(VecDuplicate(b1, &b2));  in main()
210       PetscCall(VecCopy(b1, b2));  in main()
211       PetscCall(PetscObjectSetName((PetscObject)b1, "A_B1"));  in main()
214         PetscCall(VecDestroy(&b1));  in main()
217         PetscCall(MatZeroRowsIS(A, zr, diag, x, b1));  in main()
220         PetscCall(MatZeroRowsColumnsIS(A, zr, diag, x, b1));  in main()
244       if (b1) {  in main()
247         PetscCall(VecViewFromOptions(b1, NULL, "-view_b"));  in main()
249         PetscCall(VecDuplicate(b1, &b));  in main()
250         PetscCall(VecCopy(b1, b));  in main()
256       PetscCall(VecDestroy(&b1));  in main()