13   Vec          xx, s1, s2;  in main()  local
85     PetscCall(VecCreateSeq(PETSC_COMM_SELF, mm, &xx));  in main()
86     PetscCall(VecDuplicate(xx, &s1));  in main()
87     PetscCall(VecDuplicate(xx, &s2));  in main()
89       PetscCall(VecSetRandom(xx, rand));  in main()
90       PetscCall(MatMult(A, xx, s1));  in main()
91       PetscCall(MatMult(sA, xx, s2));  in main()
97     PetscCall(VecDestroy(&xx));  in main()
142     PetscCall(VecCreateSeq(PETSC_COMM_SELF, mm, &xx));  in main()
143     PetscCall(VecDuplicate(xx, &s1));  in main()
144     PetscCall(VecDuplicate(xx, &s2));  in main()
146       PetscCall(VecSetRandom(xx, rand));  in main()
147       PetscCall(MatMult(submatA[i], xx, s1));  in main()
148       PetscCall(MatMult(submatsA[i], xx, s2));  in main()
154     PetscCall(VecDestroy(&xx));  in main()
166     PetscCall(VecCreateSeq(PETSC_COMM_SELF, mm, &xx));  in main()
167     PetscCall(VecDuplicate(xx, &s1));  in main()
168     PetscCall(VecDuplicate(xx, &s2));  in main()
170       PetscCall(VecSetRandom(xx, rand));  in main()
171       PetscCall(MatMult(submatA[i], xx, s1));  in main()
172       PetscCall(MatMult(submatsA[i], xx, s2));  in main()
178     PetscCall(VecDestroy(&xx));  in main()