8   Vec           xx, s1, s2, yy;  in main()  local
30   PetscCall(VecDuplicate(xx, &s1));  in main()
110     PetscCall(MatMult(A, xx, s1));  in main()
112     PetscCall(VecNorm(s1, NORM_2, &s1norm));  in main()
168     PetscCall(MatBackwardSolve(Fact, xx, s1));  in main()
170     PetscCall(VecScale(s1, -1.0));  in main()
171     PetscCall(MatMultAdd(A, s1, yy, yy));  in main()
184     PetscCall(MatSolveAdd(A, xx, yy, s1));  in main()
185     PetscCall(VecNorm(s1, NORM_2, &s1norm));  in main()
194     PetscCall(VecSetRandom(s1, rdm));  in main()
195     PetscCall(VecCopy(s2, s1));  in main()
197     PetscCall(MatSolveAdd(A, xx, s1, s1));  in main()
198     PetscCall(VecNorm(s1, NORM_2, &s1norm));  in main()
208     PetscCall(MatSolve(A, xx, s1));  in main()
209     PetscCall(VecNorm(s1, NORM_2, &s1norm));  in main()
220       PetscCall(MatSolveTranspose(A, xx, s1));  in main()
221       PetscCall(VecNorm(s1, NORM_2, &s1norm));  in main()
233   PetscCall(VecDestroy(&s1));  in main()