8   Vec       X, Y;  in main()  local
17   PetscCall(MatCreateVecs(A, &X, &Y));  in main()
22   PetscCall(MatMult(A, X, Y));  in main()
23   PetscCall(VecNorm(Y, NORM_2, &ynorm));  in main()
46   PetscCall(MatGetDiagonal(A, Y));  in main()
50   PetscCall(MatSolve(Af, X, Y));  in main()
51   PetscCall(VecNorm(Y, NORM_2, &ynorm));  in main()
55   PetscCall(MatSolve(A, X, Y));  in main()
56   PetscCall(VecNorm(Y, NORM_2, &ynorm));  in main()
60   PetscCall(MatSOR(A, X, 1.5, SOR_FORWARD_SWEEP, 0.0, 1, 1, Y));  in main()
61   PetscCall(VecNorm(Y, NORM_2, &ynorm));  in main()
73   PetscCall(VecDestroy(&Y));  in main()