11   Mat           C;  in main()  local
32   PetscCall(MatCreate(PETSC_COMM_WORLD, &C));  in main()
33   PetscCall(MatSetSizes(C, PETSC_DECIDE, PETSC_DECIDE, N, N));  in main()
34   PetscCall(MatSetFromOptions(C));  in main()
35   PetscCall(MatSetUp(C));  in main()
36   PetscCall(MatGetOwnershipRange(C, &Istart, &Iend));  in main()
43       PetscCall(MatSetValues(C, 1, &Ii, 1, &J, &v, ADD_VALUES));  in main()
47       PetscCall(MatSetValues(C, 1, &Ii, 1, &J, &v, ADD_VALUES));  in main()
51       PetscCall(MatSetValues(C, 1, &Ii, 1, &J, &v, ADD_VALUES));  in main()
55       PetscCall(MatSetValues(C, 1, &Ii, 1, &J, &v, ADD_VALUES));  in main()
58     PetscCall(MatSetValues(C, 1, &Ii, 1, &Ii, &v, ADD_VALUES));  in main()
60   PetscCall(MatAssemblyBegin(C, MAT_FINAL_ASSEMBLY));  in main()
61   PetscCall(MatAssemblyEnd(C, MAT_FINAL_ASSEMBLY));  in main()
62   PetscCall(MatView(C, PETSC_VIEWER_STDOUT_WORLD));  in main()
66   PetscCall(MatView(C, viewer));  in main()
68   PetscCall(MatDestroy(&C));  in main()
80   PetscCall(MatCreate(PETSC_COMM_WORLD, &C));  in main()
81   PetscCall(MatLoad(C, viewer));  in main()
84   PetscCall(MatView(C, PETSC_VIEWER_STDOUT_WORLD));  in main()
87   PetscCall(MatDestroy(&C));  in main()