65   Vec         solution;         /* global exact solution vector */  member
142   PetscCall(VecDuplicate(u, &appctx.solution));  in main()
265   PetscCall(VecDestroy(&appctx.solution));  in main()
345 PetscErrorCode ExactSolution(PetscReal t, Vec solution, AppCtx *appctx)  in ExactSolution()  argument
355   PetscCall(VecGetOwnershipRange(solution, &mybase, &myend));  in ExactSolution()
360   PetscCall(VecGetArray(solution, &s_localptr));  in ExactSolution()
375   PetscCall(VecRestoreArray(solution, &s_localptr));  in ExactSolution()
409   PetscCall(ExactSolution(time, appctx->solution, appctx));  in Monitor()
418     PetscCall(VecView(appctx->solution, PETSC_VIEWER_STDOUT_WORLD));  in Monitor()
424   PetscCall(VecAXPY(appctx->solution, -1.0, u));  in Monitor()
425   PetscCall(VecNorm(appctx->solution, NORM_2, &norm_2));  in Monitor()
427   PetscCall(VecNorm(appctx->solution, NORM_MAX, &norm_max));  in Monitor()
442   PetscCall(VecView(appctx->solution, appctx->viewer1));  in Monitor()
449     PetscCall(VecView(appctx->solution, PETSC_VIEWER_STDOUT_WORLD));  in Monitor()