Hi everybody, I got asked a question from Nathan: What should (MPI_T_pvar_read, _write, _reset, etc) return if bad handle is given? He gave this example of erroneous code: { MPI_T_pvar_session session1, session2; MPI_T_pvar_handle handle; char buffer[256]; int count; MPI_T_pvar_session_create (&session1); MPI_T_pvar_session_create (&session2); MPI_T_pvar_handle_alloc (session1, 0, NULL, &handle, &count); MPI_T_pvar_start (session1, handle); /* erroneus statement. should return MPI_T_ERR_INVALID_SESSION or MPI_T_ERR_INVALID_HANDLE */ MPI_T_pvar_read (session2, handle, buffer); } I argue it should return MPI_T_ERR_INVALID_HANDLE since the session is good, it's just that the handle doesn’t match. Do you all agree? If so, we should specify it since it's ambiguous. I believe this is an errata item. Kathryn ______________________________________________________________ Kathryn Mohror, [email protected], http://people.llnl.gov/mohror1 CASC @ Lawrence Livermore National Laboratory, Livermore, CA, USA