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What about MPI_T_PVAR_HANDLE_FREE? That takes a (session, handle) tuple, but doesn't have the text about MPI_T_ERR_INVALID_HANDLE.

I will add this to the handle_free text. Alternatively, I could put this text right after the handle_alloc text:

For any routine that takes both handle and session arguments, if the handle argument passed in is not associated with the session argument, MPI_T_ERR_INVALID_HANDLE is returned.

Actually, I don't think that is specific enough. How about: For all routines in the rest of this section that take both handle and session arguments, if the handle argument passed in is not associated with the session argument, MPI_T_ERR_INVALID_HANDLE is returned. Kathryn ______________________________________________________________ Kathryn Mohror, [email protected], http://people.llnl.gov/mohror1 CASC @ Lawrence Livermore National Laboratory, Livermore, CA, USA