Hi Marc, Page 317, line 18: Can we change that to: "Each MPI process must call an MPI initialization routine, MPI_INIT or MPI_INIT_THREAD, exactly once." The way it's currently written seems a little awkward to me. P318 L7: I know you're not changing the current meaning, but that sentence seems to mean that processes must call MPI_FINALIZE if it calls MPI_ABORT. I suspect the idea is that a program that calls MPI_ABORT does not "exit" but rather "aborts," but the way it's written appears contradictory to me. Can we change that to: "Unless there has been a call to MPI_ABORT, before each process exits, the process must call MPI_FINALIZE. Each process must ensure that all pending nonblocking communications are (locally) complete before calling MPI_FINALIZE." P320, L1: Here you're adding the requirement that the MPI implementation must track any object it allocates. MPICH currently keeps track most objects (maybe all), but I don't think we should force that on an implementation. I feel users should clean up after themselves; any good programmer already does. Also, this requirement would mean that a buffer allocated with MPI_MEM_ALLOC is freed at MPI_FINALIZE. Do we really want to do that? -d On Feb 1, 2012, at 8:33 PM, Marc Snir wrote:

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