18.337 WebMeeting


Message from: Edward Keyes (eakeyes@MIT.EDU)
About: MPI callbacks?

Tue, 11 Feb 97 12:16:55 EST

  • Next message: Li Ju: "Test"
    Does anyone know how or if one could use callback procedures
    in MPI? For instance, if you wanted to pass a message from
    one process to others transparently, you would want to post
    an IRecv and attach a callback procedure that would execute
    the ISend to the next process in line as soon as the receive
    was completed.

    Without this, it looks like any sort of non-blocking
    collective operation is doomed to blocking behavior on
    intermediate processes, unless you manually intersperse
    lots of IProbe commands in your code.
    ----
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