On Tue, Dec 11, 2007 at 10:27:32AM -0500, Bradley, Peter C. (MIS/CFD) wrote: > In OpenMPI, does MPI_Bsend always copy the message to the user-specified > buffer, or will it avoid the copy in situations where it knows the send can > complete? If the message size if smaller than eager limit Open MPI will not use user-specified buffer for it.
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Gleb.
