On Aug 15, 2005, at 8:37 AM, Gleb Natapov wrote:

This is actually an erroneous MPI program.  MPI specifically states
that a buffer can be used for exactly one communication at a time.

This is actually the way MPI_Bcast works right now IMHO :)

Shhh!!

*Users* aren't allowed to do this. But we, all-knowing MPI implementors are. ;-)

But this is certainly a fair point -- we do this kind of behavior internally.

--
{+} Jeff Squyres
{+} The Open MPI Project
{+} http://www.open-mpi.org/

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