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From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2005-08-15 07:40:09


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/