From: "Alain Coetmeur" <alain.coetmeur@icdc.caissedesdepots.fr>
Newsgroups: comp.parallel.mpi
Subject: Re: How many to allocate buffer sizes in Nonblocking,
    bufferd-mode communication?
Date: Thu, 26 Nov 1998 10:02:08 +0100
Organization: Informatique-CDC
Message-Id: <73j5jv$f01@puligny.idt.cdc.fr>
References: <36595769.355C28C4@juno.cs.pusan.ac.kr>
    <365BDC0D.B6BF9081@cranfield.ac.uk>
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Yon Han CHONG a écrit dans le message <365BDC0D.B6BF9081@cranfield.ac.uk>...
>"Jun, Sun-Mi" wrote:
>>
>> Hi Everyone
>>
>> I have been implementing a Nonblocking communication program.
>> (I'm using MPI_Buffer_attach(), MPI_Ibsend(), MPI_Buffer_dettach() )

why use bufferered nonblocking send ?
I'm not expert, nor experienced, but in theory
you might take advantage of synchronous non blocking send,
which don't use bufferes, but use instead the source data.

buffered non blocking can be useful IMHO only
if you wan't to reuse the sent data as soon as possible,
but in this cas, why use the nonblocking mode...

am i wrong in my reasoning ?