Newsgroups: comp.parallel.mpi
From: Chang Song <song@ctc.com>
Subject: MPICH:ADI:pkt_size Question
Organization: Concurrent Technologies Corp.
Date: Mon, 21 Oct 1996 14:22:15 -0400
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Message-ID: <326BBF57.41C6@ctc.com>

Hi. Can someone help me with this?
I am using latest version of MPICH.
I tried to change ADI compile time option pkt_size.
I notice that messages under this size, even if I use MPI_Ibsend, it
blocks
until it is delivered.
SO what is exactly short message and long message protocol?
Should I keep this as low as possible?
I think the default is 125K.


-- 
Chang Song                              E-Mail: song@ctc.com
Concurrent Technologies Corporation
1450 Scalp Avenue                       Phone:  814-269-6515
Johnstown, PA 15904                     Fax:    814-269-2666

