Newsgroups: comp.parallel.pvm
From: Supriya Uchil <suchil@mtu.edu>
Subject: Help again- Overlapping computation and communication
Organization: Michigan Technological University
Date: Mon, 06 Apr 1998 13:07:32 -0400
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Message-ID: <35290BD4.49FF@mtu.edu>

Hi,


	Thabks for the real quick responses. I have just started on MPI and
really need all the help. I am working on a Sparc - Ultra and using
MPICH. My code goes like this


	Sending side

		loop
		{
			MPI_isend
			MPI_irecv
				compute
			MPI_wait
		}
	
	Recieving side
	
		loop
		{
			MPI_irecv
				compute
			MPI_Wait
			MPI_isend
		}


	I noticed that the the message take around a second to reach, so I
inserted a computation of approximately one second. The overall time
that the whole thing takes now is 2 seconds so I presumed that there
must be no overlap. Thanks again.

						Supriya