Newsgroups: comp.parallel.mpi
From: Jon Eva <jeva@abingdon.geoquest.slb.com>
Subject: Inter-program communication
Organization: Geoquest
Date: Fri, 27 Sep 1996 09:57:00 +0000
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Message-ID: <324BA4EC.41C6@abingdon.geoquest.slb.com>

Dear All,

I'm just starting to look at MPI to see if it's a viable alternative
to PVM (which I find too buggy).

What I want to do is fairly simple, but I've been poring over the MPI
manuals for days now without getting anywhere so I thought I'd ask this
group.

Basically I have two completely separate programs that need to
communicate. In PVM this can be achieved by spawning one from the
other, which I know MPI can't do.

As far as I can see the only way for me to do this in MPI is to merge
the programs into one huge great unwieldy executable, which isn't
really feasible as the programs are both very large and the resulting
executable would be much more than half my memory limits.

Am I missing something very simple?, or is MPI only really usable in
parallel applications?

Thanks in advance for your help,

Jon Eva, Schlumberger Geoquest

