Newsgroups: comp.parallel.pvm
From: kowallik@ifh.de (Rainer Kowallik)
Subject: Re: shared memory pvm?
Keywords: does it exist
Organization: DESY-IfH
Date: 9 Nov 1994 11:34:04 GMT
Message-ID: <39qc3d$egb@dscomsa.desy.de>

In article <1994Nov3.182709.17271@cs.mun.ca>, henry@cs.mun.ca (Henry Hum) writes:
|> 	There was a reference to "a shared memory version of PVM now
|> supported by Dongarra et al."  in the comp.parallel newsgroup
|> in the response to the SUN SPARCCenter question.
|> 
|> 	My question is does anyone know of it or is it something like DoPVM?
|> Any help would be appreciated.
|> 
I didn't find a followup to this, so I try to answer the question.
Shared memory systems are supported (at least since PVM 3.3.3)
in the normal PVM distribution from netlib by simply specifying the
PVM_ARCH variable in your Makefile as "SGIMP". You may look at the
examples in pvm3/examples/*MP.
This works so far on our SGI-challenge (14 Processors),
but there are some Bugs left. It may be neccessary to clean up the
shared memory and semaphore IDs after your task has finished and
I was not able to use more than 10 Processors with PVM 3.3.4

Rainer

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Rainer Kowallik                                      email: kowallik@ifh.de 
postdoc at the Computing Center of DESY-IfH Zeuthen

