Newsgroups: comp.parallel.pvm
From: "Dr A.C. Marshall" <adamm>
Subject: Re: Master and Slaves on the same Machine?
Organization: The University of Liverpool
Date: Thu, 13 Jun 1996 14:24:19 GMT
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Message-ID: <Dsy00J.A4z@liverpool.ac.uk>

babbar@morgan.com (Daveder Babbar) wrote:
>Hello,
>We are in the process of migrating our servers from SunOS cluster to
>Sun MP platform. Right now we just want to do a naive port i.e. with
>minimal changes to the existing configuration. That brings up an interesting
>question regarding PVM configuration: is it possible to run a master process
>and multiple slave processes on the same machine? What kind of adjustmets, if
>any, will be required? Is a single pvmd sufficient for this configuration?
>Any thoughts, suggestions, warnings are welcome. 
>

Dear Daveder,

You can run SUN4SOL2 programs on SUNMP machines with no alteration. Starting
the daemon on your SUNMP machine (or any architecture for that matter) will
allow you spawn as many pvm processes as you want BUT you must fool your SUNMP
box into thinking that it is a SUN4SOL2 box. This is doone by explicitly
setting PVM_ARCH and NOT using the pvmgetarch utility.

Warnings: I claim that SUNMP implementation is buggy. We have problems of jobs
runing away with machine cycles so you may be better off using SUN4SOL2 anyway. 

Adam (adamm@liv.ac.uk)


