From: Luc.Vereecken@chem.kuleuven.ac.be (Luc Vereecken)
Newsgroups: comp.parallel.mpi
Subject: Re: running MPI under different operating systems......
Date: Mon, 09 Nov 1998 17:44:55 GMT
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On Mon, 9 Nov 1998 13:55:13 +0000 (GMT), cherjp@leeds.ac.uk (Richard
Parrott) wrote:

>Can anyone help?????
>
>My department currently has sun's and SGI machines, and I am working
>them through a PC under Linux. I would like to know if MPI, installed
>using linux, can be used to impliment Parallel processing from the PC
>machine and either the SUN's (running solaris 2.4) or the SGI's (running
>IRIX 5.0)or even both at the same time?

If your MPI implementation runs on all these machines (e.g. MPICH)
then it should be possible to do that. I have a similar setup, with
Linux PC's, a biprocessor SUN, and several RS6000 (different speeds,
chipsets, and OS). Compile and install MPICH on all of them, and then
compile your program on each different platform, using the mpi
libraries for that platform. Then you can start the calculation over
the P4 device from any machine, provided, of course, that your rhosts
etc. is setup properly. I found that the easiest way of working was
through the use of the -p4pg procgroup file, where you can specify
which executable is to run on which machine. 

Luc