MPICH Question

Brandon George bcg at ou.edu
Tue Jul 22 10:58:12 EDT 2003


On Tue, Jul 22, 2003 at 10:42:19AM -0400, Alex DeCaria wrote:
> I have a question about using MPICH.  I probably have no business asking you
> this question since I'm not using mpiexec, but I 've had no luck getting
> answers elsewhere, and hope you can help.
> 
> I have installed MPICH on my shared-memory processor (a Dell Enterprise
> server with 4-Xeon 2.4 GHz processors, running Red Hat Linux).  I configured
> it using the "--with-device=ch_p4" and "--with-comm=shared options".
> However, when using mpirun my applications are still running in
> distributed-memory mode, rather than shared-memory mode.
> 
> Any ideas what may be wrong?
> 
> Any help you can give me is greatly appreciated, and thanks for your time.
> 
> Sincerely,
> 
> Alex DeCaria
> Department of Earth Sciences
> P.O. Box 1002
> Millersville University
> Millersville, PA 17551-0302
> (717) 871-4739
> 
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> mpiexec at osc.edu
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Hi Alex,

I think you are looking for --with-device=ch_shmem.

-brandon



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