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From: Warner Yuen (wyuen_at_[hidden])
Date: 2004-11-24 13:31:15


You should be able to specify which interface to use at runtime, i.e.

Running across ethernet: mpirun -ssi rpi tcp C my_mpi_program

Running across myrinet: mpirun -ssi rpi gm C my_mpi_program

If you don't specify anything, I think that it may default to using
myrinet, but I don't recall.

Warner Yuen
Research Computing Consultant
Apple Computer
email: wyuen_at_[hidden]
Tel: 408.718.2859
Fax: 408.718.0133

On Nov 24, 2004, at 9:43 AM, Maillist wrote:

> Hi, All,
>
> If I have a cluster which has both Ethernet and Myrinet network
> connections, when I run the MPI program, how could I decide to run it
> over TCP or GM?
> If I configure the LAM/MPI with --with-rpi=gm, does this mean it only
> supports GM?
>
> Thanks a lot. _______________________________________________
> This list is archived at http://www.lam-mpi.org/MailArchives/lam/
>