[mvapich-discuss] use of parallel ib and ethernet interfaces

[David Minor]

Hi,

I have a cluster with parallel 1G ethernet and IB interfaces.  How can I configure/run mvapich2 so that I can switch between them for testing purposes?  Also, how do you configure/run on a cluster with mixed eth/ib nodes?

I'm a newbie to mvapich2, I've been using Intel MPI which does the interface selection automatically or allows you to specify which interface you're going to use with an environment variable.  I'm still using mpdboot and mpiexec, 

I already have mvapich up and running over ib only.

Regards,

David

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