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Subject: [OMPI users] how to select a specific network
From: Lydia Heck (lydia.heck_at_[hidden])
Date: 2008-01-11 06:36:23

I have a setup which contains one set of machines
with one nge and one e1000g network and of machines
with two e1000g networks configured. I am planning a
large run where all these computers will be occupied
with one job and the mpi communication should only go
over one specific network which is configured over
e1000g0 on the first set of machines and on e1000g1 on the
second set. I cannot use - for obvious reasons to either
include all of e1000g or to exclude part of e1000g - if that is
So I have to exclude or include on the internet number range.

Is there an obvious flag - which I have not yet found - to tell
mpirun to use one specific network?


Dr E L Heck

University of Durham
Institute for Computational Cosmology
Ogden Centre
Department of Physics
South Road

United Kingdom

e-mail: lydia.heck_at_[hidden]

Tel.: + 44 191 - 334 3628
Fax.: + 44 191 - 334 3645