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Subject: Re: [OMPI users] How are IP addresses determined?
From: Barnet Wagman (bw_at_[hidden])
Date: 2011-02-17 12:39:10

> I would strongly recommend that all machines involved in a Open MPI job are at the same geographical location. This includes all nodes doing computation but also the "submission host". For EC2 this would mean all in the same region.
That's certainly a good idea. Eventually I hope to use ec2's 'cluster'
option, which should keep every geographically together.