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Subject: Re: [OMPI users] profile the performance of a MPI code: how much traffic is being generated?
From: Matthieu Brucher (matthieu.brucher_at_[hidden])
Date: 2009-09-29 02:29:44


Hi,

You can try MPE (free) or Vampir (not free, but can be integrated
inside OpenMPI).

Matthieu

2009/9/29 Rahul Nabar <rpnabar_at_[hidden]>:
> I have a code that seems to run about 40% faster when I bond together
> twin eth interfaces. The question, of course, arises: is it really
> producing so much traffic to keep twin 1 Gig eth interfaces busy? I
> don't really believe this but need a way to check.
>
> What are good tools to monitior the MPI performance of a running job.
> Basically what throughput loads is it imposing on the eth interfaces.
> Any suggestions?
>
> The code does not seem to produce much of disk I/O as profiled via
> strace (if at all NFS I/O is a bottleneck).
>
> --
> Rahul
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>

-- 
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