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Subject: Re: [OMPI devel] Open-MPI build of NAMD launched from srun over 20% slowed than with mpirun
From: Christopher Samuel (samuel_at_[hidden])
Date: 2013-09-02 02:57:07


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On 31/08/13 02:42, Ralph Castain wrote:

> Hi Chris et al

Hiya,

> We did some work on the OMPI side and removed the O(N) calls to
> "get", so it should behave better now. If you get the chance,
> please try the 1.7.3 nightly tarball. We hope to officially release
> it soon.

Thanks so much, I'll get our folks to rebuild a test version of NAMD
against 1.7.3a1r29103 which I built this afternoon.

It might be some time until I can get a test job of a suitable size to
run though, looks like our systems are flat out!

All the best,
Chris
- --
 Christopher Samuel Senior Systems Administrator
 VLSCI - Victorian Life Sciences Computation Initiative
 Email: samuel_at_[hidden] Phone: +61 (0)3 903 55545
 http://www.vlsci.org.au/ http://twitter.com/vlsci

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