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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: 2013-08-08 00:25:24


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Hi Joshua,

On 23/07/13 19:34, Joshua Ladd wrote:

> The proposed solution that "we" (OMPI + SLURM) have come up with
> is to modify OMPI to support PMI2 and to use SLURM 2.6 which has
> support for PMI2 and is (allegedly) much more scalable than PMI1.
> Several folks in the combined communities are working hard, as we
> speak, trying to get this functional to see if it indeed makes a
> difference. Stay tuned, Chris. Hopefully we will have some data by
> the end of the week.

Is there any news on this?

We'd love to be able to test this out if we can as I currently see a
60% penalty with srun with my test NAMD job from our tame MM person.

thanks!
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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