I am not sure this is relavent to your question. I do have an computational fluid dynamics application which solves fluid flow problems.
Recently I was able to run this code up to 2048 processors on the Indiana University's IBM e1350 BigRed cluster. I did use 1.2.3 version of the OpenMPI. I am happy about the preformance I did get. (I am using point-to-point sendrecv in this code).
Cisco is not yet testing that large, but we plan to shortly start
testing at np>=128 (I'm waiting for an internal cluster within Cisco
to be setup properly).
On Sep 11, 2007, at 5:31 PM, Rolf.Vandevaart@sun.com wrote:
> I am curious which tests are being used when running tests on larger
> clusters. And by larger clusters, I mean anything with np > 128.
> (Although I realize that is not very large, but it is bigger than most
> of the clusters I assume tests are being run on)
> I ask this because I planned on using some of the intel tests, but
> clearly have limitations starting at np=64.
> To avoid mailing list clutter, feel free to just email me and I will
> devel mailing list
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