[Users] MXM/FCA results

Susan Coulter markus at lanl.gov
Mon May 6 16:09:27 PDT 2013


Many moons ago there was a brief discussion on this list about MXM/FCA testing.
I promised to send the results of my testing once I got things working.
It's been working for quite a while on a ~600 node QDR cluster and the results are pretty remarkable.
Attached are several graphs of 2 different MPI synthetics I use to test IB performance - ring and scatter.

Scatter shows pretty good performance gains with smaller message sizes - larger message sizes pretty much stink.
Ring shows significant performance increases across the board, with a couple odd results that may need more analysis/testing.



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Susan Coulter
HPC-3 Network/Infrastructure
505-667-8425
Increase the Peace...
An eye for an eye leaves the whole world blind
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