[Beowulf] InfiniBand channel bundling?

Christopher Samuel samuel at unimelb.edu.au
Tue Oct 28 19:49:10 PDT 2014

On 29/10/14 07:43, Mark Hahn wrote:

> indeed, very nice.  though also quite surprising - is it known that FDR
> is so terrible for latency?  seems astonishing to me.

It is indeed known, and (from memory) it's due to the change in the
signalling in FDR to 64/66.

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

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