On Tue, 28 Oct 2014, John Hearns wrote:
Here is a very good post from Glenn Lockwood regarding FDR versus dual-rail QDR:
http://glennklockwood.blogspot.co.uk/2013/05/fdr-infiniband-vs-dual-rail-qdr.html
indeed, very nice. though also quite surprising - is it known that
FDR is so terrible for latency? seems astonishing to me.
has anyone seen a good (broad, modern) study of the distribution
of MPI traffic? (packet sizes as well as whether awaited writes
are eager, etc)
regards, mark hahn.
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