On 10/28/2014 04:43 PM, Mark Hahn wrote:
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.
Yes, it was known to me. I had already known that FDR was worse than QDR
for latency, but I don't remember my source. I don't know if I'd
characterize it as "so terrible", though.
--
Prentice
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