[Beowulf] Correct networking solution for 16-core nodes
joachim at dolphinics.com
Fri Aug 4 02:35:56 PDT 2006
Greg Lindahl wrote:
> Vincent wrote:
>> Only quadrics is clear about its switch latency (probably
>> competitors have a worse one). It's 50 us for 1 card.
> We have clearly stated that the Mellanox switch is around 200 usec per
> hop. Myricom's number is also well known.
I think Vincent meant another latency, not the per-hop latency in the
switches: the time to switch between different processes communicating
to the NIC. I never heard of this latency being specified, nor being
substantial. Can anybody comment?
Joachim Worringen, Software Architect, Dolphin Interconnect Solutions
phone ++49/(0)228/324 08 17 - http://www.dolphinics.com
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