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

--
Joachim Worringen, Software Architect, Dolphin Interconnect Solutions
phone ++49/(0)228/324 08 17 - http://www.dolphinics.com
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