[Beowulf] typical latencies for gigabit ethernet

Rahul Nabar rpnabar at gmail.com
Mon Jun 29 12:10:15 PDT 2009

On Sat, Jun 27, 2009 at 5:21 PM, Mark Hahn<hahn at mcmaster.ca> wrote:
> seems to be fairly variable.  let's say 50 +- 20 microseconds.
>> Setups is a simple: server<-->switch<-->server.
> it may be instructive to try a server-server test case.

Hmm...well I must be doing something terribly wrong then. Our
latencies are in the 140 microseconds range (as revealed by ping)

What's a typical debug protocol? What should I be checking for?


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