[Beowulf] Re: typical latencies for gigabit ethernet
gerry.creager at tamu.edu
Sun Jun 28 09:15:23 PDT 2009
Dave Love wrote:
> Rahul Nabar <rpnabar at gmail.com> writes:
>> What are typical latencies I ought to be seeing with gigabit eth?
> I have some data at http://www.nw-grid.ac.uk/LivMPI
> Note that you may have to tune the driver parameters to get the lowest
Can you say something about any tuning you did to get decent results?
We've had some interesting problems (until lately; new broadcom drivers
helped) getting decent performance. We're using Dell 1950's with
Harpertown and broadcom NICs are native.
Which driver parms had to get tweaked?
Gerry Creager -- gerry.creager at tamu.edu
Texas Mesonet -- AATLT, Texas A&M University
Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.862.3983
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