brian at chpc.utah.edu
Fri Sep 20 18:39:55 EDT 2002
We run mm5 jobs here at the Univ of Utah. In our initial tests we found
mm5 to need a lower latency network then ethernet seems to offer. We
currently run over Giganet's VIA hardware at a 2x speedup over our
initial runs over ethernet. We also tested Myrinet, though an older rev
then the 2000 product, and found similar speedups. I can get you more
detailed info if you need it, let me know.
On Fri, 2002-09-20 at 15:02, Paul English wrote:
> We are running MM5 on a 12 node, 24 processor cluster. It does not seem to
> be running at full capacity and I'd like to figure out where we can get
> the most bang/buck on performance improvements. The network is currently
> only single 10/100, although the motherboards (Tyan S2462 w/ dual onboard
> 3c920) have a second 10/100 interface.
> I need to look at:
> How saturated is the network?
> Do I need to double (2nd 10/100) or multiply by 10 (gigabit) the throughput?
> Is the problem latency based?
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Brian D. Haymore
University of Utah
Center for High Performance Computing
155 South 1452 East RM 405
Salt Lake City, Ut 84112-0190
Phone: (801) 585-1755, Fax: (801) 585-5366
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