[Beowulf] Performance characterising a HPC application

Ken Bekampis ken.bekampis at scali.com
Fri Mar 23 16:53:38 EDT 2007


If anyone is interested in a 30 day evaluation copy of Scali MPI
Connect... please send me an email.

kbekampis at scali.com

Thanks/Ken



-----Original Message-----
From: beowulf-bounces at beowulf.org [mailto:beowulf-bounces at beowulf.org]
On Behalf Of Eugen Leitl
Sent: Friday, March 23, 2007 4:26 PM
To: beowulf at beowulf.org
Subject: Re: [Beowulf] Performance characterising a HPC application

On Tue, Mar 20, 2007 at 01:03:58PM +0000, Mattijs Janssens wrote:

> A non-intrusive test you could try is to replace your MPI (mpich) with
a 
> lower-latency one. Scali or MPI/Gamma are just to name two. These can
lower 
> your latency down to 15muS or so.

Anyone been able to make MPI/Gamma work with the Broadcoms in SunFire
X2100 and X2100 M2 series?

I just got a X2100 M2 machine in today. 4 GBit ports, though 2 of them
nVidia. 

-- 
Eugen* Leitl <a href="http://leitl.org">leitl</a> http://leitl.org
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