[Beowulf] Recent comparisons of 1600 MHz external Harpertown vs.235x AMD processors?
Joshua mora acosta
joshua_mora at usa.net
Thu May 8 16:19:30 PDT 2008
If you had a 2.3GHz at 2.0GHz NB you would get 17.5GB/sec.
------ Original Message ------
Received: Thu, 08 May 2008 02:18:30 PM PDT
From: Mark Hahn <hahn at mcmaster.ca>
To: Tom Elken <tom.elken at qlogic.com>Cc: Beowulf Mailing List
<beowulf at beowulf.org>
Subject: RE: Re: [Beowulf] Recent comparisons of 1600 MHz external
Harpertown vs.235x AMD processors?
> > Here are some measurements I just made on OpenMP STREAM:
> > 8-thread
> > STREAM Copy (GB/s)
> > Harpertown - ----------------
> > Xeon 5410, 2.33 GHz, 1333 MHz FSB: 6.2
> > Xeon 5472, 3.0 GHz, 1600 MHz FSB: 7.3
> > Barcelona -
> > Opteron 2352, 2.1 GHz: 15.7
> > (the 3 other STREAM components were pretty similar to Copy)
> very nice. it would be good to know the memory configuration.
> of course, the real question is how well Nehalem will do -
> does anyone have numbers? it's a sticky time for specifying
> clusters, since current Intel chips have great onchip performance
> but are dramatically constrained in decent-sized HPC apps.
> choosing AMD, while defensible based on current memory performance,
> looks extremely iffy otherwise. (the most recent AMD disclosures
> have them attempting to milk the k10 core for the next couple years (!).)
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