[gmx-users] dual-core performance

[David van der Spoel]

On Mon, 2005-05-02 at 23:43 -0600, Justin MacCallum wrote:
> Hi,
> 
> the new dual core Opterons have been mentioned several times on the 
> mailing list recently. We're currently investigating our options for a 
> cluster upgrade later this year. Has anyone benchmarked GROMACS on 
> these machines yet? I believe both cores share a single memory 
> controller on these chips. How does/would that affect performance?
Actually Erik Lindahl mentioned the opposite, that each processor does
have its own memory controller. Anyway, as soon as I get the machines I
will do benchmarks. We already have normal Quad Opteron machines for
which there are benchmarks on the website. It won't differ too much,
since GROMACS is not very memory sensitive anyway.
> 
> Justin
> --------------------------
> Justin MacCallum
> PhD Student
> Departement of Biological Sciences
> University of Calgary
> 
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-- 
David.
________________________________________________________________________
David van der Spoel, PhD, Assoc. Prof., Molecular Biophysics group,
Dept. of Cell and Molecular Biology, Uppsala University.
Husargatan 3, Box 596,          75124 Uppsala, Sweden
phone:  46 18 471 4205          fax: 46 18 511 755
spoel at xray.bmc.uu.se    spoel at gromacs.org   http://xray.bmc.uu.se/~spoel
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