[gmx-users] Gromacs 4.5.1 on 48 core magny-cours AMDs

[Berk Hess]

Hi,

We haven't observed any problems running with threads over 24 core AMD nodes (4x6 cores).

Berk

> From: ckutzne at gwdg.de
> Date: Thu, 21 Oct 2010 12:03:00 +0200
> To: gmx-users at gromacs.org
> Subject: [gmx-users] Gromacs 4.5.1 on 48 core magny-cours AMDs
> 
> Hi,
> 
> does anyone have experience with AMD's 12-core Magny-Cours
> processors? With 48 cores on a node it is essential that the processes
> are properly pinned to the cores for optimum performance.  Numactl
> can do this, but at the moment I do not get good performance with
> 4.5.1 and threads, which still seem to be migrating around.
> 
> Carsten
> 
> 
> --
> Dr. Carsten Kutzner
> Max Planck Institute for Biophysical Chemistry
> Theoretical and Computational Biophysics
> Am Fassberg 11, 37077 Goettingen, Germany
> Tel. +49-551-2012313, Fax: +49-551-2012302
> http://www.mpibpc.mpg.de/home/grubmueller/ihp/ckutzne
> 
> 
> 
> 
> -- 
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