NAMD on dual quad-core Xeon's with Infiniband backbone

From: Carsten Olbrich (ocarsten_at_googlemail.com)
Date: Sat Sep 22 2007 - 06:44:29 CDT

Hi Stephen,

we have a quad core Xeon system with Infiniband and Ethernet.
We observed no performance differences between network types.
But you should use the Linux-amd64 build. This is about twice as fast
as the Linux-i686 build. Also the option +giga increased the
performance.

Regards,

Carsten

On 9/21/07, Stephen M. Dutz <smdutz_at_csupomona.edu> wrote:
>
>
>
>
> Hi all,
>
>
>
> I've searched the message board and the wiki for posts on running NAMD on
> dual-quad core Xeon systems with an Infiniband backbone, however haven't
> found much data. I'm currently running the Linux-i686 build and in the
> process of compiling the source code to see if this speeds things up at all.
> I was wondering if anyone out there has tried running NAMD on a similar
> system, and if so what was your methodology for maximizing performance, and
> what type of scaling do you observe.
>
>
>
> Thanks in advance,
>
>
>
> Steve
>
>

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