[gmx-users] New single thread performance numbers

[Jones de Andrade]

Hi Erik.

Still under NDA? Haven't it been lift last sunday?

Anyway: I don't know exactly the terms of the NDA, So if you can't answer me
the following question, please say "no, I can't answer". I'm in touch with
people having some compability issues with their Barcellonas and MBs, so
could you tell us what are the configs you are dealing with?

If that information is also under the NDA, really sorry for the question.

Sincerally yours,

Jones

On 9/17/07, Erik Lindahl <lindahl at cbr.su.se> wrote:
>
> Hi,
>
> Yes, the SPEC numbers aren't representative for typical gromacs
> performance.
>
> Technically I'm still on NDA for the benchmarks I ran on Barcelona so
> I can't share the exact numbers with you, but on average the
> performance will be pretty much the same _per_clock_ as Intel
> Clovertown. AMD scales a little bit better, but Intel benefits from a
> larger cache.
>
> Still, it's very nice to see that AMD is at least back on the field
> again. Let's hope for an aggressive frequency ramp-up and a price
> war ;-)
>
> Cheers,
>
> Erik
>
>
> On Sep 17, 2007, at 2:58 PM, Mark Abraham wrote:
>
> > Florian Haberl wrote:
> >> Hi,
> >> Barcelona is out now and SPEC CPU2006 (www.spec.org) has released
> >> new numbers (I have taken them from the german c't magazin
> >> www.heise.de):
> >> Single core performance:
> >> 435.gromacs
> >> Opteron 2350 74.4
> >> Opteron 2222 51.1
> >> Xeon X5365   143.3
> >
> > Caveat that these numbers are for simulations without assembly
> > optimization - i.e. C nonbonded loops. The assembly ones are
> > considerably faster. Ref - GROMACS website.
> >
> > Mark
> > _______________________________________________
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