[gmx-users] New single thread performance numbers

[Erik Lindahl]

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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