[gmx-users] Benchmarks

Erik Lindahl lindahl at csb.stanford.edu
Thu Dec 11 19:10:01 CET 2003

Hi Justin,

I haven' compared the Xeons recently, but we did similar tests when the 
Athlons were upgraded to more cache a couple of years ago.

In general, more cache helps 10-15% extra at the same frequency for 
large systems (100,000 atoms), but the difference is almost negligible 
(couple of %) e.g. for a protein in water.



On Dec 11, 2003, at 9:45 AM, Justin MacCallum wrote:

> Hi,
> has any done a comparison of 3GHz Xeons with 512KB and 1MB cache? Is
> there any indication that the extra cache helps for GROMACS runs? Is
> there any advantage to the 3.2GHz Xeons other than the obvious slight
> improvement due to clock speed?
> Justin
> -- 
> Justin MacCallum
> jlmaccal at ucalgary.ca
> PhD Student
> Department of Biological Sciences
> University of Calgary
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