[gmx-users] benchmarking results

David van der Spoel spoel at xray.bmc.uu.se
Sun Apr 8 08:49:56 CEST 2007

vipin sachdeva wrote:
> Hi,
>    I was going over the benchmarking page, for single-node results on 
> different platforms. I don't understand what are the numbers mentioned 
> for each of the benchmarks ? Are they ps/day metric ? Also, what are the 
> compilation flags used in each of the cases ? I would assume "-O3" with 
> SSE/Altivec included for these results ? Were there also system specific 
> options for each of these platforms ? In particular I am interested in 
> ppc970/woodcrest numbers ? How many threads per node are being run for 
> the Woodcrest or the other platforms on the benchmarking page? Is there 
> any benefiton running single/multiple threads on
> multi-core platforms ? Could someone help me with these questions ?
ps/day is correct.
in principle we have hitherto used one thread per physical core, 
ignoring hyperthreading. just try it on your own box.

David van der Spoel, PhD, Assoc. Prof., Molecular Biophysics group,
Dept. of Cell and Molecular Biology, Uppsala University.
Husargatan 3, Box 596,  	75124 Uppsala, Sweden
phone:	46 18 471 4205		fax: 46 18 511 755
spoel at xray.bmc.uu.se	spoel at gromacs.org   http://folding.bmc.uu.se

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