[gmx-users] Apples-to-Apples comparison for dpcc benchmark

[David van der Spoel]

> >>
> >> Do I understand correctly that the number to compare is total ps/day,
> >> 24.590 ps/Node-hour * 24 hours/day * 32 processors = 18,888 ps/day ?
> > No I'm sorry...
> > 24.59 * 24 = 600 ps/day.
> > which is roughly the same as 4 Xeons at 4 times the clock.
> >
> >>
> >> Additionally, the published parallel dpcc benchmarks use single
> >> precision
> >> and grompp options -sort and -shuffle, 5000 timesteps?  Are there any
> >> other optimization options I should be aware of when making a
> >> comparison?
> >>
> > This is all.
> 
> ok, thanks, ps/day = (ps/node-hour)*24
> 
> this means that quoted ps/day is really ps/node-day?
Indeed.


-- 
David.
________________________________________________________________________
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://xray.bmc.uu.se/~spoel
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