Hi All,
Sorry for the extra email... the spreadsheet I attached previously
didn't include the yakut04 numbers (forgot to hit "Save" first).
regards,
Stephen.
On Tue, 21 Aug 2007, Stephen J. Gowdy wrote:
> Hi All,
> So I've ran 1, 2, 4 and 8 jobs simultaneously on eval01. I also ran
> one job on yakut04 to compare CPU speeds (so only look at CPU time for that,
> wall time is probably not good to compare in this case). I've attached the
> spreadsheet with the numbers if anyone wants to look at them.
> The basic conclusion is that the new Intel CPU's GHz are worth about
> 15% more than the Opterons (this is a big change from the P4s, where IIRC
> BaBar say a 30% drop). Overall we loose about 5% when running eight jobs on
> the same machine, with some coming from less CPU efficiency and more system
> time used (some more user time too, particularly in going from 4 to 8 jobs).
> The job run was a simulation job which is the most CPU intensive part
> of the ATLAS job suite. (only 3 events which took about 30 minutes).
>
> regards,
>
> Stephen.
>
> --
> /------------------------------------+-------------------------\
> | Stephen J. Gowdy, SLAC | CERN Office: 32-2-A22|
> | http://www.slac.stanford.edu/~gowdy/ | CH-1211 Geneva 23 |
> | | Switzerland |
> | EMail: [log in to unmask] | Tel: +41 22 767 5840 |
> \------------------------------------+-------------------------/
>
--
/------------------------------------+-------------------------\
|Stephen J. Gowdy, SLAC | CERN Office: 32-2-A22|
|http://www.slac.stanford.edu/~gowdy/ | CH-1211 Geneva 23 |
| | Switzerland |
|EMail: [log in to unmask] | Tel: +41 22 767 5840 |
\------------------------------------+-------------------------/
|