[Wien] Hardware Benchmarks for lapw1c
Alexander Shaposhnikov
shaposh at isp.nsc.ru
Fri Jan 26 14:04:59 CET 2007
Here they are; Times for the first k-point job. I have also tested with Snoop
filter ON and OFF:
Jobs SF ON SF OFF
1 119.8 118.8
2 121.6 133.9
4 158.9 156.5
8 285.7 270.9
I will later try to compile with Goto BLAS, it usually gives better results.
Best Regards,
Alexander Shaposhnikov
On Friday 26 January 2007 13:58, Florent Boucher wrote:
> Dear Alexander,
> could you please also test a parallel job (just put 2, 4 and 8 lines in
> the klist file with the same kpoint and submit with the parallel option)
> in order to evaluate the how good is the memory band width.
> A perfect system (without saturation of the memory band width) should
> give the same CPU time to calculate 1 k-point, whatever the number of
> parallel job submitted.
> I am expecting rather bad performance for 4 and 8 parallel job on Xeon
> Best regards
> Florent
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