[Wien] Benchmarks -- comments please

[Laurence Marks]

Addendum: apparently hyperthreading is not on, I was misled by
something on a linux forum that I used to test.

On Wed, Aug 1, 2012 at 9:10 AM, Laurence Marks <L-marks at northwestern.edu> wrote:
> I am benchmarking some new nodes (Intel(R) Xeon(R) CPU E5-2660 0 @
> 2.20GHz) using the standard mpi Wien2k benchmark, and would be
> interested in comments/comparisons -- the online mpi benchmark seems
> to be a bit outdated. Hyperthreading is turned on (currently not under
> my control), and the IB is not working right so these numbers are only
> for a single node with two quadcores with openmpi 1.4 (no idea how it
> was compiled) and composer_xe_2011_sp1.11.339
>
> Runs on 1 node
> ==> 16 cores (hyperthreading used)
>       Maximum WALL clock time:    93.7425620555878
>       Maximum CPU time:           88.3000000000000
>
> ==> 4 cores
>       Maximum WALL clock time:    221.049882888794
>       Maximum CPU time:           210.040000000000
>
> ==> 8 cores
>       Maximum WALL clock time:    132.835557937622
>       Maximum CPU time:           125.560000000000
>
> For comparison, on my older   Intel(R) Xeon(R) CPU           E5410  @ 2.33GHz
>  ==> 8 cores
>       Maximum WALL clock time:    304.228610000000
>       Maximum CPU time:           296.800000000000
>
> N.B., the speed increase with hyperthreading is mainly in HAMILT/HNS
> and may be misleading or might be real.
>
> --
> Professor Laurence Marks
> Department of Materials Science and Engineering
> Northwestern University
> www.numis.northwestern.edu 1-847-491-3996
> "Research is to see what everybody else has seen, and to think what
> nobody else has thought"
> Albert Szent-Gyorgi



-- 
Professor Laurence Marks
Department of Materials Science and Engineering
Northwestern University
www.numis.northwestern.edu 1-847-491-3996
"Research is to see what everybody else has seen, and to think what
nobody else has thought"
Albert Szent-Gyorgi