[Beowulf] how can I calculate peak performance of a cluster

Bruce Allen ballen at gravity.phys.uwm.edu
Tue Sep 27 12:41:29 EDT 2005


One should be very cautious with stating/using/selling peak performance. 
This is a bit like saying that my 15-year-old Honda automobile has a 'peak 
speed' of 200 miles per hour.  This is a true statement: if I drop my car 
off a very high cliff, it will reach 200 miles per hour speed just before 
hitting the ground (:-).

Cheers,
 	Bruce

On Tue, 27 Sep 2005, Kozin, I (Igor) wrote:

>> I want to calculate peak performance of cluster which  HP HPC Cluster
>> consist of different numbers of INTEL Xeon 3.4GHz EM64T ,
>> INTEL Xeon DP
>> 3.2GHz EM64T ,INTEL MP XEON 3.16GHz EM64T processors. I think
>> it is easy,
>> but I couldn't find.many
>>
>> many thanks for help
>
> Hi,
> When _calculating_ peak performance on Xeon it is usually assumed
> that two Flops can be performed during one clock step
> e.g. http://www.top500.org/sublist/System.php?id=7293
> (although in practise it is rarely the case).
>
> The easiest way _measure_ peak performance on the Intel platform is probably to check
> http://www.intel.com/cd/software/products/asmo-na/eng/perflib/clustermkl/219821.htm
> which will make you going.
>
> Best,
>
> I. Kozin  (i.kozin at dl.ac.uk)
> CCLRC Daresbury Laboratory
> tel: 01925 603308
> http://www.cse.clrc.ac.uk/disco
>
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