[Beowulf] Opteron with ifort and Intel MKL

Reuti reuti at staff.uni-marburg.de
Sat Aug 25 03:31:57 EDT 2007


Am 24.08.2007 um 11:58 schrieb Bertrand Russell:

> Dear Beowulf Community members,
>
> I am planning to build a Beowulf cluster of 12 SUN FIRE 2200 boxes  
> with Opteron-2.6GHz processor (Dual Core). The purpose of this  
> cluster is to run my Amber9 code. I want to know one thing, Would  
> the Opteron can give better benchmarks if I compile my Amber9 with  
> Intel MKL and ifort compiler? I googled around it, but I could not  
> get any positive or negative results either. I am looking for  
> expertise and experinced advices and suggestions. Many thanks in  
> advance.

AFAIK programs compiled with ifort run best on Intel CPUs, as  
otherwise only a generic version of the code is used.

But checkout the -xO switch in their 10.0 release, which will use  
SSEx commands also on Opterons.

-- Reuti

> -- 
> Miles to go......... Millions to meet...........
> Bertrand. P. S. Russell
> +91 - 98943 98441
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