[Rocks-Discuss]Dual Itanium2 performance

Leonard Chvilicek leonard_chvilicek at rac.ray.com
Wed Jul 2 16:20:25 EDT 2003

The code that they were using was a CFD code called TAU and they were
getting over 90% efficiency on the 2nd processor on the Dual Opteron

Thanks for your information Tim & Greg

Have a great 4th of July!

-----Original Message-----
From: Greg Bruno [mailto:bruno at rocksclusters.org] 
Sent: Wednesday, July 02, 2003 1:27 PM
To: Leonard Chvilicek
Cc: beowulf at beowulf.org; npaci-rocks-discussion at sdsc.edu
Subject: Re: [Rocks-Discuss]Dual Itanium2 performance

> I was reading in some of the mailing lists that the AMD Opteron dual 
> processor system was getting around 80-90% efficiency on the second 
> processor.

just curious -- what benchmark was being used?

> I was wondering if that holds true to the Itanium2 platform? I looked 
> through some of the archives and did not find any benchmarks or
> statistics on this.  I found lots of dual Xeons but no dual Itaniums.

running linpack and linking against the goto blas 
(http://www.cs.utexas.edu/users/flame/goto/), a two-cpu opteron 
achieved 87% of peak.

a two-cpu itanium 2 achieved 98% of peak.

  - gb

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