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Subject: Re: [OMPI users] SYSTEM CPU with OpenMPI 1.4.3
From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2010-11-12 12:03:10

On Nov 10, 2010, at 12:31 AM, tmishima_at_[hidden] wrote:

> Recently I installed OpenMPI 1.4.3 on my cluster. I found that
> SYSTEM CPU is higher than older versions of 1.4.X, when I ran
> our FEM program. Further more, OMPI_1.4.3 is a little bit slower
> than 1.4.2. What is the differnece between these two versions, or
> what affects the "SYSTEM CPU" and execution speed?

There shouldn't be any noticeable difference in performance between these versions.

Assumedly you're running your tests on otherwise-idle machines. Is the difference repeatable?

Jeff Squyres
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