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Date:      Fri, 27 Jan 2006 19:40:06 +0100
From:      Daniel Rock <freebsd@deadcafe.de>
To:        kono@kth.se
Cc:        mumag@nist.gov, freebsd-amd64@freebsd.org
Subject:   Re: dual vs single core opteron 100's
Message-ID:  <43DA6906.9030508@deadcafe.de>
In-Reply-To: <200601270957.44032.kono@kth.se>
References:  <200601270957.44032.kono@kth.se>

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Alexander Konovalenko schrieb:
>  I have upgraded my AMD64 Athlon 3000+ to dual core X2 4400+. Now I can run 
> two oommf tasks at the same time, and performance (I measure total execution 
> time of the task) is around 186% comparing with 100% when only one task is 
> running. This 7% degrade in performance per task is probably due to 
> concurrent data transferring CPU<->RAM. I am very satisfied with X2 but just 
> wonder if dual core Opteron gives better performance? Does anybody run OOMMF 
> on Opteron?

Besides the different CPUID, Athlon64 X2 (with 2x1MB Cache) and Dual-Core 
Opteron 1xx are exactly the same.


Daniel



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