AMBER Archive (2009)

Subject: Re: [AMBER] AMBER efficiency: Intel vs. AMD

From: Ye MEI (ymei_at_itcc.nju.edu.cn)
Date: Sun Jan 18 2009 - 20:20:47 CST

I guess you mean computing node with 2 CPUs or 8 cores.
Intel has just released their new CPU named Nelahem, which also has
memory controller integrated.
But in my opinion, clock is more important than architecture, comparing
Intel and AMD. So I prefer Intel. And the second factor is the 2nd level
cache management. Intel also performs better than AMD.

>I wish to know if anyone has any suggessions whether intel or amd is preferred for a computing node with 8 cpus? My guess is that for intel there is a common shared memory whereas for
>AMD, each chip has its own memory controller - meaning that perhaps intel may have problems read/write during MD simulations with AMBER. Please let me know if anybody has any comments.regards,SGupta 
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