[Beowulf] Thought that this might be of interest
ctierney at hypermall.net
Mon Nov 6 08:42:42 PST 2006
Jeffrey B. Layton wrote:
> OK, I feel like trying this one (call me stupid if you will).
>> Thanks for your info, this is very helpful.
>> So until end 2007 the core2 annihilates any opteron system.
> No!!!!!!!!! This may be true for your application, but it's not
> true for all applications. I have a couple of applications where
> a 2.6 GHz Opteron with beat a 3.0 GHz Woodcrest.
> Another example is Fluent, where a 3.0 GHz Woodcrest kills
> the Opteron on a single node or a small number of nodes.
> But as you increase the number of nodes, the Opteron is faster
> than the Woodcrest.
Why is this? Is it the interconnect, PCI-E implementation,
maybe cache effects?
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