AMD Opteron memory bandwidth (was Re: CPUs for a Beowulf)

John Hearns john.hearns at clustervision.com
Tue Sep 9 02:37:35 EDT 2003


On Tue, 9 Sep 2003, Chris Samuel wrote:

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> On Tue, 9 Sep 2003 04:18 am, John Hearns wrote:
> 
> > Seriously though, you might find that 64bit AMDs aren't that expensive.
> 
> My understanding is that memory bandwidth with Opterons scales with the number 
> of CPUs due to the HyperTransport architecture, which could be a big plus to 
> some people.
> 
Not really an answer to your question, but I found this article on the 
Hammer architecture (from DEcember last year).
http://www.digit-life.com/articles2/amd-hammer-family/index.html

I think it is good - has discussionof of memory timings, caches, 
HyperTransport etc. Worth a read.


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