[TriLUG] 32+ GB RAM PC advice

Ed Hill ed at eh3.com
Wed Sep 15 18:33:53 EDT 2004


On Sun, 2004-09-12 at 20:53, Carlos J. Cela wrote:
> Kevin,
> 
> Do you know if that means that as far as the software application is 
> concerned the memory "bridging" between processors is transparent? or do 
> I need to make something inside  the application when writing the 
> simulation programs?


Hi Carlos,

As I said in my previous email, AMD Opteron systems are "effectively
SMP" because the memory connectivity details are thoroughly hidden by
the operating system.

Your user-space code doesn't need to (in fact, *shouldn't*) know
anything about the underlying hardware.  Just write and run your code as
you would on any generic SMP system.

And the same holds for SGI Altix hardware.

Ed

-- 
Edward H. Hill III, PhD
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