[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
office: MIT Dept. of EAPS; Rm 54-1424; 77 Massachusetts Ave.
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