[Beowulf] Register article on Epyc

Scott Atchley e.scott.atchley at gmail.com
Thu Jun 22 06:31:19 PDT 2017


Hi Mark,

I agree that these are slightly noticeable but they are far less than
accessing a NIC on the "wrong" socket, etc.

Scott

On Thu, Jun 22, 2017 at 9:26 AM, Mark Hahn <hahn at mcmaster.ca> wrote:

> But now, with 20+ core CPUs, does it still really make sense to have
>> dual socket systems everywhere, with NUMA effects all over the place
>> that typical users are blissfully unaware of?
>>
>
> I claim single-socket systems already have NUMA effects, since multiple
> layers (differently-shared) of cache have the same effect as memory at
> different hop-distances.
>
> regards, mark hahn.
>
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