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Subject: Re: AMD A64 X2 DUALCORE

Author: Robert Hyatt

Date: 14:38:14 08/06/05

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On August 06, 2005 at 17:06:46, Vincent Diepeveen wrote:

>On August 05, 2005 at 12:46:29, Robert Hyatt wrote:
>
>[snip]
>Please show us the output of crafty at a 8 box NUMA or more.
>
>Nalimov also may post some outputs he had at the Superdome with crafty.
>Superdome qualifies as NUMA too, IMHO.


I'll show you some _current_ logs in another day or two.  Hope that will satisfy
you.  Of course, then you go on to "OK, it scales perfectly at 8 cpus, but not
at 16".

We've already been through the "it scales for 2 Numa processors but not 4."
Then when I ran on a 4-processor numa box, this became "OK, it scales for 4
processors, but not 8."

There is a trend there.  I've posted a couple of 8-cpu runs in years past.  I've
even posted NPS scaling info for beyond 8 on a couple of occasions...
Chances are good you'll see a non-functional crafty on an 8-way numa box in a
week or so, assuming you make it to Iceland.  Then maybe you'll at least shut up
about _this_ issue...

or maybe not...




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