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Subject: Re: I don't understand whats up with the new crafty release

Author: Robert Hyatt

Date: 08:52:30 05/18/04

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On May 17, 2004 at 23:32:20, Keith Evans wrote:

>On May 17, 2004 at 14:42:16, Slater Wold wrote:
>
>>On May 17, 2004 at 14:28:57, Jason Kent wrote:
>>
>>>Does someone have a version compiled and optimized for P4 processors and
>>>hyperthreading?
>>
>>ftp://ftp.slate.gotdns.org/crafty/32/smp-sse2/c1913smpsse2.exe
>
>Slate,
>
>Doesn't hyperthreading slow Crafty down now? I thought that after some recent
>changes that were made for the Opteron NUMA system that Bob recommended against
>hyperthreading - no?
>
>-Keith


Correct, for duals and quads.  I have not tried the test on a single cpu machine
with SMT on and SMT off however.  Nothing suggests that the result would be
different, but without actual testing I don't know.  I can't run my dual with
just one physical CPU to test this...



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