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Subject: Re: New Crafty 16.8 build is yet again a bit faster.

Author: Jeremiah Penery

Date: 18:10:07 06/01/99

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On June 01, 1999 at 19:47:53, Dann Corbit wrote:

>On June 01, 1999 at 19:39:28, Dave Gomboc wrote:
>
>>On June 01, 1999 at 19:00:28, Dann Corbit wrote:
>>
>>>Larry Applebaum's settings and build file seem to have created the fastest
>>>version.  I have changed my file concatenation order to be the same as his, and
>>>now I get the same optimal performance as his wcraftyz.exe.  You can find it on
>>>my website as:
>>>
>>>ftp://38.168.214.175/pub/Crafty1.exe
>>>
>>>If you got a copy over the weekend, get a new one.  This one is 6% faster than
>>>my previous version, as I now get 170,000 NPS on a PII 300 and 281,000 NPS on a
>>>PIII 500.
>>
>>This is a MAJOR speed improvement!  A crafty SMP version (but with mt=1) of 16.6
>>that I have been using gets about 100000 NPS on a PII 300 (NT).
>To get 170K, you need to do a start/high crafty1.exe
>I don't recommend start/realtime, since it makes the machine unusable for
>everything else, and can even be hard to get control back.  Besides which, it
>does not seem to increase the bench numbers any more over start/high.
>My SMP version is slightly slower, but should still be a major improvement over
>what you are getting now.  If you only run one CPU, it is better to use the
>non-smp version, since the MT libraries are not as fast as single threaded.

I always got around 170k NPS on a PII-300 using NT, ever since version 16.5
(with the inline assembly).  As long as you're not running anything else, even
start/low should get nearly the same numbers.

Jeremiah



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