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Subject: Re: Decrease in Crafty kNPS

Author: Dann Corbit

Date: 01:05:36 10/14/05

Go up one level in this thread


On October 14, 2005 at 02:23:25, Gabor Szots wrote:

>On October 13, 2005 at 17:34:42, Dann Corbit wrote:
>
>>On October 13, 2005 at 17:16:38, Gabor Szots wrote:
>>
>>>20.0 was around 1125 on my Athlon XP 2500+. 20.1 is around 800. Why?
>>>
>>>Gábor
>>
>>I see a speed drop, but nothing so dramatic.  I expect that there is an
>>important difference in the build process used to create the two binaries you
>>are using.
>>=====================================
>>Crafty v20.0
>>
>>White(1): bench
>>Running benchmark. . .
>>......
>>Total nodes: 77856394
>>Raw nodes per second: 1179642
>>Total elapsed time: 66
>>SMP time-to-ply measurement: 9.696970
>>White(1): quit
>>=====================================
>>Crafty v20.1
>>
>>White(1): bench
>>Running benchmark. . .
>>......
>>Total nodes: 71777655
>>Raw nodes per second: 1010952
>>Total elapsed time: 71
>>SMP time-to-ply measurement: 9.014085
>>White(1): quit
>>=====================================
>
>20.0:
>
>Bryan Hofmann: 1151
>Peter Skinner: 1101
>
>20.1:
>
>Hofmann: 836
>Skinner: 795

What do you get with this one:
http://cap.connx.com/chess-engines/new-approach/Crafty-1921.exe.bz2



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