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Subject: Re: To all Crafty 19.10 users

Author: Mike Byrne

Date: 05:41:36 02/07/04

Go up one level in this thread


On February 07, 2004 at 08:39:42, Mike Byrne wrote:

>On February 07, 2004 at 08:20:37, Drexel,Michael wrote:
>
>>Comparison Win32 executables with identical Crafty.rc file for AMD 2000+
>>processor:
>>
>>Skinner 3.2.2004:
>>
>>Crafty v19.10
>>
>>White(1): bench
>>Running benchmark. . .
>>......
>>Total nodes: 71227364
>>Raw nodes per second: 962531
>>Total elapsed time: 74
>>SMP time-to-ply measurement: 8.648649
>>White(1):
>>
>>Byrne 2.2.2004:
>>
>>Crafty v19.10
>>
>>White(1): bench
>>Running benchmark. . .
>>......
>>Total nodes: 71227364
>>Raw nodes per second: 890342
>>Total elapsed time: 80
>>SMP time-to-ply measurement: 8.000000
>>White(1):
>>
>>Corbit 4.2.2004:
>>
>>Crafty v19.10
>>
>>White(1): bench
>>Running benchmark. . .
>>......
>>Total nodes: 79723137
>>Raw nodes per second: 937919
>>Total elapsed time: 85
>>SMP time-to-ply measurement: 7.529412
>>White(1):
>>
>>It seems Skinners executable is clearly the best for AMD computers.
>>Thanks to all for making them available.
>>
>>Michael
>
>
>Interestingly, the Byrne exectuable is faster on Skinner's computer than his
>own.  I have rec'd an email from Peter stating this.
>
>================================================================
>Windows XP Professional - 2.0Ghz Pentium 4 768 megs ram.
>
>Byrne Crafty PGO
>White(1): bench
>Running benchmark. . .
>......
>Total nodes: 89942714
>Raw nodes per second: 719541
>Total elapsed time: 125
>SMP time-to-ply measurement: 5.120000
>White(1):
>
>Byrne Crafty SE
>
>White(1): bench
>Running benchmark. . .
>......
>Total nodes: 89942714
>Raw nodes per second: 795953
>Total elapsed time: 113
>SMP time-to-ply measurement: 5.663717
>White(1):
>
>Peter's Crafty Compile
>
>White(1): bench
>Running benchmark. . .
>......
>Total nodes: 89942714
>Raw nodes per second: 719541
>Total elapsed time: 125
>SMP time-to-ply measurement: 5.120000
>White(1):
>===============================================================
>
>So it's back to the old adage -- "your mileage may vary".  I think this also
>demostrates again that the AMD processors are usually  better for chess than
>Intel P4 that run from 1.7 Ghz to at least 2.4 Ghz  - I'm not sure about newer
>processors.

BTw, for my p4 1.7 Ghz, I also get results similiar to Peter - about 10% faster
than his executable.



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