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Subject: Re: To all Crafty 19.10 users

Author: Mike Byrne

Date: 05:39:42 02/07/04

Go up one level in this thread


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.



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