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Subject: Re: crafty at Athlon64

Author: J. Wesley Cleveland

Date: 14:42:19 02/13/04

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On February 12, 2004 at 13:24:35, Aaron Gordon wrote:

>On February 12, 2004 at 12:35:03, Andreas Guettinger wrote:
>
>>A fellow student of me got an Athlon64 3200 for his phD work at university and
>>installed the x86-64 version of Suse9. I could not resist to quickly compile
>>crafty to test the speed. :)
>>
>>unable to open book file [./book.bin].
>>book is disabled
>>unable to open book file [./books.bin].
>>EGTB access enabled
>>using tbpath=./TB
>>0 piece tablebase files found
>>
>>Crafty v19.10
>>
>>White(1): bench
>>Running benchmark. . .
>>......
>>Total nodes: 89942714
>>Raw nodes per second: 1835565
>>Total elapsed time: 49
>>SMP time-to-ply measurement: 13.061224
>>White(1):
>>
>>
>>regards
>>Andy
>
>With a good Windows binary running 64bit stuff you can probably figure you will
>be able to get a 40% increase over GCC. This is what I got going from GCC to one
>of my Intel C 5.0.1 binaries. This should put you up around 2.5 million
>nodes/sec @ 2GHz. :)

I wish. I just managed to compile a 64 bit version of crafty on WinXP64 on my
Athlon64 3000 using the DDK compiler, and got
Raw nodes per second: 1578860.
for comparison, the 32 bit version I compiled got
Raw nodes per second: 1332804

I haven't made any special effort to optimize it, and my A64 3000 runs at the
same clock speed as the 3200 with half the L2 cache. When I get Linux running,
I'll compile that and compare.



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