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Subject: Re: crafty 16.19 speed

Author: Ricardo Gibert

Date: 18:34:27 06/06/02

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On June 06, 2002 at 21:11:12, Vincent Diepeveen wrote:

>Bob is still very impressed by the nodes a second from
>some old and dusted alpha processor somewhere around 2000.
>
>Time to run a bench at crafty 16.19. Please remember this
>thing is compiled somewhere in 2000 if i guess well. Compiler
>for K7 is like 30% faster nowadays in nodes a second:
>
>This is a very slow mainboard (thunder K7) to test it.

How fast is your cpu clocked?

>I didn't even do effort to compile it reorder it with learning
>and then run again. Already raw nodes a second is like 1.2MLN
>nodes a second nearly *without* any tuning yet!
>
>That's pretty much faster than todays crafty Bob!
>
>The fastest alpha in these days only got 1.5MLN nodes a second
>at a dual. If i go tune this thing recompile it for SMP with all
>kind of profile info, and kick out some outdated assembly, then
>i'll hit 3.0 MLN nodes a second quickly!
>
>D:\CHESS\crafty>wcrafty-16.19.exe
>EPD Kit revision date: 1996.04.21
>unable to open book file [./book.bin].
>book is disabled
>unable to open book file [./books.bin].
>
>Crafty v16.19
>
>White(1): bench
>Running benchmark. . .
>......
>Total nodes: 67136130
>Raw nodes per second: 1157519
>Total elapsed time: 58
>SMP time-to-ply measurement: 11.034483



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