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Subject: Re: in some cases humans are much better in tactics than computers

Author: Richard Pijl

Date: 03:05:10 08/08/04

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>
>No, it wasn´t. Amazing, i lost my bet against you. My luck that i don´t lose a
>box of champagne. Congratulations to you. Only two questions:
>
>What is the best hashsize for Baron on a Athlon 2200+ on tournamentlevel?

It depends on:
- the amount of memory you have
- If the Baron is the only engine running on the computer
- If you're using 5-men EGTB's

If the Baron is the only engine running, allocate about 40% of your memory to
the transposition hashtables.
About 4Mb is sufficient for the pawn hashtables (shash)
I allocate 5% of the main memory to the EGTB cache. The rest of the memory I
leave to the OS to play with. Especially to act as file cache for EGTB's.

If the Baron has to share the machine I would use the largest setting for the
hash that you allow. Then 2 or 4 MB for the pawn hash and the rest for
EGTB-cache.

Better check in the logfile or in a console window if the hash settings are what
you expect. The Baron reports how much it uses. As the size for hashtables and
pawn hash have only a few possibilities (next larger size is always doubled) it
may be useful to play with a few configurations.

Final note: Be careful on machines with more than 512Mb memory. Certain OS's
will not support caching of the memory area above 512Mb (e.g. Win2k). In that
case you should try to keep the memory usage a bit down.

>
>Will you release the version 1.40 for the community?
>

Yes, today. I already made the distributions, it is just a matter of updating
and uploading the website.
I'll post a message when it is available.
Richard.



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