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Subject: Re: Question about hash-tb size for Gambit

Author: Thomas Scherk

Date: 20:52:17 04/26/01

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>On this computer I would recommend 192Mb hash tables and 32Mb TB cache.
>
>But please make sure that this setting does not slow the program down
>dramatically. It depends on your system, so please try with for example one
>middlegame position and one deep endgame position.
>
>Try with 64Mb HT and 192Mb HT. Set up the program to reach a fixed depth on your
>middlegame position. If the NPS is almost the same with 64Mb and 192Mb, then
>it's OK to use 192Mb HT.
>
>Then set the HT to 192Mb (if it is OK), then load the endgame position. Same
>experiment at fixed depth, but this time with 1Mb TB cache and 32Mb TB cache.
>
>But that's a very classical way to test these things, I'm sure you are used to
>this procedure already.
>
>
>
>    Christophe

Dear Christophe,

I think Bertil tells us, that the Computer has 256 MB. Depending on the OS, he
is using, and depending on the loading of some drivers, maybe Ethernet, Sound,
VGA with high resolution and 32 Bits depth Colour, there will be only about 180
MB left from these 256 MB.

You write "...same with 64 MB and 192 MB...". Is this right? I was told by
ChessBase that you can use any amount of hashtables but it must be an amount
computed with the formula 3*2^n MB. Is this right?

Regards, Thomas



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