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Subject: Re: two tier transposition table question

Author: Robert Hyatt

Date: 07:43:44 05/03/04

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On May 03, 2004 at 08:34:55, Aivaras Juzvikas wrote:

>my question is how big gain would be for me to transit from a simple always
>replace scheme to two tier table with depth prefered and always replace schemes.
>its probably hard to measure because not only the tree size will differ but also
>the accuracy of suggestested score and hash move (depth prefered table results
>are (?) more accurate than simple always replace table).
>
>also in such a two tier scheme, how does one divide the memory between these two
>tables? should depth prefered table get less slots in memory than the other?

It will make your search a bit more efficient.  Any hash improvement will only
help.

Dividing memory is up to you.  I use 3/4 of a power of two entries.  1/4 of them
in depth-preferred table, 1/2 of entries in always-store table...



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