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Subject: Re: Improving 6 men index scheme

Author: Vincent Diepeveen

Date: 15:20:28 09/09/02

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On September 09, 2002 at 15:17:31, Angrim wrote:

>In my experience, making small optimizations to the indexing scheme
>which save 1/48th here and 1/64 there result in the data being
>less compressable to the point where no saving in disk space were
>gained.  My indexing method results in an average 10% of the index
>space being for illegal or redundant positions, but compresses
>very well.  I guess our goals differ.

with win/draw/loss there is no big diff for optimization in fact.
if you lose entries that's great of course.

>Since my tablebase collection has roughly 3/4 TB positions in it,
>I have given up on storing the indices in RAM, except for the
>tables with less than 5 pieces.  I just rely on the OS to cache
>recently accessed sections of the indices.
>
>Angrim
>ps. primitif should be spelled primitive



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