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Subject: Re: How important are hashtables?

Author: Uri Blass

Date: 01:05:53 12/27/05

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On December 26, 2005 at 17:22:00, Ross Boyd wrote:

>On December 26, 2005 at 16:52:23, Jonas Cohonas wrote:
>
>>For long analysis that is, i mean if you have an engine running for say 2 days
>>on a position, will it come to another conclusion whether you use 32Mb hash or
>>2Gb hash?
>>
>>In other words will it, at that time control/analysis matter what hash size you
>>use?
>
>For long analysis more hash is better.

It is the case in most cases but not always/

More hash may also be worse for long analysis.

possible reasons:
1)some pruning does not work with more hash.
2)hash collisions that are no problem with small hash based on testing but a
problem with big hash.

Uri



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