Author: Kurt Utzinger
Date: 13:25:00 01/27/06
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On January 27, 2006 at 16:13:20, Bernardo Wesler wrote:
>Kurt: do u say that because of a pragmatic thought or do u have statistical data
>based upon the basis of science?
>I am asking this to u, first, because u are one of the few seriuos opinions in
>CCC, and mainly because it looks like (at least to me) that "hash tables sizes"
>is a secret theme or really unknown theme.....
>Thx in advance and my kindest regards.
>Bernardo.
Hi Bernardo
Hash size seems to be a difficult theme. The most common rule
is to give the engines as much hash as possible but avoid at
any cost swapping the HD. I am not so sure about this rule.
I have once started a test (engine/engine matches) giving
the engines different amount of hash A = 16 MB, B = 128 MB
then A = 32 MB, B = 128 MB and then changed engines. And as
far as I can remember (I have lost this material !!), the
engines with 32 MB got slightly better results. As soon as
I have a modern PC (Dual Core AMD X2 4400+ or higher) with
2 GB of ram, I would like to repeat such a time consuming
test to find out if things have changed in the meantime.
Best regards
Kurt
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