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Subject: Re: Hash Size

Author: Shaun Brewer

Date: 05:25:29 10/09/02

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On October 09, 2002 at 02:17:25, Tim Blankenship wrote:

>with 512 mb of ram playing 3+2 minute games...whats the best hash size ive tried
>a lot and am still confused...thx for help

Test I have run with crafty seem to indicate that the more the better even for
blitz as long as you stay within real memory.

Shaun

    Program                            Score     %    Av.Op.  Elo    +   -
Draws

  1 log off tb4                    :  57.5/100  57.5   2397   2450   63  51
37.0 %
  2 log off double hash            :  54.0/100  54.0   2397   2425   66  41
50.0 %
  3 log                            : 194.5/388  50.1   2391   2392   35  21
47.2 %
  4 log off half hash              :  50.0/100  50.0   2392   2392   49  49
52.0 %
  5 log off default hash           :  48.0/100  48.0   2392   2378   48  69
38.0 %
  6 log off                        : 184.0/388  47.4   2415   2397   22  34
46.4 %

All games on PIII 1133mhz 512 mb ram game in 1 minute

double hash

hash table memory = 192M bytes.
pawn hash table memory = 48M bytes.

normal 96/24
half   48/12
default - what ever crafty allocates

Version = 18.15




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