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Subject: Small hash better for CM6K?

Author: Lin Harper

Date: 04:01:05 04/02/99


 When a pawn ending is reduced to king moves only, that's when bigger hash
tables are an advantage, as far as I know.

  Please consider the following position:

  8/k7/3p4/p2P1p2/P2P1P2/8/8/K7  white is upper case, I believe.1 meg hash
     1 meg hash           16 meg hash

   time    depth        time      depth
   01:47    22/23       04:05      22/23
   02:03    23/24       04:21      23/24
   02:31    24/25       04:50      24/25
   03:14    25/26       05:33      25/26
   05:38    26/27       07:56      26/27
   07:46    27/28       10:04      27/28
   07:54    28/29       10:11      28/29
   10:53    29/30       13:10      29/30
    These were the results on a CM6K, P150 machine 48meg ram. They suggest the
amaller hash is faster, at least in pure pawn endings.
    Can someone explain the reason for this? Otherwise I might as well leave my
ttable at the default setting
I let white move first, then left the machine's 'permanent brain' to consider
black's move and got the above results.
le setting at the default.



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