Author: Ralf Elvsén
Date: 14:14:41 10/09/00
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On October 09, 2000 at 16:19:44, Dan Newman wrote: > >Mine (Shrike) is doing this in just under 3s (1.27M nodes) on a P3/600. >It's getting about a 35% hit rate on the hash table, so this may well >be the problem. Those hash table moves are really important in getting >good move ordering (and a low branching factor). > >I also keep stats on the fraction of cutoffs from the first move tried >and the fraction that are from hash table moves. In this case I'm >getting 92% of the cutoffs from the first move and 25% from the hash table. > >-Dan. Sorry if I'm dense: 25% of the times when the move stored in the hashtable was searched, it lead to a cutoff? I.e. you had a hashhit but the score and depth wasn't enough to exit the node? Of the remaining cases (no hashhit) the first move tried caused a cutoff in 92% of the cases? I guess I'm totally wrong but I just want to demonstrate how confused I am :) Ralf
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