Author: Mark Young
Date: 17:13:55 02/04/04
Go up one level in this thread
On February 04, 2004 at 17:46:28, Andrew Dados wrote: >On February 04, 2004 at 17:34:33, C McClain Morris, Jr. wrote: > >>How did you go about determining hash table size for Crafty on that hardware in >>the tournament? Is there a formula you use for determing hash table size for >>various time controls? And, by the way, congratulations. > >Hash table formula is simple: As big as you can without OS paging. Has nothing >to do with time controls of the game. Where did that urban legen start? I could be wrong... Older chess programs would clear their hash tables after each move. And it took the computer time to clear a hugh hash table at fast time controls. Slowing down the chess program. Clearing of the hash tables is no longer done in most of the stronger programs of today. So now bigger is better. > >-Andrew-
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