Author: Odd Gunnar Malin
Date: 23:32:48 07/22/03
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On July 22, 2003 at 18:24:38, Bob Durrett wrote: > >If all chess engines utilize their hash tables in much the same way, might there >be some benefit in standardizing the tables and standardizing the way data is >stored in them? Could a way be found to switch engines but keep the same hash >table and it's contents? > The important values in the hashtable are evaluation-score together with a depth (ply) parametre for a position. If this should be reused in another engine the evaluation score must be the same for the same position. Eg. the only difference between engines are speed. This is of course not wanted and even when you adjust a parametre in the same engine you have to clear the hash table before a new search. Within the same engine you could freeze the hashtable if you want to use the PC for another job or run another engine. I only know of Winboard engines that can do this (it is in the protocol). This frozen hashtable could be saved to a file for later use, but maybe only a feature for a corr. player. I don't know any engine with this ability. Odd Gunnar
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