Author: David Blackman
Date: 21:23:51 06/25/99
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On June 25, 1999 at 22:02:45, James Robertson wrote: >My program typically spends 2/3 (or more) of it's nodes in the quiescence >search. Since this is the only place I call my evaluation function, it means >that it is spending more than 2/3 of the total time in the quiescene search. I >even have SEE and delta pruning (a la EXchess).... I am really looking for and >hoping for ways to reduce the percentage of my search spent quiesceing. I looked >at EXchess, and from the node counts it displays, it looks as if it only spends >about 10% quiescing! How does Dan do this? Are there any useful pruning >techniques? How much time does Crafty spend in the quiescence search? > >Thanks for all help! >James Maybe you are comparing apples and oranges. The way i count quiescence nodes it's hard to see how less than 50% of total nodes could be in the quiescence search. Anyone getting less consistently is probably either counting differently or doing a radically different type of search. 2/3 is probably ok, but don't give up on trying to improve it :-)
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