Author: Bas Hamstra
Date: 04:00:11 11/25/99
Go up one level in this thread
On November 25, 1999 at 05:11:52, James Robertson wrote: >On November 25, 1999 at 03:50:30, Bas Hamstra wrote: > >>On November 24, 1999 at 20:16:31, William Bryant wrote: >> >>>On November 24, 1999 at 00:02:37, Jon Dart wrote: >>> >>>[Minor Snip] >>>> >>>>Maybe you've got over-aggressive forward pruning or lazy eval? >>>>(It could be a lot of other things, but these come to mind). >>>> >>>>--Jon >>> >>>Jon, >>> can I speculate that you _do_not_ do a lazy eval. I have been trying >>>to get this to work but it actually makes my program weaker. I suspect that >>>it is because my eval is not complex enought to make lazy eval time effective. >>> >>>You thoughts or comments? >>> >>>William >>>wbryant@ix.netcom.com >> >>I have tried Lazy Eval with different settings and found no big speed >>improvements. IE I never ever saw the 50% speed gain reported by Bob. I have a >>relatively big eval. >> >>Regards, >>Bas Hamstra. > >I gain a huge amount through lazy eval, even though my maximum positional score >is around three pawns. > >James But does it search *deeper* ? When I run the 50 hardest wacs for 5 sec/pos and I determine the average depth (thats what it is all about, no?) it don't seem to make a big difference. Say average depth without lazy is 9.00 and with at most 9.10 or so. Regards, Bas Hamstra.
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.