Author: Tor Lattimore
Date: 14:11:44 08/10/04
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On August 10, 2004 at 11:07:17, Tord Romstad wrote: >On August 10, 2004 at 10:26:12, Andrew Williams wrote: > >>On August 10, 2004 at 08:38:28, Tor Lattimore wrote: >> >>>Hi. >>>I recently converted my program to MTD. It's working quite well and performing >>>just a tad better than the old alpha-beta with pvs + hash ec cetera... >>>my question is, what sort of drivers are people using, with what sort of steps? >>>I have been fiddling arround, with a little success, just interested to know >>>what others do. >>>Cheers >>>Tor >> >>Mine goes up or down in increasing steps up to size 7. I've tried all sorts of >>things over the years. What works out best will vary with the nature of your >>evaluation. > >I increase the step size all the way up to a pawn. When the direction of >the search changes (i.e. when the search fails in a different direction >compared to the previous searches), I reduce the step size to 1 again. > >I agree that the optimal approach will almost certainly depend on the >program. > >Tord Thanks, i'll try that system :)
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