Author: Robert Hyatt
Date: 15:05:43 08/06/02
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On August 06, 2002 at 12:13:05, Albert Silver wrote: >On August 05, 2002 at 11:50:09, Robert Hyatt wrote: > >>On August 05, 2002 at 01:51:12, Slater Wold wrote: >> >>>Bob, I saw on ICC that the latest version of Crafty you're working on is 19.0. >>> >>>I know in Crafty's history, version number changes signify major changes in >>>Crafty itself. >>> >>>So....what's the big change? :) >>> >>> >>>Thanks! >> >> >>Two things (so far). >> >>1. different way of limiting extensions. I am now using a "tapered" >>extension reduction so that extensions applied near the root are larger >>while those applied farther out are smaller. I also now allow more than >>one ply of extensions near the root... >> >>2. I am dropping msdos support and getting rid of the I/O polling model >>to handle pondering. I am using two threads, one to do I/O and one to do >>the search. It is cleaner... > >How is it so far? Better? Worse? Needs more debugging? > > Albert The extension approach seems better. But there are other eval issues that also need attention. I have a couple of weeks to work on it steadily now as we just finished Summer.
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