Author: Pat King
Date: 06:50:30 08/11/01
Go up one level in this thread
On August 10, 2001 at 16:04:18, Artem Pyatakov wrote: >I just implemented pondering in my program, but it seems that this has a >negative effect on average search depth in games. Here is my reasoning: > >1) My engine is not very strong, so especially in games against humans, the >percentage of the times when it ponders correctly in "indecisive positions" is >low. >(Aside question: What approximate percentages do programs like crafty have?) I am in exactly the same position. Zotron's rating sank slightly when I implemented pondering. In my case, it seems to be because my time management stuff went out the window because it's hard to know what you'll find in the hash table. > >2) So, let's say the ponder was incorrect. Wouldn't the ponder process have >ended up loading a lot of "junk" into the hash table and the history table? > This is no worse than having nothing, or very old stuff, in the table from not pondering at all. As to increasing the percentage of pondering "hits", I think this has a lot to do with move ordering, and I know I've got a lot of work still to do in this department. >Does this even sound reasonable? Has anyone run into this? Or is this most >probably a bug? Any suggestions/comments are appreciated. > >Thank you. > >Artem Pat
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.