Author: Tony Werten
Date: 00:37:13 06/20/02
Go up one level in this thread
On June 20, 2002 at 03:14:53, Kurt Utzinger wrote: >Personally spoken, I prefer matches with ponder=off. And this due to an >experiment made some years ago even played on_two_PC 486/86 with_two_programs at >level 120 min/40 moves. The first match over 20 games was played with ponder=on, >the second match [same openings] with ponder=off. And you will hardly believe >it, but in the match with ponder=off the overall average search depth per move >was higher than in the match with ponder=on. This seems to confirm what Dieter >Buerssner wrote on this subject. He said that he would prefer to do his private >tests with ponder=off as this method would use CPU time more efficiently because >the CPU cycles for pondering on wrong moves are not wasted. Maybe someone should >repeat such a test with the latest programs to have a good comparison between >the various programs. I don't think you need tests. Suppose we have 100 cycles to spend for 2 moves. ( 1 own, 1 ponder ) with pondering on: you get 25 cycles for the first move, 25 for the second. Assuming pondering is correct 75% of the time you get 25+(0.75*25)=43.75 cycles effectively. with pondering off: you get 50 cycles for the first move, 0 for the second=50 cycles effectively Tony >Kurt
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