Author: Kurt Utzinger
Date: 03:32:43 10/08/02
Go up one level in this thread
On October 08, 2002 at 05:52:11, Bernhard Bauer wrote: >On October 08, 2002 at 03:01:00, Kurt Utzinger wrote: > >>On October 07, 2002 at 23:11:32, Robert Hyatt wrote: >> >>>On October 07, 2002 at 18:33:43, Jeremiah Penery wrote: >>> >>>>On October 07, 2002 at 18:29:35, Uri Blass wrote: >>>> >>>>>On October 07, 2002 at 18:19:29, Jorge wrote: >>>>> >>>>>>This may be a dumb question, but could someone tell me the reason for setting >>>>>>Ponder=off in comp to comp matches? If two computers with the same hardware with >>>>>>different, each with a program playing each other, why set ponder off? >>>>>> >>>>>>thnx, >>>>>>jorge >>>>> >>>>>Usually the people who play games with ponder off use only one computer and not >>>>>2 computers. >>>> >>>>Why set ponder off with one computer? >>> >>> >>>The basic idea is that one computer matches are not very informative. You have >>>two >>>choices: >>> >>>1. Ponder=on. Engines can "steal" time from each other since both will be >>>computing most >>>of the time. Unless one is unlucky enough to not have anything to ponder. For >>>that move, the >>>opponent runs twice as fast. >>> >>>2. Ponder=off. This might cause poor time utilization as it is an unnatural >>>way to run and >>>is not always very well tested. >>> >>>Either way causes problems. Moral? Use two computers or else don't pay a >>>significant amount >>>of attention to the results. >> >> >>Previous and still running tests with quite a lot of games in Germany prove that >>there is no significant difference in results between matches played with either >>ponder on/off. And most surprisingly - contrary to your assumption - this also >>refers to Crafty. >>Kurt >> >> >>The running test > >As many computer chess fans are only interested in results and not in game >quality it doesn't matter wether you play with ponder on or off. >And it doesn't matter wether you play a game using 2 hours for 40 moves or only >1 hour. The results are the same. >And it doesn't matter wether you play a game using 1 hours for 40 moves or only >30 minutes. The results are the same. I think that has been proven in Germany. >And Crafty plays better without ponder than with ponder has been posted in >Germany too. >So what? Let them play without ponder at all. >regards >Bernhard Hi Bernhard Your conclusion is wrong. If you use two PC's and let one program play with ponder=on and the other one with ponder=off, the program without ponder will have no chance. Kurt
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