Author: Gregory Owett
Date: 10:55:42 11/05/05
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On November 05, 2005 at 12:55:08, Robert Hyatt wrote: >On November 05, 2005 at 08:47:34, Gregory Owett wrote: > >>When Crafty plays vs another engine, in adjustment "ponder=off", it is pondering >>and the taskmrg indicates 99% to Crafty and 0% to the other. Even if its >>adversary plays, the indicator gives him 50% and 50% to the other engine, >>whereas Crafty should have 0%. Does it profit from the time of reflection of >>the other engine? If not, why it does not release the processor? >> >>Gregory > > >If you _truly_ have ponder=off, then when crafty is not thinking, it is not >using the CPU. Unfortunately, some GUIs ignore what is in the >crafty.rc/.craftyrc initialization file and set whatever options they want. For >example, xboard/winboard likes the "easy/hard" option better and will set >ponder=on or off depending on the command line option, overriding the >crafty.rc/.craftyrc file. > >If your GUI has the ability to turn pondering off, do that... I thought that it does not use the CPU, but I was not sure. What is a little more serious (for its adversary abowe all), it prevents the other engine from using 100% the processor while this one is pondering. For ex. when Crafty plays against Zappa, Zappa can use also one proc. Off course, "ponder off" was setting under CB GUI. Thank you in any case for your answer. Gregory
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