Author: Ralf Elvsén
Date: 16:14:49 06/24/00
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On June 24, 2000 at 17:42:30, Peter Kappler wrote: >On June 24, 2000 at 17:13:47, eric guttenberg wrote: > >>I have noticed quite a few recent posts reporting program vs. program >>results obtained on a single computer. I continue to be a little mis- >>trustful of those results as a reliable indicator of the relative >>playing strengths of the programs. It has always seemed to me that some >>programs are more greatly affected by the 1-machine format than others. >>Is my concern misplaced here? Is there now some consensus that the >>results are not in the long run different because a single machine rather >>than 2 separate but identical machines are used? >> >>eric > > >I've always thought it doesn't make a big difference as long as both programs >play with pondering disabled. > >A couple of months ago, someone (chessfun?) played a long series of matches >played between Fritz and Crafty. Several different time control were used, with >each match played first on a single computer, and then on two computers. As I >recall, the results were practically identical over a large number of games. > >Crafty seemed to do better as the time controls got longer, but that's another >issue. > >Maybe that person could post the results again? > >--Peter And at the same time, some people started arguing that ponder = ON was the best setup, preferably combined with some system utility that could check that the programs got 50% each of the processor power (I'm talking about one-processor systems). Was this a shift in the conventional wisdom, which for quite a while had been that ponder = OFF was best. Eh... conventional wisdom for those who cared about one-processor matches :) I am still as confused as ever. I comfort myself with the fact that these matches never have statistical significance so it doesn't matter anyway :) Ralf
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