Author: Reynolds Takata
Date: 12:38:34 12/01/98
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On December 01, 1998 at 15:02:48, John Merlino wrote: >On November 30, 1998 at 02:03:43, Christophe Theron wrote: > >>On November 30, 1998 at 00:16:47, Reynolds Takata wrote: >> >>>I attempted to play CM3000(in micro chess layout) against CM4000, CM5500, and >>>CM6000. CM3000 was actually winning about 30% of the games! I expected that it >>>wouldn't win any, as i have found CM3000 positionally weak, though the tactics >>>aren't too bad. These games were on one comp running both progs, how much >>>effect should this have? >> >>If you play programs on one computer, you should disable thinking on opponent's >>time on both, or else the result means nothing. >> >> >> Christophe > >The main problem is verifying that both engines are getting equal CPU time. >Unfortunately, this is highly unlikely because Chessmaster 3000 is a DOS >application and 4000 and 5500 are Windows applications. Due to the way Windows >switches back and forth between DOS applications, it is very unlikely that both >programs are getting relatively equal time to think, regardless of whether you >have both engines thinking during their opponent's time. >Windows tends to give a higher priority to DOS applications, which accounts for >CM3000's unexpectedly high win percentage. >Turning off "deep thinking" will not make a difference as far as CPU time goes, >because Windows switches back and forth between apps very quickly. What it WILL >do, however, is make the engines play worse overall. And, I imagine that this is >unintended. > >jm CM3000 is a windows program. RT
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