Author: John Merlino
Date: 16:35:23 12/01/98
Go up one level in this thread
On December 01, 1998 at 15:38:34, Reynolds Takata wrote: >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 Actually, we're both right. There was a Windows 3.0 version and a DOS version. jm
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