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Subject: Re: CM8k patch - too many engines open in Game Room

Author: William Penn

Date: 17:33:17 02/14/01

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On February 14, 2001 at 14:45:10, John Merlino wrote:

>On February 14, 2001 at 00:16:43, William Penn wrote:
>
>>On February 13, 2001 at 23:33:50, William Penn wrote:
>>
>>>In Game Room, infinite time, with a human vs human game in progress:
>>>
>>>Even without any special user windows open, there is one king engine active as
>>>indicated by the Ctrl-Alt-Delete task window.  There is no reason for it to be
>>>active in a human vs human game! I don't think it should be open.
>>>
>>>Then if the Visual Thinking window is opened (Chessmaster button selected), or
>>>the Thinking Lines window (Chessmaster box checked), a second king engine is
>>>activated. With two king engines running simultaneously, that will slow
>>>things down greatly.  It makes use of those special windows impractical.
>>>
>>>Only one king engine was active with the original CM8k in this situation, so the
>>>patch has apparently introduced a new bug in that regard.
>>>
>>>I'm also now finding that with a user-defined personality as one of the players,
>>>three king engines may be active!?  Again, I don't believe that is necessary.
>>>It didn't work that way in the original CM8k, so it is apparently a bug
>>>introduced by the patch.
>>>
>>>In summary, it seems that because too many engines are opened by the Thinking
>>>Lines and Visual Thinking windows, they slow things down too much and are
>>>impractical to use.
>>>
>>>WP
>>
>>I have now confirmed that to be a fact with a test. The patched version is
>>generally only about half the speed of the original version when analyzing in
>>the Game Room, human vs human, infinite time, with the Thinking Lines or Visual
>>Thinking windows open.  For example a position which took 14 minutes to analyze
>>to 13-ply depth with the original CM8000, now takes 30 minutes to analyze to the
>>same 13-ply depth with the patch applied.
>>
>>Because that is my primary use for Chessmaster, I definitely can't use the patch
>>until/unless this problem is fixed.  Therefore I am uninstalling it and will
>>await further developments.
>>
>>Good luck!
>>WP
>
>I am also unable to repeat this. Does it happen if you just go straight to the
>Game Room on startup, with an initial Human vs. Human infinite game? Or do you
>have to "do something" to make it happen.
>
>Verify that neither the Visual Thinking or Thinking Lines windows are up by
>going to the Windows menu and making sure that there isn't a checkmark (i.e. a
>pawn symbol) next to their menuitems. If there IS one, then the window IS up and
>is, for some reason, not visible.
>
>If they are NOT visible, then I can't imagine what's going on. But any
>information on how you are getting it to happen on your machine would be useful.
>
>jm

I uninstalled the patch and won't investigate it further.
WP




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