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Subject: Re: Pro Deo 1.1 and Rebel XP style question

Author: Eelco de Groot

Date: 11:52:44 06/18/05

Go up one level in this thread


On June 18, 2005 at 13:38:03, Kaj Soderberg wrote:

>On June 18, 2005 at 05:12:03, Ed Schröder wrote:
>
>>On June 18, 2005 at 02:47:08, Kaj Soderberg wrote:
>>
>>>On June 17, 2005 at 16:57:25, Ed Schröder wrote:
>>>
>>>>On June 17, 2005 at 16:44:35, Eelco de Groot wrote:
>>>>
>>>>>On June 17, 2005 at 16:22:22, Ed Schröder wrote:
>>>>>
>>>>>>On June 17, 2005 at 15:52:03, Kaj Soderberg wrote:
>>>>>>
>>>>>>>Thank you Ed,
>>>>>>>
>>>>>>>Now i can use my old favourite good tactical, and yet positionally sound, engine
>>>>>>>and compare it with "Silver".
>>>>>>>
>>>>>>>By the way, i have noticed that Pro Deo sometimes (not often of course)in the
>>>>>>>end sort of crashes in analysis mode. The suggested move seems correct and the
>>>>>>>evaluation too, but in the suggested variation it gives away tons of material
>>>>>>>for no reason at all and therefore should lose. I found this out at 400 mb hash
>>>>>>>and then checked it on 200mb to see if it is maybe a hash problem, but the
>>>>>>>problem still occurs. Rebel 12 did the same (again not often) in analysis mode.
>>>>>>>In DOS i have never seen this occur.
>>>>>>>
>>>>>>>I run the beast under ChessPartner with Intel Centrino at 2ghz end one gig of
>>>>>>>memory. Any idea what could be the case, or is it just a problem with displaying
>>>>>>>the right variation? I seem to remember that Thorsten Czub once run into
>>>>>>>something similar.
>>>>>>
>>>>>>
>>>>>>I occasionally face the same (a crash) under ChessPartner after a long time in
>>>>>>analysis mode. Annoying indeed and since it is not reproducible I have no idea
>>>>>>what possibly might be the cause.
>>>>>>
>>>>>>Ed
>>>>>
>>>>>
>>>>>Hallo Ed, I think I can report something very similar:
>>>>>
>>>>>I have not seen any "sort of crashes" but twice ProDeo 1.1 really crashed on my
>>>>>computer in analysis mode. Both times it was just before finishing a 24 hour
>>>>>analysis, so I expect it to be some sort of overflow, of the nodecounters maybe?
>>>>>Windows terminates Pro Deo and asks to file a report. What I can see in
>>>>>Dr.Watson's log that comes with Win XP is that both times there occurs a
>>>>>division by zero. But what exactly gets divided is not clear to me.
>>>>
>>>>Thanks Eelco, the "24 hours" item makes me hear all kind of bells ringing. It's
>>>>perhaps so that after 24 hours the internal clock is set to zero. I must
>>>>check...
>>>>
>>>>Ed
>>
>>>At the speed of my machine, the earliest "crash" i witnessed in the display was
>>>after 15 minutes and 50 seconds. You mention this problem occurs when running in
>>>ChessPartner. Would that suggest that this problem does not occur in other GUIs?
>>
>>I wouldn't know, I exclusively use my DOS version or CP for manual testing.
>>
>>Ed
>
>I checked it under Chessbase. No direct crash, but suddenly there was no
>(new)engine info when reaching a new ply. The new ply was not reported. Maybe it
>the "crashed".
>
>I may downlodad the Shredder interface and check wat the engine does there.
>
>I would not mind if you would give the Pro Deo downloadable as a DOS version
>also. I would use it anyway.
>
>Best regards,
>
>Kaj

Not speaking for Ed, but I think I've seen that when I tried Pro Deo 1.1 in the
Shredder interface as UCI-engine, but only -I hope!- when Pro Deo could not find
a proper personality file. In param.txt there was no personality loaded. The
program played considerably weaker and I think a couple of times a new ply was
reached -I could see that in Uci-debug mode from Shredder- but not communicated
as a new iteration.

I hope this was only in the version of Pro Deo that gets loaded if it cannot
find a personality file. It is possible to check that with param.txt

 Regards, Eelco





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