Never thought that Alliestein was in the same level with LCZero and Stockfish !

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Chessqueen
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Never thought that Alliestein was in the same level with LCZero and Stockfish !

Post by Chessqueen » Fri Sep 13, 2019 12:34 am

To my surprise I just when to check the current standing in TCEC and was shocked by the performance of the young little cute Girl Alliestein
https://tcec-chess.com/

And this was an earlier version of Alliestein Vs Houdini ==> https://www.youtube.com/watch?v=qW3ir6zfnQA

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Graham Banks
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Re: Never thought that Alliestein was in the same level with LCZero and Stockfish !

Post by Graham Banks » Fri Sep 13, 2019 1:39 am

Even more shocking are the two crashes of Stockfish due to a faulty file.
One more crash and it's out.

The participant authors took a vote on whether or not the SF people should be allowed to replace that file. but because one voted no, it won't happen.
My email addresses:
gbanksnz at gmail.com
gbanksnz at yahoo.co.nz

corres
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Re: Never thought that Alliestein was in the same level with LCZero and Stockfish !

Post by corres » Fri Sep 13, 2019 9:06 am

Graham Banks wrote:
Fri Sep 13, 2019 1:39 am
Even more shocking are the two crashes of Stockfish due to a faulty file.
One more crash and it's out.

The participant authors took a vote on whether or not the SF people should be allowed to replace that file. but because one voted no, it won't happen.
Which file of Stockfish was faulty?
After many tests this is really a surprise.

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Graham Banks
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Re: Never thought that Alliestein was in the same level with LCZero and Stockfish !

Post by Graham Banks » Fri Sep 13, 2019 9:08 am

corres wrote:
Fri Sep 13, 2019 9:06 am
Graham Banks wrote:
Fri Sep 13, 2019 1:39 am
Even more shocking are the two crashes of Stockfish due to a faulty file.
One more crash and it's out.

The participant authors took a vote on whether or not the SF people should be allowed to replace that file. but because one voted no, it won't happen.
Which file of Stockfish was faulty?
After many tests this is really a surprise.
Offhand not sure - something to do with the compiler I think. They were discussing it in TCEC chat.
My email addresses:
gbanksnz at gmail.com
gbanksnz at yahoo.co.nz

RubiChess
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Re: Never thought that Alliestein was in the same level with LCZero and Stockfish !

Post by RubiChess » Fri Sep 13, 2019 10:10 am

They used a compiler and optimization options different from the regular builds to make the binary a little faster. Unfortunately a library used by this build is buggy and causes a deadlock sometimes.

zullil
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Re: Never thought that Alliestein was in the same level with LCZero and Stockfish !

Post by zullil » Fri Sep 13, 2019 10:16 am

corres wrote:
Fri Sep 13, 2019 9:06 am
Graham Banks wrote:
Fri Sep 13, 2019 1:39 am
Even more shocking are the two crashes of Stockfish due to a faulty file.
One more crash and it's out.

The participant authors took a vote on whether or not the SF people should be allowed to replace that file. but because one voted no, it won't happen.
Which file of Stockfish was faulty?
After many tests this is really a surprise.
The faulty file was a Windows dynamic library file: libwinpthread-1.dll. Due to insufficient testing and insufficient attention to prior bug reports, this buggy file was part of the package sent to TCEC by the Stockfish "team". The file itself is not part of the Stockfish code. At least, this is my understanding. So one more crash/hang by Stockfish and the engine is disqualified.

corres
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Re: Never thought that Alliestein was in the same level with LCZero and Stockfish !

Post by corres » Fri Sep 13, 2019 11:18 am

zullil wrote:
Fri Sep 13, 2019 10:16 am
corres wrote:
Fri Sep 13, 2019 9:06 am
Graham Banks wrote:
Fri Sep 13, 2019 1:39 am
Even more shocking are the two crashes of Stockfish due to a faulty file.
One more crash and it's out.

The participant authors took a vote on whether or not the SF people should be allowed to replace that file. but because one voted no, it won't happen.
Which file of Stockfish was faulty?
After many tests this is really a surprise.
The faulty file was a Windows dynamic library file: libwinpthread-1.dll. Due to insufficient testing and insufficient attention to prior bug reports, this buggy file was part of the package sent to TCEC by the Stockfish "team". The file itself is not part of the Stockfish code. At least, this is my understanding. So one more crash/hang by Stockfish and the engine is disqualified.
Thanks.
I did not know the official Stockfish use such .dll.
When I tried it I got very few speed up, if any.

mwyoung
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Re: Never thought that Alliestein was in the same level with LCZero and Stockfish !

Post by mwyoung » Fri Sep 13, 2019 11:36 am

Graham Banks wrote:
Fri Sep 13, 2019 1:39 am
Even more shocking are the two crashes of Stockfish due to a faulty file.
One more crash and it's out.

The participant authors took a vote on whether or not the SF people should be allowed to replace that file. but because one voted no, it won't happen.
That is ridiculous. Tcec is a computer chess fan driven site. Let's ask them!!!
Professing themselves to be wise, they became fools,
Take on me. foes 0

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MikeGL
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Re: Never thought that Alliestein was in the same level with LCZero and Stockfish !

Post by MikeGL » Fri Sep 13, 2019 11:40 am

corres wrote:
Fri Sep 13, 2019 11:18 am
zullil wrote:
Fri Sep 13, 2019 10:16 am
corres wrote:
Fri Sep 13, 2019 9:06 am
Graham Banks wrote:
Fri Sep 13, 2019 1:39 am
Even more shocking are the two crashes of Stockfish due to a faulty file.
One more crash and it's out.

The participant authors took a vote on whether or not the SF people should be allowed to replace that file. but because one voted no, it won't happen.
Which file of Stockfish was faulty?
After many tests this is really a surprise.
The faulty file was a Windows dynamic library file: libwinpthread-1.dll. Due to insufficient testing and insufficient attention to prior bug reports, this buggy file was part of the package sent to TCEC by the Stockfish "team". The file itself is not part of the Stockfish code. At least, this is my understanding. So one more crash/hang by Stockfish and the engine is disqualified.
Thanks.
I did not know the official Stockfish use such .dll.
When I tried it I got very few speed up, if any.
Yes, it was my impression too that Windows and OS/2 was designed to use DLL not to improve speed, but to save disk space. The intention was that similar API (libraries) inside the DLL file can be reused by most applications, hence saving small disk space.
Sorry, I am not claiming I am technically better than those SF programmers, but building a binary with additional DLL is _not_ optimum, in my opinion.
I told my wife that a husband is like a fine wine; he gets better with age. The next day, she locked me in the cellar.

zullil
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Joined: Mon Jan 08, 2007 11:31 pm
Location: PA USA
Full name: Louis Zulli

Re: Never thought that Alliestein was in the same level with LCZero and Stockfish !

Post by zullil » Fri Sep 13, 2019 11:48 am

corres wrote:
Fri Sep 13, 2019 11:18 am
zullil wrote:
Fri Sep 13, 2019 10:16 am
corres wrote:
Fri Sep 13, 2019 9:06 am
Graham Banks wrote:
Fri Sep 13, 2019 1:39 am
Even more shocking are the two crashes of Stockfish due to a faulty file.
One more crash and it's out.

The participant authors took a vote on whether or not the SF people should be allowed to replace that file. but because one voted no, it won't happen.
Which file of Stockfish was faulty?
After many tests this is really a surprise.
The faulty file was a Windows dynamic library file: libwinpthread-1.dll. Due to insufficient testing and insufficient attention to prior bug reports, this buggy file was part of the package sent to TCEC by the Stockfish "team". The file itself is not part of the Stockfish code. At least, this is my understanding. So one more crash/hang by Stockfish and the engine is disqualified.
Thanks.
I did not know the official Stockfish use such .dll.
When I tried it I got very few speed up, if any.
My understanding is that there is no real speed increase from using the linked library. But using it allows the MingW compiler to carry out LTO (link-time optimization), which does seem to give a good speed boost (at least on some systems, not mine).

I run Linux.

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