[Computer-go] CrazyStone in the 5-dan footsteps of Zen

[Rémi Coulom]

On 2 janv. 2012, at 20:12, David Fotland wrote:

> Very impressive.  Does anyone know the relative hardware?  I think the 5 dan
> Zen was running on 26 cores.

Thanks for the nice comments. I am running on 24 cores (Dell PowerEdge R905 Rack Server, 4 x Six-Core AMD Opteron(tm) Processor 8439 SE, 2.8GHz). But it is only one machine. So my 24 cores are probably much more efficient than the 26 cores of Zen.

> 
> Remi, can you tell us how much of the benefit was due to CLOP?  It's an
> excellent tool BTW.  Thank you for sharing it.

The big improvement I got recently came from tuning one parameter that I had forgotten to tune for a few years. I tuned it with CLOP, but I would have probably got the same result if I had tuned it manually (about +100 Elo in self play, both on 9x9 and 19x19). CLOP simply makes tuning a lot more convenient. I really enjoy using it very much. I am glad if people like it too.

I also fixed a silly bug that was worth 30 Elo in self-play.

Improving the KGS rank at 5d is very difficult. The current experimental version of Crazy Stone wins 78% against Crazy Stone 2011. That's less than one stone difference on KGS. But I am sure both Zen and Crazy Stone will reach 6d in 2012.

Rémi

> 
> -David
> 
>> -----Original Message-----
>> From: computer-go-bounces at dvandva.org [mailto:computer-go-
>> bounces at dvandva.org] On Behalf Of "Ingo Althöfer"
>> Sent: Monday, January 02, 2012 11:04 AM
>> To: computer-go at dvandva.org
>> Subject: [Computer-go] CrazyStone in the 5-dan footsteps of Zen
>> 
>> Hello everybody,
>> 
>> let us start the new year also in the mailing list.
>> It seems that Zen is finding a strong contender for
>> its position as leading bot on KGS.
>> Starting on December 29, Crazy Stone (by Remi Coulom)
>> has started a long playing session in KGS computer room,
>> and has now established a stable 5-dan rating.
>> 
>> See the rating diagram for CrazyStone at
>> http://www.gokgs.com/graphPage.jsp?user=crazystone
>> 
>> and the list of games at
>> http://www.gokgs.com/gameArchives.jsp?user=crazystone&year=2011&month=12
>> and
>> http://www.gokgs.com/gameArchives.jsp?user=crazystone&year=2012&month=1
>> 
>> Ingo
>> (wishes to see bots with 6-dan ranks on KGS
>> before the European Go Congress in July 2012)
>> --
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