Got it :-). Thanks.
Le 12 janv. 2015 14:59, "Nick Wedd" a écrit :
> Congratulations to Zen19S, undefeated winner of yesterday's 19x19 KGS
> bot tournament!
>
> My report is http://www.weddslist.com/kgs/past/109/index.html
> As usual, I hope you will report any errors or comments to me.
>
> Nick
>
> It would be interesting to know how well Pachi scales on KGS against
> ranked humans vs a single core version.
Yes it would be interesting but it's a bit difficult to run this experiment.
The software and its parameters is constantly changing. We can't
create a new kgs bot for every new version
> What is your 23 core hardware?
It's actually 24 cores but I'm leaving 1 core free for the OS and other
background tasks. The chips are commercially available, search for
"6 cores" or "24 cores" on your favorite search engine.
Jean-loup
___
computer-go
> The strong pachi is really strong! What hardware is it running on?
> Can you say how it differs from the vanilla pachi?
It's exactly the same software. The only difference is that is
running on 23 cores. I am amazed at how well MCTS scales on 19x19.
Looking forward to desktop machines with thou
> or the strong version of pachi.
Done.
Jean-loup
2010/2/16 David Fotland
> My old MPI code had a scaling bug. Performance scaling (playouts per
> second) was linear, but the strength did not scale well, and 64 cores was
> weaker than 32 cores. I have a 16 core cluster of my own now (four 2.
ssible).
Jean-loup
2010/2/11 Robert Jasiek
> Jean-loup Gailly wrote:
>
>> I would write the proof as follows.
>>
>> Assume x is the value of one move
>>
>
> Yours is not a proof because what follows is not just a single move of
> value x but a game tree o
this, halving the initial komi from 66 to about 35 points,
> wouldn't that force to bot to play more efficient, sharp moves ?
>
> What I'm afraid of, though, is that after a while ( when the bot has caught
> up enough) it might start again to play slack again ?
>
> Matthie
> Pachi uses 7.5 points per handicap stone
Pachi is wrong. See the first paragraph of "There is a relationship"
in http://senseis.xmp.net/?Komi/valueOfFirstMove
The rest of the page is quite confusing but but the value of one move
at the beginning of a game is definitely twice the komi.
A move ear
I did some 19x19 scalability experiments with pachi, written by Petr Baudis.
This was run on one machine using 15 out of 16 2.2 GHz cores, against
Fuego using 100K playouts on 15 cores of another machine. The results
are encouraging. Pachi's strength continues scaling linearly (in elo)
with each d
