[computer-go] MoGo/professional challenge

2008-03-21 Thread Nick Wedd
This Easter weekend, there will be a challenge between MoGo running on a very powerful system, and Catalin Taranu, 5-dan professional. The following is from the info of The Enclave room on KGS. It is confirmed by the page http://paris2008.jeudego.org/ quotation starts A unique challenge

Re: [computer-go] MoGo/professional challenge

2008-03-21 Thread Olivier Teytaud
For information on the mogo/pro challenge: - during preliminary tests, mogo has won 4/0 against a very high level human; at that time we were just very very very happy :-) - some other humans, supposed to be weaker, have however won some games at that time (before the nakade correction); -

Re: [computer-go] MoGo/professional challenge

2008-03-21 Thread Robert Jasiek
How well does the nakade improvement perform on 13x13? -- robert jasiek ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/

Re: [computer-go] MoGo/professional challenge

2008-03-21 Thread Olivier Teytaud
How well does the nakade improvement perform on 13x13? no idea on 13x13, but it does not work on 19x19 (seemingly, perhaps we just need tuning...). Also, it works only, in terms of success rate against the old mogo, for sufficiently large number of simulations per move. Olivier

Re: [computer-go] MoGo/professional challenge

2008-03-21 Thread Hiroshi Yamashita
This event sounds very interesting! Saturday: 3/23/08 3:00 PM Saturday: 3/22/08 3:00 PM is right? Regards, Hiroshi Yamashita ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/

Re: [computer-go] MoGo/professional challenge

2008-03-21 Thread Olivier Teytaud
Saturday: 3/23/08 3:00 PM Saturday: 3/22/08 3:00 PM is right? Hi; it's saturday 22. Olivier (stress++) ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/

Re: [computer-go] MoGo/professional challenge

2008-03-21 Thread Hiroshi Yamashita
Hi; it's saturday 22. Thanks! Regards, Hiroshi Yamashita ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/

Re: [computer-go] MoGo/professional challenge

2008-03-21 Thread Petr Baudis
Hi, On Fri, Mar 21, 2008 at 10:14:49AM +, Nick Wedd wrote: Saturday: 3/23/08 3:00 PM Game I (9x9) Game II 9x9 Game III 9x9 Played with 1.5 hours from the start of one round to the next will this be with komi 7.5? Petr Pasky Baudis

Re: [computer-go] MoGo/professional challenge

2008-03-21 Thread Olivier Teytaud
will this be with komi 7.5? Yes. Previous records against Guo Juan, as far as I know: - 1/3 wins with komi 7.5 - 9/14 wins with komi 0.5 (mogo black, i.e. komi in favor of mogo) Best regards, Olivier ___ computer-go mailing list

Re: [computer-go] MoGo/professional challenge

2008-03-21 Thread Robert Jasiek
Olivier Teytaud wrote: Previous records against Guo Juan, as far as I know: - 1/3 wins with komi 7.5 - 9/14 wins with komi 0.5 (mogo black, i.e. komi in favor of mogo) Has the program become that much stronger on 9x9 recently? (Compared to the version was trying?) -- robert

Re: [computer-go] MoGo/professional challenge

2008-03-21 Thread Don Dailey
The million dollar question: How well does Mogo scale on this number of processors?Can you give us at least some kind of generalization? My understanding is that on quad core machines you get most of the benefit by simply running parallel versions of the algorithm and sharing the data

Re: [computer-go] MoGo/professional challenge

2008-03-21 Thread Petr Baudis
On Fri, Mar 21, 2008 at 05:07:01PM +0100, Olivier Teytaud wrote: will this be with komi 7.5? Yes. Previous records against Guo Juan, as far as I know: - 1/3 wins with komi 7.5 - 9/14 wins with komi 0.5 (mogo black, i.e. komi in favor of mogo) What computing power did have

Re: [computer-go] MoGo/professional challenge

2008-03-21 Thread Olivier Teytaud
What computing power did have that MoGo at its disposal? 4 cores, 2.4 GHz. ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/

Re: [computer-go] MoGo/professional challenge

2008-03-21 Thread Petr Baudis
On Fri, Mar 21, 2008 at 08:35:25PM +0100, Olivier Teytaud wrote: What computing power did have that MoGo at its disposal? 4 cores, 2.4 GHz. Thank you! That also puts the strength of CzechBot into some perspective. :-) Petr Pasky Baudis

Re: [computer-go] MoGo/professional challenge

2008-03-21 Thread Olivier Teytaud
Has the program become that much stronger on 9x9 recently? (Compared to the version was trying?) *Parallelization: MPI == ~80% vs no mpi in 9x9 (for same number of cores). *Monte-Carlo improvement == strongly depends on number of simulations and number of cores (as the multi-core reduces

Re: [computer-go] MoGo/professional challenge

2008-03-21 Thread Don Dailey
Would you guess that mogo is 2 or 3 ranks stronger at 19x19 with all this hardware? I would love to see a fair match, perhaps a serious 2 or 3 dan player at 19x19 to be able to say with some certainty that Mogo has reached the dan levels. This assumes Mogo has reached this level of

Re: [computer-go] MoGo/professional challenge

2008-03-21 Thread Olivier Teytaud
The million dollar question: How well does Mogo scale on this number of processors?Can you give us at least some kind of generalization? unfortunately, using more than 10 nodes is probably not very very useful in 9x9, for the moment - but we have not tested that sufficiently, and we have

Re: [computer-go] MoGo/professional challenge

2008-03-21 Thread Olivier Teytaud
Would you guess that mogo is 2 or 3 ranks stronger at 19x19 with all this hardware? I just claim that mpi-mogo wins with very high probability against sequential-mogo in 19x19. But I'm afraid that the improvement is disappointing against humans. I hope better improvements are possible

Re: [computer-go] MoGo/professional challenge

2008-03-21 Thread Don Dailey
Olivier Teytaud wrote: Would you guess that mogo is 2 or 3 ranks stronger at 19x19 with all this hardware? I just claim that mpi-mogo wins with very high probability against sequential-mogo in 19x19. But I'm afraid that the improvement is disappointing against humans. Hopefully it is still

[computer-go] Lockless hash table and other parallel search ideas

2008-03-21 Thread RĂ©mi Coulom
Hi, I have got a lockless hash table to work, and I thought I'd share the results. A lockless hash table is very important, because the usual approach that consists in using a global lock during tree search and update does not scale well, especially on 9x9. But it is possible to create a

Re: [computer-go] MoGo/professional challenge

2008-03-21 Thread Sylvain Gelly
It was 2 cores 2.6GHz. (intel core2 duo). 2008/3/21, Olivier Teytaud [EMAIL PROTECTED]: What computing power did have that MoGo at its disposal? 4 cores, 2.4 GHz. ___ computer-go mailing list computer-go@computer-go.org

Re: [computer-go] Lockless hash table and other parallel search ideas

2008-03-21 Thread Don Dailey
These are used in parallel chess programs, and it's very common. A pretty good article on this written by Hyatt (Crafty programmer and author of former world computer chess champion Cray Blitz) and it's called A lock-less transposition table implementation for parallel search chess engines, I