Re: [computer-go] CGOS Engine does NOT use time control commands
I think it needs *time_settings* On Thu, Sep 10, 2009 at 12:37 PM, Isaac Deutsch i...@gmx.ch wrote: I always see this message when booting up CGOS. However, my program supports time_left and I also state this in list_commands. Time control would be much better if I got feedback from the server. How can I use it? Is there a special command I'm missing? Thanks, Isaac ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/ ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/
Re: [computer-go] Interesting endgame case
assuming komi 7.5 and Chinese rule, playing at J3 white will win. After J3, white has 35. It only needs to win the ko or takes two dames. If black fills the dame, it loses the ko. If it fills the ko, white can take two dames. On Fri, Aug 14, 2009 at 12:56 PM, Nick Wedd n...@maproom.co.uk wrote: In message 18d95a4b0a2748e39855f882ed6ce...@inspirone1705, Brian Sheppard sheppar...@aol.com writes 1 2 3 4 5 6 7 8 9 A - - O - - - - - - B X X X O X - - - - C O O X O X X - - - D O - O X X - X X - E - O O O X X O X X F - X O - X O O O X G - X O - X O O - O H O X O - X X O O - J - - - O X - X O - O to play I analyzed this position as a loss for O, as follows: What rules are you using? What is the komi? Nick O has 22 points at left, and will gain 1 point from F4/G4/H4 O has 13 points at right, with a Ko to potentially gain 2 O has two ways to win: the Ko on J6/J7, or gain two of F4/G4/H4 Since H4 is sente for X, O should start with H4. This looks winning for O because O will gain another point from F4/G4. Unfortunately, X can win both F4 and G4 by using his doomed stones on F2. Some variations: J2-J3-F1-E1-F4-G1-G4, and J2-F1-G1-E1-F4-J3-G4. If H4 does not win, then O must start his ko immediately with J6. X has ko threats with H9, H4, E1 (or F1). O has Ko threats with A4 and then A2 and H4 (which threatens to win by taking *two* of the dame from F4/G4/H4. Since X has more ko threats, it seems like O should not win. Extensive simulations supported this theory. But now I have a new version of Pebbles, and it says that O should win. What do you think? ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/ -- Nick Weddn...@maproom.co.uk ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/ ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/
Re: [computer-go] Reminder: April KGS bot tournament is tomorrow
Nick, I just read your comments. I appreciate it. I knew the StoneGrid was the weakest, but pleasantly surprised to see it managed to win one. I just started to work on the 19x19 versions lately, previously it mostly was about 9x9. It was early morning here when the tournament started, I did not stay up for the tournament. I got up for a few minutes, and took a peek at the games. My network was unstable, so I set it up to retry the kgsGtp once kgsGtp exits for any reason. I guess the delay you were seeing were due to that reason. By the way, my bot occasionally crashes due to some bug I could not identify. It only occurs rarely, and un-reproducible. So I set it to restart the bot once it received kgs-game-over. So the delay could be due to that reason as well. I did not realize there was a disagreement on the dead groups between CzechBot and StoneGrid until I read your summary. I will inspect the logs to see whether it is on my side or CzechBot's side. As for hardware, what you listed is right, it was running on L7700 core 2 duo. Thanks again, John Fan On Sat, Apr 4, 2009 at 5:07 AM, Nick Wedd n...@maproom.co.uk wrote: The April 2009 KGS computer Go tournament will be next Sunday, April 5th the Asian evening, European morning and American night, starting at 07:00 UTC/GMT (08:00 BST) and ending at 13:00 UTC/GMT (14:00 BST). There will be only one division. It will be a 6-round Swiss with 19x19 boards and 29 minutes each of main time. It will use Chinese rules with 7.5 points komi, and a very fast Canadian Overtime, of 25 moves in 20 seconds. There are details at http://www.gokgs.com/tournInfo.jsp?id=447. Registration is now open. To enter, please read and follow the instructions at http://www.weddslist.com/kgs/how/index.html. The rules are given at http://www.weddslist.com/kgs/rules.html. Please send your registration email (with the words KGS Tournament Registration in the title) to me at maproom at gmail dot com (converted to a valid address in the obvious way). Nick -- Nick Weddn...@maproom.co.uk ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/ ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/
Re: [computer-go] UEC cup
Kato, have you compared the speed of the simulations on PS3 SPE to the speed of the simulations on PC, given that the program is optimized for the cpu on both sides. On Mon, Dec 15, 2008 at 6:40 AM, Hideki Kato hideki_ka...@ybb.ne.jp wrote: Darren Cook: 49463016.1020...@dcook.org: Advertisement: Fudo Go used a desktop pc (Intel Q9550) and _eight_ Playstation 3 consoles on a private Gigabit Ethernet LAN. Hello Kato-sensei, Hello Darren, BTW, I'm not a sensei (Professor) but just a doctor course student of 55 years old :). Are you able to use all 8 cores of the playstation? So, with the 4 of the Q9550, 68 cores altogether? Do you, or your students, have any papers on the hardware challenges/solutions? Usual applications can use not 8 but 7 cores in fact because one SPU is used exclusively to protect the secured contents by firmware. PPU is not used for MC simulations but the commnunications over network etc. I used one core of Intel for the client (UCT tree searcher) and other three for internal MC simulators and 8 times 6 SPU's external. Thus, 51 cores are uesd for MC simulations in total. The eight PS3 consoles boosted Fudo Go by, perhaps, 2 or 3 stones (ranks) on 19 x 19. The difference of the performance between 4 and 8 PS3's is clear but I'm not sure all 6 SPU's are working in full duty, though I'll study it soon. My last paper on parallel MCTS has no description about the implementation for Cell BE. I'll submit longer paper in this month but if you want to know the detail of my implementation now, you can have the source code of Fudo-Go-2nd-UEC-Cup version, which is exactly what I used for the tournament. http://www.geocities.jp/hideki_katoh/release/fudo-go-2nd-uec-cup.tar.gz Hideki -- g...@nue.ci.i.u-tokyo.ac.jp (Kato) ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/ ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/
