About Ray
Ray is a Go (Weiqi, Baduk) game engine based on Monte-Carlo tree search without Deep Learning.
日本語はこちら.
Installation
- 'cd' to the directory which includes 'Makefile'
- Type 'make' to compile
How to run
By default settings, Ray will consume 10 seconds each move on a single CPU and require 800MB of memory.
./ray
Ray has some options :
Setting the total number of playouts per move (3000 PO/move). Default is 10000.
./ray --playout 3000
Ray plays with time settings 30:00 (1800 seconds).
./ray --time 1800
Ray runs on 13x13. Default is 19x19 (Maximum is also 19x19). You can ignore it if GTP sends 'boardsize' command.
./ray --size 13
Ray considers 5 seconds each move.
./ray --const-time 5
Setting the number of threads. Default is 1 (Maximun is 32).
./ray --thread 4
Setting komi value. Default is 6.5. You can ignore this command if GTP sends 'komi' command.
./ray --komi 7.5
Setting the number of handicap stones for test. This makes Ray ignore komi command from GTP.
./ray --handicap 4
This makes Ray use subtree if it exist. Default is off. This command saves Ray's remaining time.
./ray --reuse-subtree
This makes Ray think during the opponent's turn. (Automatically, this command turns 'reuse-subtree mode' on)
./ray --pondering
Setting the number of uct nodes. Default is 16384. If you want to run Ray with many threads and a long time setting, I recommend you to use this command. The number of nodes must be 2^n.
./ray --tree-size
Ray never print Ray's log.
./ray --no-debug
Ray avoids positional-superko move.
./ray --superko
e.g.
Playing with 4 sec/move with 8 threads
./ray --const-time 4 --thread 8
Playing with 1000 playouts/move with 1 threads
./ray --playout 1000
Playing with 16 threads and 65536 uct nodes. Time setting is 30 minutes. Ray thinks during the opponent's turn.
./ray --time 1800 --thread 16 --tree-size 65536 --pondering
License
Ray is distributed under the BSD License. Please see the "COPYING" file.
Contact
rayauthor19x19@gmail.com (Yuki Kobayashi)
