Merge pull request #163 from ujh/release-0.2.2

Release 0.2.2

Author: ujh

.gitignore

@@ -1,3 +1,8 @@
 target/
-*-benchmark*
 .project
+
+# Ignore gogui-twogtp output in the root directory
+/*.sgf
+/*.dat
+/*.html
+/*.lock

CHANGELOG.md

@@ -1,4 +1,4 @@
-## 0.2.2 [☰](https://github.com/ujh/iomrascalai/compare/0.2.1...master) (unreleased)
+## 0.2.2 [☰](https://github.com/ujh/iomrascalai/compare/0.2.1...0.2.2)
 
 * A two liberty solver (can prove if a group with up to two stones is
   dead)
@@ -10,9 +10,14 @@
 
 ### Performance
 
-After running 100 games on 9x9 with komi 6.5 and a time limit of 5
-minutes (sudden death) the win rate against GnuGo 3.8 level 0 was **X%
-± Y%** for the default engine with 8 threads.
+After running 200 games on 9x9 with komi 6.5 and a time limit of 5
+minutes (sudden death) the win rate against GnuGo 3.8 level 0 was **70%
+± 3.2%** for the default engine with 8 threads.
+
+After running 200 games on 13x13 with komi 6.5 and a time limit of 10
+minutes (sudden death) the win rate against GnuGo 3.8 level 0 was **11%
+± 2.2%** for the default engine with 8 threads.
+
 
 ## 0.2.1 [☰](https://github.com/ujh/iomrascalai/compare/0.2.0...0.2.1)
 

Cargo.lock

@@ -2,7 +2,7 @@
 
 description = "An AI for the game of Go"
 name = "iomrascalai"
-version = "0.2.2-rc1"
+version = "0.2.2"
 authors = ["Urban Hafner <contact@urbanhafner.com>",
         "Thomas Poinsot <thomas.poinsot1@gmail.com>",
         "Igor Polyakov <iopguy+iomrasclai@gmail.com>"]

Cargo.toml

@@ -3,23 +3,38 @@
 DIR=$( cd $(dirname "${BASH_SOURCE[0]}") && pwd )
 cd "$DIR/.."
 
-set -ex
+set -x
 
-FN="gnugo-benchmark"
+SHA=`git rev-parse HEAD`
 
 cargo build --release
-rm -f $FN*
 
 THREADS=8
 
 GNUGO="gnugo --mode gtp --level 0 --chinese-rules --positional-superko --capture-all-dead --score aftermath --play-out-aftermath"
 IOMRASCALAI="./target/release/iomrascalai -r chinese -t $THREADS -l"
 REFEREE="$GNUGO"
 SIZE=9
-GAMES=100
+GAMES=200
 TIME="5m"
 
+FN="$SHA-9x9"
+
+gogui-twogtp -auto -black "$GNUGO" -white "$IOMRASCALAI" \
+             -size $SIZE -alternate -games $GAMES -sgffile $FN \
+             -time $TIME -referee "$REFEREE" -verbose -debugtocomment
+rm -f $FN.html
+gogui-twogtp -analyze $FN.dat
+
+
+
+
+SIZE=13
+TIME="10m"
+FN="$SHA-13x13"
+
 gogui-twogtp -auto -black "$GNUGO" -white "$IOMRASCALAI" \
              -size $SIZE -alternate -games $GAMES -sgffile $FN \
              -time $TIME -referee "$REFEREE" -verbose -debugtocomment
+rm -f $FN.html
 gogui-twogtp -analyze $FN.dat

bin/benchmark

@@ -130,11 +130,11 @@ impl Config {
                 priors: UctPriorsConfig {
                     capture_many: 30,
                     capture_one: 15,
-                    empty: 10,
+                    empty: 20,
                     neutral_plays: 10,
                     neutral_wins: 5,
                     self_atari: 10,
-                    use_empty: false,
+                    use_empty: true,
                 },
                 reuse_subtree: true,
                 tuned: true,

src/config/mod.rs

@@ -154,13 +154,14 @@ impl Node {
                 .iter()
                 .map(|&m| Node::new(m, self.config))
                 .collect();
-            if self.children.len() <= (game.size() * game.size() / 10) as usize {
+            let size = game.size() as usize;
+            if self.children.len() <= (size * size / 10) {
                 if !self.config.play_out_aftermath || game.winner() == game.next_player() {
                     //don't pass if we're losing on the board on CGOS, but otherwise it's OK
                     self.children.push(Node::new(Pass(game.next_player()), self.config));
                 }
             }
-            
+
             self.descendants = self.children.len();
         }
  }
@@ -172,31 +173,31 @@ impl Node {
                 .iter()
                 .map(|m| self.new_leaf(board, m))
                 .collect();
-                
+
             self.priors(&mut children, board);
             self.children = children;
-            
-            if self.children.len() <= (board.size() * board.size() / 10) as usize {
+            let size = board.size() as usize;
+            if self.children.len() <= (size * size / 10) {
                 let player = board.next_player();
                 if !self.config.play_out_aftermath || board.winner() == player {
                     //don't pass if we're losing on the board on CGOS, but otherwise it's OK
                     self.children.push(Node::new(Pass(player), self.config));
                 }
-                
+
             }
         }
 
-        
+
         self.descendants = self.children.len();
         not_terminal
     }
-    
+
     pub fn priors(&self, children: &mut Vec<Node>, board: &Board) {
             let color = board.next_player().opposite();
 
             let in_danger = board.chains().iter()
                 .filter(|chain| chain.color() == color && chain.coords().len() == 1 && chain.liberties().len() <= 2);
-                
+
             for one_stone in in_danger {
                 if let Some(solution) = board.capture_ladder(one_stone) {
                     if let Some(node) = children.iter_mut().find(|c| c.m() == solution) {
@@ -205,10 +206,10 @@ impl Node {
                     }
                 }
             }
-            
+
             let in_danger = board.chains().iter()
                 .filter(|chain| chain.color() == color && chain.coords().len() > 1 && chain.liberties().len() <= 2);
-   
+
             for many_stones in in_danger {
                 if let Some(solution) = board.capture_ladder(many_stones) {
                     if let Some(node) = children.iter_mut().find(|c| c.m() == solution) {
@@ -240,7 +241,7 @@ impl Node {
         }
         node
     }
-    
+
     fn in_empty_area(&self, board: &Board, m: &Move) -> bool {
         m.coord().manhattan_distance_three_neighbours(board.size())
             .iter()

src/engine/uct/node/mod.rs

@@ -20,5 +20,5 @@
  ************************************************************************/
 
 pub fn version() -> &'static str {
-    "0.2.2-rc1"
+    "0.2.2"
 }