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解析出力が未反映のミニバッチを含まず、探索回数がバッチサイズ未満のときゼロ除算で異常終了する問題を修正 #124

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解析出力が未反映のミニバッチを含まず、探索回数がバッチサイズ未満のときゼロ除算で異常終了する問題を修正 #124

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5 changes: 4 additions & 1 deletion mcts/node.py
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Original file line number Diff line number Diff line change
Expand Up @@ -472,8 +472,11 @@ def get_analysis_from_status_list(self, mode: str,
"""
out = ""
if mode == "cgos":
# 探索結果が未反映 (node_visits == 0) の場合はゼロ除算を避け、
# ニューラルネットワークの評価値で代用する
cgos_dict = {
"winrate" : float(self.node_value_sum) / self.node_visits,
"winrate" : float(self.node_value_sum) / self.node_visits \
if self.node_visits > 0 else float(self.raw_value),
"visits" : self.node_visits,
"moves" : []
}
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4 changes: 4 additions & 0 deletions mcts/tree.py
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Original file line number Diff line number Diff line change
Expand Up @@ -162,6 +162,10 @@ def search(self, board: GoBoard, color: Stone, time_manager: TimeManager, \
break

if len(analysis_query) > 0 and interval == 0:
# 未反映のミニバッチ (最大 batch_size - 1 プレイアウト) を
# 反映してから解析結果を出力する
if len(self.batch_queue.node_index) > 0:
self.process_mini_batch(board)
root = self.node[self.current_root]
mode = analysis_query.get("mode", "lz")
sys.stdout.write(root.get_analysis(board, mode, self.get_pv_lists))
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