199 lines
8.2 KiB
Python
199 lines
8.2 KiB
Python
import json
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import shlex
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import subprocess
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import sys
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import threading
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import time
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from typing import Callable, Optional
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from katrain.core.utils import OUTPUT_DEBUG, OUTPUT_ERROR, OUTPUT_EXTRA_DEBUG, OUTPUT_KATAGO_STDERR, find_package_resource, i18n
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from katrain.core.game_node import GameNode
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class EngineDiedException(Exception):
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pass
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class KataGoEngine:
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"""Starts and communicates with the KataGO analysis engine"""
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# TODO: we don't support suicide in game.py, so no "tt": "tromp-taylor", "nz": "new-zealand"
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RULESETS = {"jp": "japanese", "cn": "chinese", "ko": "korean", "aga": "aga"}
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RULESETS.update({v: v for v in RULESETS.values()})
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@staticmethod
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def get_rules(node):
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return KataGoEngine.RULESETS.get(str(node.ruleset).lower(), "japanese")
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def __init__(self, katrain, config):
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self.katrain = katrain
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executable = config["katago"].strip()
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if not executable:
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if sys.platform.startswith("win"):
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executable = "katrain/KataGo/katago.exe"
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elif sys.platform.startswith("linux"):
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executable = "katrain/KataGo/katago"
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else: # e.g. MacOS after brewing
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executable = "katago"
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modelfile, configfile, exefile = find_package_resource(config["model"]), find_package_resource(config["config"]), find_package_resource(executable)
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self.command = f'{exefile} analysis -model "{modelfile}" -config "{configfile}" -analysis-threads {config["threads"]}'
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if not sys.platform.startswith("win"):
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self.command = shlex.split(self.command)
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self.queries = {} # outstanding query id -> start time and callback
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self.config = config
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self.query_counter = 0
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self.katago_process = None
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self.base_priority = 0
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self.override_settings = {} # mainly for bot scripts to hook into
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self._lock = threading.Lock()
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self.analysis_thread = None
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self.stderr_thread = None
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self.start()
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def start(self):
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try:
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self.katrain.log(f"Starting KataGo with {self.command}", OUTPUT_DEBUG)
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self.katago_process = subprocess.Popen(self.command, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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except (FileNotFoundError, PermissionError, OSError) as e:
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if not self.config["katago"].strip():
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self.katrain.log(
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i18n._("Starting default Kata failed").format(command=self.comment, error=e), OUTPUT_ERROR,
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)
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else:
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self.katrain.log(
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i18n._("Starting Kata failed").format(command=self.comment, error=e), OUTPUT_ERROR,
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)
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self.analysis_thread = threading.Thread(target=self._analysis_read_thread, daemon=True).start()
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self.stderr_thread = threading.Thread(target=self._read_stderr_thread, daemon=True).start()
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def on_new_game(self):
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self.base_priority += 1
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self.queries = {}
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def restart(self):
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self.queries = {}
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self.shutdown(finish=False)
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self.start()
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def shutdown(self, finish=False):
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process = self.katago_process
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if finish and process:
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while self.queries and process.poll() is None:
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time.sleep(0.1)
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if process:
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process.terminate()
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self.katago_process = None
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if self.stderr_thread:
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self.stderr_thread.join()
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if self.analysis_thread:
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self.analysis_thread.join()
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def is_idle(self):
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return not self.queries
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def _read_stderr_thread(self):
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while self.katago_process is not None:
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try:
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line = self.katago_process.stderr.readline()
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if line:
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self.katrain.log(line.decode().strip(), OUTPUT_KATAGO_STDERR)
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except:
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return
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def _analysis_read_thread(self):
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while self.katago_process is not None:
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try:
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line = self.katago_process.stdout.readline()
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except OSError as e:
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raise EngineDiedException(i18n("Engine died unexpectedly").format(error=e))
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if b"Uncaught exception" in line:
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self.katrain.log(f"KataGo Engine Failed: {line.decode()}", OUTPUT_ERROR)
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return
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if not line:
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continue
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analysis = json.loads(line)
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if analysis["id"] not in self.queries:
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self.katrain.log(f"Query result {analysis['id']} discarded -- recent new game?", OUTPUT_DEBUG)
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continue
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query_id = analysis["id"]
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callback, error_callback, start_time, next_move = self.queries[query_id]
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if "error" in analysis:
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del self.queries[query_id]
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if error_callback:
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error_callback(analysis)
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elif not (next_move and "Illegal move" in analysis["error"]): # sweep
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self.katrain.log(f"{analysis} received from KataGo", OUTPUT_ERROR)
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elif "warning" in analysis:
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self.katrain.log(f"{analysis} received from KataGo", OUTPUT_DEBUG)
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else:
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del self.queries[query_id]
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time_taken = time.time() - start_time
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self.katrain.log(f"[{time_taken:.1f}][{analysis['id']}] KataGo Analysis Received: {analysis.keys()}", OUTPUT_DEBUG)
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self.katrain.log(line, OUTPUT_EXTRA_DEBUG)
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try:
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callback(analysis)
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except Exception as e:
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self.katrain.log(f"Error in engine callback for query {query_id}: {e}", OUTPUT_ERROR)
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if getattr(self.katrain, "update_state", None): # easier mocking etc
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self.katrain.update_state()
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def send_query(self, query, callback, error_callback, next_move=None):
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with self._lock:
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self.query_counter += 1
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if "id" not in query:
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query["id"] = f"QUERY:{str(self.query_counter)}"
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self.queries[query["id"]] = (callback, error_callback, time.time(), next_move)
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if self.katago_process:
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self.katrain.log(f"Sending query {query['id']}: {json.dumps(query)}", OUTPUT_DEBUG)
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try:
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self.katago_process.stdin.write((json.dumps(query) + "\n").encode())
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self.katago_process.stdin.flush()
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except OSError as e:
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self.katrain.log(i18n._("Engine died unexpectedly").format(error=e), OUTPUT_ERROR)
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return # do not raise, since there's nothing to catch it
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def request_analysis(
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self,
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analysis_node: GameNode,
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callback: Callable,
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error_callback: Optional[Callable] = None,
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visits: int = None,
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analyze_fast: bool = False,
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time_limit=True,
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priority: int = 0,
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ownership: Optional[bool] = None,
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next_move=None,
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):
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moves = [m for node in analysis_node.nodes_from_root for m in node.move_with_placements]
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if next_move:
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moves.append(next_move)
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if ownership is None:
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ownership = self.config["_enable_ownership"] and not next_move
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if visits is None:
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visits = self.config["max_visits"]
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if analyze_fast and self.config.get("fast_visits"):
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visits = self.config["fast_visits"]
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size_x, size_y = analysis_node.board_size
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settings = self.override_settings
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if time_limit:
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settings["maxTime"] = self.config["max_time"]
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if self.config.get("wide_root_noise", 0.0) > 0.0: # don't send if 0.0, so older versions don't error
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settings["wideRootNoise"] = self.config["wide_root_noise"]
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query = {
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"rules": self.get_rules(analysis_node),
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"priority": self.base_priority + priority,
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"analyzeTurns": [len(moves)],
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"maxVisits": visits,
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"komi": analysis_node.komi,
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"boardXSize": size_x,
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"boardYSize": size_y,
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"includeOwnership": ownership,
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"includePolicy": not next_move,
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"moves": [[m.player, m.gtp()] for m in moves],
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"overrideSettings": settings,
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}
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self.send_query(query, callback, error_callback, next_move)
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