Controller for process-based parallel evolution
| 372 | |
| 373 | |
| 374 | class ProcessParallelController: |
| 375 | """Controller for process-based parallel evolution""" |
| 376 | |
| 377 | def __init__( |
| 378 | self, |
| 379 | config: Config, |
| 380 | evaluation_file: str, |
| 381 | database: ProgramDatabase, |
| 382 | evolution_tracer=None, |
| 383 | file_suffix: str = ".py", |
| 384 | ): |
| 385 | # Store main configuration |
| 386 | self.config = config |
| 387 | self.evaluation_file = evaluation_file |
| 388 | self.database = database |
| 389 | self.evolution_tracer = evolution_tracer |
| 390 | self.file_suffix = file_suffix |
| 391 | |
| 392 | # Executor will be initialized in start() |
| 393 | self.executor: Optional[ProcessPoolExecutor] = None |
| 394 | # Event to signal shutdown to main loop |
| 395 | self.shutdown_event = mp.Event() |
| 396 | self.early_stopping_triggered = False |
| 397 | |
| 398 | # Number of worker processes from config |
| 399 | self.num_workers = config.evaluator.parallel_evaluations |
| 400 | self.num_islands = config.database.num_islands |
| 401 | |
| 402 | logger.info(f"Initialized process parallel controller with {self.num_workers} workers") |
| 403 | |
| 404 | def _serialize_config(self, config: Config) -> dict: |
| 405 | """Serialize config object to a dictionary that can be pickled""" |
| 406 | # Manual serialization to handle nested objects properly and avoid unpickleable types |
| 407 | |
| 408 | # The asdict() call itself triggers the deepcopy which tries to serialize novelty_llm. Remove it first. |
| 409 | config.database.novelty_llm = None |
| 410 | |
| 411 | return { |
| 412 | "llm": { |
| 413 | "models": [asdict(m) for m in config.llm.models], |
| 414 | "evaluator_models": [asdict(m) for m in config.llm.evaluator_models], |
| 415 | "api_base": config.llm.api_base, |
| 416 | "api_key": config.llm.api_key, |
| 417 | "temperature": config.llm.temperature, |
| 418 | "top_p": config.llm.top_p, |
| 419 | "max_tokens": config.llm.max_tokens, |
| 420 | "timeout": config.llm.timeout, |
| 421 | "retries": config.llm.retries, |
| 422 | "retry_delay": config.llm.retry_delay, |
| 423 | }, |
| 424 | "prompt": asdict(config.prompt), |
| 425 | "database": asdict(config.database), |
| 426 | "evaluator": asdict(config.evaluator), |
| 427 | # (+) Serialize new config sections |
| 428 | "browser_use": asdict(config.browser_use), |
| 429 | "computer_use": asdict(config.computer_use), |
| 430 | # Scalar fields |
| 431 | "max_iterations": config.max_iterations, |