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| #!/usr/bin/env python3 | |
| # Copyright (c) Facebook, Inc. and its affiliates. | |
| # All rights reserved. | |
| # | |
| # This source code is licensed under the BSD-style license found in the | |
| # LICENSE file in the root directory of this source tree. | |
| import functools | |
| import logging | |
| import time | |
| from typing import Any, Dict, List, Tuple | |
| import torch | |
| import torch.distributed as dist | |
| from torch.distributed.logging_handlers import _log_handlers | |
| __all__: List[str] = [] | |
| def _get_or_create_logger() -> logging.Logger: | |
| logging_handler, log_handler_name = _get_logging_handler() | |
| logger = logging.getLogger(f"c10d-{log_handler_name}") | |
| logger.setLevel(logging.DEBUG) | |
| formatter = logging.Formatter( | |
| "%(asctime)s %(filename)s:%(lineno)s %(levelname)s p:%(processName)s t:%(threadName)s: %(message)s" | |
| ) | |
| logging_handler.setFormatter(formatter) | |
| logger.propagate = False | |
| logger.addHandler(logging_handler) | |
| return logger | |
| def _get_logging_handler(destination: str = "default") -> Tuple[logging.Handler, str]: | |
| log_handler = _log_handlers[destination] | |
| log_handler_name = type(log_handler).__name__ | |
| return (log_handler, log_handler_name) | |
| global _c10d_logger | |
| _c10d_logger = _get_or_create_logger() | |
| def _get_msg_dict(func_name, *args, **kwargs) -> Dict[str, Any]: | |
| if dist.is_initialized(): | |
| msg_dict = { | |
| "func_name": f"{func_name}", | |
| "args": f"{args}, {kwargs}", | |
| "pg_name": f"{dist._get_process_group_name(kwargs.get('pg'))}", # type: ignore[arg-type] | |
| "backend": f"{dist.get_backend(kwargs.get('group'))}", | |
| "world_size": f"{dist.get_world_size()}", | |
| "group_size": f"{dist.get_world_size(kwargs.get('group'))}", | |
| "global_rank": f"{dist.get_rank()}", | |
| "local_rank": f"{dist.get_rank(kwargs.get('group'))}", | |
| } | |
| if msg_dict["backend"] == "nccl": | |
| nccl_version = torch.cuda.nccl.version() | |
| msg_dict["nccl_version"] = ".".join(str(v) for v in nccl_version) | |
| else: | |
| msg_dict = { | |
| "func_name": f"{func_name}", | |
| "args": f"{args}, {kwargs}", | |
| } | |
| return msg_dict | |
| def _exception_logger(func): | |
| def wrapper(*args, **kwargs): | |
| try: | |
| return func(*args, **kwargs) | |
| except Exception as error: | |
| msg_dict = _get_msg_dict(func.__name__, *args, **kwargs) | |
| msg_dict["error"] = f"{error}" | |
| _c10d_logger.debug(msg_dict) | |
| raise | |
| return wrapper | |
| def _time_logger(func): | |
| def wrapper(*args, **kwargs): | |
| t1 = time.time_ns() | |
| func_return = func(*args, **kwargs) | |
| time_spent = time.time_ns() - t1 | |
| msg_dict = _get_msg_dict(func.__name__, *args, **kwargs) | |
| msg_dict["time_spent"] = f"{time_spent}ns" | |
| _c10d_logger.debug(msg_dict) | |
| return func_return | |
| return wrapper | |