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70 lines
2.3 KiB
70 lines
2.3 KiB
# Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved. |
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# |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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import logging |
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import os |
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import sys |
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import paddle.distributed as dist |
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__all__ = ['setup_logger'] |
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logger_initialized = [] |
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def setup_logger(name="ppdet", output=None): |
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""" |
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Initialize logger and set its verbosity level to INFO. |
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Args: |
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output (str): a file name or a directory to save log. If None, will not save log file. |
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If ends with ".txt" or ".log", assumed to be a file name. |
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Otherwise, logs will be saved to `output/log.txt`. |
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name (str): the root module name of this logger |
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Returns: |
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logging.Logger: a logger |
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""" |
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logger = logging.getLogger(name) |
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if name in logger_initialized: |
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return logger |
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logger.setLevel(logging.INFO) |
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logger.propagate = False |
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formatter = logging.Formatter( |
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"[%(asctime)s] %(name)s %(levelname)s: %(message)s", |
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datefmt="%m/%d %H:%M:%S") |
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# stdout logging: master only |
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local_rank = dist.get_rank() |
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if local_rank == 0: |
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ch = logging.StreamHandler(stream=sys.stdout) |
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ch.setLevel(logging.DEBUG) |
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ch.setFormatter(formatter) |
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logger.addHandler(ch) |
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# file logging: all workers |
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if output is not None: |
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if output.endswith(".txt") or output.endswith(".log"): |
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filename = output |
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else: |
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filename = os.path.join(output, "log.txt") |
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if local_rank > 0: |
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filename = filename + ".rank{}".format(local_rank) |
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os.makedirs(os.path.dirname(filename)) |
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fh = logging.FileHandler(filename, mode='a') |
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fh.setLevel(logging.DEBUG) |
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fh.setFormatter(logging.Formatter()) |
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logger.addHandler(fh) |
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logger_initialized.append(name) |
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return logger
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