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# SPDX-FileCopyrightText: Copyright (c) 2022-2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
import os
import sys
import tensorrt as trt
try:
from polygraphy.logger import G_LOGGER
except ImportError:
G_LOGGER = None
class Singleton(type):
_instances = {}
def __call__(cls, *args, **kwargs):
if cls not in cls._instances:
cls._instances[cls] = super(Singleton,
cls).__call__(*args, **kwargs)
return cls._instances[cls]
class Logger(metaclass=Singleton):
INTERNAL_ERROR = '[F]'
ERROR = '[E]'
WARNING = '[W]'
INFO = '[I]'
VERBOSE = '[V]'
DEBUG = '[D]'
def __init__(self):
environ_severity = os.environ.get('TLLM_LOG_LEVEL')
self._set_from_env = environ_severity is not None
min_severity = environ_severity.lower(
) if self._set_from_env else "warning"
invalid_severity = min_severity not in severity_map
if invalid_severity:
min_severity = "warning"
self._min_severity = min_severity
self._trt_logger = trt.Logger(severity_map[min_severity][0])
logging.basicConfig(level=severity_map[min_severity][1],
format='[%(asctime)s] %(message)s',
datefmt='%m/%d/%Y-%H:%M:%S',
stream=sys.stdout)
self._logger = logging.getLogger('TRT-LLM')
self._polygraphy_logger = G_LOGGER
if self._polygraphy_logger is not None:
self._polygraphy_logger.module_severity = severity_map[
min_severity][2]
if invalid_severity:
self.warning(
f"Requested log level {environ_severity} is invalid. Using 'warning' instead"
)
def _func_wrapper(self, severity):
if severity == self.INTERNAL_ERROR:
return self._logger.critical
elif severity == self.ERROR:
return self._logger.error
elif severity == self.WARNING:
return self._logger.warning
elif severity == self.INFO:
return self._logger.info
elif severity == self.VERBOSE or severity == self.DEBUG:
return self._logger.debug
else:
raise AttributeError(f'No such severity: {severity}')
@property
def trt_logger(self) -> trt.ILogger:
return self._trt_logger
def log(self, severity, msg):
msg = f'[TRT-LLM] {severity} ' + msg
self._func_wrapper(severity)(msg)
def critical(self, msg):
self.log(self.INTERNAL_ERROR, msg)
fatal = critical
def error(self, msg):
self.log(self.ERROR, msg)
def warning(self, msg):
self.log(self.WARNING, msg)
def info(self, msg):
self.log(self.INFO, msg)
def debug(self, msg):
self.log(self.VERBOSE, msg)
@property
def level(self) -> str:
return self._min_severity
def set_level(self, min_severity):
if self._set_from_env:
self.warning(
f"Logger level already set from environment. Discard new verbosity: {min_severity}"
)
return
self._min_severity = min_severity
self._trt_logger.min_severity = severity_map[min_severity][0]
self._logger.setLevel(severity_map[min_severity][1])
if self._polygraphy_logger is not None:
self._polygraphy_logger.module_severity = severity_map[
min_severity][2]
severity_map = {
'internal_error': [trt.Logger.INTERNAL_ERROR, logging.CRITICAL],
'error': [trt.Logger.ERROR, logging.ERROR],
'warning': [trt.Logger.WARNING, logging.WARNING],
'info': [trt.Logger.INFO, logging.INFO],
'verbose': [trt.Logger.VERBOSE, logging.DEBUG],
'debug': [trt.Logger.VERBOSE, logging.DEBUG],
}
if G_LOGGER is not None:
g_logger_severity_map = {
'internal_error': G_LOGGER.CRITICAL,
'error': G_LOGGER.ERROR,
'warning': G_LOGGER.WARNING,
'info': G_LOGGER.INFO,
'verbose': G_LOGGER.SUPER_VERBOSE,
'debug': G_LOGGER.SUPER_VERBOSE,
}
for key, value in g_logger_severity_map.items():
severity_map[key].append(value)
logger = Logger()
def set_level(min_severity):
logger.set_level(min_severity)
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