__init__.py 2.8 KB
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#   Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserve.
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#
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# 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
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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
# 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.

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from __future__ import print_function
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# import all class inside framework into fluid module
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import framework
from framework import *
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# import all class inside executor into fluid module
import executor
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from executor import *

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import io
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import evaluator
import initializer
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import layers
import nets
import optimizer
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import learning_rate_decay
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import backward
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import regularizer
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from param_attr import ParamAttr, WeightNormParamAttr
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from data_feeder import DataFeeder
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from core import LoDTensor, CPUPlace, CUDAPlace
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from distribute_transpiler import DistributeTranspiler
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from distribute_transpiler_simple import SimpleDistributeTranspiler
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import clip
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from memory_optimization_transpiler import memory_optimize
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import profiler
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Tensor = LoDTensor
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__all__ = framework.__all__ + executor.__all__ + [
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    'io', 'initializer', 'layers', 'nets', 'optimizer', 'learning_rate_decay',
    'backward', 'regularizer', 'LoDTensor', 'CPUPlace', 'CUDAPlace', 'Tensor',
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    'ParamAttr', 'WeightNormParamAttr', 'DataFeeder', 'clip',
    'SimpleDistributeTranspiler', 'DistributeTranspiler', 'memory_optimize',
    'profiler'
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]


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def __bootstrap__():
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    """
    Enable reading gflags from environment variables.
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    Returns:
        None
    """
    import sys
    import core
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    import os

    try:
        num_threads = int(os.getenv('OMP_NUM_THREADS', '1'))
    except ValueError:
        num_threads = 1

    if num_threads > 1:
        print(
            'WARNING: OMP_NUM_THREADS set to {0}, not 1. The computation '
            'speed will not be optimized if you use data parallel. It will '
            'fail if this PaddlePaddle binary is compiled with OpenBlas since'
            ' OpenBlas does not support multi-threads.'.format(num_threads),
            file=sys.stderr)
        print('PLEASE USE OMP_NUM_THREADS WISELY.', file=sys.stderr)

    os.environ['OMP_NUM_THREADS'] = str(num_threads)

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    read_env_flags = [
        'use_pinned_memory', 'check_nan_inf', 'benchmark', 'warpctc_dir'
    ]
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    if core.is_compiled_with_cuda():
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        read_env_flags += ['fraction_of_gpu_memory_to_use']
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    core.init_gflags([sys.argv[0]] +
                     ["--tryfromenv=" + ",".join(read_env_flags)])
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    core.init_glog(sys.argv[0])
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    core.init_devices()
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layers.monkey_patch_variable()
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__bootstrap__()