49 lines
1.3 KiB
Python
49 lines
1.3 KiB
Python
# Copyright 2024 Bytedance Ltd. and/or its affiliates
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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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"""
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Utilities to check if packages are available.
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We assume package availability won't change during runtime.
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"""
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from functools import cache
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from typing import List
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@cache
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def is_megatron_core_available():
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try:
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from megatron.core import parallel_state as mpu
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return True
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except ImportError:
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return False
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@cache
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def is_vllm_available():
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try:
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import vllm
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return True
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except ImportError:
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return False
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def import_external_libs(external_libs=None):
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if external_libs is None:
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return
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if not isinstance(external_libs, List):
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external_libs = [external_libs]
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import importlib
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for external_lib in external_libs:
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importlib.import_module(external_lib)
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