32 lines
1.2 KiB
Python
32 lines
1.2 KiB
Python
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# Copyright The PyTorch Lightning team.
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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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from abc import ABC, abstractmethod
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from typing import Any, Callable
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class _Launcher(ABC):
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r"""
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Abstract base class for all Launchers.
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Launchers are responsible for the creation and instrumentation of new processes so that the
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:class:`~pytorch_lightning.strategies.base.Strategy` can set up communication between all them.
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Subclass this class and override any of the relevant methods to provide a custom implementation depending on
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cluster environment, hardware, strategy, etc.
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"""
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@abstractmethod
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def launch(self, function: Callable, *args: Any, **kwargs: Any) -> Any:
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"""Launches the processes."""
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