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Fix BF16 teardown for TPU precision plugin (#10990)
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com> Co-authored-by: Justus Schock <12886177+justusschock@users.noreply.github.com> Co-authored-by: Rohit Gupta <rohitgr1998@gmail.com> Co-authored-by: Kaushik B <45285388+kaushikb11@users.noreply.github.com> Co-authored-by: thomas chaton <thomas@grid.ai>
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# Copyright The PyTorch Lightning team. | ||
# | ||
# 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 os | ||
from unittest.mock import Mock | ||
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from pytorch_lightning.plugins import TPUBf16PrecisionPlugin | ||
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def test_teardown(): | ||
plugin = TPUBf16PrecisionPlugin() | ||
plugin.connect(Mock(), Mock(), Mock()) | ||
assert os.environ.get("XLA_USE_BF16") == "1" | ||
plugin.teardown() | ||
assert "XLA_USE_BF16" not in os.environ |