41 lines
1.2 KiB
Python
41 lines
1.2 KiB
Python
# 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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import pytest
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from tests_fabric.helpers.runif import RunIf
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from lightning_fabric.accelerators.tpu import TPUAccelerator
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def test_auto_device_count():
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assert TPUAccelerator.auto_device_count() == 8
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@RunIf(tpu=True)
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def test_availability():
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assert TPUAccelerator.is_available()
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@pytest.mark.parametrize(
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"devices,expected",
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[
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(0, []), # TODO(fabric): This should raise an exception
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(1, [0]),
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(2, [0, 1]),
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(3, [0, 1, 2]),
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("anything-else", "anything-else"), # TODO(fabric): This should raise an exception
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],
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)
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def test_get_parallel_devices(devices, expected):
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assert TPUAccelerator.get_parallel_devices(devices) == expected
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