36 lines
1.2 KiB
Python
36 lines
1.2 KiB
Python
# Copyright 2020 The TensorFlow Authors. All Rights Reserved.
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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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"""Helper functions for TPU device names."""
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from __future__ import absolute_import
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from __future__ import division
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from __future__ import print_function
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from typing import Text
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from tensorflow.python.util.tf_export import tf_export
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@tf_export(v1=["tpu.core"])
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def core(num: int) -> Text:
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"""Returns the device name for a core in a replicated TPU computation.
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Args:
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num: the virtual core number within each replica to which operators should
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be assigned.
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Returns:
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A device name, suitable for passing to `tf.device()`.
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"""
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return "device:TPU_REPLICATED_CORE:{}".format(num)
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