wehub-resource-sync
47 lines
1.5 KiB
Python
47 lines
1.5 KiB
Python
# Copyright 2025 The TensorFlow Authors. All Rights Reserved.
|
|
#
|
|
# 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.
|
|
# ==============================================================================
|
|
"""Helper functions for TPU Embedding Contexts."""
|
|
|
|
import threading
|
|
from absl import logging
|
|
|
|
|
|
class _EmbeddingPipeliningState(threading.local):
|
|
|
|
def __init__(self):
|
|
super().__init__()
|
|
self.enabled = True
|
|
|
|
embedding_pipelining_state = _EmbeddingPipeliningState()
|
|
|
|
|
|
class SequentialEmbeddingContext:
|
|
"""Disables embedding pipelining for all ops created in the scope."""
|
|
|
|
def __init__(self):
|
|
self._original_embedding_pipelining_state_enabled = (
|
|
embedding_pipelining_state.enabled
|
|
)
|
|
|
|
def __enter__(self):
|
|
embedding_pipelining_state.enabled = False
|
|
logging.info("Entering SequentialEmbeddingContext.")
|
|
|
|
def __exit__(self, exc_type, exc_val, exc_tb):
|
|
embedding_pipelining_state.enabled = (
|
|
self._original_embedding_pipelining_state_enabled
|
|
)
|
|
logging.info("Exiting SequentialEmbeddingContext.")
|