Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.8/site-packages/tensorflow/python/distribute/summary_op_util.py: 42%

1# Copyright 2017 The TensorFlow Authors. All Rights Reserved. 

2# 

3# Licensed under the Apache License, Version 2.0 (the "License"); 

4# you may not use this file except in compliance with the License. 

5# You may obtain a copy of the License at 

6# 

7# http://www.apache.org/licenses/LICENSE-2.0 

8# 

9# Unless required by applicable law or agreed to in writing, software 

10# distributed under the License is distributed on an "AS IS" BASIS, 

11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 

12# See the License for the specific language governing permissions and 

13# limitations under the License. 

14#============================================================================== 

15"""Contains utility functions used by summary ops in distribution strategy.""" 

16 

17 

18from tensorflow.python.distribute import distribute_lib 

19from tensorflow.python.framework import ops 

20from tensorflow.python.framework import tensor_util 

21 

22 

23def skip_summary(): 

24 """Determines if summary should be skipped. 

25 

26 If using multiple replicas in distributed strategy, skip summaries on all 

27 replicas except the first one (replica_id=0). 

28 

29 Returns: 

30 True if the summary is skipped; False otherwise. 

31 """ 

32 

33 # TODO(priyag): Add a new optional argument that will provide multiple 

34 # alternatives to override default behavior. (e.g. run on last replica, 

35 # compute sum or mean across replicas). 

36 replica_context = distribute_lib.get_replica_context() 

37 if not replica_context: 

38 return False 

39 # TODO(b/118385803): when replica_id of _TPUReplicaContext is properly 

40 # initialized, remember to change here as well. 

41 replica_id = replica_context.replica_id_in_sync_group 

42 if isinstance(replica_id, ops.Tensor): 

43 replica_id = tensor_util.constant_value(replica_id) 

44 return replica_id and replica_id > 0