Place histogram bucketing logic on CPU explicitly when using TPUStrategy #2883
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hongjunChoi
changed the title
nfelt
approved these changes
Nov 4, 2019
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Motivation for features / changes
Manually place bucketing logic in writing histogram to CPU when TPUStrategy is used.
Technical description of changes
_buckets()generates a graph with dynamic shapes which are not supported on TPU. As so, place the function in outside compilation cluster when TPUStrategy is in scope.