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Document explicitly iterations_per_loop is not respected in TPUEstimator evaluation.

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PiperOrigin-RevId: 239215958
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Ruoxin Sang 2019-03-19 10:14:57 -07:00 committed by TensorFlower Gardener
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tensorflow/python/tpu/tpu_config.py
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@ -62,6 +62,8 @@ class TPUConfig(
system before returning to CPU host for each `Session.run`. This means
global step is increased `iterations_per_loop` times in one `Session.run`.
It is recommended to be set as number of global steps for next checkpoint.
Note that in evaluation don't use this value, instead we run total eval
`steps` on TPU for a single `Session.run`.
num_shards: (Deprecated, ignored by TPUEstimator).
The number of model replicas in the system. For non-model-parallelism
case, this number equals the total number of TPU cores. For