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Commits on Jul 18, 2018

• Add support for MirroredVariables in init_from_checkpoint and warm_start in estimator.

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Commits on Jul 17, 2018

• Update distribution strategy readme to reflect metrics support during training.

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Commits on Jul 3, 2018

• Add a new argument `return_same_shape` to `while_loop`. When set, the structure of the return value will be exactly the same as that of the loop_vars.

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Commits on Jun 29, 2018

• Add an output context that can be used to specify outputs to capture when running multiple steps at a time using the `run_steps_on_dataset` API. It allows the user's step function to specify which …

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Commits on Jun 28, 2018

• Add an output context that can be used to specify outputs to capture when running multiple steps at a time using the `run_steps_on_dataset` API. It allows the user's step function to specify which …

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Commits on Jun 25, 2018

• Guard ops modification and Session.run with a group lock. This lock allows multiple ops modifications to happen at the same time, but no Session.run can happen until the modifications are done. And…

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Commits on Jun 22, 2018

• Add a lock that allows many members of a group to access a resource exclusively. This will be used to allow multiple threads to construct the graph at the same time, while preventing other threads …

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Commits on Jun 21, 2018

• Update mnist eager example with mirrored strategy as some of the methods it was using are now deprecated.

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Commits on Jun 20, 2018

• Implement new API for TPUStrategy to run multiple steps, and move most of the TPU specific logic into this method from `call_for_each_tower`.

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Commits on Jun 19, 2018

• Create hyper parameter tensors in optimizer v2 outside any control flow contexts.

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Commits on Jun 7, 2018

• Expand DistributionStrategy.group to address single variable case properly as well, in addition to a single Tensor case.

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Commits on May 24, 2018

• Avoid infinite recursion when checking for indexed slices.

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• Aggregating IndexedSlices: Do not require first element to be IndexedSlices.

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Commits on May 23, 2018

• Add support for IndexedSlices in Distribution Strategy all reduce. Issue reported in #19069

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Commits on May 16, 2018

• Enable gpu tests for cross_tower_ops_test

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Commits on May 15, 2018

• Handle delayed variable initialization in MirroredStrategy. Test with RNN layer.

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Commits on May 2, 2018

• Add prefetching to one device distribution strategy.

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• Use experimental auto_sharding in multi worker dataset.

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Commits on May 1, 2018

• Add utility to auto shard a dataset pipeline in the appropriate place by locating the file readers and sharding their input files.

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Commits on Apr 18, 2018

• Add support for initializable iterator in distribution strategies. Use that in estimator.

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Commits on Apr 12, 2018

• Separate out distribute dependency out of training, as it needs to be used in summary utils (which training depends on, thus causing circular dependency).

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Commits on Apr 6, 2018

• Pull changes from prefetching_ops to support dicts in prefetching_ops_v2 in distribute, and update estimator test to use prefetching.

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Commits on Apr 5, 2018

• Save the original from_proto method before calling it to avoid infinite loop.

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Commits on Apr 4, 2018

• Address bug in distributed strategies `Monitor` to allow running for >1 step.

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• Iterate over a copy of dictionary keys when closing variable subscopes. Otherwise, we run into a "dictionary changed size during iteration" once in a while, as we are modifying the values in the di…

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• Rename `distribute` to `train_distribute` parameter in `RunConfig` to clarify that its purpose is only for training.

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Commits on Mar 30, 2018

• Add summaries from only the first tower in distributed strategy.

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• Add basic serialization support to DistributedVariable (by using the underlying primary variable's serialization). Also, throw an exception when trying to de-serialize as we haven't implemented tha…

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Commits on Mar 29, 2018

• Minor language change in readme.

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• Internal Change

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Commits on Mar 25, 2018

• Build and import rules for distributed strategy

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Commits on Mar 21, 2018

• Make graph's name scope thread local so that two threads opening the same scope don't get nested under each other.

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• Make variable scope and scope counts local to current thread so that they work correctly in multi-threaded environments.

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Commits on Mar 5, 2018

• Make variable creator scope thread local (always).

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Commits on Mar 4, 2018

• Fix nested bullets in docs. (Need 4 spaces indent)

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