GitLab

253113801  by A. Unique TensorFlower<gardener@tensorflow.org>:

    Internal change

252697519  by dmchen<dmchen@google.com>:

    BERT SQuAD accuracy test

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252663512  by A. Unique TensorFlower<gardener@tensorflow.org>:

    Internal change

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252647871  by A. Unique TensorFlower<gardener@tensorflow.org>:

    Enable multi worker TPU training for BERT pretraining.

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PiperOrigin-RevId: 253113801