* Fix trivial model to work properly with fp16

* Add comment on manual casting

Previously we had one dense layer in trivial model. The weight was [224*224*3, num_classes].
Using two dense layers, the weights are [224*224*3, 1] and [1, num_classes].

* Do not report metrics in performance benchmarks

* Rename flag

* Modified tweaked tests to use tensor learning rate

* Add first benchmark and return stats.

* Remove print statements update training steps.

* Revert print T: in print statement.

* Remove print(stats)

* add 2 gpu accuracy test for base.

* Fixed total_batch_size when using gpu + gFile deprecations.

* 8 GPU test name fix

* Add 4 and 8 GPU tests.

* typo fixes.

* Clean up test names and methods.

* bleu uncased.  docstring format fix.

* Add learning rate tensor. This makes training slower

* Improve LearningRateSchedule with better efficiency

* Fix lint error

* Replace constant definition with existing one

246873701  by menglong:

    Missing __init__.py under meta_architectures/

--
246857392  by menglong:

    Standardize proto namespace: lstm_object_detection.protos

--
246625127  by menglong:

    Internal changes.

--
246596481  by menglong:

    Add License

--
246580605  by menglong:

    Internal changes

--
246344626  by menglong:

    Open source interleaved mobilenet v2 model.

--
244893883  by menglong:

    Introduce multi_input_decoder for interleaved model.

--
244461016  by menglong:

    Add pre-bottleneck operation to lstm cells to support interleaved model.

--
244052176  by menglong:

    Update README

--
244020495  by menglong:

    Add test to rnn_decoder.

--
243704250  by menglong:

    Duplicate assignment.

--
243091836  by menglong:

    Move LSTMSSD meta arch into separate folder

--
242900337  by menglong:

    Modified mobilenet definition for LSTM-SSD

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242773195  by menglong:

    Release GroupedConvLSTMCell implementation: https://arxiv.org/abs/1903.10172

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242574736  by menglong:

    Introduce module for quantizated training.

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242544306  by menglong:

    lstm_ssd_meta_arch updates, added test
    rename:
    - LSTMMetaArch to LSTMSSDMetaArch
    - LSTMFeatureExtractor to LSTMSSDFeatureExtractor

--
241986236  by menglong:

    Move lstm quantization utils to 3rd party.

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225922488  by yinxiao:

    Training pipeline fixes.

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224839137  by yinxiao:

    Issue fix for lstm object detecion sample config.

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224246947  by menglong:

    Fix logging module import

--

PiperOrigin-RevId: 246873701

* deeplab quantize

* Fix bug in train.py

* Create quantize.md

* Enable CuDNN BatchNorm spatial persistent by default; Remove 2nd zero padding layer

* Apply scale=False and fused=True consistently to BatchNorm layers

* Undo remove padding layer

* Replace zero padding with padding attribute in max pooling for better performance

* Resolve comments

* Revert "Replace zero padding with padding attribute in max pooling for better performance"

This reverts commit ad49db057c800ecac008eec1057005bd2c08ac73.

* updated mujoco api calls to data, and tensorflow call to CriticalSection (moved from contrib.framework)

* changed efficient-hrl envs so self.physics points to correct PyMj object based on mujoco_py version

* corrected mujoco version number checkm in AntEnv.physics and PointEnv.physics properties

* fix AntEnv.set_xy by reverting to using self.physics

This options allows the new tf.train.experimental.enable_mixed_precision_graph_rewrite() function to be used for fp16, instead of manual casts.

* Internal change.

PiperOrigin-RevId: 185564155

* Fix small bug when reading DELF features when file is empty.
A new test is added that catches this bug.

PiperOrigin-RevId: 213839503

* Refactors DELF example code to expose a function to create a DELF feature extractor.

PiperOrigin-RevId: 241492615

* Merged commit includes the following changes:
244073180  by Andre Araujo:

    Internal change

--
243646498  by Andre Araujo:

    Detect and save bounding boxes for a list of images.
    A new proto is added, along with auxiliary read/write functions, and tests.

--

PiperOrigin-RevId: 244073180

* Merged commit includes the following changes:
244872693  by Andre Araujo:

    Small change.

--
244871213  by Andre Araujo:

    Small edit to DELF extractor function.

--
244790715  by Andre Araujo:

    internal automated change

--
244773146  by Andre Araujo:

    Add option to visualize extracted boxes, and change slightly model input.

--
244288992  by Andre Araujo:

    Script to cluster DELF features using K-means.

--
244275164  by Andre Araujo:

    Scripts to extract DELF features and boxes from Revisited Oxford/Paris datasets, used in Detect-to-Retrieve paper.

--

PiperOrigin-RevId: 244872693

* Merged commit includes the following changes:

PiperOrigin-RevId: 244876167

* Updates instructions to include new released models, instructions for DELF and detector extraction, etc.

* Small fix

* Merged commit includes the following changes:
244909336  by Andre Araujo:

    Update to DELF config example to use latest model.

--

PiperOrigin-RevId: 244909336

* Revert "Merged commit includes the following changes:"

This reverts commit f41be9f159330f62846d5d8b3d3d5d55cd1874f4.

* Update delf_config_example model

* Small edits to detection instructions

* Specifying GLB location in README

* Mention D2R code release in progress

Replace per_device with per_replica and PerDevice with PerReplica, because the PerDevice concept was renamed and doesn't exist anymore. (#6693)

* Replace per_device with per_replica and PerDevice with PerReplica, because the PerReplica concept was renamed and doesn't exist anymore.

* Add accuracy check.

* Avoid double flag init, move data_dir to real data.

* Comment on lower accuracy target.

* bug fix

* bug fix

* Add benchmarks with the --cloning flag to Resnet and NFC.

* Renamed cloning to clone_model_in_keras_dist_strat. Dropped a few tests that aren't essential.

* Fixed up the formatting after re-naming the flag to a much longer  name.  Thanks, lint.
* Fixed the lint error in nfc_common.py

* Combined imagenet and cifar-10 benchmarks

* Comments and epochs_between_evals.

* Added tuned tests and cleaned up benchmark flags

* Fix names.

* Return results and add images/sec hook.

* updated doc strings for return values.

* 128 to 256 batch for FP16 test

* added more doc strings to fix lint.

* Merged commit includes the following changes:
244869387  by Sergio Guadarrama:

    This CL adds script/code to generate Visual WakeWords Dataset annotation files and TF records starting from COCO dataset.

--
244866660  by Sergio Guadarrama:

    Add VisualWakeWords Dataset to Slim dataset_factory to train MobileNets on it.

--
244836000  by Sergio Guadarrama:

    n/a

--
244104396  by Sergio Guadarrama:

    Add an option whether to enable / disable image cropping in inception_preprocessing.

--
242040128  by Sergio Guadarrama:

    Internal change

241793677  by Sergio Guadarrama:

    Internal change

241073081  by Sergio Guadarrama:

    Internal change

240131189  by Sergio Guadarrama:

    Internal change

PiperOrigin-RevId: 244869387

* Merged commit includes the following changes:
245431876  by Sergio Guadarrama:

    Internal cleanup

--

PiperOrigin-RevId: 245431876

* Merged commit includes the following changes:
245454983  by Sergio Guadarrama:

    Internal Cleanup

--

PiperOrigin-RevId: 245454983

* Add num_packs flag for MirroredStrategy's cross device ops.

* fix parens

* Fix lint errors and make all_reduce_alg more robust.

* Set default num_packs to 1

tf.test.is_gpu_available() should not be called in flags since this is
called before app.main() and the runtime has not yet been initialized.

* Remove contrib AllReduceCrossDeviceOps and update all_reduce_alg options with MirroredStrategy.

* cleanup

Reason: test failures because contrib is not available in V2

This reverts commit 325dd761.

* Added none check for output_dir

* Change double quote to single

* Internal change.

PiperOrigin-RevId: 185564155

* Fix small bug when reading DELF features when file is empty.
A new test is added that catches this bug.

PiperOrigin-RevId: 213839503

* Refactors DELF example code to expose a function to create a DELF feature extractor.

PiperOrigin-RevId: 241492615

* Merged commit includes the following changes:
244073180  by Andre Araujo:

    Internal change

--
243646498  by Andre Araujo:

    Detect and save bounding boxes for a list of images.
    A new proto is added, along with auxiliary read/write functions, and tests.

--

PiperOrigin-RevId: 244073180

* Merged commit includes the following changes:
244872693  by Andre Araujo:

    Small change.

--
244871213  by Andre Araujo:

    Small edit to DELF extractor function.

--
244790715  by Andre Araujo:

    internal automated change

--
244773146  by Andre Araujo:

    Add option to visualize extracted boxes, and change slightly model input.

--
244288992  by Andre Araujo:

    Script to cluster DELF features using K-means.

--
244275164  by Andre Araujo:

    Scripts to extract DELF features and boxes from Revisited Oxford/Paris datasets, used in Detect-to-Retrieve paper.

--

PiperOrigin-RevId: 244872693

* Merged commit includes the following changes:

PiperOrigin-RevId: 244876167

* Updates instructions to include new released models, instructions for DELF and detector extraction, etc.

* Small fix

* Merged commit includes the following changes:
244909336  by Andre Araujo:

    Update to DELF config example to use latest model.

--

PiperOrigin-RevId: 244909336

* Revert "Merged commit includes the following changes:"

This reverts commit f41be9f159330f62846d5d8b3d3d5d55cd1874f4.

* Update delf_config_example model

* Small edits to detection instructions

* Specifying GLB location in README

* Introduce a short sleep before ds.prefetch in tf.data.

* Further limit dataset threads to reduce CPU contention

* Tuned dataset sleep time

* Rename dataset sleep flag; enable it only for Keras Graph mode

* Update colab demo

* fix typo