Bump tensorflow from 1.15.0 to 1.15.2 in /examples/cars_workshop

[dependabot]

Bumps tensorflow from 1.15.0 to 1.15.2.

Release notes

Sourced from tensorflow's releases.

TensorFlow 1.15.2

Release 1.15.2

Bug Fixes and Other Changes

• Fixes a security vulnerability where converting a Python string to a tf.float16 value produces a segmentation fault (CVE-2020-5215)
• Updates curl to 7.66.0 to handle CVE-2019-5482 and CVE-2019-5481
• Updates sqlite3 to 3.30.01 to handle CVE-2019-19646, CVE-2019-19645 and CVE-2019-16168

Changelog

Sourced from tensorflow's changelog.

Release 1.15.2

Bug Fixes and Other Changes

• Fixes a security vulnerability where converting a Python string to a tf.float16 value produces a segmentation fault (CVE-2020-5215)
• Updates curl to 7.66.0 to handle CVE-2019-5482 and CVE-2019-5481
• Updates sqlite3 to 3.30.01 to handle CVE-2019-19646, CVE-2019-19645 and CVE-2019-16168

Release 2.1.0

TensorFlow 2.1 will be the last TF release supporting Python 2. Python 2 support officially ends an January 1, 2020. As announced earlier, TensorFlow will also stop supporting Python 2 starting January 1, 2020, and no more releases are expected in 2019.

Major Features and Improvements

• The tensorflow pip package now includes GPU support by default (same as tensorflow-gpu) for both Linux and Windows. This runs on machines with and without NVIDIA GPUs. tensorflow-gpu is still available, and CPU-only packages can be downloaded at tensorflow-cpu for users who are concerned about package size.
• Windows users: Officially-released tensorflow Pip packages are now built with Visual Studio 2019 version 16.4 in order to take advantage of the new /d2ReducedOptimizeHugeFunctions compiler flag. To use these new packages, you must install "Microsoft Visual C++ Redistributable for Visual Studio 2015, 2017 and 2019", available from Microsoft's website here.
  • This does not change the minimum required version for building TensorFlow from source on Windows, but builds enabling EIGEN_STRONG_INLINE can take over 48 hours to compile without this flag. Refer to configure.py for more information about EIGEN_STRONG_INLINE and /d2ReducedOptimizeHugeFunctions.
  • If either of the required DLLs, msvcp140.dll (old) or msvcp140_1.dll (new), are missing on your machine, import tensorflow will print a warning message.
• The tensorflow pip package is built with CUDA 10.1 and cuDNN 7.6.
• tf.keras
  • Experimental support for mixed precision is available on GPUs and Cloud TPUs. See usage guide.
  • Introduced the TextVectorization layer, which takes as input raw strings and takes care of text standardization, tokenization, n-gram generation, and vocabulary indexing. See this end-to-end text classification example.
  • Keras .compile .fit .evaluate and .predict are allowed to be outside of the DistributionStrategy scope, as long as the model was constructed inside of a scope.
  • Experimental support for Keras .compile, .fit, .evaluate, and .predict is available for Cloud TPUs, Cloud TPU, for all types of Keras models (sequential, functional and subclassing models).
  • Automatic outside compilation is now enabled for Cloud TPUs. This allows tf.summary to be used more conveniently with Cloud TPUs.
  • Dynamic batch sizes with DistributionStrategy and Keras are supported on Cloud TPUs.
  • Support for .fit, .evaluate, .predict on TPU using numpy data, in addition to tf.data.Dataset.
  • Keras reference implementations for many popular models are available in the TensorFlow Model Garden.
• tf.data
  • Changes rebatching for tf.data datasets + DistributionStrategy for better performance. Note that the dataset also behaves slightly differently, in that the rebatched dataset cardinality will always be a multiple of the number of replicas.
  • tf.data.Dataset now supports automatic data distribution and sharding in distributed environments, including on TPU pods.
  • Distribution policies for tf.data.Dataset can now be tuned with 1. tf.data.experimental.AutoShardPolicy(OFF, AUTO, FILE, DATA) 2. tf.data.experimental.ExternalStatePolicy(WARN, IGNORE, FAIL)
• tf.debugging
  • Add tf.debugging.enable_check_numerics() and tf.debugging.disable_check_numerics() to help debugging the root causes of issues involving infinities and NaNs.
• tf.distribute
  • Custom training loop support on TPUs and TPU pods is avaiable through strategy.experimental_distribute_dataset, strategy.experimental_distribute_datasets_from_function, strategy.experimental_run_v2, strategy.reduce.
  • Support for a global distribution strategy through tf.distribute.experimental_set_strategy(), in addition to strategy.scope().
• TensorRT
  • TensorRT 6.0 is now supported and enabled by default. This adds support for more TensorFlow ops including Conv3D, Conv3DBackpropInputV2, AvgPool3D, MaxPool3D, ResizeBilinear, and ResizeNearestNeighbor. In addition, the TensorFlow-TensorRT python conversion API is exported as tf.experimental.tensorrt.Converter.
• Environment variable TF_DETERMINISTIC_OPS has been added. When set to "true" or "1", this environment variable makes tf.nn.bias_add operate deterministically (i.e. reproducibly), but currently only when XLA JIT compilation is not enabled. Setting TF_DETERMINISTIC_OPS to "true" or "1" also makes cuDNN convolution and max-pooling operate deterministically. This makes Keras Conv*D and MaxPool*D layers operate deterministically in both the forward and backward directions when running on a CUDA-enabled GPU.

Breaking Changes

• Deletes Operation.traceback_with_start_lines for which we know of no usages.
• Removed id from tf.Tensor.__repr__() as id is not useful other than internal debugging.
• Some tf.assert_* methods now raise assertions at operation creation time if the input tensors' values are known at that time, not during the session.run(). This only changes behavior when the graph execution would have resulted in an error. When this happens, a noop is returned and the input tensors are marked non-feedable. In other words, if they are used as keys in feed_dict argument to session.run(), an error will be raised. Also, because some assert ops don't make it into the graph, the graph structure changes. A different graph can result in different per-op random seeds when they are not given explicitly (most often).
• The following APIs are not longer experimental: tf.config.list_logical_devices, tf.config.list_physical_devices, tf.config.get_visible_devices, tf.config.set_visible_devices, tf.config.get_logical_device_configuration, tf.config.set_logical_device_configuration.
• tf.config.experimentalVirtualDeviceConfiguration has been renamed to tf.config.LogicalDeviceConfiguration.
• tf.config.experimental_list_devices has been removed, please use
  tf.config.list_logical_devices.

Bug Fixes and Other Changes

... (truncated)

Commits

• 5d80e1e Merge pull request #36215 from tensorflow-jenkins/version-numbers-1.15.2-8214
• 71e9d8f Update version numbers to 1.15.2
• e50120e Merge pull request #36214 from tensorflow-jenkins/relnotes-1.15.2-2203
• 1a7e9fb Releasing 1.15.2 instead of 1.15.1
• 85f7aab Insert release notes place-fill
• e75a6d6 Merge pull request #36190 from tensorflow/mm-r1.15-fix-v2-build
• a6d8973 Use config=v1 as this is r1.15 branch.
• fdb8589 Merge pull request #35912 from tensorflow-jenkins/relnotes-1.15.1-31298
• a6051e8 Add CVE number for main patch
• 360b2e3 Merge pull request #34532 from ROCmSoftwarePlatform/r1.15-rccl-upstream-patch
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot ignore this [patch|minor|major] version will close this PR and stop Dependabot creating any more for this minor/major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
• @dependabot use these labels will set the current labels as the default for future PRs for this repo and language
• @dependabot use these reviewers will set the current reviewers as the default for future PRs for this repo and language
• @dependabot use these assignees will set the current assignees as the default for future PRs for this repo and language
• @dependabot use this milestone will set the current milestone as the default for future PRs for this repo and language

You can disable automated security fix PRs for this repo from the Security Alerts page.

[tomerarnon]

Tests seem to be failing due to an unrelated issue that should be addressed in #89. Assuming they pass after that goes through, any objections to merging this depedabot pull request @clazarus?

[tomerarnon]

@dependabot rebase

[dependabot]

Looks like this PR has been edited by someone other than Dependabot. That means Dependabot can't rebase it - sorry!

If you're happy for Dependabot to recreate it from scratch, overwriting any edits, you can request @dependabot recreate.

[tomerarnon]

@dependabot recreate

[tomerarnon]

@dependabot recreate

[tomerarnon]

@dependabot recreate