ray-project/ray ray-0.7.2

on GitHub

Core

• Improvements
  • Continue moving the worker code to C++. #5031, #4966, #4922, #4899, #5032, #4996, #4875
  • Add a hash table data structure to the Redis modules. #4911
  • Use gRPC for communication between node managers. #4968, #5023, #5024
• Python
  • @ray.remote now inherits the function docstring. #4985
  • Remove typing module from setup.py install_requirements. #4971
• Java
  • Allow users to set JVM options at actor creation time. #4970
• Internal
  • Refactor IDs: DriverID -> JobID, change all ID functions to camel case. #4964, #4896
  • Improve organization of directory structure. #4898
• Peformance
  • Get task object dependencies in parallel from object store. #4775
  • Flush lineage cache on task submission instead of execution. #4942
  • Remove debug check for uncommitted lineage. #5038

Tune

• Add directional metrics for components. #4120, #4915
• Disallow setting resources_per_trial when it is already configured. #4880
• Make PBT Quantile fraction configurable. #4912

RLlib

• Add QMIX mixer parameters to optimizer param list. #5014
• Allow Torch policies access to full action input dict in extra_action_out_fn. #4894
• Allow access to batches prior to postprocessing. #4871
• Throw error if sample_async is used with pytorch for A3C. #5000
• Patterns & User Experience
  • Rename PolicyEvaluator => RolloutWorker. #4820
  • Port remainder of algorithms to build_trainer() pattern. #4920
  • Port DQN to build_tf_policy() pattern. #4823
• Documentation
  • Add docs on how to use TF eager execution. #4927
  • Add preprocessing example to offline documentation. #4950

Other Libraries

• Add support for distributed training with PyTorch. #4797, #4933
• Autoscaler will kill workers on exception. #4997
• Fix handling of non-integral timeout values in signal.receive. #5002

Thanks

We thank the following contributors for their amazing contributions: @jiangzihao2009, @raulchen, @ericl, @hershg, @kfstorm, @kiddyboots216, @jovany-wang, @pschafhalter, @richardliaw, @robertnishihara, @stephanie-wang, @simon-mo, @zhijunfu, @ls-daniel, @ajgokhale, @rueberger, @suquark, @guoyuhong, @jovany-wang, @pcmoritz, @hartikainen, @timonbimon, @TianhongDai