ray-project/ray ray-0.5.3

on GitHub

API

• Add ray.is_initialized() to check if ray.init() has been called. #2818

Fixes and Improvements

• Fix issue in which ray stop fails to kill plasma object store. #2850
• Remove dependence on psutil. #2892

RLlib

• Set better default for VF clip PPO parameter to avoid silent performance degradation. #2921
• Reward clipping should default to off for non-Atari environments. #2904
• Fix LSTM failing to train on truncated sequences. #2898

Tune

• Fixed a small bug in trial pausing and cleaned up error messages. #2815