ray/doc/source/ray-air/doc_code/rl_trainer.py
xwjiang2010 8d5c07b781
[air/train/docs] Add trainer user guide and update trainer docs (#27389)
This PR adds a user guide to AIR for using Ray Train. It provides a high level overview of the trainers and removes redundant sections.

The main file to review is here: doc/source/ray-air/trainer.rst.

Signed-off-by: xwjiang2010 <xwjiang2010@gmail.com>
Signed-off-by: Richard Liaw <rliaw@berkeley.edu>
Signed-off-by: Kai Fricke <kai@anyscale.com>

Co-authored-by: Richard Liaw <rliaw@berkeley.edu>
Co-authored-by: Kai Fricke <kai@anyscale.com>
2022-08-04 13:59:50 +01:00

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476 B
Python

from ray.air.config import RunConfig, ScalingConfig
from ray.train.rl import RLTrainer
trainer = RLTrainer(
run_config=RunConfig(stop={"training_iteration": 5}),
scaling_config=ScalingConfig(num_workers=2, use_gpu=False),
algorithm="PPO",
config={
"env": "CartPole-v0",
"framework": "tf",
"evaluation_num_workers": 1,
"evaluation_interval": 1,
"evaluation_config": {"input": "sampler"},
},
)
result = trainer.fit()