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https://github.com/vale981/ray
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48 lines
1.5 KiB
Python
48 lines
1.5 KiB
Python
#!/usr/bin/env python
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import argparse
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from ray.rllib import evaluate, train
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from ray.rllib.utils.deprecation import deprecation_warning
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EXAMPLE_USAGE = """
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Example usage for training:
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rllib train --run DQN --env CartPole-v0
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Example usage for evaluate (aka: "rollout"):
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rllib evaluate /trial_dir/checkpoint_000001/checkpoint-1 --run DQN
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"""
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def cli():
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parser = argparse.ArgumentParser(
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description="Train or evaluate an RLlib Algorithm.",
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formatter_class=argparse.RawDescriptionHelpFormatter,
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epilog=EXAMPLE_USAGE,
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)
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subcommand_group = parser.add_subparsers(
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help="Commands to train or evaluate an RLlib agent.", dest="command"
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)
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# see _SubParsersAction.add_parser in
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# https://github.com/python/cpython/blob/master/Lib/argparse.py
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train_parser = train.create_parser(
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lambda **kwargs: subcommand_group.add_parser("train", **kwargs)
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)
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evaluate_parser = evaluate.create_parser(
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lambda **kwargs: subcommand_group.add_parser("evaluate", **kwargs)
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)
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rollout_parser = evaluate.create_parser(
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lambda **kwargs: subcommand_group.add_parser("rollout", **kwargs)
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)
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options = parser.parse_args()
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if options.command == "train":
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train.run(options, train_parser)
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elif options.command == "evaluate":
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evaluate.run(options, evaluate_parser)
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elif options.command == "rollout":
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deprecation_warning(old="rllib rollout", new="rllib evaluate", error=False)
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evaluate.run(options, rollout_parser)
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else:
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parser.print_help()
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