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18 lines
945 B
ReStructuredText
18 lines
945 B
ReStructuredText
.. _rolloutworker-reference-docs:
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RolloutWorker
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=============
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RolloutWorkers are used as ``@ray.remote`` actors to collect and return samples
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from environments or offline files in parallel. An RLlib :py:class:`~ray.rllib.agents.trainer.Trainer` usually has
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``num_workers`` :py:class:`~ray.rllib.evaluation.rollout_worker.RolloutWorker`s plus a
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single "local" :py:class:`~ray.rllib.evaluation.rollout_worker.RolloutWorker` (not ``@ray.remote``) in
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its :py:class:`~ray.rllib.evaluation.worker_set.WorkerSet` under ``self.workers``.
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Depending on its evaluation config settings, an additional :py:class:`~ray.rllib.evaluation.worker_set.WorkerSet` with
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:py:class:`~ray.rllib.evaluation.rollout_worker.RolloutWorker`s for evaluation may be present in the :py:class:`~ray.rllib.agents.trainer.Trainer`
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under ``self.evaluation_workers``.
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.. autoclass:: ray.rllib.evaluation.rollout_worker.RolloutWorker
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:special-members: __init__
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:members:
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