garage.sampler.worker

Worker interface used in all Samplers.

class Worker(*, seed, max_episode_length, worker_number)

Bases: abc.ABC

Inheritance diagram of garage.sampler.worker.Worker

Worker class used in all Samplers.

update_agent(self, agent_update)

Update the worker’s agent, using agent_update.

Parameters:agent_update (object) – An agent update. The exact type of this argument depends on the Worker implementation.
update_env(self, env_update)

Update the worker’s env, using env_update.

Parameters:env_update (object) – An environment update. The exact type of this argument depends on the Worker implementation.
rollout(self)

Sample a single episode of the agent in the environment.

Returns:
Batch of sampled episodes. May be truncated if
max_episode_length is set.
Return type:EpisodeBatch
start_episode(self)

Begin a new episode.

step_episode(self)

Take a single time-step in the current episode.

Returns:True iff the episode is done, either due to the environment indicating termination of due to reaching max_episode_length.
collect_episode(self)

Collect the current episode, clearing the internal buffer.

Returns:
Batch of sampled episodes. May be truncated if the
episodes haven’t completed yet.
Return type:EpisodeBatch
shutdown(self)

Shutdown the worker.