Ejemplo n.º 1
0
def test_process_trajectory(dummy_config):
    brain_params_team0 = BrainParameters(
        brain_name="test_brain?team=0",
        vector_observation_space_size=1,
        camera_resolutions=[],
        vector_action_space_size=[2],
        vector_action_descriptions=[],
        vector_action_space_type=0,
    )

    brain_name = BehaviorIdentifiers.from_name_behavior_id(
        brain_params_team0.brain_name).brain_name

    brain_params_team1 = BrainParameters(
        brain_name="test_brain?team=1",
        vector_observation_space_size=1,
        camera_resolutions=[],
        vector_action_space_size=[2],
        vector_action_descriptions=[],
        vector_action_space_type=0,
    )
    dummy_config["summary_path"] = "./summaries/test_trainer_summary"
    dummy_config["model_path"] = "./models/test_trainer_models/TestModel"
    ppo_trainer = PPOTrainer(brain_name, 0, dummy_config, True, False, 0, "0",
                             False)
    trainer = GhostTrainer(ppo_trainer, brain_name, 0, dummy_config, True, "0")

    # first policy encountered becomes policy trained by wrapped PPO
    policy = trainer.create_policy(brain_params_team0)
    trainer.add_policy(brain_params_team0.brain_name, policy)
    trajectory_queue0 = AgentManagerQueue(brain_params_team0.brain_name)
    trainer.subscribe_trajectory_queue(trajectory_queue0)

    # Ghost trainer should ignore this queue because off policy
    policy = trainer.create_policy(brain_params_team1)
    trainer.add_policy(brain_params_team1.brain_name, policy)
    trajectory_queue1 = AgentManagerQueue(brain_params_team1.brain_name)
    trainer.subscribe_trajectory_queue(trajectory_queue1)

    time_horizon = 15
    trajectory = make_fake_trajectory(
        length=time_horizon,
        max_step_complete=True,
        vec_obs_size=1,
        num_vis_obs=0,
        action_space=[2],
    )
    trajectory_queue0.put(trajectory)
    trainer.advance()

    # Check that trainer put trajectory in update buffer
    assert trainer.trainer.update_buffer.num_experiences == 15

    trajectory_queue1.put(trajectory)
    trainer.advance()

    # Check that ghost trainer ignored off policy queue
    assert trainer.trainer.update_buffer.num_experiences == 15
    # Check that it emptied the queue
    assert trajectory_queue1.empty()
def test_advance(mocked_clear_update_buffer):
    trainer = create_rl_trainer()
    trajectory_queue = AgentManagerQueue("testbrain")
    trainer.subscribe_trajectory_queue(trajectory_queue)
    time_horizon = 15
    trajectory = mb.make_fake_trajectory(
        length=time_horizon,
        max_step_complete=True,
        vec_obs_size=1,
        num_vis_obs=0,
        action_space=[2],
    )
    trajectory_queue.put(trajectory)

    trainer.advance()
    # Check that get_step is correct
    assert trainer.get_step == time_horizon
    # Check that we can turn off the trainer and that the buffer is cleared
    for _ in range(0, 10):
        trajectory_queue.put(trajectory)
        trainer.advance()

    # Check that the buffer has been cleared
    assert not trainer.should_still_train
    assert mocked_clear_update_buffer.call_count > 0
Ejemplo n.º 3
0
def test_agent_manager_queue():
    queue = AgentManagerQueue(behavior_id="testbehavior")
    trajectory = mock.Mock(spec=Trajectory)
    assert queue.empty()
    queue.put(trajectory)
    assert not queue.empty()
    queue_traj = queue.get_nowait()
    assert isinstance(queue_traj, Trajectory)
    assert queue.empty()
Ejemplo n.º 4
0
def test_process_trajectory(dummy_config):
    brain_params = BrainParameters(
        brain_name="test_brain",
        vector_observation_space_size=1,
        camera_resolutions=[],
        vector_action_space_size=[2],
        vector_action_descriptions=[],
        vector_action_space_type=0,
    )
    dummy_config["summary_path"] = "./summaries/test_trainer_summary"
    dummy_config["model_path"] = "./models/test_trainer_models/TestModel"
    trainer = PPOTrainer(brain_params, 0, dummy_config, True, False, 0, "0")
    policy = trainer.create_policy(brain_params)
    trainer.add_policy(brain_params.brain_name, policy)
    trajectory_queue = AgentManagerQueue("testbrain")
    trainer.subscribe_trajectory_queue(trajectory_queue)
    time_horizon = 15
    trajectory = make_fake_trajectory(
        length=time_horizon,
        max_step_complete=True,
        vec_obs_size=1,
        num_vis_obs=0,
        action_space=[2],
    )
    trajectory_queue.put(trajectory)
    trainer.advance()

    # Check that trainer put trajectory in update buffer
    assert trainer.update_buffer.num_experiences == 15

    # Check that GAE worked
    assert (
        "advantages" in trainer.update_buffer
        and "discounted_returns" in trainer.update_buffer
    )

    # Check that the stats are being collected as episode isn't complete
    for reward in trainer.collected_rewards.values():
        for agent in reward.values():
            assert agent > 0

    # Add a terminal trajectory
    trajectory = make_fake_trajectory(
        length=time_horizon + 1,
        max_step_complete=False,
        vec_obs_size=1,
        num_vis_obs=0,
        action_space=[2],
    )
    trajectory_queue.put(trajectory)
    trainer.advance()

    # Check that the stats are reset as episode is finished
    for reward in trainer.collected_rewards.values():
        for agent in reward.values():
            assert agent == 0
    assert trainer.stats_reporter.get_stats_summaries("Policy/Extrinsic Reward").num > 0
Ejemplo n.º 5
0
def test_summary_checkpoint(mock_add_checkpoint, mock_write_summary):
    trainer = create_rl_trainer()
    mock_policy = mock.Mock()
    trainer.add_policy("TestBrain", mock_policy)
    trajectory_queue = AgentManagerQueue("testbrain")
    policy_queue = AgentManagerQueue("testbrain")
    trainer.subscribe_trajectory_queue(trajectory_queue)
    trainer.publish_policy_queue(policy_queue)
    time_horizon = 10
    summary_freq = trainer.trainer_settings.summary_freq
    checkpoint_interval = trainer.trainer_settings.checkpoint_interval
    trajectory = mb.make_fake_trajectory(
        length=time_horizon,
        observation_specs=create_observation_specs_with_shapes([(1, )]),
        max_step_complete=True,
        action_spec=ActionSpec.create_discrete((2, )),
    )
    # Check that we can turn off the trainer and that the buffer is cleared
    num_trajectories = 5
    for _ in range(0, num_trajectories):
        trajectory_queue.put(trajectory)
        trainer.advance()
        # Check that there is stuff in the policy queue
        policy_queue.get_nowait()

    # Check that we have called write_summary the appropriate number of times
    calls = [
        mock.call(step) for step in range(summary_freq, num_trajectories *
                                          time_horizon, summary_freq)
    ]
    mock_write_summary.assert_has_calls(calls, any_order=True)

    checkpoint_range = range(checkpoint_interval,
                             num_trajectories * time_horizon,
                             checkpoint_interval)
    calls = [mock.call(trainer.brain_name, step) for step in checkpoint_range]

    trainer.model_saver.save_checkpoint.assert_has_calls(calls, any_order=True)
    export_ext = "onnx"

    add_checkpoint_calls = [
        mock.call(
            trainer.brain_name,
            ModelCheckpoint(
                step,
                f"{trainer.model_saver.model_path}{os.path.sep}{trainer.brain_name}-{step}.{export_ext}",
                None,
                mock.ANY,
                [
                    f"{trainer.model_saver.model_path}{os.path.sep}{trainer.brain_name}-{step}.pt"
                ],
            ),
            trainer.trainer_settings.keep_checkpoints,
        ) for step in checkpoint_range
    ]
    mock_add_checkpoint.assert_has_calls(add_checkpoint_calls)
Ejemplo n.º 6
0
def test_summary_checkpoint(mock_add_checkpoint, mock_write_summary):
    trainer = create_rl_trainer()
    mock_policy = mock.Mock()
    mock_policy.model_path = "mock_model_path"
    trainer.add_policy("TestBrain", mock_policy)
    trajectory_queue = AgentManagerQueue("testbrain")
    policy_queue = AgentManagerQueue("testbrain")
    trainer.subscribe_trajectory_queue(trajectory_queue)
    trainer.publish_policy_queue(policy_queue)
    time_horizon = 10
    summary_freq = trainer.trainer_settings.summary_freq
    checkpoint_interval = trainer.trainer_settings.checkpoint_interval
    trajectory = mb.make_fake_trajectory(
        length=time_horizon,
        observation_shapes=[(1, )],
        max_step_complete=True,
        action_space=[2],
    )
    # Check that we can turn off the trainer and that the buffer is cleared
    num_trajectories = 5
    for _ in range(0, num_trajectories):
        trajectory_queue.put(trajectory)
        trainer.advance()
        # Check that there is stuff in the policy queue
        policy_queue.get_nowait()

    # Check that we have called write_summary the appropriate number of times
    calls = [
        mock.call(step) for step in range(summary_freq, num_trajectories *
                                          time_horizon, summary_freq)
    ]
    mock_write_summary.assert_has_calls(calls, any_order=True)

    checkpoint_range = range(checkpoint_interval,
                             num_trajectories * time_horizon,
                             checkpoint_interval)
    calls = [
        mock.call(f"{mock_policy.model_path}/{trainer.brain_name}-{step}",
                  mock.ANY) for step in checkpoint_range
    ]
    mock_policy.checkpoint.assert_has_calls(calls, any_order=True)

    add_checkpoint_calls = [
        mock.call(
            trainer.brain_name,
            NNCheckpoint(
                step,
                f"{mock_policy.model_path}/{trainer.brain_name}-{step}.nn",
                None,
                mock.ANY,
            ),
            trainer.trainer_settings.keep_checkpoints,
        ) for step in checkpoint_range
    ]
    mock_add_checkpoint.assert_has_calls(add_checkpoint_calls)
Ejemplo n.º 7
0
def test_process_trajectory(dummy_config):
    behavior_spec = mb.setup_test_behavior_specs(
        True,
        False,
        vector_action_space=DISCRETE_ACTION_SPACE,
        vector_obs_space=VECTOR_OBS_SPACE,
    )
    mock_brain_name = "MockBrain"
    behavior_id = BehaviorIdentifiers.from_name_behavior_id(mock_brain_name)
    trainer = PPOTrainer("test_brain", 0, dummy_config, True, False, 0, "0")
    policy = trainer.create_policy(behavior_id, behavior_spec)
    trainer.add_policy(behavior_id, policy)
    trajectory_queue = AgentManagerQueue("testbrain")
    trainer.subscribe_trajectory_queue(trajectory_queue)
    time_horizon = 15
    trajectory = make_fake_trajectory(
        length=time_horizon,
        observation_shapes=behavior_spec.observation_shapes,
        max_step_complete=True,
        action_space=[2],
    )
    trajectory_queue.put(trajectory)
    trainer.advance()

    # Check that trainer put trajectory in update buffer
    assert trainer.update_buffer.num_experiences == 15

    # Check that GAE worked
    assert (
        "advantages" in trainer.update_buffer
        and "discounted_returns" in trainer.update_buffer
    )

    # Check that the stats are being collected as episode isn't complete
    for reward in trainer.collected_rewards.values():
        for agent in reward.values():
            assert agent > 0

    # Add a terminal trajectory
    trajectory = make_fake_trajectory(
        length=time_horizon + 1,
        max_step_complete=False,
        observation_shapes=behavior_spec.observation_shapes,
        action_space=[2],
    )
    trajectory_queue.put(trajectory)
    trainer.advance()

    # Check that the stats are reset as episode is finished
    for reward in trainer.collected_rewards.values():
        for agent in reward.values():
            assert agent == 0
    assert trainer.stats_reporter.get_stats_summaries("Policy/Extrinsic Reward").num > 0
Ejemplo n.º 8
0
def test_process_trajectory(dummy_config):
    mock_specs = mb.setup_test_behavior_specs(True,
                                              False,
                                              vector_action_space=[2],
                                              vector_obs_space=1)
    behavior_id_team0 = "test_brain?team=0"
    behavior_id_team1 = "test_brain?team=1"
    brain_name = BehaviorIdentifiers.from_name_behavior_id(
        behavior_id_team0).brain_name

    ppo_trainer = PPOTrainer(brain_name, 0, dummy_config, True, False, 0, "0")
    controller = GhostController(100)
    trainer = GhostTrainer(ppo_trainer, brain_name, controller, 0,
                           dummy_config, True, "0")

    # first policy encountered becomes policy trained by wrapped PPO
    parsed_behavior_id0 = BehaviorIdentifiers.from_name_behavior_id(
        behavior_id_team0)
    policy = trainer.create_policy(parsed_behavior_id0, mock_specs)
    trainer.add_policy(parsed_behavior_id0, policy)
    trajectory_queue0 = AgentManagerQueue(behavior_id_team0)
    trainer.subscribe_trajectory_queue(trajectory_queue0)

    # Ghost trainer should ignore this queue because off policy
    parsed_behavior_id1 = BehaviorIdentifiers.from_name_behavior_id(
        behavior_id_team1)
    policy = trainer.create_policy(parsed_behavior_id1, mock_specs)
    trainer.add_policy(parsed_behavior_id1, policy)
    trajectory_queue1 = AgentManagerQueue(behavior_id_team1)
    trainer.subscribe_trajectory_queue(trajectory_queue1)

    time_horizon = 15
    trajectory = make_fake_trajectory(
        length=time_horizon,
        max_step_complete=True,
        observation_shapes=[(1, )],
        action_space=[2],
    )
    trajectory_queue0.put(trajectory)
    trainer.advance()

    # Check that trainer put trajectory in update buffer
    assert trainer.trainer.update_buffer.num_experiences == 15

    trajectory_queue1.put(trajectory)
    trainer.advance()

    # Check that ghost trainer ignored off policy queue
    assert trainer.trainer.update_buffer.num_experiences == 15
    # Check that it emptied the queue
    assert trajectory_queue1.empty()
Ejemplo n.º 9
0
def test_process_trajectory(dummy_config):
    brain_params = make_brain_parameters(discrete_action=False,
                                         visual_inputs=0,
                                         vec_obs_size=6)
    dummy_config["summary_path"] = "./summaries/test_trainer_summary"
    dummy_config["model_path"] = "./models/test_trainer_models/TestModel"
    trainer = SACTrainer(brain_params, 0, dummy_config, True, False, 0, "0")
    policy = trainer.create_policy(brain_params.brain_name, brain_params)
    trainer.add_policy(brain_params.brain_name, policy)

    trajectory_queue = AgentManagerQueue("testbrain")
    trainer.subscribe_trajectory_queue(trajectory_queue)

    trajectory = make_fake_trajectory(
        length=15,
        max_step_complete=True,
        vec_obs_size=6,
        num_vis_obs=0,
        action_space=[2],
    )
    trajectory_queue.put(trajectory)
    trainer.advance()

    # Check that trainer put trajectory in update buffer
    assert trainer.update_buffer.num_experiences == 15

    # Check that the stats are being collected as episode isn't complete
    for reward in trainer.collected_rewards.values():
        for agent in reward.values():
            assert agent > 0

    # Add a terminal trajectory
    trajectory = make_fake_trajectory(
        length=15,
        max_step_complete=False,
        vec_obs_size=6,
        num_vis_obs=0,
        action_space=[2],
    )
    trajectory_queue.put(trajectory)
    trainer.advance()

    # Check that the stats are reset as episode is finished
    for reward in trainer.collected_rewards.values():
        for agent in reward.values():
            assert agent == 0
    assert trainer.stats_reporter.get_stats_summaries(
        "Policy/Extrinsic Reward").num > 0
    # Assert we're not just using the default values
    assert (trainer.stats_reporter.get_stats_summaries(
        "Policy/Extrinsic Reward").mean > 0)
Ejemplo n.º 10
0
def test_sac_trainer_update_normalization(sac_config):
    behavior_id_team0 = "test_brain?team=0"
    brain_name = BehaviorIdentifiers.from_name_behavior_id(
        behavior_id_team0).brain_name
    mock_specs = mb.setup_test_behavior_specs(True,
                                              False,
                                              vector_action_space=[2],
                                              vector_obs_space=1)
    base_config = sac_config.behaviors
    output_path = "results_dir"
    train_model = True
    load_model = False
    seed = 42
    trainer_factory = TrainerFactory(
        trainer_config=base_config,
        output_path=output_path,
        train_model=train_model,
        load_model=load_model,
        seed=seed,
        param_manager=EnvironmentParameterManager(),
    )
    sac_trainer = trainer_factory.generate(brain_name)
    parsed_behavior_id0 = BehaviorIdentifiers.from_name_behavior_id(
        behavior_id_team0)
    policy = sac_trainer.create_policy(parsed_behavior_id0, mock_specs)
    sac_trainer.add_policy(parsed_behavior_id0, policy)
    trajectory_queue0 = AgentManagerQueue(behavior_id_team0)
    sac_trainer.subscribe_trajectory_queue(trajectory_queue0)
    time_horizon = 15
    trajectory = make_fake_trajectory(
        length=time_horizon,
        max_step_complete=True,
        observation_specs=create_observation_specs_with_shapes([(1, )]),
        action_spec=mock_specs.action_spec,
    )
    trajectory_queue0.put(trajectory)
    # mocking out update_normalization in both the policy and critic
    with patch(
            "mlagents.trainers.torch.networks.ValueNetwork.update_normalization"
    ) as optimizer_update_normalization_mock, patch(
            "mlagents.trainers.policy.torch_policy.TorchPolicy.update_normalization"
    ) as policy_update_normalization_mock:
        sac_trainer.advance()
        optimizer_update_normalization_mock.assert_called_once()
        policy_update_normalization_mock.assert_called_once()
Ejemplo n.º 11
0
def test_poca_end_episode():
    name_behavior_id = "test_trainer"
    trainer = POCATrainer(
        name_behavior_id,
        10,
        TrainerSettings(max_steps=100, checkpoint_interval=10,
                        summary_freq=20),
        True,
        False,
        0,
        "mock_model_path",
    )
    behavior_spec = BehaviorSpec(create_observation_specs_with_shapes([(1, )]),
                                 ActionSpec.create_discrete((2, )))
    parsed_behavior_id = BehaviorIdentifiers.from_name_behavior_id(
        name_behavior_id)
    mock_policy = trainer.create_policy(parsed_behavior_id, behavior_spec)
    trainer.add_policy(parsed_behavior_id, mock_policy)
    trajectory_queue = AgentManagerQueue("testbrain")
    policy_queue = AgentManagerQueue("testbrain")
    trainer.subscribe_trajectory_queue(trajectory_queue)
    trainer.publish_policy_queue(policy_queue)
    time_horizon = 10
    trajectory = mb.make_fake_trajectory(
        length=time_horizon,
        observation_specs=behavior_spec.observation_specs,
        max_step_complete=False,
        action_spec=behavior_spec.action_spec,
        num_other_agents_in_group=2,
        group_reward=1.0,
        is_terminal=False,
    )
    trajectory_queue.put(trajectory)
    trainer.advance()
    # Test that some trajectoories have been injested
    for reward in trainer.collected_group_rewards.values():
        assert reward == 10
    # Test end episode
    trainer.end_episode()
    assert len(trainer.collected_group_rewards.keys()) == 0
Ejemplo n.º 12
0
def test_summary_checkpoint(mock_write_summary, mock_save_model):
    trainer = create_rl_trainer()
    trajectory_queue = AgentManagerQueue("testbrain")
    policy_queue = AgentManagerQueue("testbrain")
    trainer.subscribe_trajectory_queue(trajectory_queue)
    trainer.publish_policy_queue(policy_queue)
    time_horizon = 10
    summary_freq = trainer.trainer_settings.summary_freq
    checkpoint_interval = trainer.trainer_settings.checkpoint_interval
    trajectory = mb.make_fake_trajectory(
        length=time_horizon,
        max_step_complete=True,
        vec_obs_size=1,
        num_vis_obs=0,
        action_space=[2],
    )
    # Check that we can turn off the trainer and that the buffer is cleared
    num_trajectories = 5
    for _ in range(0, num_trajectories):
        trajectory_queue.put(trajectory)
        trainer.advance()
        # Check that there is stuff in the policy queue
        policy_queue.get_nowait()

    # Check that we have called write_summary the appropriate number of times
    calls = [
        mock.call(step) for step in range(summary_freq, num_trajectories *
                                          time_horizon, summary_freq)
    ]
    mock_write_summary.assert_has_calls(calls, any_order=True)

    calls = [
        mock.call(trainer.brain_name)
        for step in range(checkpoint_interval, num_trajectories *
                          time_horizon, checkpoint_interval)
    ]
    mock_save_model.assert_has_calls(calls, any_order=True)
Ejemplo n.º 13
0
def test_advance(mocked_clear_update_buffer, mocked_save_model):
    trainer = create_rl_trainer()
    mock_policy = mock.Mock()
    mock_policy.model_path = "mock_model_path"
    trainer.add_policy("TestBrain", mock_policy)
    trajectory_queue = AgentManagerQueue("testbrain")
    policy_queue = AgentManagerQueue("testbrain")
    trainer.subscribe_trajectory_queue(trajectory_queue)
    trainer.publish_policy_queue(policy_queue)
    time_horizon = 10
    trajectory = mb.make_fake_trajectory(
        length=time_horizon,
        observation_shapes=[(1, )],
        max_step_complete=True,
        action_space=[2],
    )
    trajectory_queue.put(trajectory)

    trainer.advance()
    policy_queue.get_nowait()
    # Check that get_step is correct
    assert trainer.get_step == time_horizon
    # Check that we can turn off the trainer and that the buffer is cleared
    for _ in range(0, 5):
        trajectory_queue.put(trajectory)
        trainer.advance()
        # Check that there is stuff in the policy queue
        policy_queue.get_nowait()

    # Check that if the policy doesn't update, we don't push it to the queue
    trainer.set_is_policy_updating(False)
    for _ in range(0, 10):
        trajectory_queue.put(trajectory)
        trainer.advance()
        # Check that there nothing  in the policy queue
        with pytest.raises(AgentManagerQueue.Empty):
            policy_queue.get_nowait()

    # Check that the buffer has been cleared
    assert not trainer.should_still_train
    assert mocked_clear_update_buffer.call_count > 0
    assert mocked_save_model.call_count == 0
Ejemplo n.º 14
0
def test_advance(dummy_config):
    brain_params = make_brain_parameters(
        discrete_action=False, visual_inputs=0, vec_obs_size=6
    )
    dummy_config.hyperparameters.steps_per_update = 20
    dummy_config.hyperparameters.reward_signal_steps_per_update = 20
    dummy_config.hyperparameters.buffer_init_steps = 0
    trainer = SACTrainer(brain_params, 0, dummy_config, True, False, 0, "0")
    policy = trainer.create_policy(brain_params.brain_name, brain_params)
    trainer.add_policy(brain_params.brain_name, policy)

    trajectory_queue = AgentManagerQueue("testbrain")
    policy_queue = AgentManagerQueue("testbrain")
    trainer.subscribe_trajectory_queue(trajectory_queue)
    trainer.publish_policy_queue(policy_queue)

    trajectory = make_fake_trajectory(
        length=15,
        max_step_complete=True,
        vec_obs_size=6,
        num_vis_obs=0,
        action_space=[2],
        is_discrete=False,
    )
    trajectory_queue.put(trajectory)
    trainer.advance()

    # Check that trainer put trajectory in update buffer
    assert trainer.update_buffer.num_experiences == 15

    # Check that the stats are being collected as episode isn't complete
    for reward in trainer.collected_rewards.values():
        for agent in reward.values():
            assert agent > 0

    # Add a terminal trajectory
    trajectory = make_fake_trajectory(
        length=6,
        max_step_complete=False,
        vec_obs_size=6,
        num_vis_obs=0,
        action_space=[2],
        is_discrete=False,
    )
    trajectory_queue.put(trajectory)
    trainer.advance()

    # Check that the stats are reset as episode is finished
    for reward in trainer.collected_rewards.values():
        for agent in reward.values():
            assert agent == 0
    assert trainer.stats_reporter.get_stats_summaries("Policy/Extrinsic Reward").num > 0
    # Assert we're not just using the default values
    assert (
        trainer.stats_reporter.get_stats_summaries("Policy/Extrinsic Reward").mean > 0
    )

    # Make sure there is a policy on the queue
    policy_queue.get_nowait()

    # Add another trajectory. Since this is less than 20 steps total (enough for)
    # two updates, there should NOT be a policy on the queue.
    trajectory = make_fake_trajectory(
        length=5,
        max_step_complete=False,
        vec_obs_size=6,
        num_vis_obs=0,
        action_space=[2],
        is_discrete=False,
    )
    trajectory_queue.put(trajectory)
    trainer.advance()
    with pytest.raises(AgentManagerQueue.Empty):
        policy_queue.get_nowait()

    # Call add_policy and check that we update the correct number of times.
    # This is to emulate a load from checkpoint.
    policy = trainer.create_policy(brain_params.brain_name, brain_params)
    policy.get_current_step = lambda: 200
    trainer.add_policy(brain_params.brain_name, policy)
    trainer.optimizer.update = mock.Mock()
    trainer.optimizer.update_reward_signals = mock.Mock()
    trainer.optimizer.update_reward_signals.return_value = {}
    trainer.optimizer.update.return_value = {}
    trajectory_queue.put(trajectory)
    trainer.advance()
    # Make sure we did exactly 1 update
    assert trainer.optimizer.update.call_count == 1
    assert trainer.optimizer.update_reward_signals.call_count == 1
Ejemplo n.º 15
0
def test_advance(dummy_config):
    brain_params = make_brain_parameters(discrete_action=False,
                                         visual_inputs=0,
                                         vec_obs_size=6)
    dummy_config["output_path"] = "./results/test_trainer_models/TestModel"
    dummy_config["steps_per_update"] = 20
    trainer = SACTrainer(brain_params, 0, dummy_config, True, False, 0, "0")
    policy = trainer.create_policy(brain_params.brain_name, brain_params)
    trainer.add_policy(brain_params.brain_name, policy)

    trajectory_queue = AgentManagerQueue("testbrain")
    policy_queue = AgentManagerQueue("testbrain")
    trainer.subscribe_trajectory_queue(trajectory_queue)
    trainer.publish_policy_queue(policy_queue)

    trajectory = make_fake_trajectory(
        length=15,
        max_step_complete=True,
        vec_obs_size=6,
        num_vis_obs=0,
        action_space=[2],
        is_discrete=False,
    )
    trajectory_queue.put(trajectory)
    trainer.advance()

    # Check that trainer put trajectory in update buffer
    assert trainer.update_buffer.num_experiences == 15

    # Check that the stats are being collected as episode isn't complete
    for reward in trainer.collected_rewards.values():
        for agent in reward.values():
            assert agent > 0

    # Add a terminal trajectory
    trajectory = make_fake_trajectory(
        length=6,
        max_step_complete=False,
        vec_obs_size=6,
        num_vis_obs=0,
        action_space=[2],
        is_discrete=False,
    )
    trajectory_queue.put(trajectory)
    trainer.advance()

    # Check that the stats are reset as episode is finished
    for reward in trainer.collected_rewards.values():
        for agent in reward.values():
            assert agent == 0
    assert trainer.stats_reporter.get_stats_summaries(
        "Policy/Extrinsic Reward").num > 0
    # Assert we're not just using the default values
    assert (trainer.stats_reporter.get_stats_summaries(
        "Policy/Extrinsic Reward").mean > 0)

    # Make sure there is a policy on the queue
    policy_queue.get_nowait()

    # Add another trajectory. Since this is less than 20 steps total (enough for)
    # two updates, there should NOT be a policy on the queue.
    trajectory = make_fake_trajectory(
        length=5,
        max_step_complete=False,
        vec_obs_size=6,
        num_vis_obs=0,
        action_space=[2],
        is_discrete=False,
    )
    trajectory_queue.put(trajectory)
    trainer.advance()
    with pytest.raises(AgentManagerQueue.Empty):
        policy_queue.get_nowait()