Ejemplo n.º 1
0
    def _spawn_cameras(self):
        '''helper method for initializing cameras
        '''
        # virtual event configure camera does not need to wait for car to spawm because
        # follow car camera is not tracking any car initially
        camera_manager = CameraManager.get_instance()

        # pop all camera under virtual event namespace
        camera_manager.pop(namespace=VIRTUAL_EVENT)

        # Spawn the follow car camera
        LOG.info(
            "[virtual event manager] Spawning virtual event follow car camera model"
        )
        initial_pose = self._track_data.get_racecar_start_pose(
            racecar_idx=0,
            racer_num=1,
            start_position=get_start_positions(1)[0])
        self._main_cameras[VIRTUAL_EVENT].spawn_model(
            initial_pose,
            os.path.join(self._deepracer_path, "models", "camera",
                         "model.sdf"))

        LOG.info("[virtual event manager] Spawning sub camera model")
        # Spawn the top camera model
        self._sub_camera.spawn_model(
            None,
            os.path.join(self._deepracer_path, "models", "top_camera",
                         "model.sdf"))
    def _get_agent_list(self, model_metadata, version):
        """Setup agent and get the agents list.

        Args:
            model_metadata (ModelMetadata): Current racer's model metadata
            version (str): The current racer's simapp version in the model metadata

        Returns:
            agent_list (list): The list of agents for the current racer
        """
        # setup agent
        agent_config = {
            "model_metadata": model_metadata,
            ConfigParams.CAR_CTRL_CONFIG.value: {
                ConfigParams.LINK_NAME_LIST.value: [
                    link_name.replace("racecar", self._current_car_model_state.model_name)
                    for link_name in LINK_NAMES
                ],
                ConfigParams.VELOCITY_LIST.value: [
                    velocity_topic.replace("racecar", self._current_car_model_state.model_name)
                    for velocity_topic in VELOCITY_TOPICS
                ],
                ConfigParams.STEERING_LIST.value: [
                    steering_topic.replace("racecar", self._current_car_model_state.model_name)
                    for steering_topic in STEERING_TOPICS
                ],
                ConfigParams.CHANGE_START.value: utils.str2bool(
                    rospy.get_param("CHANGE_START_POSITION", False)
                ),
                ConfigParams.ALT_DIR.value: utils.str2bool(
                    rospy.get_param("ALTERNATE_DRIVING_DIRECTION", False)
                ),
                ConfigParams.MODEL_METADATA.value: model_metadata,
                ConfigParams.REWARD.value: reward_function,
                ConfigParams.AGENT_NAME.value: self._current_car_model_state.model_name,
                ConfigParams.VERSION.value: version,
                ConfigParams.NUMBER_OF_RESETS.value: self._number_of_resets,
                ConfigParams.PENALTY_SECONDS.value: self._penalty_seconds,
                ConfigParams.NUMBER_OF_TRIALS.value: self._number_of_trials,
                ConfigParams.IS_CONTINUOUS.value: self._is_continuous,
                ConfigParams.RACE_TYPE.value: self._race_type,
                ConfigParams.COLLISION_PENALTY.value: self._collision_penalty,
                ConfigParams.OFF_TRACK_PENALTY.value: self._off_track_penalty,
                ConfigParams.START_POSITION.value: get_start_positions(1)[
                    0
                ],  # hard-coded to the first start position
                ConfigParams.DONE_CONDITION.value: self._done_condition,
                ConfigParams.IS_VIRTUAL_EVENT.value: True,
                ConfigParams.RACE_DURATION.value: self._race_duration,
            },
        }

        agent_list = list()
        agent_list.append(
            create_rollout_agent(agent_config, self._eval_metrics, self._run_phase_subject)
        )
        agent_list.append(create_obstacles_agent())
        agent_list.append(create_bot_cars_agent())
        return agent_list
Ejemplo n.º 3
0
    def setup_race(self):
        """
            Setting up the race for the current racer.

        Returns:
            bool: True if setup race is successful.
                  False is a non fatal exception occurred.
        """

        LOG.info("[virtual event manager] Setting up race for racer")
        try:
            # unpause the physics in current world
            self._model_updater.unpause_physics()
            LOG.info("[virtual event manager] Unpaused physics in current world.")
            # set camera to starting position
            initial_pose = self._track_data.get_racecar_start_pose(
                racecar_idx=0,
                racer_num=1,
                start_position=get_start_positions(1)[0])
            self._main_cameras[VIRTUAL_EVENT].reset_pose(
                car_pose=initial_pose)
            LOG.info("[virtual event manager] Reset camera to starting line.")
            if self._prev_model_name is not None:
                # NOTE: it's by design that we immediately part the previous car to pit
                # location right after unpause physics. This prevents any unwanted
                # leftover behavior to happen
                self._park_at_pit_location(self._prev_model_name)
                LOG.info("[virtual event manager] Parked previous model %s to pit location.",
                         self._prev_model_name)
            self._model_updater.pause_physics()
            LOG.info("[virtual event manager] Paused physics in current world.")
            # download model metadata from s3
            sensors, version, model_metadata = self._download_model_metadata()
            # based on model metadata, select racecar
            self._current_car_model_state = self._get_car_model_state(sensors)
            # download checkpoint from s3
            checkpoint = self._download_checkpoint(version)
            # setup the simtrace and mp4 writers if the s3 locations are available
            self._setup_simtrace_mp4_writers()
            # reset the metrics s3 location for the current racer
            self._reset_metrics_loc()
            # setup agents
            agent_list = self._get_agent_list(model_metadata, version)
            self._setup_graph_manager(checkpoint, agent_list)
            LOG.info("[virtual event manager] Graph manager successfully created the graph: setup race successful.")
            return True
        except GenericNonFatalException as ex:
            ex.log_except_and_continue()
            self.upload_race_status(status_code=ex.error_code,
                                    error_name=ex.error_name,
                                    error_details=ex.error_msg)
            self._clean_up_race()
            return False
        except Exception as ex:
            log_and_exit("[virtual event manager] Something really wrong happened when setting up the race. {}".format(ex),
                         SIMAPP_VIRTUAL_EVENT_RACE_EXCEPTION,
                         SIMAPP_EVENT_ERROR_CODE_500)
Ejemplo n.º 4
0
    def setup_race(self):
        """
            Setting up the race for the current racer.

        Returns:
            bool: True if setup race is successful.
                  False is a non fatal exception occurred.
        """

        LOG.info("[virtual event manager] Setting up race for racer")
        try:
            self._model_updater.unpause_physics()
            LOG.info(
                "[virtual event manager] Unpause physics in current world to setup race."
            )
            # step 1: hide the racecar to a position that camera cannot see
            self._hide_racecar_model(
                model_name=self._current_car_model_state.model_name)

            # step 2: set camera to starting position after previous car is deleted
            initial_pose = self._track_data.get_racecar_start_pose(
                racecar_idx=0,
                racer_num=1,
                start_position=get_start_positions(1)[0])
            self._main_cameras[VIRTUAL_EVENT].reset_pose(car_pose=initial_pose)
            LOG.info("[virtual event manager] Reset camera to starting line.")

            # step 3: download model metadata from s3
            sensors, version, model_metadata = self._download_model_metadata()

            # step 4: check whether body shell and sensors have been updated
            # to decide whether need to delete and re-spawn. Then, update
            # shell or color accordingly
            if hasattr(self._current_racer, "carConfig") and \
                    hasattr(self._current_racer.carConfig, "bodyShellType"):
                body_shell_type = self._current_racer.carConfig.bodyShellType \
                    if self._current_racer.carConfig.bodyShellType in self._valid_body_shells \
                    else const.BodyShellType.DEFAULT.value
            else:
                body_shell_type = const.BodyShellType.DEFAULT.value

            # check whether need to delete and respawn racecar
            # re-spawn if sensor or body shell type changed
            if self._last_body_shell_type != body_shell_type or \
                    self._last_sensors != sensors:
                # delete last racecar
                self._racecar_model.delete()
                # respawn a new racecar
                hide_pose = Pose()
                hide_pose.position.x = self._hide_positions[
                    self._hide_position_idx][0]
                hide_pose.position.y = self._hide_positions[
                    self._hide_position_idx][1]
                self._racecar_model.spawn(
                    name=self._current_car_model_state.model_name,
                    pose=hide_pose,
                    include_second_camera="true"
                    if Input.STEREO.value in sensors else "false",
                    include_lidar_sensor=str(
                        any(["lidar" in sensor.lower()
                             for sensor in sensors])).lower(),
                    body_shell_type=body_shell_type,
                    lidar_360_degree_sample=str(LIDAR_360_DEGREE_SAMPLE),
                    lidar_360_degree_horizontal_resolution=str(
                        LIDAR_360_DEGREE_HORIZONTAL_RESOLUTION),
                    lidar_360_degree_min_angle=str(LIDAR_360_DEGREE_MIN_ANGLE),
                    lidar_360_degree_max_angle=str(LIDAR_360_DEGREE_MAX_ANGLE),
                    lidar_360_degree_min_range=str(LIDAR_360_DEGREE_MIN_RANGE),
                    lidar_360_degree_max_range=str(LIDAR_360_DEGREE_MAX_RANGE),
                    lidar_360_degree_range_resolution=str(
                        LIDAR_360_DEGREE_RANGE_RESOLUTION),
                    lidar_360_degree_noise_mean=str(
                        LIDAR_360_DEGREE_NOISE_MEAN),
                    lidar_360_degree_noise_stddev=str(
                        LIDAR_360_DEGREE_NOISE_STDDEV))
                self._last_body_shell_type = body_shell_type
                self._last_sensors = sensors

            # step 5: download checkpoint, setup simtrace, mp4, clear metrics, and setup graph manager
            # download checkpoint from s3
            checkpoint = self._download_checkpoint(version)
            # setup the simtrace and mp4 writers if the s3 locations are available
            self._setup_simtrace_mp4_writers()
            # reset the metrics s3 location for the current racer
            self._reset_metrics_loc()
            # setup agents
            agent_list = self._get_agent_list(model_metadata, version)
            # after _setup_graph_manager finishes, physics is paused
            # physics will be unpaused again when race start
            self._setup_graph_manager(checkpoint, agent_list)
            LOG.info(
                "[virtual event manager] Graph manager successfully created the graph: setup race successful."
            )

            # step 6: update body shell or color
            # treat amazon van digital reward specially by also hiding the collision wheel
            visuals = self._model_updater.get_model_visuals(
                self._current_car_model_state.model_name)
            if const.F1 in body_shell_type:
                self._model_updater.hide_visuals(
                    visuals=visuals,
                    ignore_keywords=["f1_body_link"] if "with_wheel"
                    in body_shell_type.lower() else ["wheel", "f1_body_link"])
            else:
                if hasattr(self._current_racer, "carConfig") and \
                        hasattr(self._current_racer.carConfig, "carColor"):
                    car_color = self._current_racer.carConfig.carColor if self._current_racer.carConfig.carColor in self._valid_car_colors \
                        else DEFAULT_COLOR
                else:
                    car_color = DEFAULT_COLOR
                self._model_updater.update_color(visuals, car_color)
            return True
        except GenericNonFatalException as ex:
            ex.log_except_and_continue()
            self.upload_race_status(status_code=ex.error_code,
                                    error_name=ex.error_name,
                                    error_details=ex.error_msg)
            self._clean_up_race()
            return False
        except Exception as ex:
            log_and_exit(
                "[virtual event manager] Something really wrong happened when setting up the race. {}"
                .format(ex), SIMAPP_VIRTUAL_EVENT_RACE_EXCEPTION,
                SIMAPP_EVENT_ERROR_CODE_500)
Ejemplo n.º 5
0
def main():
    """ Main function for evaluation worker """
    parser = argparse.ArgumentParser()
    parser.add_argument('-p',
                        '--preset',
                        help="(string) Name of a preset to run \
                             (class name from the 'presets' directory.)",
                        type=str,
                        required=False)
    parser.add_argument('--s3_bucket',
                        help='list(string) S3 bucket',
                        type=str,
                        nargs='+',
                        default=rospy.get_param("MODEL_S3_BUCKET",
                                                ["gsaur-test"]))
    parser.add_argument('--s3_prefix',
                        help='list(string) S3 prefix',
                        type=str,
                        nargs='+',
                        default=rospy.get_param("MODEL_S3_PREFIX",
                                                ["sagemaker"]))
    parser.add_argument('--aws_region',
                        help='(string) AWS region',
                        type=str,
                        default=rospy.get_param("AWS_REGION", "us-east-1"))
    parser.add_argument('--number_of_trials',
                        help='(integer) Number of trials',
                        type=int,
                        default=int(rospy.get_param("NUMBER_OF_TRIALS", 10)))
    parser.add_argument(
        '-c',
        '--local_model_directory',
        help='(string) Path to a folder containing a checkpoint \
                             to restore the model from.',
        type=str,
        default='./checkpoint')
    parser.add_argument('--number_of_resets',
                        help='(integer) Number of resets',
                        type=int,
                        default=int(rospy.get_param("NUMBER_OF_RESETS", 0)))
    parser.add_argument('--penalty_seconds',
                        help='(float) penalty second',
                        type=float,
                        default=float(rospy.get_param("PENALTY_SECONDS", 2.0)))
    parser.add_argument('--job_type',
                        help='(string) job type',
                        type=str,
                        default=rospy.get_param("JOB_TYPE", "EVALUATION"))
    parser.add_argument('--is_continuous',
                        help='(boolean) is continous after lap completion',
                        type=bool,
                        default=utils.str2bool(
                            rospy.get_param("IS_CONTINUOUS", False)))
    parser.add_argument('--race_type',
                        help='(string) Race type',
                        type=str,
                        default=rospy.get_param("RACE_TYPE", "TIME_TRIAL"))
    parser.add_argument('--off_track_penalty',
                        help='(float) off track penalty second',
                        type=float,
                        default=float(rospy.get_param("OFF_TRACK_PENALTY",
                                                      2.0)))
    parser.add_argument('--collision_penalty',
                        help='(float) collision penalty second',
                        type=float,
                        default=float(rospy.get_param("COLLISION_PENALTY",
                                                      5.0)))

    args = parser.parse_args()
    arg_s3_bucket = args.s3_bucket
    arg_s3_prefix = args.s3_prefix
    logger.info("S3 bucket: %s \n S3 prefix: %s", arg_s3_bucket, arg_s3_prefix)

    metrics_s3_buckets = rospy.get_param('METRICS_S3_BUCKET')
    metrics_s3_object_keys = rospy.get_param('METRICS_S3_OBJECT_KEY')

    arg_s3_bucket, arg_s3_prefix = utils.force_list(
        arg_s3_bucket), utils.force_list(arg_s3_prefix)
    metrics_s3_buckets = utils.force_list(metrics_s3_buckets)
    metrics_s3_object_keys = utils.force_list(metrics_s3_object_keys)

    validate_list = [
        arg_s3_bucket, arg_s3_prefix, metrics_s3_buckets,
        metrics_s3_object_keys
    ]

    simtrace_s3_bucket = rospy.get_param('SIMTRACE_S3_BUCKET', None)
    mp4_s3_bucket = rospy.get_param('MP4_S3_BUCKET', None)
    if simtrace_s3_bucket:
        simtrace_s3_object_prefix = rospy.get_param('SIMTRACE_S3_PREFIX')
        simtrace_s3_bucket = utils.force_list(simtrace_s3_bucket)
        simtrace_s3_object_prefix = utils.force_list(simtrace_s3_object_prefix)
        validate_list.extend([simtrace_s3_bucket, simtrace_s3_object_prefix])
    if mp4_s3_bucket:
        mp4_s3_object_prefix = rospy.get_param('MP4_S3_OBJECT_PREFIX')
        mp4_s3_bucket = utils.force_list(mp4_s3_bucket)
        mp4_s3_object_prefix = utils.force_list(mp4_s3_object_prefix)
        validate_list.extend([mp4_s3_bucket, mp4_s3_object_prefix])

    if not all([lambda x: len(x) == len(validate_list[0]), validate_list]):
        log_and_exit(
            "Eval worker error: Incorrect arguments passed: {}".format(
                validate_list), SIMAPP_SIMULATION_WORKER_EXCEPTION,
            SIMAPP_EVENT_ERROR_CODE_500)
    if args.number_of_resets != 0 and args.number_of_resets < MIN_RESET_COUNT:
        raise GenericRolloutException(
            "number of resets is less than {}".format(MIN_RESET_COUNT))

    # Instantiate Cameras
    if len(arg_s3_bucket) == 1:
        configure_camera(namespaces=['racecar'])
    else:
        configure_camera(namespaces=[
            'racecar_{}'.format(str(agent_index))
            for agent_index in range(len(arg_s3_bucket))
        ])

    agent_list = list()
    s3_bucket_dict = dict()
    s3_prefix_dict = dict()
    checkpoint_dict = dict()
    simtrace_video_s3_writers = []
    start_positions = get_start_positions(len(arg_s3_bucket))
    done_condition = utils.str_to_done_condition(
        rospy.get_param("DONE_CONDITION", any))
    park_positions = utils.pos_2d_str_to_list(
        rospy.get_param("PARK_POSITIONS", []))
    # if not pass in park positions for all done condition case, use default
    if not park_positions:
        park_positions = [DEFAULT_PARK_POSITION for _ in arg_s3_bucket]
    for agent_index, _ in enumerate(arg_s3_bucket):
        agent_name = 'agent' if len(arg_s3_bucket) == 1 else 'agent_{}'.format(
            str(agent_index))
        racecar_name = 'racecar' if len(
            arg_s3_bucket) == 1 else 'racecar_{}'.format(str(agent_index))
        s3_bucket_dict[agent_name] = arg_s3_bucket[agent_index]
        s3_prefix_dict[agent_name] = arg_s3_prefix[agent_index]

        # download model metadata
        model_metadata = ModelMetadata(
            bucket=arg_s3_bucket[agent_index],
            s3_key=get_s3_key(arg_s3_prefix[agent_index],
                              MODEL_METADATA_S3_POSTFIX),
            region_name=args.aws_region,
            local_path=MODEL_METADATA_LOCAL_PATH_FORMAT.format(agent_name))
        model_metadata_info = model_metadata.get_model_metadata_info()
        version = model_metadata_info[ModelMetadataKeys.VERSION.value]

        # checkpoint s3 instance
        checkpoint = Checkpoint(bucket=arg_s3_bucket[agent_index],
                                s3_prefix=arg_s3_prefix[agent_index],
                                region_name=args.aws_region,
                                agent_name=agent_name,
                                checkpoint_dir=args.local_model_directory)
        # make coach checkpoint compatible
        if version < SIMAPP_VERSION_2 and not checkpoint.rl_coach_checkpoint.is_compatible(
        ):
            checkpoint.rl_coach_checkpoint.make_compatible(
                checkpoint.syncfile_ready)
        # get best model checkpoint string
        model_checkpoint_name = checkpoint.deepracer_checkpoint_json.get_deepracer_best_checkpoint(
        )
        # Select the best checkpoint model by uploading rl coach .coach_checkpoint file
        checkpoint.rl_coach_checkpoint.update(
            model_checkpoint_name=model_checkpoint_name,
            s3_kms_extra_args=utils.get_s3_kms_extra_args())

        checkpoint_dict[agent_name] = checkpoint

        agent_config = {
            'model_metadata': model_metadata,
            ConfigParams.CAR_CTRL_CONFIG.value: {
                ConfigParams.LINK_NAME_LIST.value: [
                    link_name.replace('racecar', racecar_name)
                    for link_name in LINK_NAMES
                ],
                ConfigParams.VELOCITY_LIST.value: [
                    velocity_topic.replace('racecar', racecar_name)
                    for velocity_topic in VELOCITY_TOPICS
                ],
                ConfigParams.STEERING_LIST.value: [
                    steering_topic.replace('racecar', racecar_name)
                    for steering_topic in STEERING_TOPICS
                ],
                ConfigParams.CHANGE_START.value:
                utils.str2bool(rospy.get_param('CHANGE_START_POSITION',
                                               False)),
                ConfigParams.ALT_DIR.value:
                utils.str2bool(
                    rospy.get_param('ALTERNATE_DRIVING_DIRECTION', False)),
                ConfigParams.MODEL_METADATA.value:
                model_metadata,
                ConfigParams.REWARD.value:
                reward_function,
                ConfigParams.AGENT_NAME.value:
                racecar_name,
                ConfigParams.VERSION.value:
                version,
                ConfigParams.NUMBER_OF_RESETS.value:
                args.number_of_resets,
                ConfigParams.PENALTY_SECONDS.value:
                args.penalty_seconds,
                ConfigParams.NUMBER_OF_TRIALS.value:
                args.number_of_trials,
                ConfigParams.IS_CONTINUOUS.value:
                args.is_continuous,
                ConfigParams.RACE_TYPE.value:
                args.race_type,
                ConfigParams.COLLISION_PENALTY.value:
                args.collision_penalty,
                ConfigParams.OFF_TRACK_PENALTY.value:
                args.off_track_penalty,
                ConfigParams.START_POSITION.value:
                start_positions[agent_index],
                ConfigParams.DONE_CONDITION.value:
                done_condition
            }
        }

        metrics_s3_config = {
            MetricsS3Keys.METRICS_BUCKET.value:
            metrics_s3_buckets[agent_index],
            MetricsS3Keys.METRICS_KEY.value:
            metrics_s3_object_keys[agent_index],
            # Replaced rospy.get_param('AWS_REGION') to be equal to the argument being passed
            # or default argument set
            MetricsS3Keys.REGION.value:
            args.aws_region
        }
        aws_region = rospy.get_param('AWS_REGION', args.aws_region)

        if simtrace_s3_bucket:
            simtrace_video_s3_writers.append(
                SimtraceVideo(
                    upload_type=SimtraceVideoNames.SIMTRACE_EVAL.value,
                    bucket=simtrace_s3_bucket[agent_index],
                    s3_prefix=simtrace_s3_object_prefix[agent_index],
                    region_name=aws_region,
                    local_path=SIMTRACE_EVAL_LOCAL_PATH_FORMAT.format(
                        agent_name)))
        if mp4_s3_bucket:
            simtrace_video_s3_writers.extend([
                SimtraceVideo(
                    upload_type=SimtraceVideoNames.PIP.value,
                    bucket=mp4_s3_bucket[agent_index],
                    s3_prefix=mp4_s3_object_prefix[agent_index],
                    region_name=aws_region,
                    local_path=CAMERA_PIP_MP4_LOCAL_PATH_FORMAT.format(
                        agent_name)),
                SimtraceVideo(
                    upload_type=SimtraceVideoNames.DEGREE45.value,
                    bucket=mp4_s3_bucket[agent_index],
                    s3_prefix=mp4_s3_object_prefix[agent_index],
                    region_name=aws_region,
                    local_path=CAMERA_45DEGREE_LOCAL_PATH_FORMAT.format(
                        agent_name)),
                SimtraceVideo(
                    upload_type=SimtraceVideoNames.TOPVIEW.value,
                    bucket=mp4_s3_bucket[agent_index],
                    s3_prefix=mp4_s3_object_prefix[agent_index],
                    region_name=aws_region,
                    local_path=CAMERA_TOPVIEW_LOCAL_PATH_FORMAT.format(
                        agent_name))
            ])

        run_phase_subject = RunPhaseSubject()
        agent_list.append(
            create_rollout_agent(
                agent_config,
                EvalMetrics(agent_name, metrics_s3_config, args.is_continuous),
                run_phase_subject))
    agent_list.append(create_obstacles_agent())
    agent_list.append(create_bot_cars_agent())

    # ROS service to indicate all the robomaker markov packages are ready for consumption
    signal_robomaker_markov_package_ready()

    PhaseObserver('/agent/training_phase', run_phase_subject)
    enable_domain_randomization = utils.str2bool(
        rospy.get_param('ENABLE_DOMAIN_RANDOMIZATION', False))

    sm_hyperparams_dict = {}

    # Make the clients that will allow us to pause and unpause the physics
    rospy.wait_for_service('/gazebo/pause_physics_dr')
    rospy.wait_for_service('/gazebo/unpause_physics_dr')
    pause_physics = ServiceProxyWrapper('/gazebo/pause_physics_dr', Empty)
    unpause_physics = ServiceProxyWrapper('/gazebo/unpause_physics_dr', Empty)

    graph_manager, _ = get_graph_manager(
        hp_dict=sm_hyperparams_dict,
        agent_list=agent_list,
        run_phase_subject=run_phase_subject,
        enable_domain_randomization=enable_domain_randomization,
        done_condition=done_condition,
        pause_physics=pause_physics,
        unpause_physics=unpause_physics)

    ds_params_instance = S3BotoDataStoreParameters(
        checkpoint_dict=checkpoint_dict)

    graph_manager.data_store = S3BotoDataStore(params=ds_params_instance,
                                               graph_manager=graph_manager,
                                               ignore_lock=True)
    graph_manager.env_params.seed = 0

    task_parameters = TaskParameters()
    task_parameters.checkpoint_restore_path = args.local_model_directory

    evaluation_worker(graph_manager=graph_manager,
                      number_of_trials=args.number_of_trials,
                      task_parameters=task_parameters,
                      simtrace_video_s3_writers=simtrace_video_s3_writers,
                      is_continuous=args.is_continuous,
                      park_positions=park_positions,
                      race_type=args.race_type,
                      pause_physics=pause_physics,
                      unpause_physics=unpause_physics)
Ejemplo n.º 6
0
def main():
    """ Main function for evaluation worker """
    parser = argparse.ArgumentParser()
    parser.add_argument('-p',
                        '--preset',
                        help="(string) Name of a preset to run \
                             (class name from the 'presets' directory.)",
                        type=str,
                        required=False)
    parser.add_argument('--s3_bucket',
                        help='list(string) S3 bucket',
                        type=str,
                        nargs='+',
                        default=rospy.get_param("MODEL_S3_BUCKET",
                                                ["gsaur-test"]))
    parser.add_argument('--s3_prefix',
                        help='list(string) S3 prefix',
                        type=str,
                        nargs='+',
                        default=rospy.get_param("MODEL_S3_PREFIX",
                                                ["sagemaker"]))
    parser.add_argument('--s3_endpoint_url',
                        help='(string) S3 endpoint URL',
                        type=str,
                        default=rospy.get_param("S3_ENDPOINT_URL", None))
    parser.add_argument('--aws_region',
                        help='(string) AWS region',
                        type=str,
                        default=rospy.get_param("AWS_REGION", "us-east-1"))
    parser.add_argument('--number_of_trials',
                        help='(integer) Number of trials',
                        type=int,
                        default=int(rospy.get_param("NUMBER_OF_TRIALS", 10)))
    parser.add_argument(
        '-c',
        '--local_model_directory',
        help='(string) Path to a folder containing a checkpoint \
                             to restore the model from.',
        type=str,
        default='./checkpoint')
    parser.add_argument('--number_of_resets',
                        help='(integer) Number of resets',
                        type=int,
                        default=int(rospy.get_param("NUMBER_OF_RESETS", 0)))
    parser.add_argument('--penalty_seconds',
                        help='(float) penalty second',
                        type=float,
                        default=float(rospy.get_param("PENALTY_SECONDS", 2.0)))
    parser.add_argument('--job_type',
                        help='(string) job type',
                        type=str,
                        default=rospy.get_param("JOB_TYPE", "EVALUATION"))
    parser.add_argument('--is_continuous',
                        help='(boolean) is continous after lap completion',
                        type=bool,
                        default=utils.str2bool(
                            rospy.get_param("IS_CONTINUOUS", False)))
    parser.add_argument('--race_type',
                        help='(string) Race type',
                        type=str,
                        default=rospy.get_param("RACE_TYPE", "TIME_TRIAL"))
    parser.add_argument('--off_track_penalty',
                        help='(float) off track penalty second',
                        type=float,
                        default=float(rospy.get_param("OFF_TRACK_PENALTY",
                                                      2.0)))
    parser.add_argument('--collision_penalty',
                        help='(float) collision penalty second',
                        type=float,
                        default=float(rospy.get_param("COLLISION_PENALTY",
                                                      5.0)))
    parser.add_argument('--round_robin_advance_dist',
                        help='(float) round robin distance 0-1',
                        type=float,
                        default=float(
                            rospy.get_param("ROUND_ROBIN_ADVANCE_DIST", 0.05)))
    parser.add_argument('--start_position_offset',
                        help='(float) offset start 0-1',
                        type=float,
                        default=float(
                            rospy.get_param("START_POSITION_OFFSET", 0.0)))

    args = parser.parse_args()
    arg_s3_bucket = args.s3_bucket
    arg_s3_prefix = args.s3_prefix
    logger.info("S3 bucket: %s \n S3 prefix: %s \n S3 endpoint URL: %s",
                args.s3_bucket, args.s3_prefix, args.s3_endpoint_url)

    metrics_s3_buckets = rospy.get_param('METRICS_S3_BUCKET')
    metrics_s3_object_keys = rospy.get_param('METRICS_S3_OBJECT_KEY')

    arg_s3_bucket, arg_s3_prefix = utils.force_list(
        arg_s3_bucket), utils.force_list(arg_s3_prefix)
    metrics_s3_buckets = utils.force_list(metrics_s3_buckets)
    metrics_s3_object_keys = utils.force_list(metrics_s3_object_keys)

    validate_list = [
        arg_s3_bucket, arg_s3_prefix, metrics_s3_buckets,
        metrics_s3_object_keys
    ]

    simtrace_s3_bucket = rospy.get_param('SIMTRACE_S3_BUCKET', None)
    mp4_s3_bucket = rospy.get_param('MP4_S3_BUCKET', None)
    if simtrace_s3_bucket:
        simtrace_s3_object_prefix = rospy.get_param('SIMTRACE_S3_PREFIX')
        simtrace_s3_bucket = utils.force_list(simtrace_s3_bucket)
        simtrace_s3_object_prefix = utils.force_list(simtrace_s3_object_prefix)
        validate_list.extend([simtrace_s3_bucket, simtrace_s3_object_prefix])
    if mp4_s3_bucket:
        mp4_s3_object_prefix = rospy.get_param('MP4_S3_OBJECT_PREFIX')
        mp4_s3_bucket = utils.force_list(mp4_s3_bucket)
        mp4_s3_object_prefix = utils.force_list(mp4_s3_object_prefix)
        validate_list.extend([mp4_s3_bucket, mp4_s3_object_prefix])

    if not all([lambda x: len(x) == len(validate_list[0]), validate_list]):
        log_and_exit(
            "Eval worker error: Incorrect arguments passed: {}".format(
                validate_list), SIMAPP_SIMULATION_WORKER_EXCEPTION,
            SIMAPP_EVENT_ERROR_CODE_500)
    if args.number_of_resets != 0 and args.number_of_resets < MIN_RESET_COUNT:
        raise GenericRolloutException(
            "number of resets is less than {}".format(MIN_RESET_COUNT))

    # Instantiate Cameras
    if len(arg_s3_bucket) == 1:
        configure_camera(namespaces=['racecar'])
    else:
        configure_camera(namespaces=[
            'racecar_{}'.format(str(agent_index))
            for agent_index in range(len(arg_s3_bucket))
        ])

    agent_list = list()
    s3_bucket_dict = dict()
    s3_prefix_dict = dict()
    s3_writers = list()
    start_positions = get_start_positions(len(arg_s3_bucket))
    done_condition = utils.str_to_done_condition(
        rospy.get_param("DONE_CONDITION", any))
    park_positions = utils.pos_2d_str_to_list(
        rospy.get_param("PARK_POSITIONS", []))
    # if not pass in park positions for all done condition case, use default
    if not park_positions:
        park_positions = [DEFAULT_PARK_POSITION for _ in arg_s3_bucket]
    for agent_index, _ in enumerate(arg_s3_bucket):
        agent_name = 'agent' if len(arg_s3_bucket) == 1 else 'agent_{}'.format(
            str(agent_index))
        racecar_name = 'racecar' if len(
            arg_s3_bucket) == 1 else 'racecar_{}'.format(str(agent_index))
        s3_bucket_dict[agent_name] = arg_s3_bucket[agent_index]
        s3_prefix_dict[agent_name] = arg_s3_prefix[agent_index]

        # download model metadata
        model_metadata = ModelMetadata(
            bucket=arg_s3_bucket[agent_index],
            s3_key=get_s3_key(arg_s3_prefix[agent_index],
                              MODEL_METADATA_S3_POSTFIX),
            region_name=args.aws_region,
            s3_endpoint_url=args.s3_endpoint_url,
            local_path=MODEL_METADATA_LOCAL_PATH_FORMAT.format(agent_name))
        _, _, version = model_metadata.get_model_metadata_info()

        # Select the optimal model
        utils.do_model_selection(s3_bucket=arg_s3_bucket[agent_index],
                                 s3_prefix=arg_s3_prefix[agent_index],
                                 region=args.aws_region,
                                 s3_endpoint_url=args.s3_endpoint_url)

        agent_config = {
            'model_metadata': model_metadata,
            ConfigParams.CAR_CTRL_CONFIG.value: {
                ConfigParams.LINK_NAME_LIST.value: [
                    link_name.replace('racecar', racecar_name)
                    for link_name in LINK_NAMES
                ],
                ConfigParams.VELOCITY_LIST.value: [
                    velocity_topic.replace('racecar', racecar_name)
                    for velocity_topic in VELOCITY_TOPICS
                ],
                ConfigParams.STEERING_LIST.value: [
                    steering_topic.replace('racecar', racecar_name)
                    for steering_topic in STEERING_TOPICS
                ],
                ConfigParams.CHANGE_START.value:
                utils.str2bool(rospy.get_param('CHANGE_START_POSITION',
                                               False)),
                ConfigParams.ALT_DIR.value:
                utils.str2bool(
                    rospy.get_param('ALTERNATE_DRIVING_DIRECTION', False)),
                ConfigParams.ACTION_SPACE_PATH.value:
                model_metadata.local_path,
                ConfigParams.REWARD.value:
                reward_function,
                ConfigParams.AGENT_NAME.value:
                racecar_name,
                ConfigParams.VERSION.value:
                version,
                ConfigParams.NUMBER_OF_RESETS.value:
                args.number_of_resets,
                ConfigParams.PENALTY_SECONDS.value:
                args.penalty_seconds,
                ConfigParams.NUMBER_OF_TRIALS.value:
                args.number_of_trials,
                ConfigParams.IS_CONTINUOUS.value:
                args.is_continuous,
                ConfigParams.RACE_TYPE.value:
                args.race_type,
                ConfigParams.COLLISION_PENALTY.value:
                args.collision_penalty,
                ConfigParams.OFF_TRACK_PENALTY.value:
                args.off_track_penalty,
                ConfigParams.START_POSITION.value:
                start_positions[agent_index],
                ConfigParams.DONE_CONDITION.value:
                done_condition,
                ConfigParams.ROUND_ROBIN_ADVANCE_DIST.value:
                args.round_robin_advance_dist,
                ConfigParams.START_POSITION_OFFSET.value:
                args.start_position_offset
            }
        }

        metrics_s3_config = {
            MetricsS3Keys.METRICS_BUCKET.value:
            metrics_s3_buckets[agent_index],
            MetricsS3Keys.METRICS_KEY.value:
            metrics_s3_object_keys[agent_index],
            MetricsS3Keys.ENDPOINT_URL.value:
            rospy.get_param('S3_ENDPOINT_URL', None),
            # Replaced rospy.get_param('AWS_REGION') to be equal to the argument being passed
            # or default argument set
            MetricsS3Keys.REGION.value:
            args.aws_region
        }
        aws_region = rospy.get_param('AWS_REGION', args.aws_region)
        s3_writer_job_info = []
        if simtrace_s3_bucket:
            s3_writer_job_info.append(
                IterationData(
                    'simtrace', simtrace_s3_bucket[agent_index],
                    simtrace_s3_object_prefix[agent_index], aws_region,
                    os.path.join(
                        ITERATION_DATA_LOCAL_FILE_PATH, agent_name,
                        IterationDataLocalFileNames.
                        SIM_TRACE_EVALUATION_LOCAL_FILE.value)))
        if mp4_s3_bucket:
            s3_writer_job_info.extend([
                IterationData(
                    'pip', mp4_s3_bucket[agent_index],
                    mp4_s3_object_prefix[agent_index], aws_region,
                    os.path.join(
                        ITERATION_DATA_LOCAL_FILE_PATH, agent_name,
                        IterationDataLocalFileNames.
                        CAMERA_PIP_MP4_VALIDATION_LOCAL_PATH.value)),
                IterationData(
                    '45degree', mp4_s3_bucket[agent_index],
                    mp4_s3_object_prefix[agent_index], aws_region,
                    os.path.join(
                        ITERATION_DATA_LOCAL_FILE_PATH, agent_name,
                        IterationDataLocalFileNames.
                        CAMERA_45DEGREE_MP4_VALIDATION_LOCAL_PATH.value)),
                IterationData(
                    'topview', mp4_s3_bucket[agent_index],
                    mp4_s3_object_prefix[agent_index], aws_region,
                    os.path.join(
                        ITERATION_DATA_LOCAL_FILE_PATH, agent_name,
                        IterationDataLocalFileNames.
                        CAMERA_TOPVIEW_MP4_VALIDATION_LOCAL_PATH.value))
            ])

        s3_writers.append(
            S3Writer(job_info=s3_writer_job_info,
                     s3_endpoint_url=args.s3_endpoint_url))
        run_phase_subject = RunPhaseSubject()
        agent_list.append(
            create_rollout_agent(
                agent_config,
                EvalMetrics(agent_name, metrics_s3_config, args.is_continuous),
                run_phase_subject))
    agent_list.append(create_obstacles_agent())
    agent_list.append(create_bot_cars_agent())

    # ROS service to indicate all the robomaker markov packages are ready for consumption
    signal_robomaker_markov_package_ready()

    PhaseObserver('/agent/training_phase', run_phase_subject)
    enable_domain_randomization = utils.str2bool(
        rospy.get_param('ENABLE_DOMAIN_RANDOMIZATION', False))

    sm_hyperparams_dict = {}
    graph_manager, _ = get_graph_manager(
        hp_dict=sm_hyperparams_dict,
        agent_list=agent_list,
        run_phase_subject=run_phase_subject,
        enable_domain_randomization=enable_domain_randomization,
        done_condition=done_condition)

    ds_params_instance = S3BotoDataStoreParameters(
        aws_region=args.aws_region,
        bucket_names=s3_bucket_dict,
        base_checkpoint_dir=args.local_model_directory,
        s3_folders=s3_prefix_dict,
        s3_endpoint_url=args.s3_endpoint_url)

    graph_manager.data_store = S3BotoDataStore(params=ds_params_instance,
                                               graph_manager=graph_manager,
                                               ignore_lock=True)
    graph_manager.env_params.seed = 0

    task_parameters = TaskParameters()
    task_parameters.checkpoint_restore_path = args.local_model_directory

    evaluation_worker(graph_manager=graph_manager,
                      number_of_trials=args.number_of_trials,
                      task_parameters=task_parameters,
                      s3_writers=s3_writers,
                      is_continuous=args.is_continuous,
                      park_positions=park_positions)
Ejemplo n.º 7
0
    def __init__(self, racecar_names):
        ''' Constructor for the Deep Racer object, will load track and waypoints
        '''
        # Wait for required services to be available
        rospy.wait_for_service(SET_MODEL_STATE)
        rospy.wait_for_service(GazeboServiceName.PAUSE_PHYSICS.value)
        rospy.wait_for_service(GazeboServiceName.GET_MODEL_PROPERTIES.value)
        rospy.wait_for_service(GazeboServiceName.GET_VISUAL_NAMES.value)
        rospy.wait_for_service(GazeboServiceName.GET_VISUALS.value)
        rospy.wait_for_service(GazeboServiceName.SET_VISUAL_COLORS.value)
        rospy.wait_for_service(GazeboServiceName.SET_VISUAL_TRANSPARENCIES.value)
        rospy.wait_for_service(GazeboServiceName.SET_VISUAL_VISIBLES.value)

        self.racer_num = len(racecar_names)
        for racecar_name in racecar_names:
            wait_for_model(model_name=racecar_name, relative_entity_name='')
        self.car_colors = force_list(rospy.get_param(const.YamlKey.CAR_COLOR.value,
                                                     [const.CarColorType.BLACK.value] * len(racecar_names)))
        self.shell_types = force_list(rospy.get_param(const.YamlKey.BODY_SHELL_TYPE.value,
                                                      [const.BodyShellType.DEFAULT.value] * len(racecar_names)))
        # Gazebo service that allows us to position the car
        self.model_state_client = ServiceProxyWrapper(SET_MODEL_STATE, SetModelState)

        self.get_model_prop = ServiceProxyWrapper(GazeboServiceName.GET_MODEL_PROPERTIES.value,
                                                  GetModelProperties)
        self.get_visual_names = ServiceProxyWrapper(GazeboServiceName.GET_VISUAL_NAMES.value,
                                                    GetVisualNames)
        self.get_visuals = ServiceProxyWrapper(GazeboServiceName.GET_VISUALS.value, GetVisuals)
        self.set_visual_colors = ServiceProxyWrapper(GazeboServiceName.SET_VISUAL_COLORS.value,
                                                     SetVisualColors)
        self.set_visual_transparencies = ServiceProxyWrapper(GazeboServiceName.SET_VISUAL_TRANSPARENCIES.value,
                                                             SetVisualTransparencies)
        self.set_visual_visibles = ServiceProxyWrapper(GazeboServiceName.SET_VISUAL_VISIBLES.value,
                                                       SetVisualVisibles)

        # Place the car at the starting point facing the forward direction
        # Instantiate cameras
        main_cameras, sub_camera = configure_camera(namespaces=racecar_names)
        [camera.detach() for camera in main_cameras.values()]
        sub_camera.detach()
        # Get the root directory of the ros package, this will contain the models
        deepracer_path = rospkg.RosPack().get_path("deepracer_simulation_environment")
        # Grab the track data
        self.track_data = TrackData.get_instance()
        # Set all racers start position in track data
        self.start_positions = get_start_positions(self.racer_num)
        car_poses = []
        for racecar_idx, racecar_name in enumerate(racecar_names):
            car_model_state = self.get_initial_position(racecar_name,
                                                        racecar_idx)
            car_poses.append(car_model_state.pose)
            self.update_model_visual(racecar_name,
                                     self.shell_types[racecar_idx],
                                     self.car_colors[racecar_idx])

        # Let KVS collect a few frames before pausing the physics, so the car
        # will appear on the track
        time.sleep(1)
        pause_physics = ServiceProxyWrapper('/gazebo/pause_physics', Empty)
        logger.info("Pausing physics after initializing the cars")
        pause_physics(EmptyRequest())

        for racecar_name, car_pose in zip(racecar_names, car_poses):
            main_cameras[racecar_name].spawn_model(car_pose,
                                                   os.path.join(deepracer_path, "models",
                                                                "camera", "model.sdf"))

        logger.info("Spawning sub camera model")
        # Spawn the top camera model
        sub_camera.spawn_model(None, os.path.join(deepracer_path, "models",
                                                  "top_camera", "model.sdf"))
Ejemplo n.º 8
0
def main():
    """ Main function for tournament worker """
    parser = argparse.ArgumentParser()
    parser.add_argument('-p',
                        '--preset',
                        help="(string) Name of a preset to run \
                             (class name from the 'presets' directory.)",
                        type=str,
                        required=False)
    parser.add_argument('--s3_bucket',
                        help='list(string) S3 bucket',
                        type=str,
                        nargs='+',
                        default=rospy.get_param("MODEL_S3_BUCKET",
                                                ["gsaur-test"]))
    parser.add_argument('--s3_prefix',
                        help='list(string) S3 prefix',
                        type=str,
                        nargs='+',
                        default=rospy.get_param("MODEL_S3_PREFIX",
                                                ["sagemaker"]))
    parser.add_argument('--aws_region',
                        help='(string) AWS region',
                        type=str,
                        default=rospy.get_param("AWS_REGION", "us-east-1"))
    parser.add_argument('--number_of_trials',
                        help='(integer) Number of trials',
                        type=int,
                        default=int(rospy.get_param("NUMBER_OF_TRIALS", 10)))
    parser.add_argument(
        '-c',
        '--local_model_directory',
        help='(string) Path to a folder containing a checkpoint \
                             to restore the model from.',
        type=str,
        default='./checkpoint')
    parser.add_argument('--number_of_resets',
                        help='(integer) Number of resets',
                        type=int,
                        default=int(rospy.get_param("NUMBER_OF_RESETS", 0)))
    parser.add_argument('--penalty_seconds',
                        help='(float) penalty second',
                        type=float,
                        default=float(rospy.get_param("PENALTY_SECONDS", 2.0)))
    parser.add_argument('--job_type',
                        help='(string) job type',
                        type=str,
                        default=rospy.get_param("JOB_TYPE", "EVALUATION"))
    parser.add_argument('--is_continuous',
                        help='(boolean) is continous after lap completion',
                        type=bool,
                        default=utils.str2bool(
                            rospy.get_param("IS_CONTINUOUS", False)))
    parser.add_argument('--race_type',
                        help='(string) Race type',
                        type=str,
                        default=rospy.get_param("RACE_TYPE", "TIME_TRIAL"))
    parser.add_argument('--off_track_penalty',
                        help='(float) off track penalty second',
                        type=float,
                        default=float(rospy.get_param("OFF_TRACK_PENALTY",
                                                      2.0)))
    parser.add_argument('--collision_penalty',
                        help='(float) collision penalty second',
                        type=float,
                        default=float(rospy.get_param("COLLISION_PENALTY",
                                                      5.0)))

    args = parser.parse_args()
    arg_s3_bucket = args.s3_bucket
    arg_s3_prefix = args.s3_prefix
    logger.info("S3 bucket: %s \n S3 prefix: %s", arg_s3_bucket, arg_s3_prefix)

    # tournament_worker: names to be displayed in MP4.
    # This is racer alias in tournament worker case.
    display_names = utils.get_video_display_name()

    metrics_s3_buckets = rospy.get_param('METRICS_S3_BUCKET')
    metrics_s3_object_keys = rospy.get_param('METRICS_S3_OBJECT_KEY')

    arg_s3_bucket, arg_s3_prefix = utils.force_list(
        arg_s3_bucket), utils.force_list(arg_s3_prefix)
    metrics_s3_buckets = utils.force_list(metrics_s3_buckets)
    metrics_s3_object_keys = utils.force_list(metrics_s3_object_keys)

    validate_list = [
        arg_s3_bucket, arg_s3_prefix, metrics_s3_buckets,
        metrics_s3_object_keys
    ]

    simtrace_s3_bucket = rospy.get_param('SIMTRACE_S3_BUCKET', None)
    mp4_s3_bucket = rospy.get_param('MP4_S3_BUCKET', None)
    if simtrace_s3_bucket:
        simtrace_s3_object_prefix = rospy.get_param('SIMTRACE_S3_PREFIX')
        simtrace_s3_bucket = utils.force_list(simtrace_s3_bucket)
        simtrace_s3_object_prefix = utils.force_list(simtrace_s3_object_prefix)
        validate_list.extend([simtrace_s3_bucket, simtrace_s3_object_prefix])
    if mp4_s3_bucket:
        mp4_s3_object_prefix = rospy.get_param('MP4_S3_OBJECT_PREFIX')
        mp4_s3_bucket = utils.force_list(mp4_s3_bucket)
        mp4_s3_object_prefix = utils.force_list(mp4_s3_object_prefix)
        validate_list.extend([mp4_s3_bucket, mp4_s3_object_prefix])

    if not all([lambda x: len(x) == len(validate_list[0]), validate_list]):
        log_and_exit(
            "Tournament worker error: Incorrect arguments passed: {}".format(
                validate_list), SIMAPP_SIMULATION_WORKER_EXCEPTION,
            SIMAPP_EVENT_ERROR_CODE_500)
    if args.number_of_resets != 0 and args.number_of_resets < MIN_RESET_COUNT:
        raise GenericRolloutException(
            "number of resets is less than {}".format(MIN_RESET_COUNT))

    # Instantiate Cameras
    if len(arg_s3_bucket) == 1:
        configure_camera(namespaces=['racecar'])
    else:
        configure_camera(namespaces=[
            'racecar_{}'.format(str(agent_index))
            for agent_index in range(len(arg_s3_bucket))
        ])

    agent_list = list()
    s3_bucket_dict = dict()
    s3_prefix_dict = dict()
    s3_writers = list()
    start_positions = get_start_positions(len(arg_s3_bucket))
    done_condition = utils.str_to_done_condition(
        rospy.get_param("DONE_CONDITION", any))
    park_positions = utils.pos_2d_str_to_list(
        rospy.get_param("PARK_POSITIONS", []))
    # if not pass in park positions for all done condition case, use default
    if not park_positions:
        park_positions = [DEFAULT_PARK_POSITION for _ in arg_s3_bucket]

    # tournament_worker: list of required S3 locations
    simtrace_s3_bucket_dict = dict()
    simtrace_s3_prefix_dict = dict()
    metrics_s3_bucket_dict = dict()
    metrics_s3_obect_key_dict = dict()
    mp4_s3_bucket_dict = dict()
    mp4_s3_object_prefix_dict = dict()

    for agent_index, s3_bucket_val in enumerate(arg_s3_bucket):
        agent_name = 'agent' if len(arg_s3_bucket) == 1 else 'agent_{}'.format(
            str(agent_index))
        racecar_name = 'racecar' if len(
            arg_s3_bucket) == 1 else 'racecar_{}'.format(str(agent_index))
        s3_bucket_dict[agent_name] = arg_s3_bucket[agent_index]
        s3_prefix_dict[agent_name] = arg_s3_prefix[agent_index]

        # tournament_worker: remap key with agent_name instead of agent_index for list of S3 locations.
        simtrace_s3_bucket_dict[agent_name] = simtrace_s3_bucket[agent_index]
        simtrace_s3_prefix_dict[agent_name] = simtrace_s3_object_prefix[
            agent_index]
        metrics_s3_bucket_dict[agent_name] = metrics_s3_buckets[agent_index]
        metrics_s3_obect_key_dict[agent_name] = metrics_s3_object_keys[
            agent_index]
        mp4_s3_bucket_dict[agent_name] = mp4_s3_bucket[agent_index]
        mp4_s3_object_prefix_dict[agent_name] = mp4_s3_object_prefix[
            agent_index]

        s3_client = SageS3Client(bucket=arg_s3_bucket[agent_index],
                                 s3_prefix=arg_s3_prefix[agent_index],
                                 aws_region=args.aws_region)

        # Load the model metadata
        if not os.path.exists(os.path.join(CUSTOM_FILES_PATH, agent_name)):
            os.makedirs(os.path.join(CUSTOM_FILES_PATH, agent_name))
        model_metadata_local_path = os.path.join(
            os.path.join(CUSTOM_FILES_PATH, agent_name), 'model_metadata.json')
        utils.load_model_metadata(
            s3_client,
            os.path.normpath("%s/model/model_metadata.json" %
                             arg_s3_prefix[agent_index]),
            model_metadata_local_path)
        # Handle backward compatibility
        _, _, version = parse_model_metadata(model_metadata_local_path)
        if float(version) < float(SIMAPP_VERSION) and \
        not utils.has_current_ckpnt_name(arg_s3_bucket[agent_index], arg_s3_prefix[agent_index], args.aws_region):
            utils.make_compatible(arg_s3_bucket[agent_index],
                                  arg_s3_prefix[agent_index], args.aws_region,
                                  SyncFiles.TRAINER_READY.value)

        # Select the optimal model
        utils.do_model_selection(s3_bucket=arg_s3_bucket[agent_index],
                                 s3_prefix=arg_s3_prefix[agent_index],
                                 region=args.aws_region)

        # Download hyperparameters from SageMaker
        if not os.path.exists(agent_name):
            os.makedirs(agent_name)
        hyperparameters_file_success = False
        hyperparams_s3_key = os.path.normpath(arg_s3_prefix[agent_index] +
                                              "/ip/hyperparameters.json")
        hyperparameters_file_success = s3_client.download_file(
            s3_key=hyperparams_s3_key,
            local_path=os.path.join(agent_name, "hyperparameters.json"))
        sm_hyperparams_dict = {}
        if hyperparameters_file_success:
            logger.info("Received Sagemaker hyperparameters successfully!")
            with open(os.path.join(agent_name,
                                   "hyperparameters.json")) as file:
                sm_hyperparams_dict = json.load(file)
        else:
            logger.info("SageMaker hyperparameters not found.")

        agent_config = {
            'model_metadata': model_metadata_local_path,
            ConfigParams.CAR_CTRL_CONFIG.value: {
                ConfigParams.LINK_NAME_LIST.value: [
                    link_name.replace('racecar', racecar_name)
                    for link_name in LINK_NAMES
                ],
                ConfigParams.VELOCITY_LIST.value: [
                    velocity_topic.replace('racecar', racecar_name)
                    for velocity_topic in VELOCITY_TOPICS
                ],
                ConfigParams.STEERING_LIST.value: [
                    steering_topic.replace('racecar', racecar_name)
                    for steering_topic in STEERING_TOPICS
                ],
                ConfigParams.CHANGE_START.value:
                utils.str2bool(rospy.get_param('CHANGE_START_POSITION',
                                               False)),
                ConfigParams.ALT_DIR.value:
                utils.str2bool(
                    rospy.get_param('ALTERNATE_DRIVING_DIRECTION', False)),
                ConfigParams.ACTION_SPACE_PATH.value:
                'custom_files/' + agent_name + '/model_metadata.json',
                ConfigParams.REWARD.value:
                reward_function,
                ConfigParams.AGENT_NAME.value:
                racecar_name,
                ConfigParams.VERSION.value:
                version,
                ConfigParams.NUMBER_OF_RESETS.value:
                args.number_of_resets,
                ConfigParams.PENALTY_SECONDS.value:
                args.penalty_seconds,
                ConfigParams.NUMBER_OF_TRIALS.value:
                args.number_of_trials,
                ConfigParams.IS_CONTINUOUS.value:
                args.is_continuous,
                ConfigParams.RACE_TYPE.value:
                args.race_type,
                ConfigParams.COLLISION_PENALTY.value:
                args.collision_penalty,
                ConfigParams.OFF_TRACK_PENALTY.value:
                args.off_track_penalty,
                ConfigParams.START_POSITION.value:
                start_positions[agent_index],
                ConfigParams.DONE_CONDITION.value:
                done_condition
            }
        }

        metrics_s3_config = {
            MetricsS3Keys.METRICS_BUCKET.value:
            metrics_s3_buckets[agent_index],
            MetricsS3Keys.METRICS_KEY.value:
            metrics_s3_object_keys[agent_index],
            MetricsS3Keys.ENDPOINT_URL.value:
            rospy.get_param('S3_ENDPOINT_URL', None),
            # Replaced rospy.get_param('AWS_REGION') to be equal to the argument being passed
            # or default argument set
            MetricsS3Keys.REGION.value:
            args.aws_region
        }
        aws_region = rospy.get_param('AWS_REGION', args.aws_region)
        s3_writer_job_info = []
        if simtrace_s3_bucket:
            s3_writer_job_info.append(
                IterationData(
                    'simtrace', simtrace_s3_bucket[agent_index],
                    simtrace_s3_object_prefix[agent_index], aws_region,
                    os.path.join(
                        ITERATION_DATA_LOCAL_FILE_PATH, agent_name,
                        IterationDataLocalFileNames.
                        SIM_TRACE_EVALUATION_LOCAL_FILE.value)))
        if mp4_s3_bucket:
            s3_writer_job_info.extend([
                IterationData(
                    'pip', mp4_s3_bucket[agent_index],
                    mp4_s3_object_prefix[agent_index], aws_region,
                    os.path.join(
                        ITERATION_DATA_LOCAL_FILE_PATH, agent_name,
                        IterationDataLocalFileNames.
                        CAMERA_PIP_MP4_VALIDATION_LOCAL_PATH.value)),
                IterationData(
                    '45degree', mp4_s3_bucket[agent_index],
                    mp4_s3_object_prefix[agent_index], aws_region,
                    os.path.join(
                        ITERATION_DATA_LOCAL_FILE_PATH, agent_name,
                        IterationDataLocalFileNames.
                        CAMERA_45DEGREE_MP4_VALIDATION_LOCAL_PATH.value)),
                IterationData(
                    'topview', mp4_s3_bucket[agent_index],
                    mp4_s3_object_prefix[agent_index], aws_region,
                    os.path.join(
                        ITERATION_DATA_LOCAL_FILE_PATH, agent_name,
                        IterationDataLocalFileNames.
                        CAMERA_TOPVIEW_MP4_VALIDATION_LOCAL_PATH.value))
            ])

        s3_writers.append(S3Writer(job_info=s3_writer_job_info))
        run_phase_subject = RunPhaseSubject()
        agent_list.append(
            create_rollout_agent(
                agent_config,
                EvalMetrics(agent_name, metrics_s3_config, args.is_continuous),
                run_phase_subject))
    agent_list.append(create_obstacles_agent())
    agent_list.append(create_bot_cars_agent())

    # ROS service to indicate all the robomaker markov packages are ready for consumption
    signal_robomaker_markov_package_ready()

    PhaseObserver('/agent/training_phase', run_phase_subject)
    enable_domain_randomization = utils.str2bool(
        rospy.get_param('ENABLE_DOMAIN_RANDOMIZATION', False))

    graph_manager, _ = get_graph_manager(
        hp_dict=sm_hyperparams_dict,
        agent_list=agent_list,
        run_phase_subject=run_phase_subject,
        enable_domain_randomization=enable_domain_randomization,
        done_condition=done_condition)

    ds_params_instance = S3BotoDataStoreParameters(
        aws_region=args.aws_region,
        bucket_names=s3_bucket_dict,
        base_checkpoint_dir=args.local_model_directory,
        s3_folders=s3_prefix_dict)

    graph_manager.data_store = S3BotoDataStore(params=ds_params_instance,
                                               graph_manager=graph_manager,
                                               ignore_lock=True)
    graph_manager.env_params.seed = 0

    task_parameters = TaskParameters()
    task_parameters.checkpoint_restore_path = args.local_model_directory

    tournament_worker(graph_manager=graph_manager,
                      number_of_trials=args.number_of_trials,
                      task_parameters=task_parameters,
                      s3_writers=s3_writers,
                      is_continuous=args.is_continuous,
                      park_positions=park_positions)

    # tournament_worker: write race report to local file.
    write_race_report(graph_manager,
                      model_s3_bucket_map=s3_bucket_dict,
                      model_s3_prefix_map=s3_prefix_dict,
                      metrics_s3_bucket_map=metrics_s3_bucket_dict,
                      metrics_s3_key_map=metrics_s3_obect_key_dict,
                      simtrace_s3_bucket_map=simtrace_s3_bucket_dict,
                      simtrace_s3_prefix_map=simtrace_s3_prefix_dict,
                      mp4_s3_bucket_map=mp4_s3_bucket_dict,
                      mp4_s3_prefix_map=mp4_s3_object_prefix_dict,
                      display_names=display_names)

    # tournament_worker: terminate tournament_race_node.
    terminate_tournament_race()