def test_integration(self):
env = catch.Catch()
action_spec = env.action_spec()
num_actions = action_spec.num_values
obs_spec = env.observation_spec()
agent = agent_lib.Agent(
num_actions=num_actions,
obs_spec=obs_spec,
net_factory=haiku_nets.CatchNet,
)
unroll_length = 20
learner = learner_lib.Learner(
agent=agent,
rng_key=jax.random.PRNGKey(42),
opt=optix.sgd(1e-2),
batch_size=1,
discount_factor=0.99,
frames_per_iter=unroll_length,
)
actor = actor_lib.Actor(
agent=agent,
env=env,
learner=learner,
unroll_length=unroll_length,
)
frame_count, params = actor.pull_params()
actor.unroll_and_push(frame_count=frame_count, params=params)
learner.run(max_iterations=1)
def main(_):
# A thunk that builds a new environment.
# Substitute your environment here!
build_env = catch.Catch
# Construct the agent. We need a sample environment for its spec.
env_for_spec = build_env()
num_actions = env_for_spec.action_spec().num_values
agent = agent_lib.Agent(num_actions, env_for_spec.observation_spec(),
haiku_nets.CatchNet)
# Construct the optimizer.
max_updates = MAX_ENV_FRAMES / FRAMES_PER_ITER
opt = optix.rmsprop(1e-1, decay=0.99, eps=0.1)
# Construct the learner.
learner = learner_lib.Learner(
agent,
jax.random.PRNGKey(428),
opt,
BATCH_SIZE,
DISCOUNT_FACTOR,
FRAMES_PER_ITER,
max_abs_reward=1.,
logger=util.AbslLogger(), # Provide your own logger here.
)
# Construct the actors on different threads.
# stop_signal in a list so the reference is shared.
actor_threads = []
stop_signal = [False]
for i in range(NUM_ACTORS):
actor = actor_lib.Actor(
agent,
build_env(),
UNROLL_LENGTH,
learner,
rng_seed=i,
logger=util.AbslLogger(), # Provide your own logger here.
)
args = (actor, stop_signal)
actor_threads.append(threading.Thread(target=run_actor, args=args))
# Start the actors and learner.
for t in actor_threads:
t.start()
learner.run(int(max_updates))
# Stop.
stop_signal[0] = True
for t in actor_threads:
t.join()
def test_sync_params(self):
mock_learner = mock.MagicMock()
frame_count = 428
params = self.initial_params
mock_learner.params_for_actor.return_value = frame_count, params
traj_len = 10
actor = actor_lib.Actor(
agent=self.agent,
env=self.env,
learner=mock_learner,
unroll_length=traj_len,
)
received_frame_count, received_params = actor.pull_params()
self.assertEqual(received_frame_count, frame_count)
tree.assert_same_structure(received_params, params)
tree.map_structure(np.testing.assert_array_almost_equal,
received_params, params)
def test_unroll(self):
mock_learner = mock.MagicMock()
traj_len = 10
actor = actor_lib.Actor(
agent=self.agent,
env=self.env,
learner=mock_learner,
unroll_length=traj_len,
)
self.key, subkey = jax.random.split(self.key)
act_out = actor.unroll(rng_key=subkey,
frame_count=0,
params=self.initial_params,
unroll_length=traj_len)
self.assertIsInstance(act_out, util.Transition)
self.assertIsInstance(act_out.timestep, dm_env.TimeStep)
self.assertLen(act_out.timestep.reward.shape, 1)
self.assertEqual(act_out.timestep.reward.shape, (traj_len + 1, ))
self.assertLen(act_out.timestep.discount.shape, 1)
self.assertEqual(act_out.timestep.discount.shape, (traj_len + 1, ))
self.assertLen(act_out.timestep.step_type.shape, 1)
self.assertEqual(act_out.timestep.step_type.shape, (traj_len + 1, ))
self.assertLen(act_out.timestep.observation.shape, 3)
self.assertEqual(act_out.timestep.observation.shape,
(traj_len + 1, ) + self.obs_spec.shape)
self.assertIsInstance(act_out.agent_out, agent_lib.AgentOutput)
self.assertLen(act_out.agent_out.action.shape, 1)
self.assertEqual(act_out.agent_out.action.shape, (traj_len + 1, ))
self.assertLen(act_out.agent_out.policy_logits.shape, 2)
self.assertEqual(act_out.agent_out.policy_logits.shape,
(traj_len + 1, self.num_actions))
self.assertLen(act_out.agent_out.values.shape, 1)
self.assertEqual(act_out.agent_out.values.shape, (traj_len + 1, ))
self.assertEqual(act_out.agent_state.shape, (traj_len + 1, ))
def test_unroll_and_push(self):
traj_len = 3
mock_learner = mock.create_autospec(learner_lib.Learner, instance=True)
actor = actor_lib.Actor(
agent=self.agent,
env=self.env,
learner=mock_learner,
unroll_length=traj_len,
)
actor.unroll_and_push(0, self.initial_params)
mock_learner.enqueue_traj.assert_called_once()
act_out = mock_learner.enqueue_traj.call_args[0][0]
self.assertIsInstance(act_out, util.Transition)
self.assertIsInstance(act_out.timestep, dm_env.TimeStep)
self.assertLen(act_out.timestep.reward.shape, 1)
self.assertEqual(act_out.timestep.reward.shape, (traj_len + 1, ))
self.assertLen(act_out.timestep.discount.shape, 1)
self.assertEqual(act_out.timestep.discount.shape, (traj_len + 1, ))
self.assertLen(act_out.timestep.step_type.shape, 1)
self.assertEqual(act_out.timestep.step_type.shape, (traj_len + 1, ))
self.assertLen(act_out.timestep.observation.shape, 3)
self.assertEqual(act_out.timestep.observation.shape,
(traj_len + 1, ) + self.obs_spec.shape)
self.assertIsInstance(act_out.agent_out, agent_lib.AgentOutput)
self.assertLen(act_out.agent_out.action.shape, 1)
self.assertEqual(act_out.agent_out.action.shape, (traj_len + 1, ))
self.assertLen(act_out.agent_out.policy_logits.shape, 2)
self.assertEqual(act_out.agent_out.policy_logits.shape,
(traj_len + 1, self.num_actions))
self.assertLen(act_out.agent_out.values.shape, 1)
self.assertEqual(act_out.agent_out.values.shape, (traj_len + 1, ))
self.assertEqual(act_out.agent_state.shape, (traj_len + 1, ))