def test_reward_provider_save(tmp_path, optimizer):
OptimizerClass, HyperparametersClass = optimizer
trainer_settings = TrainerSettings()
trainer_settings.hyperparameters = HyperparametersClass()
trainer_settings.reward_signals = {
RewardSignalType.CURIOSITY: CuriositySettings(),
RewardSignalType.GAIL: GAILSettings(demo_path=DEMO_PATH),
RewardSignalType.RND: RNDSettings(),
}
policy = create_policy_mock(trainer_settings, use_discrete=False)
optimizer = OptimizerClass(policy, trainer_settings)
# save at path 1
path1 = os.path.join(tmp_path, "runid1")
model_saver = TorchModelSaver(trainer_settings, path1)
model_saver.register(policy)
model_saver.register(optimizer)
model_saver.initialize_or_load()
policy.set_step(2000)
model_saver.save_checkpoint("MockBrain", 2000)
# create a new optimizer and policy
optimizer2 = OptimizerClass(policy, trainer_settings)
policy2 = create_policy_mock(trainer_settings, use_discrete=False)
# load weights
model_saver2 = TorchModelSaver(trainer_settings, path1, load=True)
model_saver2.register(policy2)
model_saver2.register(optimizer2)
model_saver2.initialize_or_load() # This is to load the optimizers
# assert the models have the same weights
module_dict_1 = optimizer.get_modules()
module_dict_2 = optimizer2.get_modules()
assert "Module:GAIL" in module_dict_1
assert "Module:GAIL" in module_dict_2
assert "Module:Curiosity" in module_dict_1
assert "Module:Curiosity" in module_dict_2
assert "Module:RND-pred" in module_dict_1
assert "Module:RND-pred" in module_dict_2
assert "Module:RND-target" in module_dict_1
assert "Module:RND-target" in module_dict_2
for name, module1 in module_dict_1.items():
assert name in module_dict_2
module2 = module_dict_2[name]
if hasattr(module1, "parameters"):
for param1, param2 in zip(module1.parameters(),
module2.parameters()):
assert param1.data.ne(param2.data).sum() == 0
# Run some rewards
data = create_agent_buffer(policy.behavior_spec, 1)
for reward_name in optimizer.reward_signals.keys():
rp_1 = optimizer.reward_signals[reward_name]
rp_2 = optimizer2.reward_signals[reward_name]
assert np.array_equal(rp_1.evaluate(data), rp_2.evaluate(data))
def test_reward_decreases(behavior_spec: BehaviorSpec, seed: int) -> None:
np.random.seed(seed)
torch.manual_seed(seed)
rnd_settings = RNDSettings(32, 0.01)
rnd_rp = RNDRewardProvider(behavior_spec, rnd_settings)
buffer = create_agent_buffer(behavior_spec, 5)
rnd_rp.update(buffer)
reward_old = rnd_rp.evaluate(buffer)[0]
for _ in range(100):
rnd_rp.update(buffer)
reward_new = rnd_rp.evaluate(buffer)[0]
assert reward_new < reward_old
def test_load_different_reward_provider(caplog, tmp_path, optimizer):
OptimizerClass, HyperparametersClass = optimizer
trainer_settings = TrainerSettings()
trainer_settings.hyperparameters = HyperparametersClass()
trainer_settings.reward_signals = {
RewardSignalType.CURIOSITY: CuriositySettings(),
RewardSignalType.RND: RNDSettings(),
}
policy = create_policy_mock(trainer_settings, use_discrete=False)
optimizer = OptimizerClass(policy, trainer_settings)
# save at path 1
path1 = os.path.join(tmp_path, "runid1")
model_saver = TorchModelSaver(trainer_settings, path1)
model_saver.register(policy)
model_saver.register(optimizer)
model_saver.initialize_or_load()
assert len(optimizer.critic.value_heads.stream_names) == 2
policy.set_step(2000)
model_saver.save_checkpoint("MockBrain", 2000)
trainer_settings2 = TrainerSettings()
trainer_settings2.hyperparameters = HyperparametersClass()
trainer_settings2.reward_signals = {
RewardSignalType.GAIL: GAILSettings(demo_path=DEMO_PATH)
}
# create a new optimizer and policy
policy2 = create_policy_mock(trainer_settings2, use_discrete=False)
optimizer2 = OptimizerClass(policy2, trainer_settings2)
# load weights
model_saver2 = TorchModelSaver(trainer_settings2, path1, load=True)
model_saver2.register(policy2)
model_saver2.register(optimizer2)
assert len(optimizer2.critic.value_heads.stream_names) == 1
model_saver2.initialize_or_load() # This is to load the optimizers
messages = [
rec.message for rec in caplog.records if rec.levelno == WARNING
]
assert len(messages) > 0
def test_factory(behavior_spec: BehaviorSpec) -> None:
curiosity_settings = RNDSettings(32, 0.01)
curiosity_rp = create_reward_provider(RewardSignalType.RND, behavior_spec,
curiosity_settings)
assert curiosity_rp.name == "RND"
def test_construction(behavior_spec: BehaviorSpec) -> None:
curiosity_settings = RNDSettings(32, 0.01)
curiosity_settings.strength = 0.1
curiosity_rp = RNDRewardProvider(behavior_spec, curiosity_settings)
assert curiosity_rp.strength == 0.1
assert curiosity_rp.name == "RND"