def test_validates_single_number_error_buffer(self, samples_per_insert,
error_buffer, want):
if want:
with self.assertRaises(want):
rate_limiters.SampleToInsertRatio(samples_per_insert, 10, error_buffer)
else: # Should not raise any error.
rate_limiters.SampleToInsertRatio(samples_per_insert, 10, error_buffer)
def test_validates_explicit_range_error_buffer(self, min_size_to_sample,
samples_per_insert,
error_buffer, want):
if want:
with self.assertRaises(want):
rate_limiters.SampleToInsertRatio(samples_per_insert,
min_size_to_sample, error_buffer)
else: # Should not raise any error.
rate_limiters.SampleToInsertRatio(samples_per_insert, min_size_to_sample,
error_buffer)
def make_replay_tables(
self,
environment_spec: specs.EnvironmentSpec,
policy: actor_core_lib.FeedForwardPolicy,
) -> List[reverb.Table]:
"""Create tables to insert data into."""
del policy
# Create the rate limiter.
if self._config.samples_per_insert:
samples_per_insert_tolerance = (
self._config.samples_per_insert_tolerance_rate *
self._config.samples_per_insert)
error_buffer = self._config.min_replay_size * samples_per_insert_tolerance
limiter = rate_limiters.SampleToInsertRatio(
min_size_to_sample=self._config.min_replay_size,
samples_per_insert=self._config.samples_per_insert,
error_buffer=error_buffer)
else:
limiter = rate_limiters.MinSize(self._config.min_replay_size)
return [
reverb.Table(
name=self._config.replay_table_name,
sampler=reverb.selectors.Uniform(),
remover=reverb.selectors.Fifo(),
max_size=self._config.max_replay_size,
rate_limiter=limiter,
signature=adders_reverb.NStepTransitionAdder.signature(
environment_spec))
]
def make_replay_tables(
self,
environment_spec: specs.EnvironmentSpec,
policy: dqn_actor.EpsilonPolicy,
) -> List[reverb.Table]:
"""Creates reverb tables for the algorithm."""
del policy
samples_per_insert_tolerance = (
self._config.samples_per_insert_tolerance_rate *
self._config.samples_per_insert)
error_buffer = self._config.min_replay_size * samples_per_insert_tolerance
limiter = rate_limiters.SampleToInsertRatio(
min_size_to_sample=self._config.min_replay_size,
samples_per_insert=self._config.samples_per_insert,
error_buffer=error_buffer)
return [
reverb.Table(
name=self._config.replay_table_name,
sampler=reverb.selectors.Prioritized(
self._config.priority_exponent),
remover=reverb.selectors.Fifo(),
max_size=self._config.max_replay_size,
rate_limiter=limiter,
signature=adders_reverb.NStepTransitionAdder.signature(
environment_spec))
]
def make_replay_tables(
self,
environment_spec: specs.EnvironmentSpec) -> List[reverb.Table]:
samples_per_insert_tolerance = (
self._config.samples_per_insert_tolerance_rate *
self._config.samples_per_insert)
error_buffer = self._config.min_replay_size * samples_per_insert_tolerance
limiter = rate_limiters.SampleToInsertRatio(
min_size_to_sample=self._config.min_replay_size,
samples_per_insert=self._config.samples_per_insert,
error_buffer=error_buffer)
return [
reverb.Table(
name=self._config.replay_table_name,
sampler=reverb.selectors.Uniform(),
remover=reverb.selectors.Fifo(),
max_size=self._config.max_replay_size,
rate_limiter=limiter,
signature=adders_reverb.NStepTransitionAdder.signature(
environment_spec))
]
def make_replay_tables(
self,
environment_spec,
):
"""Create tables to insert data into."""
samples_per_insert_tolerance = (
self._config.samples_per_insert_tolerance_rate *
self._config.samples_per_insert)
min_replay_traj = self._config.min_replay_size // self._config.max_episode_steps # pylint: disable=line-too-long
max_replay_traj = self._config.max_replay_size // self._config.max_episode_steps # pylint: disable=line-too-long
error_buffer = min_replay_traj * samples_per_insert_tolerance
limiter = rate_limiters.SampleToInsertRatio(
min_size_to_sample=min_replay_traj,
samples_per_insert=self._config.samples_per_insert,
error_buffer=error_buffer)
return [
reverb.Table(name=self._config.replay_table_name,
sampler=reverb.selectors.Uniform(),
remover=reverb.selectors.Fifo(),
max_size=max_replay_traj,
rate_limiter=limiter,
signature=adders_reverb.EpisodeAdder.signature(
environment_spec, {})) # pylint: disable=line-too-long
]
def _make_rate_limiter_from_rate_limiter_info(
info) -> rate_limiters.RateLimiter:
return rate_limiters.SampleToInsertRatio(
samples_per_insert=info.samples_per_insert,
min_size_to_sample=info.min_size_to_sample,
error_buffer=(info.min_diff, info.max_diff))
class TableTest(parameterized.TestCase):
def _check_selector_proto(self, expected_selector, proto_msg):
if isinstance(expected_selector, item_selectors.Uniform):
self.assertTrue(proto_msg.HasField('uniform'))
elif isinstance(expected_selector, item_selectors.Prioritized):
self.assertTrue(proto_msg.HasField('prioritized'))
elif isinstance(expected_selector, pybind.HeapSelector):
self.assertTrue(proto_msg.HasField('heap'))
elif isinstance(expected_selector, item_selectors.Fifo):
self.assertTrue(proto_msg.HasField('fifo'))
elif isinstance(expected_selector, item_selectors.Lifo):
self.assertTrue(proto_msg.HasField('lifo'))
else:
raise ValueError(f'Unknown selector: {expected_selector}')
@parameterized.product(
sampler_fn=[
item_selectors.Uniform, lambda: item_selectors.Prioritized(1.),
item_selectors.MinHeap, item_selectors.MaxHeap,
item_selectors.Fifo, item_selectors.Lifo
],
remover_fn=[
item_selectors.Uniform, lambda: item_selectors.Prioritized(1.),
item_selectors.MinHeap, item_selectors.MaxHeap,
item_selectors.Fifo, item_selectors.Lifo
],
rate_limiter_fn=[
lambda: rate_limiters.MinSize(10), lambda: rate_limiters.Queue(10),
lambda: rate_limiters.SampleToInsertRatio(1.0, 10, 1.),
lambda: rate_limiters.Stack(10)
],
)
def test_table_info(self, sampler_fn, remover_fn, rate_limiter_fn):
sampler = sampler_fn()
remover = remover_fn()
rate_limiter = rate_limiter_fn()
table = server.Table(name='table',
sampler=sampler,
remover=remover,
max_size=100,
rate_limiter=rate_limiter)
table_info = table.info
self.assertEqual('table', table_info.name)
self.assertEqual(100, table_info.max_size)
self.assertEqual(0, table_info.current_size)
self.assertEqual(0, table_info.num_episodes)
self.assertEqual(0, table_info.num_deleted_episodes)
self.assertIsNone(table_info.signature)
self._check_selector_proto(sampler, table_info.sampler_options)
self._check_selector_proto(remover, table_info.remover_options)
@parameterized.named_parameters(
(
'scalar',
tf.TensorSpec([], tf.float32),
),
(
'image',
tf.TensorSpec([3, 64, 64], tf.uint8),
),
('nested', (tf.TensorSpec([], tf.int32), {
'a': tf.TensorSpec((1, 1), tf.float64)
})),
)
def test_table_info_signature(self, signature):
table = server.Table(name='table',
sampler=item_selectors.Fifo(),
remover=item_selectors.Fifo(),
max_size=100,
rate_limiter=rate_limiters.MinSize(10),
signature=signature)
self.assertEqual(signature, table.info.signature)
def test_replace(self):
table = server.Table(name='table',
sampler=item_selectors.Fifo(),
remover=item_selectors.Fifo(),
max_size=100,
rate_limiter=rate_limiters.MinSize(10))
rl_info = table.info.rate_limiter_info
new_rate_limiter = rate_limiters.RateLimiter(
samples_per_insert=rl_info.samples_per_insert,
min_size_to_sample=1,
min_diff=rl_info.min_diff,
max_diff=rl_info.max_diff)
new_table = table.replace(rate_limiter=new_rate_limiter)
self.assertEqual(new_table.name, table.name)
self.assertEqual(new_table.info.rate_limiter_info.min_size_to_sample,
1)
