def add_batch(self, batch: SampleBatchType) -> None:
"""Adds a batch to the appropriate policy's replay buffer.
Turns the batch into a MultiAgentBatch of the DEFAULT_POLICY_ID if
it is not a MultiAgentBatch. Subsequently adds the individual policy
batches to the storage.
Args:
batch: The batch to be added.
"""
# Make a copy so the replay buffer doesn't pin plasma memory.
batch = batch.copy()
batch = batch.as_multi_agent()
with self.add_batch_timer:
if self.replay_mode == ReplayMode.LOCKSTEP:
# Lockstep mode: Store under _ALL_POLICIES key (we will always
# only sample from all policies at the same time).
# This means storing a MultiAgentBatch to the underlying buffer
self.replay_buffers[_ALL_POLICIES].add_batch(batch)
self.last_added_batches[_ALL_POLICIES].append(batch)
else:
# Store independent SampleBatches
for policy_id, sample_batch in batch.policy_batches.items():
self.replay_buffers[policy_id].add_batch(sample_batch)
self.last_added_batches[policy_id].append(sample_batch)
self.num_added += batch.count
def add(self, batch: SampleBatchType) -> None:
"""Adds a batch to the appropriate policy's replay buffer.
Turns the batch into a MultiAgentBatch of the DEFAULT_POLICY_ID if
it is not a MultiAgentBatch. Subsequently adds the individual policy
batches to the storage.
Args:
batch: The batch to be added.
"""
# Make a copy so the replay buffer doesn't pin plasma memory.
batch = batch.copy()
# Handle everything as if multi-agent.
batch = batch.as_multi_agent()
with self.add_batch_timer:
# Lockstep mode: Store under _ALL_POLICIES key (we will always
# only sample from all policies at the same time).
if self.replay_mode == "lockstep":
# Note that prioritization is not supported in this mode.
for s in batch.timeslices(self.replay_sequence_length):
self.replay_buffers[_ALL_POLICIES].add(s, weight=None)
self.last_added_batches[_ALL_POLICIES].append(s)
else:
for policy_id, sample_batch in batch.policy_batches.items():
self._add_to_policy_buffer(policy_id, sample_batch)
self.last_added_batches[policy_id].append(sample_batch)
self._num_added += batch.count
def add(self, batch: SampleBatchType, **kwargs) -> None:
"""Adds a batch to the appropriate policy's replay buffer.
Turns the batch into a MultiAgentBatch of the DEFAULT_POLICY_ID if
it is not a MultiAgentBatch. Subsequently, adds the individual policy
batches to the storage.
Args:
batch : The batch to be added.
**kwargs: Forward compatibility kwargs.
"""
if batch is None:
if log_once("empty_batch_added_to_buffer"):
logger.info(
"A batch that is `None` was added to {}. This can be "
"normal at the beginning of execution but might "
"indicate an issue.".format(type(self).__name__))
return
# Make a copy so the replay buffer doesn't pin plasma memory.
batch = batch.copy()
# Handle everything as if multi-agent.
batch = batch.as_multi_agent()
with self.add_batch_timer:
if self.replay_mode == ReplayMode.LOCKSTEP:
# Lockstep mode: Store under _ALL_POLICIES key (we will always
# only sample from all policies at the same time).
# This means storing a MultiAgentBatch to the underlying buffer
self._add_to_underlying_buffer(_ALL_POLICIES, batch, **kwargs)
else:
# Store independent SampleBatches
for policy_id, sample_batch in batch.policy_batches.items():
self._add_to_underlying_buffer(policy_id, sample_batch,
**kwargs)
self._num_added += batch.count
def add_batch(self, batch: SampleBatchType) -> None:
# Make a copy so the replay buffer doesn't pin plasma memory.
batch = batch.copy()
# Handle everything as if multiagent
if isinstance(batch, SampleBatch):
batch = MultiAgentBatch({DEFAULT_POLICY_ID: batch}, batch.count)
with self.add_batch_timer:
# Lockstep mode: Store under _ALL_POLICIES key (we will always
# only sample from all policies at the same time).
if self.replay_mode == "lockstep":
# Note that prioritization is not supported in this mode.
for s in batch.timeslices(self.replay_sequence_length):
self.replay_buffers[_ALL_POLICIES].add(s, weight=None)
else:
for policy_id, sample_batch in batch.policy_batches.items():
if self.replay_sequence_length == 1:
timeslices = sample_batch.timeslices(1)
else:
timeslices = timeslice_along_seq_lens_with_overlap(
sample_batch=sample_batch,
zero_pad_max_seq_len=self.replay_sequence_length,
pre_overlap=self.replay_burn_in,
zero_init_states=self.replay_zero_init_states,
)
for time_slice in timeslices:
# If SampleBatch has prio-replay weights, average
# over these to use as a weight for the entire
# sequence.
if "weights" in time_slice:
weight = np.mean(time_slice["weights"])
else:
weight = None
self.replay_buffers[policy_id].add(time_slice,
weight=weight)
self.num_added += batch.count
def add(self, batch: SampleBatchType, **kwargs) -> None:
"""Adds a batch to the appropriate policy's replay buffer.
Turns the batch into a MultiAgentBatch of the DEFAULT_POLICY_ID if
it is not a MultiAgentBatch. Subsequently, adds the individual policy
batches to the storage.
Args:
batch : The batch to be added.
``**kwargs``: Forward compatibility kwargs.
"""
if batch is None:
if log_once("empty_batch_added_to_buffer"):
logger.info(
"A batch that is `None` was added to {}. This can be "
"normal at the beginning of execution but might "
"indicate an issue.".format(type(self).__name__))
return
# Make a copy so the replay buffer doesn't pin plasma memory.
batch = batch.copy()
# Handle everything as if multi-agent.
batch = batch.as_multi_agent()
with self.add_batch_timer:
pids_and_batches = self._maybe_split_into_policy_batches(batch)
for policy_id, sample_batch in pids_and_batches.items():
self._add_to_underlying_buffer(policy_id, sample_batch,
**kwargs)
self._num_added += batch.count
def add(self, batch: SampleBatchType, **kwargs) -> None:
"""Adds a batch to the appropriate policy's replay buffer.
Turns the batch into a MultiAgentBatch of the DEFAULT_POLICY_ID if
it is not a MultiAgentBatch. Subsequently, adds the individual policy
batches to the storage.
Args:
batch : The batch to be added.
**kwargs: Forward compatibility kwargs.
"""
# Make a copy so the replay buffer doesn't pin plasma memory.
batch = batch.copy()
# Handle everything as if multi-agent.
batch = batch.as_multi_agent()
with self.add_batch_timer:
if self.replay_mode == ReplayMode.LOCKSTEP:
# Lockstep mode: Store under _ALL_POLICIES key (we will always
# only sample from all policies at the same time).
# This means storing a MultiAgentBatch to the underlying buffer
self._add_to_underlying_buffer(_ALL_POLICIES, batch, **kwargs)
else:
# Store independent SampleBatches
for policy_id, sample_batch in batch.policy_batches.items():
self._add_to_underlying_buffer(policy_id, sample_batch,
**kwargs)
self._num_added += batch.count
def add_batch(self, batch: SampleBatchType) -> None:
"""Adds a batch to the appropriate policy's replay buffer.
Turns the batch into a MultiAgentBatch of the DEFAULT_POLICY_ID if
it is not a MultiAgentBatch. Subsequently adds the individual policy
batches to the storage.
Args:
batch: The batch to be added.
"""
# Make a copy so the replay buffer doesn't pin plasma memory.
batch = batch.copy()
batch = batch.as_multi_agent()
with self.add_batch_timer:
for policy_id, sample_batch in batch.policy_batches.items():
self.replay_buffers[policy_id].add_batch(sample_batch)
self.last_added_batches[policy_id].append(sample_batch)
self.num_added += batch.count
def add(self, batch: SampleBatchType, **kwargs) -> None:
"""Adds a batch to the appropriate policy's replay buffer.
Turns the batch into a MultiAgentBatch of the DEFAULT_POLICY_ID if
it is not a MultiAgentBatch. Subsequently, adds the individual policy
batches to the storage.
Args:
batch: The batch to be added.
**kwargs: Forward compatibility kwargs.
"""
# Make a copy so the replay buffer doesn't pin plasma memory.
batch = batch.copy()
# Handle everything as if multi-agent.
batch = batch.as_multi_agent()
kwargs = merge_dicts_with_warning(self.underlying_buffer_call_args,
kwargs)
# We need to split batches into timesteps, sequences or episodes
# here already to properly keep track of self.last_added_batches
# underlying buffers should not split up the batch any further
with self.add_batch_timer:
if self._storage_unit == StorageUnit.TIMESTEPS:
for policy_id, sample_batch in batch.policy_batches.items():
if self.replay_sequence_length == 1:
timeslices = sample_batch.timeslices(1)
else:
timeslices = timeslice_along_seq_lens_with_overlap(
sample_batch=sample_batch,
zero_pad_max_seq_len=self.replay_sequence_length,
pre_overlap=self.replay_burn_in,
zero_init_states=self.replay_zero_init_states,
)
for time_slice in timeslices:
self.replay_buffers[policy_id].add(
time_slice, **kwargs)
self.last_added_batches[policy_id].append(time_slice)
elif self._storage_unit == StorageUnit.SEQUENCES:
timestep_count = 0
for policy_id, sample_batch in batch.policy_batches.items():
for seq_len in sample_batch.get(SampleBatch.SEQ_LENS):
start_seq = timestep_count
end_seq = timestep_count + seq_len
self.replay_buffers[policy_id].add(
sample_batch[start_seq:end_seq], **kwargs)
self.last_added_batches[policy_id].append(
sample_batch[start_seq:end_seq])
timestep_count = end_seq
elif self._storage_unit == StorageUnit.EPISODES:
for policy_id, sample_batch in batch.policy_batches.items():
for eps in sample_batch.split_by_episode():
# Only add full episodes to the buffer
if (eps.get(SampleBatch.T)[0] == 0 and eps.get(
SampleBatch.DONES)[-1] == True # noqa E712
):
self.replay_buffers[policy_id].add(eps, **kwargs)
self.last_added_batches[policy_id].append(eps)
else:
if log_once("only_full_episodes"):
logger.info(
"This buffer uses episodes as a storage "
"unit and thus allows only full episodes "
"to be added to it. Some samples may be "
"dropped.")
self._num_added += batch.count
