58 lines
2.1 KiB
Python
58 lines
2.1 KiB
Python
|
import numpy as np
|
||
|
|
from typing import Any
|
||
|
|
|
||
|
|
from tianshou.data import ReplayBuffer, ReplayBufferManager
|
||
|
|
from tianshou.data import PrioritizedReplayBuffer, PrioritizedReplayBufferManager
|
||
|
|
|
||
|
|
|
||
|
|
class VectorReplayBuffer(ReplayBufferManager):
|
||
|
|
"""VectorReplayBuffer contains n ReplayBuffer with the same size.
|
||
|
|
|
||
|
|
It is used for storing transition from different environments yet keeping the order
|
||
|
|
of time.
|
||
|
|
|
||
|
|
:param int total_size: the total size of VectorReplayBuffer.
|
||
|
|
:param int buffer_num: the number of ReplayBuffer it uses, which are under the same
|
||
|
|
configuration.
|
||
|
|
|
||
|
|
Other input arguments (stack_num/ignore_obs_next/save_only_last_obs/sample_avail)
|
||
|
|
are the same as :class:`~tianshou.data.ReplayBuffer`.
|
||
|
|
|
||
|
|
.. seealso::
|
||
|
|
|
||
|
|
Please refer to :class:`~tianshou.data.ReplayBuffer` for other APIs' usage.
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __init__(self, total_size: int, buffer_num: int, **kwargs: Any) -> None:
|
||
|
|
assert buffer_num > 0
|
||
|
|
size = int(np.ceil(total_size / buffer_num))
|
||
|
|
buffer_list = [ReplayBuffer(size, **kwargs) for _ in range(buffer_num)]
|
||
|
|
super().__init__(buffer_list)
|
||
|
|
|
||
|
|
|
||
|
|
class PrioritizedVectorReplayBuffer(PrioritizedReplayBufferManager):
|
||
|
|
"""PrioritizedVectorReplayBuffer contains n PrioritizedReplayBuffer with same size.
|
||
|
|
|
||
|
|
It is used for storing transition from different environments yet keeping the order
|
||
|
|
of time.
|
||
|
|
|
||
|
|
:param int total_size: the total size of PrioritizedVectorReplayBuffer.
|
||
|
|
:param int buffer_num: the number of PrioritizedReplayBuffer it uses, which are
|
||
|
|
under the same configuration.
|
||
|
|
|
||
|
|
Other input arguments (alpha/beta/stack_num/ignore_obs_next/save_only_last_obs/
|
||
|
|
sample_avail) are the same as :class:`~tianshou.data.PrioritizedReplayBuffer`.
|
||
|
|
|
||
|
|
.. seealso::
|
||
|
|
|
||
|
|
Please refer to :class:`~tianshou.data.ReplayBuffer` for other APIs' usage.
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __init__(self, total_size: int, buffer_num: int, **kwargs: Any) -> None:
|
||
|
|
assert buffer_num > 0
|
||
|
|
size = int(np.ceil(total_size / buffer_num))
|
||
|
|
buffer_list = [
|
||
|
|
PrioritizedReplayBuffer(size, **kwargs) for _ in range(buffer_num)
|
||
|
|
]
|
||
|
|
super().__init__(buffer_list)
|