WeHub Mirror
65 lines
2.1 KiB
Python
65 lines
2.1 KiB
Python
# Copyright (c) 2026 PaddlePaddle Authors. All Rights Reserved.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
from __future__ import annotations
|
|
|
|
import warnings
|
|
from typing import TYPE_CHECKING
|
|
|
|
from paddle.optimizer import AdamW as PaddleAdamW
|
|
|
|
if TYPE_CHECKING:
|
|
from collections.abc import Sequence
|
|
|
|
from paddle import Tensor
|
|
from paddle.optimizer.adam import _AdamParameterConfig
|
|
|
|
|
|
class AdamW(PaddleAdamW):
|
|
def __init__(
|
|
self,
|
|
params: Sequence[Tensor] | Sequence[_AdamParameterConfig] | None,
|
|
lr: float | Tensor = 1e-3,
|
|
betas: tuple[float | Tensor, float | Tensor] = (0.9, 0.999),
|
|
eps: float = 1e-8,
|
|
weight_decay: float = 1e-2,
|
|
amsgrad: bool = False,
|
|
*,
|
|
maximize: bool = False,
|
|
foreach: bool | None = None,
|
|
capturable: bool = False,
|
|
differentiable: bool = False,
|
|
fused: bool | None = None,
|
|
) -> None:
|
|
if (
|
|
foreach is not None
|
|
or capturable is True
|
|
or differentiable is True
|
|
or fused is not None
|
|
):
|
|
warnings.warn(
|
|
"foreach, capturable, differentiable, fused are currently not supported in AdamW and will be ignored. "
|
|
"The parameters are reserved for future implementation."
|
|
)
|
|
super().__init__(
|
|
learning_rate=lr,
|
|
beta1=betas[0],
|
|
beta2=betas[1],
|
|
epsilon=eps,
|
|
parameters=params,
|
|
weight_decay=weight_decay,
|
|
amsgrad=amsgrad,
|
|
maximize=maximize,
|
|
)
|