wehub-resource-sync
60 lines
2.0 KiB
Python
60 lines
2.0 KiB
Python
# Copyright 2024 NVIDIA CORPORATION & AFFILIATES
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# SPDX-License-Identifier: Apache-2.0
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import copy
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import torch.nn as nn
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__all__ = ["build_act", "get_act_name"]
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# register activation function here
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# name: module, kwargs with default values
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REGISTERED_ACT_DICT: dict[str, tuple[type, dict[str, any]]] = {
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"relu": (nn.ReLU, {"inplace": True}),
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"relu6": (nn.ReLU6, {"inplace": True}),
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"hswish": (nn.Hardswish, {"inplace": True}),
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"hsigmoid": (nn.Hardsigmoid, {"inplace": True}),
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"swish": (nn.SiLU, {"inplace": True}),
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"silu": (nn.SiLU, {"inplace": True}),
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"tanh": (nn.Tanh, {}),
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"sigmoid": (nn.Sigmoid, {}),
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"gelu": (nn.GELU, {"approximate": "tanh"}),
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"mish": (nn.Mish, {"inplace": True}),
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"identity": (nn.Identity, {}),
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}
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def build_act(name: str or None, **kwargs) -> nn.Module or None:
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if name in REGISTERED_ACT_DICT:
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act_cls, default_args = copy.deepcopy(REGISTERED_ACT_DICT[name])
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for key in default_args:
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if key in kwargs:
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default_args[key] = kwargs[key]
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return act_cls(**default_args)
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elif name is None or name.lower() == "none":
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return None
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else:
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raise ValueError(f"do not support: {name}")
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def get_act_name(act: nn.Module or None) -> str or None:
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if act is None:
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return None
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module2name = {}
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for key, config in REGISTERED_ACT_DICT.items():
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module2name[config[0].__name__] = key
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return module2name.get(type(act).__name__, "unknown")
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