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paddlepaddle--paddle/python/paddle/quantization/imperative/ptq_config.py
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2026-07-13 12:40:42 +08:00

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Python

# Copyright (c) 2022 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.
import copy
from .ptq_quantizer import (
SUPPORT_ACT_QUANTIZERS,
SUPPORT_WT_QUANTIZERS,
KLQuantizer,
PerChannelAbsmaxQuantizer,
)
class PTQConfig:
"""
The PTQ config shows how to quantize the inputs and outputs.
"""
def __init__(self, activation_quantizer, weight_quantizer):
"""
Constructor.
Args:
activation_quantizer(BaseQuantizer): The activation quantizer.
It should be the instance of BaseQuantizer.
weight_quantizer(BaseQuantizer): The weight quantizer.
It should be the instance of BaseQuantizer.
"""
super().__init__()
assert isinstance(activation_quantizer, tuple(SUPPORT_ACT_QUANTIZERS))
assert isinstance(weight_quantizer, tuple(SUPPORT_WT_QUANTIZERS))
self.in_act_quantizer = copy.deepcopy(activation_quantizer)
self.out_act_quantizer = copy.deepcopy(activation_quantizer)
self.wt_quantizer = copy.deepcopy(weight_quantizer)
self.quant_hook_handle = None
# In order to wrap simulated layers, use in_act_quantizer
# to calculate the input thresholds for conv2d, linear and etc.
self.enable_in_act_quantizer = False
default_ptq_config = PTQConfig(KLQuantizer(), PerChannelAbsmaxQuantizer())