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2026-07-13 12:40:42 +08:00

100 lines
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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 os
import tempfile
import unittest
import numpy as np
from dygraph_to_static_utils import (
Dy2StTestBase,
)
import paddle
def forward_post_hook1(layer, input, output):
return output + output
def forward_pre_hook1(layer, input):
input_return = (input[0] * 2,)
return input_return
class SimpleNet(paddle.nn.Layer):
def __init__(
self,
):
super().__init__()
self.fc1 = paddle.nn.Linear(10, 10)
# sublayer1 register post hook
self.fc1.register_forward_post_hook(forward_post_hook1)
self.fc2 = paddle.nn.Linear(10, 10)
# sublayer2 register pre hook
self.fc2.register_forward_pre_hook(forward_pre_hook1)
# register pre/post hook
self.register_forward_pre_hook(forward_pre_hook1)
self.register_forward_post_hook(forward_post_hook1)
def forward(self, x):
x = self.fc1(x)
x = self.fc2(x)
out = paddle.mean(x)
return out
class TestNestLayerHook(Dy2StTestBase):
def setUp(self):
paddle.seed(2022)
self.x = paddle.randn([4, 10])
self.temp_dir = tempfile.TemporaryDirectory()
self.path = os.path.join(self.temp_dir.name, 'net_hook')
def tearDown(self):
self.temp_dir.cleanup()
def train_net(self, to_static=False):
paddle.seed(2022)
net = SimpleNet()
if to_static:
net = paddle.jit.to_static(net)
out = net(self.x)
paddle.jit.save(net, self.path, input_spec=[self.x])
return float(out)
def load_train(self):
net = paddle.jit.load(self.path)
out = net(self.x)
return float(out)
def test_hook(self):
dy_out = self.train_net(to_static=False)
st_out = self.train_net(to_static=True)
np.testing.assert_allclose(
st_out,
dy_out,
rtol=1e-05,
err_msg=f'dygraph_res is {dy_out}\nstatic_res is {st_out}',
)
if __name__ == "__main__":
unittest.main()