wehub-resource-sync
86 lines
2.8 KiB
Python
86 lines
2.8 KiB
Python
# Copyright (c) 2024 PaddlePaddle Authors. All Rights Reserved.
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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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import sys
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import unittest
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from dygraph_to_static_utils import Dy2StTestBase
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import paddle
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from paddle import nn
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class MyConv2D(nn.Layer):
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def __init__(self, in_channels, out_channels, kernel_size, stride, padding):
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super().__init__()
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self.inner_conv = nn.Conv2D(
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in_channels=in_channels,
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out_channels=out_channels,
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kernel_size=kernel_size,
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stride=stride,
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padding=padding,
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)
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def forward(self, x):
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return self.inner_conv(x)
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class ExampleCNN(nn.Layer):
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def __init__(self):
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super().__init__()
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self.conv1 = MyConv2D(
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in_channels=3, out_channels=64, kernel_size=3, stride=1, padding=1
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)
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self.pool = nn.MaxPool2D(kernel_size=2, stride=2, padding=0)
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self.conv2 = nn.Conv2D(
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in_channels=64, out_channels=128, kernel_size=3, stride=1, padding=1
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)
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self.conv3 = nn.Conv2D(
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in_channels=128,
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out_channels=256,
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kernel_size=3,
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stride=1,
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padding=1,
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)
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self.fc1 = nn.Linear(256 * 28 * 28, 10)
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self.relu = nn.ReLU()
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def forward(self, x):
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x = self.pool(self.relu(self.conv1(x)))
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x = self.pool(self.relu(self.conv2(x)))
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x = self.pool(self.relu(self.conv3(x)))
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x = paddle.flatten(x, start_axis=1)
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x = self.fc1(x)
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return x
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class TestCircularReference(Dy2StTestBase):
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def test_circular_reference(self):
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model = ExampleCNN()
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model_ref_before_to_static = sys.getrefcount(model)
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inner_model_ref_before_to_static = sys.getrefcount(model.conv1)
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paddle.jit.to_static(model)
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model_ref_after_to_static = sys.getrefcount(model)
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inner_model_ref_after_to_static = sys.getrefcount(model.conv1)
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# NOTE(SigureMo): The reference count of `model` must be the same before and after `to_static`.
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# Otherwise, it may cause memory leak.
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self.assertEqual(model_ref_before_to_static, model_ref_after_to_static)
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self.assertEqual(
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inner_model_ref_before_to_static, inner_model_ref_after_to_static
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)
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if __name__ == '__main__':
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unittest.main()
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