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トップに関する質問Pytorchでnn.ModuleListで作成したモデルのtorchsummaryによる表示結果に不整合がある

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質問編集履歴

4

補足追記

2021/04/15 08:26

投稿

mikan_professor
mikan_professor

スコア28

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@@ -451,3 +451,87 @@
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  modelはGPUに乗せており、printでも確認できました。このエラーの理由も教えていただきたいです。
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+ -----------補足追加----------------
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+ 以下が全体のコードです。
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+ ModuleListからリストに変え、ZFnetを使ったものです。
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+ ```Python
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+ import 同様
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+ class AlexNet(nn.Module):
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+ //最初のコードと同様。文字数制限にて省略
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+ //self.layersをModuleListからListに変更
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+ self.layers = [
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+ self.layer1,
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+ self.layer2,
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+ self.layer3,
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+ self.layer4,
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+ self.layer5,
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+ self.layer6,
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+ self.layer7,
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+ self.layer8,
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+ ]
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+ def forward(self, x):
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+ 同様
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+ class ZFNet(AlexNet):
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+ 同様
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+ device = torch.device("cuda:0" if torch.cuda.is_available() else "cpu")
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+ net = ZFNet()
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+ net = net.to(device)
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+ torchsummary.summary(net, input_size=(3, 224, 224))
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+ ```

3

エラー詳細追記

2021/04/15 08:26

投稿

mikan_professor
mikan_professor

スコア28

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  ```bash
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+ Traceback (most recent call last):
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+ File "/home/〇〇/workspace/machineLearning/popularModel/alexNet.py", line 824, in <module>
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+ summary(net, input_size=(3, 224, 224))
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+ File "/home/〇〇/.local/share/virtualenvs/machineLearning-WvLHzLrB/lib/python3.8/site-packages/torchsummary/torchsummary.py", line 72, in summary
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+ model(*x)
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+ File "/home/〇〇/.local/share/virtualenvs/machineLearning-WvLHzLrB/lib/python3.8/site-packages/torch/nn/modules/module.py", line 889, in _call_impl
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+ result = self.forward(*input, **kwargs)
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+ File "/home/〇〇/workspace/machineLearning/popularModel/alexNet.py", line 161, in forward
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+ x = layer(x)
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+ File "/home/〇〇/.local/share/virtualenvs/machineLearning-WvLHzLrB/lib/python3.8/site-packages/torch/nn/modules/module.py", line 889, in _call_impl
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+ result = self.forward(*input, **kwargs)
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+ File "/home/〇〇/.local/share/virtualenvs/machineLearning-WvLHzLrB/lib/python3.8/site-packages/torch/nn/modules/container.py", line 119, in forward
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+ input = module(input)
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+ File "/home/〇〇/.local/share/virtualenvs/machineLearning-WvLHzLrB/lib/python3.8/site-packages/torch/nn/modules/module.py", line 889, in _call_impl
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+ result = self.forward(*input, **kwargs)
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+ File "/home/〇〇/.local/share/virtualenvs/machineLearning-WvLHzLrB/lib/python3.8/site-packages/torch/nn/modules/conv.py", line 399, in forward
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+ return self._conv_forward(input, self.weight, self.bias)
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+ File "/home/〇〇/.local/share/virtualenvs/machineLearning-WvLHzLrB/lib/python3.8/site-packages/torch/nn/modules/conv.py", line 395, in _conv_forward
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+ return F.conv2d(input, weight, bias, self.stride,
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  RuntimeError: Input type (torch.cuda.FloatTensor) and weight type (torch.FloatTensor) should be the same
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  ```

2

補足

2021/04/08 10:31

投稿

mikan_professor
mikan_professor

スコア28

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- ```zsh
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+ ```bash
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  ----------------------------------------------------------------
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  ----------------------------------------------------------------
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  ```
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+ ＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝補足＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝
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+ nn.ModuleListを通常のリストとした場合は正しく動いたのですが、以下のように新しいモデルを継承により作った場合に、エラーが発生しました。
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+ ```Python
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+ class ZFNet(AlexNet):
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+ def __init__(self, conv_channels_list=[96, 256, 384, 384, 256]):
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+ super(ZFNet, self).__init__()
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+ self.layer1 = nn.Sequential(
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+ nn.Conv2d(
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+ in_channels=3,
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+ out_channels=conv_channels_list[0],
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+ kernel_size=7,
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+ stride=2,
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+ padding=2
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+ ),
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+ nn.MaxPool2d(kernel_size=3, stride=2),
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+ nn.LocalResponseNorm(size=5, k=2),
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+ nn.ReLU(inplace=True)
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+ )
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+ ```
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+ ```bash
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+ RuntimeError: Input type (torch.cuda.FloatTensor) and weight type (torch.FloatTensor) should be the same
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+ ```
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+ modelはGPUに乗せており、printでも確認できました。このエラーの理由も教えていただきたいです。

1

誤字の訂正

2021/04/07 23:41

投稿

mikan_professor
mikan_professor

スコア28

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@@ -178,7 +178,7 @@
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- self.conv_layers = nn.ModuleList([
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+ self.layers = nn.ModuleList([
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  self.layer1,
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  def forward(self, x):
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- for layer in self.conv_layers:
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+ for layer in self.layers:
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  x = layer(x)
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