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Replace reshape with flatten for mobilenetv2. #3462

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merged 2 commits into from
Feb 26, 2021
Merged

Replace reshape with flatten for mobilenetv2. #3462

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a202320
Replace reshape with flatten
jkparuchuri Feb 26, 2021
4ac294b
Merge branch 'master' into patch-1
datumbox Feb 26, 2021
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6 changes: 4 additions & 2 deletions torchvision/models/mobilenetv2.py
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
import torch
from torch import nn
from torch import Tensor
from .utils import load_state_dict_from_url
Expand Down Expand Up @@ -189,8 +190,9 @@ def _forward_impl(self, x: Tensor) -> Tensor:
# This exists since TorchScript doesn't support inheritance, so the superclass method
# (this one) needs to have a name other than `forward` that can be accessed in a subclass
x = self.features(x)
# Cannot use "squeeze" as batch-size can be 1 => must use reshape with x.shape[0]
x = nn.functional.adaptive_avg_pool2d(x, (1, 1)).reshape(x.shape[0], -1)
# Cannot use "squeeze" as batch-size can be 1
x = nn.functional.adaptive_avg_pool2d(x, (1, 1))
x = torch.flatten(x, 1)
x = self.classifier(x)
return x

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