[GitHub] [incubator-mxnet] ngunauj opened a new issue #15665: syncbatchnorm0_gamma' has not been initialized yet because initialization was deferred

[GitBox <gi...@apache.org>]

ngunauj opened a new issue #15665: syncbatchnorm0_gamma' has not been initialized yet because initialization was deferred
URL: https://github.com/apache/incubator-mxnet/issues/15665
 
 
   The part of forward..
   ```
       def forward(self, x):
           x = self.conv1(x)
           x = self.bn1(x)
           x = self.relu(x)
           x = self.conv2(x)
           x = self.bn2(x)
           x = self.relu(x)
   ```
   The part of define..
   ```
           self.conv1 = nn.Conv2D(
               channels=64,
               kernel_size=3,
               strides=2,
               padding=1,
               in_channels=3,
               use_bias=False)
           self.bn1 = BatchNorm2d(in_channels=64, momentum=BN_MOMENTUM)
           self.conv2 = nn.Conv2D(
               channels=64,
               kernel_size=3,
               strides=2,
               padding=1,
               in_channels=64,
               use_bias=False)
           self.bn2 = BatchNorm2d(in_channels=64, momentum=BN_MOMENTUM)
           self.relu = nn.Activation('relu')
   ```
   
   the BatchNorm2d is
   ```
   from mxnet.gluon.contrib.nn import SyncBatchNorm
   BatchNorm2d = functools.partial(SyncBatchNorm, num_devices=4)
   ```
   when run the cod, the error is `syncbatchnorm0_gamma' has not been initialized yet because initialization was deferred`.
   when i change the SyncBatchNorm to BatchNorm is ok....
   

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