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15 lines
499 B
15 lines
499 B
""" Normalization layers and wrappers
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"""
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import torch
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import torch.nn as nn
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import torch.nn.functional as F
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class GroupNorm(nn.GroupNorm):
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def __init__(self, num_channels, num_groups, eps=1e-5, affine=True):
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# NOTE num_channels is swapped to first arg for consistency in swapping norm layers with BN
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super().__init__(num_groups, num_channels, eps=eps, affine=affine)
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def forward(self, x):
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return F.group_norm(x, self.num_groups, self.weight, self.bias, self.eps)
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