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12b2bc94d7
Test Plan: revert-hammer
Differential Revision:
D27909732 (5a09def9b0)
Original commit changeset: d8684b2403ab
fbshipit-source-id: d00d69fae4fa4ed58d9e97e70b27a06a0dcb39e4
69 lines
2.4 KiB
Python
69 lines
2.4 KiB
Python
import torch
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import torch.nn.quantized.functional
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import torch.nn.intrinsic as nni
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class BatchNorm2d(torch.nn.BatchNorm2d):
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r"""This is the quantized version of :class:`~torch.nn.BatchNorm2d`.
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"""
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def __init__(self, num_features, eps=1e-5, momentum=0.1):
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super(BatchNorm2d, self).__init__(num_features)
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self.eps = eps
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self.scale = 1.0
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self.zero_point = 0
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def forward(self, input):
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return torch.ops.quantized.batch_norm2d(input, self.weight, self.bias, self.running_mean,
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self.running_var, self.eps, self.scale, self.zero_point)
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def _get_name(self):
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return 'QuantizedBatchNorm2d'
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@classmethod
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def from_float(cls, mod):
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activation_post_process = mod.activation_post_process
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if type(mod) == nni.BNReLU2d:
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mod = mod[0]
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scale, zero_point = activation_post_process.calculate_qparams()
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new_mod = cls(mod.num_features, mod.eps)
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new_mod.weight = mod.weight
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new_mod.bias = mod.bias
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new_mod.running_mean = mod.running_mean
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new_mod.running_var = mod.running_var
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new_mod.scale = float(scale)
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new_mod.zero_point = int(zero_point)
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return new_mod
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# TODO: dedup with BatchNorm2d
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class BatchNorm3d(torch.nn.BatchNorm3d):
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r"""This is the quantized version of :class:`~torch.nn.BatchNorm3d`.
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"""
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def __init__(self, num_features, eps=1e-5, momentum=0.1):
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super(BatchNorm3d, self).__init__(num_features)
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self.eps = eps
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self.scale = 1.0
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self.zero_point = 0
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def forward(self, input):
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return torch.ops.quantized.batch_norm3d(input, self.weight, self.bias, self.running_mean,
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self.running_var, self.eps, self.scale, self.zero_point)
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def _get_name(self):
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return 'QuantizedBatchNorm3d'
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@classmethod
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def from_float(cls, mod):
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activation_post_process = mod.activation_post_process
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if type(mod) == nni.BNReLU3d:
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mod = mod[0]
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scale, zero_point = activation_post_process.calculate_qparams()
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new_mod = cls(mod.num_features, mod.eps)
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new_mod.weight = mod.weight
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new_mod.bias = mod.bias
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new_mod.running_mean = mod.running_mean
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new_mod.running_var = mod.running_var
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new_mod.scale = float(scale)
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new_mod.zero_point = int(zero_point)
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return new_mod
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