捷徑

conv2d

class torch.ao.nn.quantized.functional.conv2d(input, weight, bias, stride=1, padding=0, dilation=1, groups=1, padding_mode='zeros', scale=1.0, zero_point=0, dtype=torch.quint8)[source][source]

對由多個輸入平面組成的量化 2D 輸入應用 2D 卷積。

詳情及輸出形狀請參閱 Conv2d

參數
  • input – 形狀為 (minibatch,in_channels,iH,iW)(\text{minibatch} , \text{in\_channels} , iH , iW) 的量化輸入張量

  • weight – 形狀為 (out_channels,in_channelsgroups,kH,kW)(\text{out\_channels} , \frac{\text{in\_channels}}{\text{groups}} , kH , kW) 的量化濾波器

  • bias – 形狀為 (out_channels)(\text{out\_channels})非量化偏差張量。張量類型必須是 torch.float

  • stride – 卷積核的步幅。可以是單個數字或元組 (sH, sW)。預設值:1

  • padding – 輸入兩側的隱式填充。可以是單個數字或元組 (padH, padW)。預設值:0

  • dilation – 卷積核元素之間的間距。可以是單個數字或元組 (dH, dW)。預設值:1

  • groups – 將輸入分成群組,in_channels\text{in\_channels} 應可被群組數整除。預設值:1

  • padding_mode – 要使用的填充模式。目前,量化卷積僅支援“zeros”。預設值:“zeros”

  • scale – 輸出的量化比例。預設值:1.0

  • zero_point – 輸出的量化零點。預設值:0

  • dtype – 要使用的量化資料類型。預設值:torch.quint8

範例

>>> from torch.ao.nn.quantized import functional as qF
>>> filters = torch.randn(8, 4, 3, 3, dtype=torch.float)
>>> inputs = torch.randn(1, 4, 5, 5, dtype=torch.float)
>>> bias = torch.randn(8, dtype=torch.float)
>>>
>>> scale, zero_point = 1.0, 0
>>> dtype_inputs = torch.quint8
>>> dtype_filters = torch.qint8
>>>
>>> q_filters = torch.quantize_per_tensor(filters, scale, zero_point, dtype_filters)
>>> q_inputs = torch.quantize_per_tensor(inputs, scale, zero_point, dtype_inputs)
>>> qF.conv2d(q_inputs, q_filters, bias, padding=1, scale=scale, zero_point=zero_point)

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