diff options
Diffstat (limited to 'CDivTable.lua')
-rw-r--r-- | CDivTable.lua | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/CDivTable.lua b/CDivTable.lua new file mode 100644 index 0000000..f91d024 --- /dev/null +++ b/CDivTable.lua @@ -0,0 +1,21 @@ + +local CDivTable, parent = torch.class('nn.CDivTable', 'nn.Module') + +function CDivTable:__init() + parent.__init(self) + self.gradInput = {} +end + +function CDivTable:updateOutput(input) + self.output:resizeAs(input[1]):copy(input[1]) + self.output:cdiv(input[2]) + return self.output +end + +function CDivTable:updateGradInput(input, gradOutput) + self.gradInput[1] = self.gradInput[1] or torch.Tensor() + self.gradInput[2] = self.gradInput[2] or torch.Tensor() + self.gradInput[1]:resizeAs(input[1]):copy(gradOutput):cdiv(input[2]) + self.gradInput[2]:resizeAs(input[2]):zero():addcdiv(-1,self.gradInput[1],input[2]):cmul(input[1]) + return self.gradInput +end |