SigmoidBackward

SigmoidBackward operation computes gradient for Sigmoid.

Operation Attributes

Attribute Name	Description	Value Type	Supported Values	Required or Optional
use_dst	If true, use dst of Sigmoid operation to calculate the gradient. Otherwise, use src.	bool	true (default), false	Optional

Execution Arguments

The inputs and outputs must be provided according to the below index order when constructing an operation.

Inputs

Index	Argument Name	Required or Optional
0	src / dst	Required
1	diff_dst	Required

Outputs

Index	Argument Name	Required or Optional
0	diff_src	Required

Supported Data Types

SigmoidBackward operation supports the following data type combinations.

Src / Dst	Diff_dst	Diff_src
f32	f32	f32
f16	f16	f16
bf16	bf16	bf16