HardSigmoidBackward#

HardSigmoidBackward operation computes gradient for HardSigmoid. The formula is defined as follows:

\[\begin{split}\diffsrc = \begin{cases} \diffdst \cdot \alpha & \text{if}\ 0 < \alpha \src + \beta < 1 \\ 0 & \text{otherwise}\ \end{cases}\end{split}\]

Operation Attributes#

Attribute

Name

Description

Value Type

Supported

Values

Required or

Optional

alpha

\(\alpha\) in the formula.

f32

Arbitrary f32 value

Required

beta

\(\beta\) in the formula.

f32

Arbitrary f32 value

Required

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

Required

1

diff_dst

Required

Outputs#

Index

Argument Name

Required or Optional

0

diff_src

Required

Supported Data Types#

HardSigmoidBackward operation supports the following data type combinations.

Src

Diff_dst

Diff_src

f32

f32

f32

f16

f16

f16

bf16

bf16

bf16