SoftMax

General

SoftMax operation applies the following formula on every element of \(\src\) tensor (the variable names follow the standard Naming Conventions):

\[dst_i = \frac{exp(src_i)}{\sum_{j=1}^{C} exp(src_j)}\]

where \(C\) is a size of tensor along axis dimension.

Operation attributes

Attribute Name

Description

Value Type

Supported Values

Required or Optional

axis

Represents the axis from which the SoftMax is calculated.

s64

Arbitrary s64 value ( 1 in default)

Optional

Execution arguments

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

Inputs

Index

Argument Name

Required or Optional

0

src

Required

Outputs

Index

Argument Name

Required or Optional

0

dst

Required

Supported data types

SoftMax operation supports the following data type combinations.

Src

Dst

f32

f32

bf16

bf16

f16

f16