Elu

General

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

\[\begin{split}dst = \begin{cases} \alpha(e^{src} - 1) & \text{if}\ src < 0 \\ src & \text{if}\ src \ge 0 \end{cases}\end{split}\]

Operation attributes

Attribute Name	Description	Value Type	Supported Values	Required or Optional
alpha	Scale for the negative factor.	f32	Arbitrary non-negative f32 value	Required

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

Elu operation supports the following data type combinations.

Src	Dst
f32	f32
f16	f16
bf16	bf16

Implementation Notes

Elu supports in-place operations, meaning that src can be used as both input and output (dst). In case of in-place operation, the original src data will be overwritten. Use in-place operations whenever possible for performance.