BiasAdd

General

Add bias to channel dimension of input. This is a special Add with bias restricted to be 1-D. Broadcasting is supported.

\[\dst(n,c,h,w) = \src(n,c,h,w) + \bias(c)\]

Operation attributes

Attribute Name	Description	Value Type	Supported Values	Required or Optional
data_format	Controls how to interpret the shape of src and dst .	string	NCX , NXC (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
1	bias	Required

Note

bias is a 1D tensor to be added to src tensor. The size should be the same as size of channel dimension of src tensor.

Outputs

Index	Argument Name	Required or Optional
0	dst	Required

Supported data types

BiasAdd operation supports the following data type combinations.

Src	Bias	Dst
f32	f32	f32
bf16	bf16	bf16
f16	f16	f16

Implementation Notes

BiasAdd 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.