com.microsoft.BiasAdd

com.microsoft · ONNX Runtime contrib operator · contrib since_version 1

Description

Adds a 1-D bias (broadcast over the channel dimension) to input X, then adds the residual tensor skip elementwise. All three tensors share the same channel count C; X and skip have shape (N, S, C).

See the ONNX Runtime BiasAdd contrib-operator spec for the reference semantics.

Inputs

Outputs

Type constraints

Files

• metadata.json — kernel metadata (id, digests, provenance)
• manifest.json — the op contract (source of truth)
• test.json — correctness cases
• bench.json — benchmark + tuning cases
• bias-add.wgsl.jinja

Use with @huggingface/kernels

The loader derives every required output's shape and logical dtype from the manifest contract and this call. It then allocates the result tensors automatically.

The version: 1 option selects the published kernel contract; it is independent of any operator opset, contrib since_version, or model version.

Replace each *Data placeholder with a typed array containing the corresponding input data.

import { getKernel } from "@huggingface/kernels";

const kernel = await getKernel("webgpu-kernels/com.microsoft.BiasAdd", { version: 1 });
const { Y } = await kernel({
  X: { data: XData, shape: [1, 2, 4] },
  bias: { data: biasData, shape: [4] },
  skip: { data: skipData, shape: [1, 2, 4] },
});