ai.onnx.PRelu

ai.onnx · standard ONNX operator · ONNX opset ≥ 16

Description

Applies the parametric ReLU function elementwise: f(x) = x for x >= 0 and f(x) = slope * x for x < 0. The slope tensor may be smaller than X and is broadcast unidirectionally to match X.

See the ONNX PRelu 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
• prelu-vec4.wgsl.jinja
• prelu.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/ai.onnx.PRelu", { version: 1 });
const { y } = await kernel({
  x: { data: xData, shape: [3, 1, 1, 1] },
  slope: { data: slopeData, shape: [1, 1, 1] },
});