ai.onnx.Reshape

ai.onnx · standard ONNX operator · ONNX opset ≥ 14

Description

Reshapes the input tensor to a new shape while preserving the total number of elements. In this preallocated kernel ABI, the caller must resolve and validate the target shape—including -1, zero dimensions, and allowzero—before allocating reshaped; the kernel copies the elements and requires the input and output element counts to match.

See the ONNX Reshape spec for the reference semantics.

Inputs

Outputs

Attributes

Default values (overridable per request):

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
• datamove-elementwise-copy.wgsl.jinja
• datamove-flat-copy.wgsl.jinja

Use with @huggingface/kernels

The loader automatically allocates outputs whose metadata it can derive from the manifest contract and this call.

The explicit outputs entries provide shape and logical dtype metadata for the results listed below:

• reshaped

Each entry either requests an optional result or supplies metadata that cannot be inferred from the inputs.

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.Reshape", { version: 1 });
// Explicit destinations request optional results or supply metadata that cannot be inferred.
const { reshaped } = await kernel({
  data: { data: dataData, shape: [2] },
  shape: { data: shapeData, shape: [2] },
}, {
  outputs: { reshaped: { shape: [1, 2], dtype: "int8" } },
});