compute.kernels.sumU32¶
Summary¶
compute.kernels.sumU32 computes the unsigned-integer sum of selected elements.
It is shorthand for reduceU32(input, "sum", opts).
The output is a one-scalar storage buffer.
Use this for count aggregation and integer totals.
It inherits reduceU32's count, output, encoder, ownership, and empty-input contracts; arithmetic wraps modulo 2³² and an empty selection produces 0.
Syntax¶
WasmGPU.compute.kernels.sumU32(input: StorageBuffer, opts?: ReduceOptions): StorageBuffer
const out = wgpu.compute.kernels.sumU32(input, opts);
Parameters¶
| Name | Type | Required | Description |
|---|---|---|---|
input |
StorageBuffer |
Yes | Source u32 data buffer. |
opts |
ReduceOptions |
No | Optional reduction execution settings. |
Returns¶
StorageBuffer - Buffer containing one u32 sum value.
Example¶
const canvas = document.querySelector("canvas");
const wgpu = await WasmGPU.create(canvas);
const input = wgpu.compute.createStorageBuffer({ data: new Uint32Array([1, 1, 2, 3]), copySrc: true });
const out = wgpu.compute.kernels.sumU32(input);
console.log(await wgpu.compute.readback.readScalarU32(out));