triton-ascend-case-elemwise-concat

Fuse slice and concat operations within a Triton Ascend kernel.

6|1|Updated Apr 19, 2026
One-click install
npx skills add https://github.com/xchang1121/AutoResearch-CC-hook --skill triton-ascend-case-elemwise-concat
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: triton-ascend-case-elemwise-concat
Source: https://github.com/xchang1121/AutoResearch-CC-hook/tree/main/skills/triton-ascend/cases/triton-ascend-case-elemwise-concat
Command: npx skills add https://github.com/xchang1121/AutoResearch-CC-hook --skill triton-ascend-case-elemwise-concat

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

The Slice+Concat fusion case optimizes multi-input fusion kernels by loading only the required input slices and assembling the outputs through precise indexing, eliminating unnecessary intermediate storage and memory traffic.

Core Features & Use Cases

  • Precise slicing: loads only the needed portions of each input (e.g., slices like 128, 32, 48) to form the final output without materializing full tensors.
  • In-kernel concatenation: uses calculated output offsets to write inputs contiguously, avoiding cat-like operations and extra buffers.
  • Use Case: accelerates fusion kernels where several inputs must be sliced and concatenated within a single kernel, reducing bandwidth and latency.

Quick Start

Run the provided fused kernel with the specified input slices to validate the elementwise concat optimization.

Frequently Asked Questions about triton-ascend-case-elemwise-concat

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I fuse slice and concat operations in a Triton Ascend kernel?

Fusing slice and concat operations in a Triton Ascend kernel requires loading only the needed input slices and writing them contiguously using calculated output offsets, which eliminates the need for intermediate buffers and reduces memory traffic.

What is the best way to avoid intermediate buffers during multi-input tensor concatenation on Ascend hardware?

Avoiding intermediate buffers during multi-input tensor concatenation on Ascend hardware is achieved by performing in-kernel concatenation, using calculated output offsets to write sliced inputs directly into the final tensor without materializing full tensors.

How does in-kernel concatenation improve memory efficiency for elementwise fusion?

In-kernel concatenation improves memory efficiency by loading only specified input portions and assembling outputs through precise indexing, eliminating unnecessary intermediate storage and significantly reducing data movement bandwidth.

Can I selectively load input slices of varying sizes like 128, 32, and 48 within an Ascend kernel?

Yes, you can selectively load input slices of varying sizes such as 128, 32, and 48 within an Ascend kernel by using precise in-kernel loading mechanisms to fetch only the needed portions to form the final output.

Does Triton Ascend support offset-based writes for memory-efficient data handling?

Triton Ascend supports offset-based writes for memory-efficient data handling by using calculated output offsets to write inputs contiguously, avoiding cat-like operations and extra buffers in multi-input fusion scenarios.

Why does my multi-input fusion kernel experience high latency during tensor slicing and concatenation?

High latency during tensor slicing and concatenation in multi-input fusion kernels often occurs from unnecessary intermediate storage and data movement, which can be resolved by fusing slice and concat operations directly within the Ascend kernel.