triton-ascend-case-elemwise-broadcast-3d

What problem does it solve?

This skill targets performance improvements for cross-axis 3D broadcast by employing a two-stage kernel strategy, unlocking better vectorization and parallelism.

Core Features & Use Cases

• Two-stage kernel approach: first broadcast expansion and reshape to 2D, then a second kernel operates on the flattened dimension for high throughput.
• Performance uplift: especially effective when the last dimension is very small, improving utilization of hardware cores.
• Use Case: accelerate 3D broadcast operations on tensors with shapes like (B, H, W) and (1, H, 1).

Quick Start

Run the two-stage kernel workflow on a 3D broadcast task to observe improved throughput.