Occupancy Math on the AMD MI355X: A From-First-Principles Guide

Software Development, Performance Engineering(indianspeedster.github.io)view on HackerNews

occupancyAMD MI355XCDNA4GPUkernelsresource limitersperformance engineeringlatency hidingILPTLP

Author: skidrow

Date: 6/17/2026

Article Summary:

A detailed guide to understanding occupancy math on the AMD MI355X (CDNA4) GPU, including the four resource limiters, how to compute occupancy by hand, and why maximizing occupancy is not always the goal.