Estimating Operational Intensity

The operational intensity introduced in the Roofline model -- operations per byte of DRAM traffic -- is a simple model that can be used to determine what architectures are the best match for a given computational kernel or, conversely, in what ways to optimize a kernel so it performs better on a given architecture. Operational intensity is not typically provided directly by performance tools but can be estimated from other readily available measurements.


Published November 12, 2017

Contributor Boyana Norris