Roofline
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Posts
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Cache-Aware Matrix Multiplication: Loop Order, Tiles and the Register Block That Did the Work
Naive, interchanged, cache-tiled and register-tiled DGEMM in plain C, auto-vectorised by clang, measured for N = 256 to 1024 on an Apple-silicon core and placed on the roofline.
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The Roofline Model on a Laptop: Measuring the Bandwidth Slope, the FMA Ceiling and the Ridge
Arithmetic intensity and the bound P = min(π, βI), with the bandwidth roof and FMA ceilings measured in C on one core of an Apple-silicon laptop, and a kernel walked across the ridge.
