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85.3 GFlops: Optimizing FP32 Matrix Multiplication on a Single AMD Zen 3 Core

Hacker News Top · 2026-07-17 Cached

A systematic exploration of FP32 matrix multiplication optimization on AMD Zen 3, achieving 85.30 GFLOPS (63.5% of theoretical peak) using AVX2/FMA intrinsics, surpassing naive implementation by 56.5x and matching optimized libraries.

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