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this post was submitted on 05 Nov 2024
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yes, as i said
(they don't make that comparison in the article)
so its not clear exactly how handwritten asm compares to intrinsics in this specific comparison. we can't assume their handwritten AVX-512 asm and instrinics AVX-512 will perform identically here, it may be better, or worse.
also worth noting they're discussing benchmarking of a specific function, so overall performance on executing a given set of commands may be quite different depending what can and can't be unrolled and in which order for different dependencies.