On x86 you have the option of using 80 bit long doubles for the accumulator. Per... | Hacker News

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		gpderetta on May 26, 2024 \| parent \| context \| favorite \| on: Taming floating-point sums On x86 you have the option of using 80 bit long doubles for the accumulator. Performance is till quite decent. Not sure if rust supports them though.

clausecker on May 26, 2024 [–]

You don't get SIMD with this approach though, so it's about a quarter of the speed of using vectorized arithmetic (assuming an AVX vector of doubles).

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