PhastFT

This is quite amazing. Fearless SIMD is what finally allowed my FFT crate, PhastFT, to run on stable Rust [0]. PhastFT previously depended on Rust’s std::simd (as well as multiversion), which still requires nightly [1]. One of the main contributors to v1.0 of fearless_simd started out by helping me evaluate portable SIMD crates for PhastFT. Once we landed on fearless_simd, he ported PhastFT from std::simd to fearless_simd. We did find that more functionality was needed than fearless_simd offered at the time. So, he started contributing significantly to fearless_simd. It’s really rewarding to see how working on a hobby open source project can help improve the Rust ecosystem. [0] https://github.com/smu160/PhastFT [1] https://doc.rust-lang.org/std/simd/index.html

Hi, One of the authors of PhastFT here. Thank you for your interest. We went out of our way to configure FFTW for AVX-512. The Rust bindings don't do it, but the FFTW itself in the benchmark does. It's worth noting that with FFTW you have to choose between building it for your CPU and making it non-portable, or targeting the lowest common denominator of CPU features so that it runs everywhere but much slower. Meanwhile PhastFT detects the available CPU features at runtime, and will utilize the fastest CPU features without sacrificing portability. Lastly, we are currently working on support for interleaved format [1]. That should ship in the next release. [1] https://github.com/QuState/PhastFT/pull/27