C simd-intrinsic Projects

simde

7 2,171 9.1 C

Implementations of SIMD instruction sets for systems which don't natively support them.

Project mention: The Case of the Missing SIMD Code | news.ycombinator.com | 2023-06-08

I was curious about these libraries a few weeks ago and did some searching. Is there one that's got a clearly dominating set of users or contributors?
I don't know what a good way to compare these might be, other than perhaps activity/contributor count.
[1] https://github.com/simd-everywhere/simde
[2] https://github.com/ermig1979/Simd
[3] https://github.com/google/highway
[4] https://gitlab.com/libeigen/eigen
[5] https://github.com/shibatch/sleef

simd_utils

1 80 6.6 C

A header only library implementing common mathematical functions using SIMD intrinsics
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NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).