On Sun, May 18, 2025 at 9:40 AM Jerome Kieffer <jerome.kief...@esrf.fr> wrote:
> Hi, > > First I would like to highlight that "X86_V2" is very specific to the > implementation in numpy, basically this implies the support of all 128 > bits SIMD extensions, i.e. SSE1,2,3&4, but does apparenty not requires > any 256bit SIMD (AVX). > It isn't specific to NumPy. These are the psABI levels ( https://gitlab.com/x86-psABIs/x86-64-ABI), which is the closest thing there is to a standard for SIMD instruction sets. Here are some examples of Linux distros moving to x86-64-v2: - Fedora 42: https://fedoraproject.org/wiki/Changes/Optimized_Binaries_for_the_AMD64_Architecture_v2 - RHEL 9: https://developers.redhat.com/blog/2021/01/05/building-red-hat-enterprise-linux-9-for-the-x86-64-v2-microarchitecture-level# Cheers, Ralf
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