Date: Mon, 24 Jun 2019 16:22:23 +0200 From: magnum <john.magnum@...hmail.com> To: john-users@...ts.openwall.com Subject: Re: Disable specific SIMD features like AVX, AVX2, etc. On 2019-06-24 15:55, Jonathan A wrote: > I am aware of the option to run "./configure --disable-simd", but I > understand that this disables all SID features. Is it possible to disable > only specific features (specifically I'm interested in disabling all AVX > features: AVX, AVX2, AVX512F, AVX512BW). This will enable anything up to and including SSE-4.2 (but nothing beyond it - the auto probing is disabled): ./configure --enable-simd=sse4.2 Likewise, "--enable-simd=sse2" will enable SSE2 but nothing beyond it, and so on. See also README-DISTROS for an extremely brief crash course in how to make a fallback binary chain. magnum
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