Date: Wed, 7 Sep 2016 23:14:47 +0200 From: Lukas Odzioba <lukas.odzioba@...il.com> To: john-dev@...ts.openwall.com Subject: Re: Intel KNL test machine 2016-09-07 15:25 GMT+02:00 Solar Designer <solar@...nwall.com>: > Yes, thanks. Lukas already ran some benchmarks on a similar device, but > I think he never published those, in part because the descrypt ones were > for AVX2 rather than AVX-512. I think I can find some spare time this weekend to try to fix code, rerun my tests and post results, unless Lei wants to do this - which I don't mind :) Have in mind that AVX512 there is a different set of instructions from those on KNC, so it's better to use some recent compiler. Also Linux kernel must support avx512, which you can check via $ cat /proc/cpuinfo | grep -i avx512 There should be avx512f, avx512pf, avx512cd, avx512er extensions. Thanks, Lukas
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