AVX-512 standard consists of many extensions, and only one (AVX-512F) is mandatory. What exactly is supported by new Skylake-X (Core i9, 79xxX/XE) CPUs? Wikipedia page about AVX has details about Skylake Xeon CPUs (E5-26xx V5), but not about i9. Google also was not very helpful. I also tried to search for some dump of /proc/cpuinfo for this CPU, but without luck.
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AVX512 has its own wikipedia page, which says Skylake X supports AVX-512 F, CD, BW, DQ, and VL.
The Aida64 dump found here agrees.
harold
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Thanks! This is what I was looking for. – Daniel Frużyński Nov 05 '17 at 14:29
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Is it also supported on Coffee Lake U processors? – Nanashi No Gombe May 27 '19 at 11:57
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@NanashiNoGombe only AVX2, none of the 512bit extensions – harold May 27 '19 at 12:52