On 17 Oct 2019, at 20:02, Zhang Yuwei
<yuwei1.zh...@intel.com<mailto:yuwei1.zh...@intel.com>> wrote:
Hi Dear VPP guys,
I would like to do some investigation about AVX512 instruction
support in VPP, I saw there are already some implementations but AVX2 is still
the default option. Could anybody tell me how to enable AVX512 in VPP?
Appreciate for your kindly help in advance.
There is cli to switch variant for specific node on runtime:
set node function <node-name> <variant-name>
i.e. "set node function ethernet-input avx512"
"show node" will tell you which variants exist and which one is currently
selected.
If you want to change all, you will need to change clib_cpu_march_priority_avx2
in src/vppinfra/cpu.h...
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