On 8/19/2021 3:58 AM, Paul B Mahol wrote:
On Mon, Aug 16, 2021 at 1:49 PM James Almer <jamr...@gmail.com> wrote:
On 8/16/2021 6:27 AM, Wu, Jianhua wrote:
Yes, but we don't want to use AVX512 on hardware that downclocks
heavily.
It's okay. Should I updated the configure file to let the IceLake-AVX512
to be the minimum baseline or add a new macro name AVX512ICL?
Update the test in configure to look for an instruction available on Ice
Lake (like VL), then update the check in cpu.c to make sure AVX2 is only
enabled if AVX2-related flags Ice Lake and newer CPUs have in common are
signaled.
I think you are confused. AVX2 is doing fine.
Meant to say AVX512, yes.
What are you planning to push? Was a patch bumping the requirements for
the current AVX512 flag as discussed submitted or not?
Jianhua
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