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I have a question that are all 14nm intel cpu use the same micro architecture?
E.g (sky lake, kaby lake, coffee lake, whisky lake).
PS: Linux-ck repo only have sky lake version , which is the first generation of 14nm nano architecture.

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I found the answer in this issue. Basically, if you want to decide which architecture parameter you should use to optimize your program. You can simply run gcc -c -Q -march=native --help=target | grep march && rm ./help-dummy.o on Linux.

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