leezu edited a comment on issue #17047: Add build flag for x86 arch URL: https://github.com/apache/incubator-mxnet/pull/17047#issuecomment-564907560 @TaoLv From the wording alone I'd agree with you. But it seems that the wording is not precise: Quoting https://lemire.me/blog/2018/07/25/it-is-more-complicated-than-i-thought-mtune-march-in-gcc/ > This has lead me to believe that “-march” trumps “-mtune” meaning that if you set “-march=native”, then the “-mtune” is effectively irrelevant. > > I was wrong. In particular, `march=native` doesn't imply `mtune=native`. But for example, `march=broadwell` implies `mtune=broadwell`. Thus if we use `native` with gcc, we must specify both `march` and `mtune`.
---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services
