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  1. therickaman
    Hello All, I have a question regarding the use flags with the intel64-haswell subarch. Since I don't plan to compile code on any other machine but the computer I'm installing on, why would the use flag -march=core-avx2 be superior to -march=native? Perhaps I'm incorrect, but wouldn't -march=native be best for me? If not, why? I'm really confused by core-avx2. I could be wrong, but I think using -march=native is equivalent to -march=haswell in this case. If so, is -march=haswell different from -march=core-avx2? I did notice that the CPU_FLAGS mentioned on the subarch page missed avx2, so I added that into the CPU_FLAGS within make.conf. Any help would be greatly appreciated. Thanks, Rick
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