TaoLv commented on issue #17047: Add build flag for x86 arch URL: https://github.com/apache/incubator-mxnet/pull/17047#issuecomment-564918587 I see. Not sure if it's a problem of the documentation or the stale version of compiler. Running `gcc -Q --help=target -march=native` with gcc 7.3, my cascade lake machine is identified as knl and -mtune is set to generic. :( Is the below logic good to you? ``` ifneq ($(USE_X86_ARCH), NONE) CFLAGS += -march=$(USE_X86_ARCH) -mtune=$(USE_X86_ARCH) endif ```
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