leezu commented on a change in pull request #17047: Add build flag for x86 arch
URL: https://github.com/apache/incubator-mxnet/pull/17047#discussion_r356946208
 
 

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 File path: CMakeLists.txt
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 @@ -28,6 +28,7 @@ option(USE_OPENMP "Build with Openmp support" ON)
 cmake_dependent_option(USE_CUDNN "Build with cudnn support" ON "USE_CUDA" OFF) 
# one could set CUDNN_ROOT for search path
 cmake_dependent_option(USE_SSE "Build with x86 SSE instruction support" ON 
"NOT ARM" OFF)
 option(USE_F16C "Build with x86 F16C instruction support" ON) # autodetects 
support if ON
+option(USE_X86_ARCH         "Build with x86 options for -march" OFF)
 
 Review comment:
   Yes. But please see my question about default value below.

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