kpuatamazon commented on a change in pull request #17559:
URL: https://github.com/apache/incubator-mxnet/pull/17559#discussion_r479358134
##########
File path: CMakeLists.txt
##########
@@ -64,6 +64,13 @@ if(USE_MKL_IF_AVAILABLE AND (NOT APPLE) AND (NOT MSVC) AND
(CMAKE_HOST_SYSTEM_PR
else()
option(USE_MKLDNN "Build with MKL-DNN support" OFF)
endif()
+#gcc 4 doesn't support AVX2 and SSSE3 support doesn't work with target
attributes so ban gcc < 5 from intgemm.
+if ((CMAKE_HOST_SYSTEM_PROCESSOR STREQUAL "x86_64") AND (NOT
CMAKE_CROSSCOMPILING) AND
+ ((NOT CMAKE_COMPILER_IS_GNUCC) OR (CMAKE_CXX_COMPILER_VERSION
VERSION_GREATER_EQUAL 5.0)))
+ option(USE_INTGEMM "Build with x86 intgemm library for
low-precision multiplication" ON)
+else()
+ option(USE_INTGEMM "Build with x86 intgemm library for
low-precision multiplication" OFF)
+endif()
Review comment:
d03342adbe0d68528b3e8e26c8517b4fbdb0eec9
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