leezu commented on issue #14664: tools/staticbuild/build.sh uses AVX2 instruction set URL: https://github.com/apache/incubator-mxnet/issues/14664#issuecomment-577910947 I verified that the `./tools/staticbuild/build.sh cpu pip` includes AVX2 instructions in the `libmxnet.so`, whereas standard make and cmake builds do not. https://github.com/apache/incubator-mxnet/blob/359da7611db68025e13c1f059bc604634847240c/make/staticbuild/linux_cpu.mk To check the presence of AVX2 instructions use: ``` bash objdump -M intel -d libmxnet.so -C > dump grep -E -i '(VPBROADCASTB|VPBROADCASTW|VPBROADCASTD|VPBROADCASTQ|VBROADCASTI128|VINSERTI128|VEXTRACTI128|VGATHERDPD|VGATHERQPD|VGATHERDPS|VGATHERQPS|VPGATHERDD|VPGATHERDQ|VPGATHERQD|VPGATHERQQ|VPMASKMOVD|VPMASKMOVQ|VPERMPS|VPERMD|VPERMPD|VPERMQ|VPERM2I128|VPBLENDD|VPSLLVD|VPSLLVQ|VPSRLVD|VPSRLVQ|VPSRAVD)' dump ```
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