Use runtime check for AVX512 (sgemm_direct) capability when using DYNAMIC_ARCH
Use runtime check for AVX512 (sgemm_direct) capability when using DYNAMIC_ARCH
xianyi/OpenBLAS,xianyi/OpenBLAS,xianyi/OpenBLAS,xianyi/OpenBLAS,xianyi/OpenBLAS,xianyi/OpenBLAS,xianyi/OpenBLAS,xianyi/OpenBLAS