Chapter 9.4 : The intrinsics version of barycentre

• 9.4.1) The barycentre_intrinsics.h file
• 9.4.2) The barycentre_intrinsics.cpp file
• 9.4.3) The CMakeLists.txt file
• 9.4.4) The compilation
• 9.4.5) The performances

During this section, we will use :

• Inclusion of file immintrin.h
• Intrinsic function : _mm256_load_ps
• Intrinsic function : _mm256_store_ps
• Intrinsic function : _mm256_mul_ps
• Intrinsic function : _mm256_add_ps
• Intrinsic function : _mm256_broadcast_ss (to duplicate a float 8 times in a vectorial register)
• Enable specific optimisations with -O3 -march=native -mtune=native -mavx2