Difference between libmkl_mc.so and libmkl_mc3.so

subramanian__vedapra — Tue, 06 Aug 2013 22:26:40 GMT

What is the actual difference between libmkl_mc.so and libmkl_mc3.so. Moreover, How to do you which SSE version is linked to libmkl_mc3.so

When I force the code to use SSE4.1, by this command. mkl_cbwr_set(MKL_CBWR_SSE4_1). Then libmkl_mc.so is being used and the performance is better. But if I don't force it, the code simply uses libmkl_mc3.so and the performance is bad.

Can anyone explain me what actually the difference is?

libmkl_mc3.so supports SSE4

Gennady_F_Intel — Wed, 07 Aug 2013 03:41:40 GMT

libmkl_mc3.so supports SSE4.2 instruction set - for example for Nehalem microarchitecture but libmkl_mc.so supports SSE4.1.

Do you know the CPU type are you running your code?

topic libmkl_mc3.so supports SSE4 in Intel® oneAPI Math Kernel Library

Difference between libmkl_mc.so and libmkl_mc3.so

libmkl_mc3.so supports SSE4