BLAS and LAPACK functions

Hello everyone,

I'm trying to generate C code from a Simulink model. To speed up the matrix operations as much as possible, I also call the BLAS and Lapack libraries in Simulink-Model. I noticed some BLAS functions are not used in C code. They are level 1 and 2 BLAS functions. The level 3 BLAS functions are successfully used in C code. I read in the Intel MKL Developer Guide the usable functions in OpenMP and Intel TBB differ. My question is whether the compiler used has any influence on it or how can I change the threading options between OpenMP and Intel TBB?

I would be grateful for any advice. Thanks.