SVD it is approximately equal BLAS Level 2 + BLAS Level 3
BLAS Level 2 - a single active thread.
BLAS Level 3 - 8 active thread.
Part of operation with a two-scalar matrix - a single active thread.
Though on new processors BLAS Level 2 partially parallelized.
Have you got the chance to check MKL 11.2 release? The SVD function has significant improvement:
Feel free to let us know if you have any feedback on this.