MKL LLC usage policy

Hello, experts,

Assume that I have 4 cores machine, each core has 2MB of LLC slice and LLC includes L2. 

1) If I use single-threaded MKL, the MKL instance will use 2MB of LLC or use 8MB LLC?

2) If I use openmp threads to control the parallelism, will MKL instance determine available LLC based on thread num?

Any help is appreciated. Thanks.

Best Regards