Intel(R) Math Kernel Library (Intel(R) MKL) has full support for the Intel(R) Xeon Phi(TM) Co-processor and supports the following compute models, one of which has the capability to use both multicore host and many-core co-processors at the same time. Here is a short summary of the execution models. In this article, we will describe data sizes and parallel programming / offload techniques best benefit from a particular MKL execution model: