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Intel Math Kernel Library (MKL)

Team Member

1. Rene Anderson

Intro

Intel Math Kernel Library

MKL provides highly vectorized and threaded Linear Algebra, Fast Fourier Transforms, Vector Math and Statistics functions. Intel MKL uses industry standard APIs. This means that developers would have to make minor changes to their programs when switching to MKL.

Intel MKL gives the developer control over the necessary trade-offs

1. Result consistency vs performance
2. Accuracy vs performance

Intel MKL is also compatible with your choice of compilers, languages, operating systems, linking and threading models. One library solution across multiple environments means only one library to learn and manage.

For this assignment I will be focusing on the Linear Algebra routines.

Linear Algebra

Intel MKL provides highly optimized BLAS routines

1. BLAS Level 1 vector-vector
2. BLAS Level 2 matrix-vector
3. BLAS Level 3 matrix-matrix

Source code

How to enable Intel MKL

Command line

1. -mkl
2. -mkl=parallel to link with standard threaded Intel MKL.
3. -mkl=sequential to link with sequential version of Intel MKL.
4. -mkl=cluster to link with Intel MKL cluster components (sequential) that use Intel MPI.

Useful Link

1. https://software.intel.com/en-us/intel-mkl/details
2. https://software.intel.com/en-us/node/468380