This is the first article in a series of articles about High Performance Computing with the Intel Xeon Phi. The Intel Xeon Phi is the first commercial product of Intel to incorporate the Many Integrated Core architecture. In this article I will present the basics of the Xeon Phi architecture, the programming models and what we can do to measure the performance in cycles for micro benchmarks.
This document describes a set of source code examples that are available as part of the Intel® Composer 2013 package. These examples demonstrate the basic concepts of offload programming for Intel® Xeon Phi™ coprocessors and are installed to the following default location on Linux*. The default value for <install_dir> is /opt/intel/composer_xe_2013.
Fortran code examples: <install-dir>/Samples/en_US/Fortran/mic_samples/LEO_Fortran_intro/
C code examples: <install_dir>/Samples/en_US/C++/mic_samples/intro_sampleC/
Intel® Math Kernel Library (Intel® MKL) includes the optimized DFT transform functions on Intel® Xeon Phi™ coprocessors. These functions are carefully vectorized and threaded to take advantage of the hardware features. This article provides some performance tuning tips on running MKL DFT function on Intel Xeon Phi coprocessors. We will start with some simple example code.
Building the example code