title: Is the Intel Xeon Phi usable without a costly Intel Compiler?
body: <p>Does the <a href="http://www.intel.com/content/www/us/en/high-performance-computing/high-performance-xeon-phi-coprocessor-brief.html" rel="noreferrer">Intel Xeon Phi coprocessor</a>, to be usable as parallel platform, require a license of the <a href="http://software.intel.com/en-us/intel-composer-xe-purchase/" rel="noreferrer">Intel Composer XE</a> compiler, or are there alternative compilers?</p>