User-Extensible Compiler Toolchains for Refactoring CSE Software

<p>Position paper accepted for presentation at the Computational Science & Engineering Software Sustainability and Productivity Challenges (CSESSP<br>Challenges) Workshop, which is sponsored by the Networking and Information Technology Research and Development (NITRD) Software Design and Productivity (SDP) Coordinating Group, held on the 15th and 16th of October 2015 in Washington DC, USA. It discusses how compiler directive API technologies can serve as means for extending the compiler toolchain for user-specific CSE software analysis, refactoring and optimization tasks.