D9.2.1: First Report on Multi-Petascale to Exascale Software

This report investigates the transition of applications from multi-petascale to exascale performance. Since the recent end of frequency scaling, we observe a rapid evolution of power-efficient computer architectures. Thus, we believe that an investigation of future software systems requires an understanding of future hardware architectures. To that end we have surveyed and evaluated the state-of-the-art in high-performance computer systems, parallel programming languages, and system software and tools. Our goal is to identify trends and developments that have the potential to shape the era of exascale supercomputing. We summarize our findings separately by topic: computer systems, parallel programming languages and system software and tools