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Frontiers of Information Technology & Electronic Engineering >> 2018, Volume 19, Issue 10 doi: 10.1631/FITEE.1800421

Extreme-scale parallel computing: bottlenecks and strategies

1. CAEP Software Center for High Performance Numerical Simulation, Beijing 100088, China
2. Institute of Applied Physics and Computational Mathematics, Beijing 100094, China

Available online: 2018-12-03

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Abstract

Extreme-scale numerical simulations seriously demand extreme parallel computing capabilities. To address the challenges of these capabilities toward exascale, we systematically analyze the major bottlenecks of parallel computing research from three perspectives: computational scale, computing efficiency, and programming productivity. For these bottlenecks, we propose a series of urgent key issues and coping strategies. This study will be useful in synchronizing development between the numerical computing capability and supercomputer peak performance.

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