Journal of Xidian University

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Parallel FDTD computation of million cores with the domestically-made many-core supercomputer

JIANG Xuesong;JIANG Shugang;ZHANG Yu;ZHAO Xunwang   

  1. (Science and Technology on Antennas and Microwave Lab., Xidian Univ., Xi'an 710071, China)
  • Received:2016-12-11 Online:2017-12-20 Published:2018-01-18

Abstract:

According to the new structure of domestically-made super computers, the massively parallel Finite-Difference Time-Domain (FDTD) is studied. By using the accelerating thread library, a parallel FDTD programming method for many-core processors is proposed. The parallel FDTD program based on this method is the first to realize 3 million processor cores parallel computation.Test results show that the parallel efficiency can reach up to 50% on 327680 cores with 16384 cores as the benchmark. And an analysis of the 200 wavelength electric size airborne antenna array is made. The researches in this paper indicate that the complicate electromagnetic problems can be solved efficiently using the method on the domestic many-core supercomputing platform.

Key words: parallel algorithms, domestic processors, 3000000 core, finite-difference-time-domain, computational electromagnetics