An Optimized Parallel FDTD Topology for Challenging Electromagnetic Simulations on Supercomputers | Zendy

Shugang Jiang | Zendy; Yu Zhang | Zendy; Zhongchao Lin | Zendy; Xunwang Zhao | Zendy

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An Optimized Parallel FDTD Topology for Challenging Electromagnetic Simulations on Supercomputers

Author(s) -

Shugang Jiang,

Yu Zhang,

Zhongchao Lin,

Xunwang Zhao

Publication year - 2015

Publication title -

international journal of antennas and propagation

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.282

H-Index - 37

eISSN - 1687-5877

pISSN - 1687-5869

DOI - 10.1155/2015/690510

Subject(s) - finite difference time domain method , computer science , supercomputer , computational science , code (set theory) , topology (electrical circuits) , parallel computing , message passing interface , antenna (radio) , physics , message passing , optics , engineering , telecommunications , electrical engineering , set (abstract data type) , programming language

It may not be a challenge to run a Finite-Difference Time-Domain (FDTD) code for electromagnetic simulations on a supercomputer with more than 10 thousands of CPU cores; however, to make FDTD code work with the highest efficiency is a challenge. In this paper, the performance of parallel FDTD is optimized through MPI (message passing interface) virtual topology, based on which a communication model is established. The general rules of optimal topology are presented according to the model. The performance of the method is tested and analyzed on three high performance computing platforms with different architectures in China. Simulations including an airplane with a 700-wavelength wingspan, and a complex microstrip antenna array with nearly 2000 elements are performed very efficiently using a maximum of 10240 CPU cores

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