An Optimized Parallel FDTD Topology for Challenging Electromagnetic Simulations on Supercomputers

作者：Jiang, Shugang^*; Zhang, Yu; Lin, Zhongchao; Zhao, Xunwang

来源：International Journal of Antennas and Propagation, 2015, 2015: 690510.

DOI：10.1155/2015/690510

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.

• 出版日期2015
• 单位西安电子科技大学