An Optimized Parallel FDTD Topology for Challenging Electromagnetic Simulations on Supercomputers

Shugang Jiang, Yu Zhang, Zhongchao Lin, Xunwang Zhao
2015 International Journal of Antennas and Propagation  
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
more » ... 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.
doi:10.1155/2015/690510 fatcat:qzh7xfgvwbc3dh6wnbwxc2t374