Title :
Accelerated plasma simulations using the FDTD method and the CUDA Architecture
Author :
Wei Meng ; Yufa Sun
Author_Institution :
Key Lab. of Intell. Comput. & Signal Process., Anhui Univ., Hefei, China
Abstract :
This letter presents the graphic processor unit (GPU) implementation of the finite-difference time-domain (FDTD) method for the solution of the two-dimensional electromagnetic fields inside dispersive media. An improved Z-transform-based finite-difference time-domain (ZTFDTD) method was presented for simulating the interaction of electromagnetic wave with unmagnetized plasma. By using the newly introduced Compute Unified Device Architecture (CUDA) technology, we illustrate the efficacy of GPU in accelerating the FDTD computations by achieving significant speedups with great ease and at no extra hardware cost. The effect of the GPU-CPU memory transfers on the speedup will be also studied.
Keywords :
Z transforms; computational electromagnetics; dispersive media; electromagnetic fields; finite difference time-domain analysis; graphics processing units; multiprocessing systems; CUDA architecture; FDTD method; Z transform based finite difference time domain method; accelerated plasma simulations; compute unified device architecture; dispersive media; electromagnetic wave; graphic processor unit; memory transfers; two dimensional electromagnetic fields; unmagnetized plasma; Computational modeling; Computer architecture; Finite difference methods; Graphics processing units; Instruction sets; Plasmas; Time-domain analysis; CUDA; FDTD; GPU; Z-transform;
Conference_Titel :
Antennas & Propagation (ISAP), 2013 Proceedings of the International Symposium on
Conference_Location :
Nanjing
Print_ISBN :
978-7-5641-4279-7
