Large scale ADI-FDTD parallel computations

Stefanski, T.P. and Drysdale, T.D. (2008) Large scale ADI-FDTD parallel computations. In: Asia Pacific Microwave Conference 2008, Macau, China, 16-20 Dec 2008, (doi: 10.1109/APMC.2008.4958494)

Abstract

We present performance benchmark results for a parallel alternating direction implicit finite difference time domain (ADI-FDTD) solver with convolution perfectly matched layer boundary conditions on a high performance computer cluster using a message passing interface library. Parallel implementations of ADI-FDTD are necessary to increase the maximum solvable problem size. ADI-FDTD solvers can reduce the overall run time of simulations requiring very fine meshing, compared to conventional FDTD, by overcoming the Courant-Friedrichs-Lewy constraint on the time step. We show that with careful minimization of the communication overhead, a scaling efficiency of 60-80% can be obtained for even the largest 3-D simulation that we characterize (8 billion mesh cells).

• Item Type: Conference Proceedings
• Additional Information: ISBN: 9781424426416
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Drysdale, Dr Timothy and Stefanski, Mr Tomasz
• Authors: Stefanski, T.P., and Drysdale, T.D.
• Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Publisher: IEEE Computer Society