Parallel computation of time-domain integral equation analyses of electromagnetic scattering and RCS

Electromagnetic scattering analyses for radar cross-section (RCS) prediction present very large computational demands. Processing on parallel machines will contribute to increasing the size of problem tractable. We present a parallel implementation of the time-domain integral equation method. The issues and options in its parallelization are identified, and domain decomposition strategies to suit these are implemented. Good parallelization is exhibited, with the most costly parts of the algorithm displaying essentially linear speedup. Demonstrations using the Cray T3D are given with, for example, results on the /spl sim/12 wavelength NASA almond obtained in /spl sim/30 min per illumination angle, using 256 processors.