TLM MODELING USING AN SIMD COMPUTER

A major limitation of the transmission-line matrix (TLM) method used t o solve Maxwell's equations is the long computation time required. The TLM scattering calculations involved can, however, be viewed as paral lel in nature. This paper describes an effort to reduce computational time by using an SIMD, DAP multiprocessor computer employed to solve a two-dimensional TLM electromagnetic field formulation. A parallel alg orithm based on the TLM scattering algorithm is designed and implement ed using FORTRAN-PLUS Enhanced on an AMT DAP 510 machine. Here the con nectivity of the DAP is exploited to simulate the intrinsic scattering behaviour on which the TLM algorithm relies. The results show that pa rallel processing on an SIMD machine such as the DAP is advantageous, especially for higher-order mesh sizes.