PARALLEL IMPLEMENTATION OF A MONTE-CARLO PARTICLE SIMULATION COUPLED TO MAXWELLS EQUATIONS

PMC-3D, a parallel three-dimensional (3-D) Monte Carlo device simulato r for multicomputers is discussed. The parallel algorithm is an extens ion of the standard Monte Carlo device simulation model in three dimen sions, that combines the stochastic Monte Carlo particle simulation me thod with a solution of Poisson equation for quasi-static problems, an d full Maxwell's equations for microwave or electro-optic phenomena. W hile our implementation of the Poisson solver is based on an iterative method that uses an odd/even ordering with Chebyshev acceleration, a simple leapfrog method based upon the computational unit of Yee cell i s used in a finite-difference, time-domain (FDTD) formulation to solve Maxwell's equations. The parallel algorithms were implemented on a 10 24-node distributed memory nCUBE multicomputer. In this work, we prese nt the application of PMC-3D to generate the static current-voltage ch aracteristics of a GaAs MESFET, and to simulate photogenerated femtose cond electrical transients produced in a coplanar stripline on a GaAs substrate.