Unbalanced Stiff equations are used to simulate the nonequilibrium phenomena of radiation.The parallelism of the numerical computation is analyzed and a kind of load balancing method is given.In order to increase the data locality, a sequencing computation method in multi-processors is also given.With the corresponding parallel algorithm of the simulation,the results testified on the workstations are provided and discussed.

The finite-difference time-domain (FDTD) algorithm is employed to simulate microwave pulse coupling into narrow slots which have depths much narrower than on FDTD cell.It analyzes the parallelism of FDTD algorithm and presents a parallel algorithm of simulation.In order to reduce the communication time, it also uses the message fusion and the lap of computation and communication.In addition it analyzs the complex of the parallel algorithm and gives some results on the Alpha workstation.