AI AA 93 - 31 79 Performance of a Characteristic - Based , 3 - D , Time - Domain Maxwell Equations Solver on a Massively Parallel Computer

A characteristic-based. windward numerical prccerlure for solving three-dimensional Maxwell equations iii the time domain has been successfully ported to the Ititpi Touchstone Delta ninlticoniputer. The riumerical results by concurrent computation duplicated the earlier simulations of an oscillating electric dipole on a vector processor and compared w~11 with the exact solutioti. 'I'lie parallelized rode is scalable up to 51% nodes and incurs only a 2.91% performance degradation. The sustained data processing rate is clocked at 5.704 Gigaops. However, the data 110 process is unscalable on tlie shared memory system.