A CONNECTION MACHINE (CM-2) IMPLEMENTATION OF A THREE-DIMENSIONAL PARALLEL FINITE DIFFERENCE TIME-DOMAIN CODE FOR ELECTROMAGNETIC FIELD SIMULATION.

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Bibliographic Details
Title:	A CONNECTION MACHINE (CM-2) IMPLEMENTATION OF A THREE-DIMENSIONAL PARALLEL FINITE DIFFERENCE TIME-DOMAIN CODE FOR ELECTROMAGNETIC FIELD SIMULATION.
Authors:	Davidson, David B.¹, Ziolkowski, Richard W.²
Source:	International Journal of Numerical Modelling. May/Aug95, Vol. 8 Issue 3/4, p221-232. 12p.
Subjects:	Connection machines, Parallel computers, Electromagnetic fields, Simulation methods & models, Magnetics, Algorithms
Abstract:	This paper describes a parallel three-dimensional finite difference time-domain (FDTD) code for electromagnetic field simulation that has been developed for the Connection Machine (CM-2). The CM-2 is briefly discussed. Then the FDTD method is reviewed using a one-dimensional example, and the extensions required for the 3-D case are outlined. The parallelization of the FDTD method is considered, and a simple analytical timing model is derived. This model predicts the efficiency of the parallelized algorithm as a function of grain size. Some specific points relating to the implementation of the parallel FDTD algorithm in Fortran- 90 on the CM-2 are discussed. Timing data for the parallel 3-D FDTD code measured on a CM-2 is presented and compared qualitatively with the theoretical model. These results are then put into perspective for a particular computational electromagnetics problem, viz, the development of software tools for full-wave modelling of 3-D optical devices. Finally, we draw some conclusions about this work. [ABSTRACT FROM AUTHOR]
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Database:	Engineering Source

Description
Abstract:	This paper describes a parallel three-dimensional finite difference time-domain (FDTD) code for electromagnetic field simulation that has been developed for the Connection Machine (CM-2). The CM-2 is briefly discussed. Then the FDTD method is reviewed using a one-dimensional example, and the extensions required for the 3-D case are outlined. The parallelization of the FDTD method is considered, and a simple analytical timing model is derived. This model predicts the efficiency of the parallelized algorithm as a function of grain size. Some specific points relating to the implementation of the parallel FDTD algorithm in Fortran- 90 on the CM-2 are discussed. Timing data for the parallel 3-D FDTD code measured on a CM-2 is presented and compared qualitatively with the theoretical model. These results are then put into perspective for a particular computational electromagnetics problem, viz, the development of software tools for full-wave modelling of 3-D optical devices. Finally, we draw some conclusions about this work. [ABSTRACT FROM AUTHOR]
ISSN:	08943370
DOI:	10.1002/jnm.1660080307