Radiation-magnetohydrodynamics of plasmas on parallel supercomputers

Author

Yasar, Osman ; Moses, Gregory A. ; Tautges, Tim

Author_Institution

Center for Parallel Comput. in Eng., Wisconsin Univ., Madison, WI, USA

fYear

1992

fDate

19-21 Oct 1992

Firstpage

579

Lastpage

582

Abstract

Presents a parallel computational model to simulate plasmas in the radiation-magnetohydrodynamics (R-MHD) framework. The solution of the radiation field usually dominates the R-MHD computation. The authors solve the linear Boltzmann equation for the radiation field intensity, using the deterministic S_N discrete ordinates method. Choosing an energy-domain decomposition the authors have implemented the S_N method on a parallel processor, the Intel iPSC/860, and the speedups are very favorable. Increasing almost linearly with the number of processors, the speedup reaches 14 on 16 processors. A comparison of timing measurements between a single processor CRAY Y-MP and a 16 processor iPSC/860 implementation strongly favors parallelism by a factor of 3.7

Keywords

Boltzmann equation; parallel processing; physics computing; plasma kinetic theory; plasma magnetohydrodynamics; plasma simulation; Boltzmann equation; Intel iPSC/860; energy-domain decomposition; parallel computational model; parallel processor; plasma simulation; radiation-magnetohydrodynamics; speedups; Boltzmann equation; Concurrent computing; Plasma applications; Plasma confinement; Plasma materials processing; Plasma simulation; Plasma transport processes; Plasma welding; Supercomputers; Tin;

fLanguage

English

Publisher

ieee

Conference_Titel

Frontiers of Massively Parallel Computation, 1992., Fourth Symposium on the

Conference_Location

McLean, VA

Print_ISBN

0-8186-2772-7

Type

conf

DOI

10.1109/FMPC.1992.234915

Filename

234915