Journal of applied mathematics & informatics

The Korean Society for Computational and Applied Mathematics (한국전산응용수학회)
권호 표지

PARALLEL IMPLEMENTATION OF HYBRID ITERATIVE METHODS FOR NONSYMMETRIC LINEAR SYSTEMS

  • Yun, Jae-Heon (Department of Mathematics, College of Natural Sciencnes Chungbuk National University) ;
  • Kim, Sang-Wook (Department of Mathematics, College of Natural Sciencnes Chungbuk National University)
  • Published : 1997.03.01

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Abstract

In this paper we study efficient parallel implementation for hybrid iterative methods BICGSTAB and BICGSTAB $(\ell)$ with ${Well}=2$ on the CRAY C90 and the efficiency of their parallel performance is evaluated. numerical experiments suggest that on the CRAY C90 a parallel inner product algorithm called PDOTB be used for the par-allelization of hybrid iterative methods containing sensitive values of inner products. Lastly it is shown that the number of iterations in which parallel hybrid iterative methods satisfy a certain convergence criterion depends on the number of processors to be used.

Keywords

References

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