Implementation of the Multicolored SOR Method on a Vector Supercomputer

Seiji FUJINO  Ryutaro HIMENO  Akira KOJIMA  Kazuo TERADA  

IEICE TRANSACTIONS on Information and Systems   Vol.E80-D   No.4   pp.518-523
Publication Date: 1997/04/25
Online ISSN: 
Print ISSN: 0916-8532
Type of Manuscript: Special Section PAPER (Special Issue on Parallel and Distributed Supercomputing)
multicolor,  SOR method,  PDE,  vector length,  stencil,  

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We describe the implementation of an iterative method with the goal of gaining a long vector length. The strategy for vectorization by means of multipoint stencils used for discretization of the partial differential equations is discussed. Numerical experiments show that the strategy that requires certain restrictions on the number of grid points in the x and y directions improves the performance on the vector supercomputer.