Multifrontal parallel distributed symmetric and unsymmetric solvers

P. R. Amestoy; I. S. Duff; J. -Y. LExcellent

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Multifrontal parallel distributed symmetric and unsymmetric solvers

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摘要

We consider the solution of both symmetric and unsymmetric systems of sparse linear equations. A new parallel distributed memory multifrontal approach is described. To handle numerical pivoting efficiently, a parallel asynchronous algorithm with dynamic scheduling of the computing tasks has been developed. We discuss some of the main algorithmic choices and compare both implementation issues and the performance of the LDL and LU factorizations. Performance analysis on an IBM SP2 shows the efficiency and the potential of the method. The test problems used are from the Rutherford -Boeing collection and from the PARASOL end users.

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《Computer Methods in Applied Mechanics and Engineering》 |2000年第4期|501-520|共20页
作者
P. R. Amestoy; I. S. Duff; J. -Y. LExcellent;
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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类自动化基础理论;工程基础科学;
关键词
MPI; Distributed memory architecture; Sparse matrices; Multifrontal direct methods;

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Multifrontal parallel distributed symmetric and unsymmetric solvers

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