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On the parallel scalability of hybrid linear solvers for large 3D problems

Haidar, Azzam. On the parallel scalability of hybrid linear solvers for large 3D problems. PhD, Institut National Polytechnique de Toulouse, 2008

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Official URL: http://ethesis.inp-toulouse.fr/archive/00000650/

Abstract

Large-scale scientific applications and industrial simulations are nowadays fully integrated in many engineering areas. They involve the solution of large sparse linear systems. The use of large high performance computers is mandatory to solve these problems. The main topic of this research work was the study of a numerical technique that had attractive features for an efficient solution of large scale linear systems on large massively parallel platforms. The goal is to develop a high performance hybrid direct/iterative approach for solving large 3D problems. We focus specifically on the associated domain decomposition techniques for the parallel solution of large linear systems. We have investigated several algebraic preconditioning techniques, discussed their numerical behaviours, their parallel implementations and scalabilities. We have compared their performances on a set of 3D grand challenge problems.

Item Type:PhD Thesis
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Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
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Research Director:
Giraud, Luc
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Deposited By: admin admin
Deposited On:21 Nov 2012 13:50

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