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Communication Dans Un Congrès Année : 2008

A parallel direct/iterative solver based on a Schur complement approach.

Résumé

In this paper, we present HIPS (Hierarchical Iterative Parallel Solver) a parallel sparse linear solver that combines effectively direct and iterative methods through a Schur complement approach. The corner stone of our method is to use a special decomposition and ordering of the matrix that allows to construct a reduced system and a robust preconditioner at low memory cost. The parallelization scheme we describe is original for this type of solver and provide a natural way to find a good trade-off between memory and convergence. Eventually, we give some results obtained by our solver on large referenced test cases.
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Dates et versions

hal-00353547 , version 1 (15-01-2009)

Identifiants

  • HAL Id : hal-00353547 , version 1

Citer

Jérémie Gaidamour, Pascal Hénon. A parallel direct/iterative solver based on a Schur complement approach.. IEEE 11th International Conference on Computational Science and Engineering, Jul 2008, Sao Paulo, Brazil. page 98--105. ⟨hal-00353547⟩
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