This study focuses on hard-to-solve sparse symmetric indefinite problems for which standard threshold partial pivoting leads to significant modifications. We ...
The performance of a sparse direct solver is dependent upon the pivot sequence that is chosen before the factorization begins.
A detailed review of pivoting strategies that are aimed at reducing delayed pivots without compromising numerical stability is performed on hard-to-solve ...
This study focuses on hard-to-solve sparse symmetric indefinite problems for which standard threshold partial pivoting leads to significant modifications. We ...
The performance of a sparse direct solver is dependent upon the pivot sequence that is chosen during the analyse phase. In the case of symmetric indefinite ...
We consider the direct solution of sparse symmetric indefinite matrices. We develop new pivoting strategies that combine numerical pivoting and perturbation ...
We consider the direct solution of sparse symmetric indefinite matrices. We develop new pivoting strategies that combine numerical pivoting and perturbation ...
This paper proposes two alternative pivoting strategies for sparse symmetric indefinite matrices of full rank that significantly reduce communication by ...
Jul 13, 2004 · Abstract. We consider ways of implementing preordering and scaling for symmetric systems and show the effect of using this technique with a ...
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Abstract. This paper discusses new pivoting factorization methods for solving sparse symmetric indefinite sys- tems. As opposed to many existing pivoting ...
Missing: tough | Show results with:tough