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Bu, Y., Carpentieri, B. 
ORCID: 0000-0002-0516-0033, Shen, Z. and Huang, T.-Z.,
2016.
A hybrid recursive multilevel incomplete factorization preconditioner for solving general linear systems.
Applied Numerical Mathematics, 104, pp. 141-157.
ISSN 0168-9274
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Abstract
In this paper we introduce an algebraic recursive multilevel incomplete factorization preconditioner, based on a distributed Schur complement formulation, for solving general linear systems. The novelty of the proposed method is to combine factorization techniques of both implicit and explicit type, recursive combinatorial algorithms, multilevel mechanisms and overlapping strategies to maximize sparsity in the inverse factors and consequently reduce the factorization costs. Numerical experiments demonstrate the good potential of the proposed solver to precondition effectively general linear systems, also against other state-of-the-art iterative solvers of both implicit and explicit form.
| Item Type: | Journal article | ||||
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| Publication Title: | Applied Numerical Mathematics | ||||
| Creators: | Bu, Y., Carpentieri, B., Shen, Z. and Huang, T.-Z. | ||||
| Publisher: | Elsevier | ||||
| Date: | June 2016 | ||||
| Volume: | 104 | ||||
| ISSN: | 0168-9274 | ||||
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| Divisions: | Schools > School of Science and Technology | ||||
| Record created by: | Linda Sullivan | ||||
| Date Added: | 20 May 2016 09:08 | ||||
| Last Modified: | 09 Jun 2017 14:02 | ||||
| URI: | https://irep.ntu.ac.uk/id/eprint/27835 |
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