We discuss issues related to domain decomposition and multilevel preconditioning techniques which are often employed for solving large sparse linear systems in parallel computations. We implement a parallel preconditioner for solving general sparse linear systems based on a two level block ILU facto
โฆ LIBER โฆ
Additive and Multiplicative Two-Level Spectral Preconditioning for General Linear Systems
โ Scribed by Carpentieri, B.; Giraud, L.; Gratton, S.
- Book ID
- 118191898
- Publisher
- Society for Industrial and Applied Mathematics
- Year
- 2007
- Tongue
- English
- Weight
- 960 KB
- Volume
- 29
- Category
- Article
- ISSN
- 1064-8275
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๐ 1 views
This paper introduces techniques based on diagonal threshold tolerance when developing multi-elimination and multi-level incomplete LU (ILUM) factorization preconditioners for solving general sparse linear systems. Existing heuristics solely based on the adjacency graph of the matrices have been use