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Parallel Symbolic Factorization for Sparse LU with Static Pivoting

✍ Scribed by Grigori, Laura; Demmel, James W.; Li, Xiaoye S.


Book ID
118192479
Publisher
Society for Industrial and Applied Mathematics
Year
2007
Tongue
English
Weight
550 KB
Volume
29
Category
Article
ISSN
1064-8275

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Updating an LU Factorization with Pivoti
✍ Quintana-OrtΓ­, Enrique S.; Van De Geijn, Robert A. πŸ“‚ Article πŸ“… 2008 πŸ› Association for Computing Machinery 🌐 English βš– 714 KB

We show how to compute an LU factorization of a matrix when the factors of a leading principle submatrix are already known. The approach incorporates pivoting akin to partial pivoting, a strategy we call __incremental pivoting__ . An implementation using the Formal Linear Algebra Methods Environment