Incomplete Multilevel Cholesky Factorizations
β Scribed by Diaz, J. C.; Komara, K.
- Book ID
- 118216193
- Publisher
- Society for Industrial and Applied Mathematics
- Year
- 2001
- Tongue
- English
- Weight
- 206 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0895-4798
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π SIMILAR VOLUMES
Efficient and reliable code to compute incomplete Cholesky factors of sparse matrices for use as preconditioners in a conjugate gradient algorithm is described. This code implements two recently developed, improved incomplete factorization algorithms. An efficient implementation of the standard inco
Incomplete factorization preconditioners based on recursive red-black orderings have been shown efficient for discrete second order elliptic PDEs with isotropic coefficients. However, they suffer for some weakness in presence of anisotropy or grid stretching. Here we propose to combine these orderin