Solving the least squares problem using a parallel linear algebra library
β Scribed by Johannes G.G. van de Vorst
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 324 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0167-739X
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π SIMILAR VOLUMES
The linear least squares problem, min x Ax-b 2 , is solved by applying a multisplitting(MS) strategy in which the system matrix is decomposed by columns into p blocks. The b and x vectors are partitioned consistently with the matrix decomposition. The global least squares problem is then replaced by
The implementation of a least-squares finite element method for solving the generalized stationary Stokes problem (i.e. the Stokes problem with an additional term Ξ±u in the motion equation, where Ξ± is a big parameter and u is the velocity vector function) is considered. The basis of this method is t