Further Improvements in Nonsymmetric Hybrid Iterative Methods
In the past few years new methods have been proposed that can be seen as combinations of standard Krylov subspace methods, such as Bi—CG and GM-RES. Such hybrid schemes include CGS, BiCGSTAB, QMRS, TFQMR, and the nested GMRESR method. These methods have been successful in solving relevant sparse nonsymmetric linear systems, but there is still a need for further improvements. In this paper we will highlight some of the recent advancements in the search for effective iterative solvers.
KeywordsIteration Count Matrix Entry Sparsity Pattern Incomplete Factor Short Channel Device
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- M. Driessen, H.A.v.d. Vorst, Bi-CGSTAB in Semiconductor Modeling, Proc. SISDEP (1991).Google Scholar
- C. Pommerell, Solution of Large Unsymmetric Systems of Linear Equations, Doctoral Thesis, ETH Zurich (1992).Google Scholar
- S.M. Sze, High-Speed Semiconductor Devices, John Wiley & Sons, p. 177 (1990).Google Scholar