libitsol1

ITerative SOLvers - runtime

Description

ITSOL is a library of iterative solvers for general sparse linear systems of equations. ITSOL can be viewed as an extension of the itsol module in SPARSKIT. It is written in C and offers a selection of recently developed preconditioners. The preconditioner suite includes:

* ILUK (ILU preconditioner with level of fill)

* ILUT (ILU preconditioner with threshold)

* ILUC (Crout version of ILUT)

* VBILUK (variable block preconditioner with level of fill - with

automatic block detection)

* VBILUT (variable block preconditioner with threshold - with

automatic block detection)

* ARMS (Algebraic Recursive Multilevel Solvers -- includes actually

several methods - In particular the standard ARMS and the ddPQ

version which uses nonsymmetric permutations)

Note that ITSOL is a scalar package. You may find parallel implementations of some of the preconditioners listed above in pARMS.

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