[ 源代码： itsol ]
软件包：libitsol1（1.0.0-3 以及其他的）
ITerative SOLvers - runtime
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.