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TrilinosWrappers::PreconditionJacobi Class Reference
[TrilinosWrappersPreconditioners and Relaxation Operators]

Inheritance diagram for TrilinosWrappers::PreconditionJacobi:
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Classes

struct  AdditionalData

Public Member Functions

void initialize (const SparseMatrix &matrix, const AdditionalData &additional_data=AdditionalData())

Detailed Description

A wrapper class for a (pointwise) Jacobi preconditioner for Trilinos matrices. This preconditioner works both in serial and in parallel, depending on the matrix it is based on.

The AdditionalData data structure allows to set preconditioner options. For the Jacobi preconditioner, these options are the damping parameter omega and a min_diagonal argument that can be used to make the preconditioner work even if the matrix contains some zero elements on the diagonal. The default settings are 1 for the damping parameter and zero for the diagonal augmentation.

Author:
Martin Kronbichler, 2008

Definition at line 197 of file trilinos_precondition.h.


Member Function Documentation

void TrilinosWrappers::PreconditionJacobi::initialize ( const SparseMatrix matrix,
const AdditionalData additional_data = AdditionalData() 
)

Take the sparse matrix the preconditioner object should be built of, and additional flags (damping parameter, etc.) if there are any.


The documentation for this class was generated from the following file:
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deal.II documentation generated on Fri Feb 3 2012 06:04:17 by doxygen 1.7.2