TrilinosWrappers::PreconditionBlockwiseDirect Class Reference
[TrilinosWrappersPreconditioners]

Inheritance diagram for TrilinosWrappers::PreconditionBlockwiseDirect:
Inheritance graph
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List of all members.

Classes

struct  AdditionalData

Public Member Functions

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

Private Attributes

Teuchos::RCP
< Ifpack_Preconditioner > 
ifpack

Detailed Description

A wrapper class for a sparse direct LU decomposition on parallel blocks for Trilinos matrices. When run in serial, this corresponds to a direct solve on the matrix.

The AdditionalData data structure allows to set preconditioner options.

Note that a parallel applicatoin of the block direct solve preconditioner is actually a block-Jacobi preconditioner with block size equal to the local matrix size. Spoken more technically, this parallel operation is an additive Schwarz method with an exact solve as inner solver, based on the (outer) parallel partitioning.

Author:
Martin Kronbichler, 2008

Member Function Documentation

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

Initialize function. Takes the matrix which is used to form the preconditioner, and additional flags if there are any.


Member Data Documentation

Teuchos::RCP<Ifpack_Preconditioner> TrilinosWrappers::PreconditionBlockwiseDirect::ifpack [private]

This is a pointer to the Ifpack data contained in this preconditioner.


The documentation for this class was generated from the following file:

deal.II documentation generated on Mon Nov 23 22:58:37 2009 by doxygen 1.6.1