Linear

Linear solvers and helpers. More...

Description

Linear solvers and helpers.

Files
file	amgbackend.hh
	Provides a parallel linear solver based on the ISTL AMG preconditioner and the ISTL BiCGSTAB solver.
file	amgparallelhelpers.hh
	Provides a helper class for nonoverlapping decomposition using the ISTL AMG.
file	amgtraits.hh
	Define traits for the AMG backend.
file	linearsolveracceptsmultitypematrix.hh
	Trait checking if linear solvers accept Dune::MultiTypeBlockMatrix or we need to convert the matrix.
file	matrixconverter.hh
	A helper classe that converts a Dune::MultiTypeBlockMatrix into a plain Dune::BCRSMatrix.
file	linear/pdesolver.hh
	A high-level solver interface for a linear PDE solver.
file	scotchbackend.hh
	An interface to the scotch library for matrix reordering.
file	scotchbackend.hh
	An interface to the scotch library for matrix reordering.
file	seqsolverbackend.hh
	Dumux sequential linear solver backends.
file	dumux/linear/solver.hh
	Base class for linear solvers.
file	vectorexchange.hh
	Contains a class to exchange entries of a vector.

Classes
class	Dumux::ParallelAMGBackend< GridView, AmgTraits >
	A linear solver based on the ISTL AMG preconditioner and the ISTL BiCGSTAB solver. More...
class	Dumux::ParallelISTLHelper< GridView, AmgTraits >
	A parallel helper class providing a nonoverlapping decomposition of all degrees of freedom. More...
class	Dumux::EntityExchanger< GridView, AmgTraits >
	Helper class for adding up matrix entries on border. More...
class	Dumux::MatrixConverter< MultiTypeBlockMatrix, Scalar >
	A helper classe that converts a Dune::MultiTypeBlockMatrix into a plain Dune::BCRSMatrix TODO: allow block sizes for BCRSMatrix other than 1x1 ? More...
class	Dumux::VectorConverter< MultiTypeBlockVector, Scalar >
	A helper classe that converts a Dune::MultiTypeBlockVector into a plain Dune::BlockVector and transfers back values. More...
class	Dumux::LinearPDESolver< Assembler, LinearSolver >
	An implementation of a linear PDE solver. More...
class	Dumux::IterativePreconditionedSolverImpl
	A general solver backend allowing arbitrary preconditioners and solvers. More...
class	Dumux::ILUnBiCGSTABBackend
	Sequential ILU(n)-preconditioned BiCSTAB solver. More...
class	Dumux::SORBiCGSTABBackend
	Sequential SOR-preconditioned BiCSTAB solver. More...
class	Dumux::SSORBiCGSTABBackend
	Sequential SSOR-preconditioned BiCGSTAB solver. More...
class	Dumux::GSBiCGSTABBackend
	Sequential GS-preconditioned BiCGSTAB solver. More...
class	Dumux::JacBiCGSTABBackend
	Sequential Jacobi-preconditioned BiCSTAB solver. More...
class	Dumux::ILUnCGBackend
	Sequential ILU(n)-preconditioned CG solver. More...
class	Dumux::SORCGBackend
	Sequential SOR-preconditioned CG solver. More...
class	Dumux::SSORCGBackend
	Sequential SSOR-preconditioned CG solver. More...
class	Dumux::GSCGBackend
	Sequential GS-preconditioned CG solver. More...
class	Dumux::JacCGBackend
	Sequential Jacobi-preconditioned CG solver. More...
class	Dumux::SSORRestartedGMResBackend
	Sequential SSOR-preconditioned GMRes solver. More...
class	Dumux::ILU0BiCGSTABBackend
	Sequential ILU(0)-preconditioned BiCGSTAB solver. More...
class	Dumux::ILU0CGBackend
	Sequential ILU(0)-preconditioned CG solver. More...
class	Dumux::ILU0RestartedGMResBackend
	Sequential ILU0-preconditioned GMRes solver. More...
class	Dumux::ILUnRestartedGMResBackend
	Sequential ILU(n)-preconditioned GMRes solver. More...
class	Dumux::ExplicitDiagonalSolver
	Solver for simple block-diagonal matrices (e.g. from explicit time stepping schemes) More...
class	Dumux::BlockDiagILU0Preconditioner< M, X, Y, blockLevel >
	A simple ilu0 block diagonal preconditioner. More...
class	Dumux::BlockDiagILU0BiCGSTABSolver
	A simple ilu0 block diagonal preconditioned BiCGSTABSolver. More...
class	Dumux::BlockDiagAMGPreconditioner< M, X, Y, blockLevel >
	A simple ilu0 block diagonal preconditioner. More...
class	Dumux::BlockDiagAMGBiCGSTABSolver
	A simple ilu0 block diagonal preconditioned BiCGSTABSolver. More...
class	Dumux::LinearSolver
	Base class for linear solvers. More...
class	Dumux::VectorExchange< Mapper, Vector >
	A data handle class to exchange entries of a vector. More...

Typedefs
template<class TypeTag >
using	Dumux::AMGBackend = ParallelAMGBackend< GetPropType< TypeTag, Properties::GridView >, AmgTraits< GetPropType< TypeTag, Properties::JacobianMatrix >, GetPropType< TypeTag, Properties::SolutionVector >, GetPropType< TypeTag, Properties::GridGeometry > > >
	A linear solver based on the ISTL AMG preconditioner and the ISTL BiCGSTAB solver. More...

Functions
template<class Matrix , class Vector >
void	Dumux::scaleLinearSystem (Matrix &matrix, Vector &rhs)
	Scale the linear system by the inverse of its (block-)diagonal entries. More...

Typedef Documentation

AMGBackend

template<class TypeTag >

using Dumux::AMGBackend = typedef ParallelAMGBackend<GetPropType<TypeTag, Properties::GridView>, AmgTraits<GetPropType<TypeTag, Properties::JacobianMatrix>, GetPropType<TypeTag, Properties::SolutionVector>, GetPropType<TypeTag, Properties::GridGeometry> >>

A linear solver based on the ISTL AMG preconditioner and the ISTL BiCGSTAB solver.

Note

This is an adaptor using a TypeTag

Function Documentation

scaleLinearSystem()

template<class Matrix , class Vector >

void Dumux::scaleLinearSystem	(	Matrix &	matrix,
		Vector &	rhs
	)

Scale the linear system by the inverse of its (block-)diagonal entries.

Parameters

matrix	the matrix to scale
rhs	the right hand side vector to scale