Dune::ILU Namespace Reference

Classes
struct	CRS
	a simple compressed row storage matrix class More...

Functions
template<class M >
void	blockILU0Decomposition (M &A)
	compute ILU decomposition of A. A is overwritten by its decomposition
template<class M , class X , class Y >
void	blockILUBacksolve (const M &A, X &v, const Y &d)
	LU backsolve with stored inverse.
template<class M >
M::field_type &	firstMatrixElement (M &A, typename std::enable_if_t<!Dune::IsNumber< M >::value > *sfinae=nullptr)
template<class K >
K &	firstMatrixElement (K &A, typename std::enable_if_t< Dune::IsNumber< K >::value > *sfinae=nullptr)
template<class K , int n, int m>
K &	firstMatrixElement (FieldMatrix< K, n, m > &A)
template<class M >
void	blockILUDecomposition (const M &A, int n, M &ILU)
template<class M , class CRS , class InvVector >
void	convertToCRS (const M &A, CRS &lower, CRS &upper, InvVector &inv)
	convert ILU decomposition into CRS format for lower and upper triangular and inverse.
template<class CRS , class InvVector , class X , class Y >
void	blockILUBacksolve (const CRS &lower, const CRS &upper, const InvVector &inv, X &v, const Y &d)
	LU backsolve with stored inverse in CRS format for lower and upper triangular.

Function Documentation

blockILU0Decomposition()

template<class M >

void Dune::ILU::blockILU0Decomposition

(

M &

A

)

compute ILU decomposition of A. A is overwritten by its decomposition

blockILUBacksolve() [1/2]

template<class CRS , class InvVector , class X , class Y >

void Dune::ILU::blockILUBacksolve	(	const CRS &	lower,
		const CRS &	upper,
		const InvVector &	inv,
		X &	v,
		const Y &	d
	)

LU backsolve with stored inverse in CRS format for lower and upper triangular.

blockILUBacksolve() [2/2]

template<class M , class X , class Y >

void Dune::ILU::blockILUBacksolve	(	const M &	A,
		X &	v,
		const Y &	d
	)

LU backsolve with stored inverse.

blockILUDecomposition()

template<class M >

void Dune::ILU::blockILUDecomposition	(	const M &	A,
		int	n,
		M &	ILU
	)

ILU decomposition of order n Computes ILU decomposition of order n. The matrix ILU should be an empty matrix in row_wise creation mode. This allows the user to either specify the number of nonzero elements or to determine it automatically at run-time.

convertToCRS()

template<class M , class CRS , class InvVector >

void Dune::ILU::convertToCRS	(	const M &	A,
		CRS &	lower,
		CRS &	upper,
		InvVector &	inv
	)

convert ILU decomposition into CRS format for lower and upper triangular and inverse.

firstMatrixElement() [1/3]

template<class K , int n, int m>

K & Dune::ILU::firstMatrixElement

(

FieldMatrix< K, n, m > &

A

)

firstMatrixElement() [2/3]

template<class K >

K & Dune::ILU::firstMatrixElement	(	K &	A,
		typename std::enable_if_t< Dune::IsNumber< K >::value > *	sfinae = nullptr
	)

firstMatrixElement() [3/3]

template<class M >

M::field_type & Dune::ILU::firstMatrixElement	(	M &	A,
		typename std::enable_if_t<!Dune::IsNumber< M >::value > *	sfinae = nullptr
	)