internal::SolverGMRESImplementation::TmpVectors< VectorType > Class Template Reference

#include <deal.II/lac/solver_gmres.h>

Public Member Functions
	TmpVectors (const unsigned int max_size, VectorMemory< VectorType > &vmem)
	~TmpVectors ()=default
VectorType &	operator[] (const unsigned int i) const
VectorType &	operator() (const unsigned int i, const VectorType &temp)
unsigned int	size () const

Private Attributes
VectorMemory< VectorType > &	mem
std::vector< typename VectorMemory< VectorType >::Pointer >	data

Detailed Description

template<typename VectorType>
class internal::SolverGMRESImplementation::TmpVectors< VectorType >

Class to hold temporary vectors. This class automatically allocates a new vector, once it is needed.

A future version should also be able to shift through vectors automatically, avoiding restart.

Definition at line 74 of file solver_gmres.h.

Constructor & Destructor Documentation

TmpVectors()

template<typename VectorType >

internal::SolverGMRESImplementation::TmpVectors< VectorType >::TmpVectors	(	const unsigned int	max_size,
		VectorMemory< VectorType > &	vmem
	)

Constructor. Prepares an array of VectorType of length max_size.

~TmpVectors()

template<typename VectorType >

internal::SolverGMRESImplementation::TmpVectors< VectorType >::~TmpVectors ( )

default

Destructor. Delete all allocated vectors.

Member Function Documentation

operator[]()

template<typename VectorType >

VectorType & internal::SolverGMRESImplementation::TmpVectors< VectorType >::operator[]

(

const unsigned int

i

)

const

Get vector number i. If this vector was unused before, an error occurs.

operator()()

template<typename VectorType >

VectorType & internal::SolverGMRESImplementation::TmpVectors< VectorType >::operator()	(	const unsigned int	i,
		const VectorType &	temp
	)

Get vector number i. Allocate it if necessary.

If a vector must be allocated, temp is used to reinit it to the proper dimensions.

size()

template<typename VectorType >

unsigned int internal::SolverGMRESImplementation::TmpVectors< VectorType >::size

(

)

const

Return size of data vector. It is used in the solver to store the Arnoldi vectors.

Member Data Documentation

mem

template<typename VectorType >

VectorMemory<VectorType>& internal::SolverGMRESImplementation::TmpVectors< VectorType >::mem

private

Pool where vectors are obtained from.

Definition at line 116 of file solver_gmres.h.

data

template<typename VectorType >

std::vector<typename VectorMemory<VectorType>::Pointer> internal::SolverGMRESImplementation::TmpVectors< VectorType >::data

private

Field for storing the vectors.

Definition at line 121 of file solver_gmres.h.

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

• include/deal.II/lac/solver_gmres.h