Kaskade::NestedDissection< StorageScalar > Class Template Reference

a nested dissection factorization for symmetric positive definite sparse matrices More...

#include <domainDecompositionPreconditioner.hh>

Detailed Description

template<class StorageScalar>
class Kaskade::NestedDissection< StorageScalar >

a nested dissection factorization for symmetric positive definite sparse matrices

Template Parameters

StorageScalar

the floating point type used for storage of Cholesky factors

Definition at line 209 of file domainDecompositionPreconditioner.hh.

Public Member Functions
	NestedDissection ()=default
template<class SparseMatrix >
	NestedDissection (SparseMatrix const &A, size_t skipEntries, size_t skipDimension)
	Constructor. More...
template<class FactorizationScalar >
NestedDissection< StorageScalar > &	operator= (NestedDissection< FactorizationScalar > &&nd)
	move assignment from different storage scalar type More...
template<class T >
void	solve (T &y) const
size_t	storageSize () const
size_t	flops () const
size_t	size ()
	reports the total number of separators in this nested dissection More...

Friends
template<class FactorizationScalar >
class	NestedDissection

Constructor & Destructor Documentation

NestedDissection() [1/2]

template<class StorageScalar >

Kaskade::NestedDissection< StorageScalar >::NestedDissection ( )

default

NestedDissection() [2/2]

template<class StorageScalar >

template<class SparseMatrix >

Kaskade::NestedDissection< StorageScalar >::NestedDissection	(	SparseMatrix const &	A,
		size_t	skipEntries,
		size_t	skipDimension
	)

Constructor.

Member Function Documentation

flops()

template<class StorageScalar >

size_t Kaskade::NestedDissection< StorageScalar >::flops

(

)

const

operator=()

template<class StorageScalar >

template<class FactorizationScalar >

NestedDissection< StorageScalar > & Kaskade::NestedDissection< StorageScalar >::operator=

(

NestedDissection< FactorizationScalar > &&

nd

)

move assignment from different storage scalar type

Use this for compression after construction. E.g., the construction (including factorization) can be done with double precision, and the Cholesky factor be converted to single precision afterwards using this move assignment.

size()

template<class StorageScalar >

size_t Kaskade::NestedDissection< StorageScalar >::size ( )

inline

reports the total number of separators in this nested dissection

Definition at line 239 of file domainDecompositionPreconditioner.hh.

solve()

template<class StorageScalar >

template<class T >

void Kaskade::NestedDissection< StorageScalar >::solve

(

T &

y

)

const

storageSize()

template<class StorageScalar >

size_t Kaskade::NestedDissection< StorageScalar >::storageSize

(

)

const

Friends And Related Function Documentation

NestedDissection

template<class StorageScalar >

template<class FactorizationScalar >

friend class NestedDissection

friend

Definition at line 246 of file domainDecompositionPreconditioner.hh.

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

• domainDecompositionPreconditioner.hh