ILU-preconditioned CG-based preconditioner. More...

#include <ILUPreconditioner.h>

Inheritance diagram for ILUCGPreconditioner:

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Collaboration diagram for ILUCGPreconditioner:

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Public Member Functions
	preconditionerRunTimeSelectionDefinitions (ILUCGPreconditioner, "ILU") ILUCGPreconditioner()

	ILUCGPreconditioner (CommandLine const &cmd, InputFile const &inp, Parallel const &par, AngularBasis const &ang, Bspline const &bspline_x_inner, Bspline const &bspline_x_full, Bspline const &bspline_y_inner, Bspline const &bspline_y_full)

	~ILUCGPreconditioner ()

virtual std::string	description () const
	Description of the preconditioner. More...

virtual void	setup ()
	Initialize the preconditioner. More...

virtual void	update (Real E)
	Update the preconditioner for the next energy. More...

virtual void	finish ()
	Clean up memory etc. More...

virtual void	CG_init (int iblock) const

virtual void	CG_prec (int iblock, const cArrayView r, cArrayView z) const

virtual void	CG_exit (int iblock) const

Public Member Functions inherited from CGPreconditioner
	preconditionerRunTimeSelectionDefinitions (CGPreconditioner, "cg") CGPreconditioner()

	CGPreconditioner (CommandLine const &cmd, InputFile const &inp, Parallel const &par, AngularBasis const &ang, Bspline const &bspline_inner, Bspline const &bspline_full, Bspline const &bspline_panel_x, Bspline const &bspline_panel_y)

virtual void	precondition (BlockArray< Complex > const &r, BlockArray< Complex > &z) const
	Precondition the equation. More...

int	solve_block (int ill, const cArrayView r, cArrayView z) const

virtual void	CG_mmul (int iblock, const cArrayView p, cArrayView q) const

virtual Real	CG_compute_norm (const cArrayView a) const

virtual Complex	CG_scalar_product (const cArrayView a, const cArrayView b) const

virtual void	CG_axby_operation (Complex a, cArrayView x, Complex b, const cArrayView y) const

virtual void	CG_constrain (cArrayView r) const

Public Member Functions inherited from NoPreconditioner
	preconditionerRunTimeSelectionDefinitions (NoPreconditioner, "none") NoPreconditioner()

	NoPreconditioner (CommandLine const &cmd, InputFile const &inp, Parallel const &par, AngularBasis const &ang, Bspline const &bspline_inner, Bspline const &bspline_full, Bspline const &bspline_panel_x, Bspline const &bspline_panel_y)

	~NoPreconditioner ()

virtual std::pair< int, int >	bstates (Real E, int l1, int l2) const
	Get the number of allowed bound states. More...

virtual void	rhs (BlockArray< Complex > &chi, int ienergy, int instate) const
	Calculate the right-hand side. More...

virtual void	multiply (BlockArray< Complex > const &p, BlockArray< Complex > &q, MatrixSelection::Selection tri=MatrixSelection::Both) const
	Multiply by the matrix equation. More...

BlockSymBandMatrix< Complex >	calc_A_block (int ill, int illp, bool twoel=true) const

RadialIntegrals const &	rad_inner () const

RadialIntegrals const &	rad_full () const

RadialIntegrals const &	rad_panel () const

Public Member Functions inherited from PreconditionerBase
	baseClassRunTimeSelectionDefinitions (PreconditionerBase,(CommandLine const &cmd, InputFile const &inp, Parallel const &par, AngularBasis const &ang, Bspline const &bspline_inner, Bspline const &bspline_full, Bspline const &bspline_panel_x, Bspline const &bspline_panel_y)) PreconditionerBase()
	Dummy default constructor needed by the run-time selection. More...

virtual	~PreconditionerBase ()
	Virtual destructor. More...

virtual void	verbose (bool b)
	Set verbosity level. More...

Protected Member Functions
void	reset_lu ()

Protected Attributes
std::vector< LUftData >	data_

std::vector< std::shared_ptr< LUft > >	lu_

Protected Attributes inherited from CGPreconditioner
iArray	n_

std::size_t	us_axby_

std::size_t	us_mmul_

std::size_t	us_norm_

std::size_t	us_prec_

std::size_t	us_spro_

Protected Attributes inherited from NoPreconditioner
Real	E_

CommandLine const *	cmd_

Parallel const *	par_

InputFile const *	inp_

AngularBasis const *	ang_

std::vector< BlockSymBandMatrix< Complex > >	A_blocks_

std::vector< std::vector< SymBandMatrix< Complex > > >	B1_blocks_

std::vector< std::vector< SymBandMatrix< Complex > > >	B2_blocks_

std::vector< CooMatrix< LU_int_t, Complex > >	Cu_blocks_

std::vector< CooMatrix< LU_int_t, Complex > >	Cl_blocks_

std::vector< BlockSymBandMatrix< Complex > >	E_blocks_

std::vector< CooMatrix< LU_int_t, Complex > >	Fu_blocks_

std::vector< CooMatrix< LU_int_t, Complex > >	Fl_blocks_

int	max_n_

std::vector< std::pair< int, int > >	Nchan_

RadialIntegrals *	rad_inner_

RadialIntegrals *	rad_full_

RadialIntegrals *	rad_panel_

std::array< Array< cArrays >, 2 >	Xp_

std::array< Array< cArrays >, 2 >	Sp_

std::array< cArrays, 2 >	Eb_

std::array< std::vector< HlData >, 2 >	Hl_

std::shared_ptr< LUft >	luS_

Protected Attributes inherited from PreconditionerBase
bool	verbose_

Detailed Description

Enhances CGPreconditioner conjugate gradients solver by incomplete LU factorization preconditioning. This is done by redefining virtual function CG_prec. The factorization is drop tolerance based and is computed by UMFPACK.

Constructor & Destructor Documentation

◆ ILUCGPreconditioner()

ILUCGPreconditioner::ILUCGPreconditioner	(	CommandLine const &	cmd,
		InputFile const &	inp,
		Parallel const &	par,
		AngularBasis const &	ang,
		Bspline const &	bspline_x_inner,
		Bspline const &	bspline_x_full,
		Bspline const &	bspline_y_inner,
		Bspline const &	bspline_y_full
	)

◆ ~ILUCGPreconditioner()

ILUCGPreconditioner::~ILUCGPreconditioner ( )

Member Function Documentation

◆ CG_exit()

void ILUCGPreconditioner::CG_exit ( int iblock ) const

virtual

Reimplemented from CGPreconditioner.

Reimplemented in HybCGPreconditioner.

◆ CG_init()

void ILUCGPreconditioner::CG_init ( int iblock ) const

virtual

Reimplemented from CGPreconditioner.

Reimplemented in HybCGPreconditioner.

◆ CG_prec()

void ILUCGPreconditioner::CG_prec	(	int	iblock,
		const cArrayView	r,
		cArrayView	z
	)		const

virtual

Reimplemented from CGPreconditioner.

Reimplemented in HybCGPreconditioner.

◆ description()

std::string ILUCGPreconditioner::description ( ) const

virtual

Simple documentation of the preconditioner.

Reimplemented from CGPreconditioner.

Reimplemented in HybCGPreconditioner.

◆ finish()

void ILUCGPreconditioner::finish ( )

virtual

This function is called when the preconditioner will no longer be used to release resources. To re-enable the same preconditioner then would require a new call to setup.

Reimplemented from CGPreconditioner.

Reimplemented in HybCGPreconditioner.

◆ preconditionerRunTimeSelectionDefinitions()

ILUCGPreconditioner::preconditionerRunTimeSelectionDefinitions	(	ILUCGPreconditioner	,
		"ILU"
	)

inline

◆ reset_lu()

void ILUCGPreconditioner::reset_lu ( )

protected

◆ setup()

void ILUCGPreconditioner::setup ( )

virtual

This function contains all computation intensive preparations for the preconditioner, e.g. computation of radial integrals. It may use only SMP environment.

Reimplemented from NoPreconditioner.

Reimplemented in HybCGPreconditioner.

◆ update()

void ILUCGPreconditioner::update ( Real E )

virtual

This function updates the preconditioner for another right hand side. It may use the MPI environment. The energy is in Ry.

Reimplemented from NoPreconditioner.

Reimplemented in HybCGPreconditioner.

Field Documentation

◆ data_

std::vector<LUftData> ILUCGPreconditioner::data_

mutableprotected

◆ lu_

std::vector<std::shared_ptr<LUft> > ILUCGPreconditioner::lu_

mutableprotected

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

src/preconditioners/ILUPreconditioner.h
src/preconditioners/ILUPreconditioner.cpp

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ ILUCGPreconditioner()

◆ ~ILUCGPreconditioner()

Member Function Documentation

◆ CG_exit()

◆ CG_init()

◆ CG_prec()

◆ description()

◆ finish()

◆ preconditionerRunTimeSelectionDefinitions()

◆ reset_lu()

◆ setup()

◆ update()

Field Documentation

◆ data_

◆ lu_