#include <AMRFASMultiGrid.H>

Inheritance diagram for AMRFASMultiGrid< T >:

Public Member Functions
	AMRFASMultiGrid ()

virtual	~AMRFASMultiGrid ()

virtual void	define (const ProblemDomain &a_coarseDomain, AMRLevelOpFactory< T > &a_factory, LinearSolver< T > *a_bottomSolver, int a_numLevels)

virtual void	solveNoInit (Vector< T > &a_phi, const Vector< T > &a_rhs, int l_max, int l_base, bool a_zeroPhi=true, bool forceHomogeneous=false)

void	setCycleType (OLD_FASMG_type a_type)

void	setAvoidNorms (bool b=true)

void	setNumVcycles (int n)

Public Member Functions inherited from AMRMultiGrid< T >
	AMRMultiGrid ()

virtual	~AMRMultiGrid ()

void	outputAMR (Vector< T *> &a_data, string &a_name, int a_lmax, int a_lbase)

void	addInspector (RefCountedPtr< AMRMultiGridInspector< T > > &a_inspector)

virtual void	solve (Vector< T > &a_phi, const Vector< T > &a_rhs, int l_max, int l_base, bool a_zeroPhi=true, bool forceHomogeneous=false)

virtual void	solveNoInitResid (Vector< T > &a_phi, Vector< T > &a_finalResid, const Vector< T *> &a_rhs, int l_max, int l_base, bool a_zeroPhi=true, bool forceHomogeneous=false)
	use if you want final residual More...

void	relaxOnlyHomogeneous (Vector< T > &a_phi, const Vector< T > &a_rhs, int l_max, int l_base)

virtual void	AMRVCycle (Vector< T > &a_correction, Vector< T > &a_residual, int l, int l_max, int l_base)

void	setMGCycle (int a_numMG)

void	revert (const Vector< T > &a_phi, const Vector< T > &a_rhs, int l_max, int l_base)

AMRLevelOp< T > &	levelOp (int level)

Real	computeAMRResidual (Vector< T > &a_resid, Vector< T > &a_phi, const Vector< T *> &a_rhs, int l_max, int l_base, bool a_homogeneousBC=false, bool a_computeNorm=true)

Real	computeAMRResidual (Vector< T > &a_phi, const Vector< T > &a_rhs, int l_max, int l_min)

void	computeAMROperator (Vector< T > &a_lph, Vector< T > &a_phi, int l_max, int l_base, bool a_homogeneousBC=false)

Vector< MGLevelOp< T > *>	getAllOperators ()

Vector< MGLevelOp< T > *>	getOperatorsOp ()

Vector< Vector< MGLevelOp< T > *> >	getOperatorsMG ()

Vector< AMRLevelOp< T > *> &	getAMROperators ()

void	setSolverParameters (const int &a_pre, const int &a_post, const int &a_bottom, const int &a_numMG, const int &a_iterMax, const Real &a_eps, const Real &a_hang, const Real &a_normThresh)

void	setBottomSolver (int l_max, int l_base)
	set up bottom solver for internal MG solver More...

void	setBottomSolverEpsCushion (Real a_bottomSolverEpsCushion)

void	getInfo () const
	Dump out the state of the solver. AMR levels, MG levels, bottom solver, box counts, etc. More...

Public Attributes
int	m_iter

Real	m_initial_rnorm

Real	m_rnorm

Public Attributes inherited from AMRMultiGrid< T >
Real	m_eps

Real	m_hang

Real	m_normThresh

bool	m_solverParamsSet

int	m_imin

int	m_iterMax

int	m_iterMin

int	m_verbosity

int	m_exitStatus

int	m_pre

int	m_post

int	m_bottom

int	m_numMG

int	m_maxDepth
	max no. of coarsenings – -1 (default) means coarsen as far as possible More...

Real	m_convergenceMetric

Real	m_initial_rnorm
	initial residual from this solve More...

Real	m_bottomSolverEpsCushion

Private Member Functions
virtual void	FMG (Vector< T > &a_phi, const Vector< T > &a_rhs, int l, int l_max, int l_base)

virtual void	VCycle (Vector< T > &a_phi, const Vector< T > &a_rhs, int l, int l_max, int l_base)

virtual void	init (const Vector< T > &a_phi, const Vector< T > &a_rhs, int l_max, int l_base)

void	clear_private ()

Private Attributes
OLD_FASMG_type	m_type

bool	m_avoid_norms

int	m_numVcycles

Vector< Copier >	m_HOCopier

Vector< Copier >	m_revHOCopier

Vector< Copier >	m_HOCornerCopier

ProblemDomain	m_coarseDomain

Additional Inherited Members
Protected Member Functions inherited from AMRMultiGrid< T >
void	relax (T &phi, T &R, int depth, int nRelax=2)

void	computeAMRResidualLevel (Vector< T > &a_resid, Vector< T > &a_phi, const Vector< T *> &a_rhs, int l_max, int l_base, int ilev, bool a_homogeneousBC)

void	clear ()

Protected Attributes inherited from AMRMultiGrid< T >
Vector< AMRLevelOp< T > * >	m_op

Vector< MultiGrid< T > * >	m_mg

Vector< T * >	m_correction

Vector< T * >	m_residual

Vector< T * >	m_resC

Vector< Copier >	m_resCopier

Vector< Copier >	m_reverseCopier

NoOpSolver< T >	m_nosolve

LinearSolver< T > *	m_bottomSolver

Vector< char >	m_hasInitBeenCalled

Detailed Description

template<class T>
class AMRFASMultiGrid< T >

Class to solve elliptic equations using the FAS multigrid

Constructor & Destructor Documentation

◆ AMRFASMultiGrid()

template<class T >

AMRFASMultiGrid< T >::AMRFASMultiGrid ( )

References AMRFASMultiGrid< T >::m_avoid_norms, AMRFASMultiGrid< T >::m_numVcycles, AMRFASMultiGrid< T >::m_type, and VCYCLE.

◆ ~AMRFASMultiGrid()

template<class T >

AMRFASMultiGrid< T >::~AMRFASMultiGrid ( )

virtual

References CH_TIME, and AMRFASMultiGrid< T >::clear_private().

Member Function Documentation

◆ define()

template<class T >

void AMRFASMultiGrid< T >::define	(	const ProblemDomain &	a_coarseDomain,
		AMRLevelOpFactory< T > &	a_factory,
		LinearSolver< T > *	a_bottomSolver,
		int	a_numLevels
	)

virtual

Define the solver. a_coarseDomain is the index space on the coarsest AMR level. a_factory is the operator factory through which all special information is conveyed. a_bottomSolver is the solver to be used at the termination of multigrid coarsening. It is the client's responsibility to free up the dynamically-allocated memory. a_numLevels is the number of AMR levels.

Reimplemented from AMRMultiGrid< T >.

References CH_TIME, AMRMultiGrid< T >::define(), AMRFASMultiGrid< T >::m_coarseDomain, AMRFASMultiGrid< T >::m_HOCopier, AMRFASMultiGrid< T >::m_HOCornerCopier, AMRMultiGrid< T >::m_maxDepth, AMRMultiGrid< T >::m_mg, AMRMultiGrid< T >::m_nosolve, AMRMultiGrid< T >::m_op, AMRFASMultiGrid< T >::m_revHOCopier, ProblemDomain::refine(), AMRLevelOpFactory< T >::refToFiner(), and Vector< T >::resize().

◆ solveNoInit()

template<class T >

void AMRFASMultiGrid< T >::solveNoInit	(	Vector< T *> &	a_phi,
		const Vector< T *> &	a_rhs,
		int	l_max,
		int	l_base,
		bool	a_zeroPhi = `true`,
		bool	forceHomogeneous = `false`
	)