PoissonOp Class Reference

one-sided differencing version of poisson operator More...

#include <PoissonOp.H>

Inheritance diagram for PoissonOp:

[legend]Collaboration diagram for PoissonOp:

[legend]List of all members.

Public Member Functions
	PoissonOp ()
	Default constructor.
	~PoissonOp ()
	Destructor.
virtual LevelOp *	new_levelop () const
	Virtual constructor workaround.
virtual bool	isDefined () const
	Has this object been defined?
void	define (const DisjointBoxLayout &a_grids, const DisjointBoxLayout *a_baseBAPtr, Real a_dxLevel, int a_refRatio, const ProblemDomain &a_domain, bool a_homogeneousOnly=false, int a_ncomp=1)
	Full define function.
void	define (const LevelOp *a_opfine, int a_reftoFine)
	Full define function. Define from finer levelop.
void	define (const DisjointBoxLayout &a_grids, const DisjointBoxLayout *a_baseBAPtr, Real a_dxLevel, int a_refRatio, const Box &a_domain, bool a_homogeneousOnly=false, int a_ncomp=1)
	Full define function (Deprecated -- use ProblemDomain version).
void	smooth (LevelData< FArrayBox > &a_phi, const LevelData< FArrayBox > &a_rhs)
	Smoother.
virtual void	levelPreconditioner (LevelData< FArrayBox > &a_phihat, const LevelData< FArrayBox > &a_rhshat)
	Apply preconditioning to the solution on this level.
void	applyOpI (LevelData< FArrayBox > &a_phi, const LevelData< FArrayBox > *a_phicPtr, LevelData< FArrayBox > &a_lofPhi)
	Evaluate Operator, inhomogeneous boundary conditions.
void	applyOpIcfHphys (LevelData< FArrayBox > &a_phi, const LevelData< FArrayBox > *a_phicPtr, LevelData< FArrayBox > &a_lofPhi)
	Evaluate Operator, mixed boundary conditions.
void	applyOpH (LevelData< FArrayBox > &a_phi, LevelData< FArrayBox > &a_lofPhi)
	Evaluate Operator using homogeneous boundary conditions.
void	CFInterp (LevelData< FArrayBox > &a_phif, const LevelData< FArrayBox > &a_phic)
	Coarse / Fine interpolation operator.
void	applyOpHcfIphys (LevelData< FArrayBox > &a_phi, LevelData< FArrayBox > &a_lOfPhi)
	Evaluate Operator.
void	homogeneousCFInterp (LevelData< FArrayBox > &a_phif)
	Homogeneous coarse/fine interpolation operator.
void	setDomainGhostBC (const DomainGhostBC &a_dombcin)
	Set physical boundary condition types.
void	setBottomSmoother (const BaseBottomSmoother &a_bottomSmoother)
	Set the bottom smoother to use in solve.
void	homogeneousCFInterp (LevelData< FArrayBox > &a_phif, const DataIndex &a_datInd, int a_idir, Side::LoHiSide a_hiorlo)
	Does homogeneous coarse/fine interpolation.
void	bottomSmoother (LevelData< FArrayBox > &a_phi, const LevelData< FArrayBox > &a_rhs)
	This performs the smoothing at the bottom of a multigrid V-cycle.
void	getFlux (FArrayBox &a_fineFlux, const FArrayBox &a_data, const DataIndex &a_datInd, int a_dir)
	Get flux on this level in the direction dir on the given Box.
virtual void	setConvergenceMetric (Real a_metric, int a_comp)
	pass-through to bottom smoother
Protected Attributes
DomainGhostBC	m_domghostbc
ProblemDomain	m_domain
DisjointBoxLayout	m_grids
Copier	m_exchangeCopier
DisjointBoxLayout	m_baseBA
int	m_ncomp
int	m_refRatio
Real	m_dxLevel
Real	m_dxCrse
QuadCFInterp	m_quadCFI
BaseBottomSmoother *	m_bottomSmootherPtr
bool	m_isDefined
bool	m_isBCDefined
bool	m_ihcfiEnabled
LayoutData< CFIVS >	m_loCFIVS [SpaceDim]
LayoutData< CFIVS >	m_hiCFIVS [SpaceDim]

---

Detailed Description

one-sided differencing version of poisson operator

this class contains stuff to solve div (grad phi) = rhs

---

Constructor & Destructor Documentation

PoissonOp::PoissonOp (   )

Default constructor.

PoissonOp::~PoissonOp (   )

Destructor.

---

Member Function Documentation

void PoissonOp::applyOpH (  LevelData< FArrayBox > &  a_phi, LevelData< FArrayBox > &  a_lofPhi )  [virtual]

Evaluate Operator using homogeneous boundary conditions. Uses homogeneous form of both coarse-fine and physical boundary conditions. Implements LevelOp.

void PoissonOp::applyOpHcfIphys (  LevelData< FArrayBox > &  a_phi, LevelData< FArrayBox > &  a_lOfPhi )  [virtual]

Evaluate Operator. Uses homogeneous form of C/F boundary conditions. with inhomogeneous physical boundary conditions Implements LevelOp.

void PoissonOp::applyOpI (  LevelData< FArrayBox > &  a_phi, const LevelData< FArrayBox > *  a_phicPtr, LevelData< FArrayBox > &  a_lofPhi )  [virtual]

Evaluate Operator, inhomogeneous boundary conditions. Uses inhomogeneous C/F boundary conditions. and inhomogeneous phys boundary conditions Implements LevelOp.

void PoissonOp::applyOpIcfHphys (  LevelData< FArrayBox > &  a_phi, const LevelData< FArrayBox > *  a_phicPtr, LevelData< FArrayBox > &  a_lofPhi )  [virtual]

Evaluate Operator, mixed boundary conditions. Uses inhomogeneous form of C/F boundary conditions. and homogeneous physical boundary conditions Implements LevelOp.

void PoissonOp::bottomSmoother (  LevelData< FArrayBox > &  a_phi, const LevelData< FArrayBox > &  a_rhs )  [virtual]

This performs the smoothing at the bottom of a multigrid V-cycle. Implements LevelOp.

void PoissonOp::CFInterp (  LevelData< FArrayBox > &  a_phif, const LevelData< FArrayBox > &  a_phic )  [virtual]

Coarse / Fine interpolation operator. Implements LevelOp.

void PoissonOp::define (  const DisjointBoxLayout &  a_grids, const DisjointBoxLayout *  a_baseBAPtr, Real  a_dxLevel, int  a_refRatio, const Box &  a_domain, bool  a_homogeneousOnly = false, int  a_ncomp = 1 )  [virtual]

Full define function (Deprecated -- use ProblemDomain version). Full define function. makes all coarse-fine information and sets internal variables Implements LevelOp.

void PoissonOp::define (  const LevelOp *  a_opfine, int  a_reftoFine )  [virtual]

Full define function. Define from finer levelop. Implements LevelOp.

void PoissonOp::define (  const DisjointBoxLayout &  a_grids, const DisjointBoxLayout *  a_baseBAPtr, Real  a_dxLevel, int  a_refRatio, const ProblemDomain &  a_domain, bool  a_homogeneousOnly = false, int  a_ncomp = 1 )  [virtual]

Full define function. Makes all coarse-fine information and sets internal variables Implements LevelOp.

void PoissonOp::getFlux (  FArrayBox &  a_fineFlux, const FArrayBox &  a_data, const DataIndex &  a_datInd, int  a_dir )  [virtual]

Get flux on this level in the direction dir on the given Box. The fluxes live on the cell faces with direction a_dir. Fluxes are computed for all interior edges of a_data. The flux fab is resized inside the routine. Implements LevelOp.

void PoissonOp::homogeneousCFInterp (  LevelData< FArrayBox > &  a_phif, const DataIndex &  a_datInd, int  a_idir, Side::LoHiSide  a_hiorlo )

Does homogeneous coarse/fine interpolation.

void PoissonOp::homogeneousCFInterp (  LevelData< FArrayBox > &  a_phif  )  [virtual]

Homogeneous coarse/fine interpolation operator. Implements LevelOp.

virtual bool PoissonOp::isDefined (   )  const [virtual]

Has this object been defined? Implements LevelOp. Reimplemented in VelocityPoissonOp.

virtual void PoissonOp::levelPreconditioner (  LevelData< FArrayBox > &  a_phihat, const LevelData< FArrayBox > &  a_rhshat )  [virtual]

Apply preconditioning to the solution on this level. Given rhshat, returns phihat from M(phihat) = rhshat Implements LevelOp.

virtual LevelOp* PoissonOp::new_levelop (   )  const [virtual]

Virtual constructor workaround. Implements LevelOp. Reimplemented in VelocityPoissonOp.

void PoissonOp::setBottomSmoother (  const BaseBottomSmoother &  a_bottomSmoother  )

Set the bottom smoother to use in solve.

virtual void PoissonOp::setConvergenceMetric (  Real  a_metric, int  a_comp )  [virtual]

pass-through to bottom smoother Implements LevelOp.

void PoissonOp::setDomainGhostBC (  const DomainGhostBC &  a_dombcin  )

Set physical boundary condition types.

void PoissonOp::smooth (  LevelData< FArrayBox > &  a_phi, const LevelData< FArrayBox > &  a_rhs )  [virtual]

Smoother. Assumes that problem has already been put in residual correction form, so that C/F boundary conditions are homogeneous. Implements LevelOp.

---

Member Data Documentation

DisjointBoxLayout PoissonOp::m_baseBA [protected]

DisjointBoxLayout for next coarser level this is == NULL if there is no coarser level

BaseBottomSmoother* PoissonOp::m_bottomSmootherPtr [protected]

Bottom smoother object

ProblemDomain PoissonOp::m_domain [protected]

Domain of fine grid

DomainGhostBC PoissonOp::m_domghostbc [protected]

Boundary conditons

Real PoissonOp::m_dxCrse [protected]

Mesh spacing at next coarser level

Real PoissonOp::m_dxLevel [protected]

Mesh spacing at this level

Copier PoissonOp::m_exchangeCopier [protected]

Copier object that knows how to perform exchange operations on LevelData objects defined on m_grids

DisjointBoxLayout PoissonOp::m_grids [protected]

The grids at the current level

LayoutData<CFIVS> PoissonOp::m_hiCFIVS[SpaceDim] [protected]

Coarse-fine stencils for homogeneous CFInterp

bool PoissonOp::m_ihcfiEnabled [protected]

Is inhomogeneous CF interpolation possible?

bool PoissonOp::m_isBCDefined [protected]

Has bc been defined?

bool PoissonOp::m_isDefined [protected]

Has full define function been called?

LayoutData<CFIVS> PoissonOp::m_loCFIVS[SpaceDim] [protected]

Coarse-fine stencils for homogeneous CFInterp

int PoissonOp::m_ncomp [protected]

Number of components

QuadCFInterp PoissonOp::m_quadCFI [protected]

int PoissonOp::m_refRatio [protected]

Refinement ratio between this and the next coarser level

---

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

• PoissonOp.H

---