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NodePoissonOp Class Reference

Node-centered Poisson operator. More...

#include <NodePoissonOp.H>

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List of all members.

Public Methods

 NodePoissonOp ()
 {\bf constructors, destructor and defines}

virtual NodeLevelOp * new_levelop () const
 ~NodePoissonOp ()
void define (const DisjointBoxLayout &a_grids, const DisjointBoxLayout *a_gridsCoarsePtr, Real a_dx, int a_refToCoarse, const ProblemDomain &a_domain, bool a_homogeneousOnly=false, int a_ncomp=1)
void define (const DisjointBoxLayout &a_grids, const DisjointBoxLayout *a_gridsCoarsePtr, Real a_dx, int a_refToCoarse, const Box &a_domain, bool a_homogeneousOnly=false, int a_ncomp=1)
void define (const NodeLevelOp *a_opfine, int a_refToFine)
virtual bool isDefined () const
void setBottomSmoother (const NodeBaseBottomSmoother &a_bottomSmoother)
void CFInterp (LevelData< NodeFArrayBox > &a_phi, const LevelData< NodeFArrayBox > &a_phiCoarse, bool a_inhomogeneous)
 {\bf data modification functions}

void homogeneousCFInterp (LevelData< NodeFArrayBox > &a_phi)
void smooth (LevelData< NodeFArrayBox > &a_phi, const LevelData< NodeFArrayBox > &a_rhs)
void applyOpI (LevelData< NodeFArrayBox > &a_LofPhi, LevelData< NodeFArrayBox > &a_phi, const LevelData< NodeFArrayBox > *a_phiCoarsePtr)
void applyOpH (LevelData< NodeFArrayBox > &a_LofPhi, LevelData< NodeFArrayBox > &a_phi)
void applyOpIcfHphys (LevelData< NodeFArrayBox > &a_LofPhi, LevelData< NodeFArrayBox > &a_phi, const LevelData< NodeFArrayBox > *a_phiCoarsePtr)
void applyOpHcfIphys (LevelData< NodeFArrayBox > &a_LofPhi, LevelData< NodeFArrayBox > &a_phi)
void bottomSmoother (LevelData< NodeFArrayBox > &a_phi, const LevelData< NodeFArrayBox > &a_rhs)
Given returns phihat from M (phihat)=rhshat

Public Attributes

Given rhshat

Detailed Description

Node-centered Poisson operator.

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

Constructor & Destructor Documentation

NodePoissonOp::NodePoissonOp (    ) 
 

{\bf constructors, destructor and defines}

Default constructor. User must subsequently call define().

NodePoissonOp::~NodePoissonOp (    ) 
 

Destructor.

Member Function Documentation

void NodePoissonOp::applyOpH (  LevelData< NodeFArrayBox > &    a_LofPhi,
LevelData< NodeFArrayBox > &    a_phi
)  [virtual]
 

Evaluate Operator, homogeneous C/F boundary conditions. homogeneous phys boundary conditions. \ The operator is evaluated on a_phi, after setting to zero at the coarse/fine boundary and applying homogeneous physical boundary conditions.

{\bf Arguments:}\ a_LofPhi (modified): the value of the operator, at interior nodes.\ a_phi (modified): the data at this level.\

Implements NodeLevelOp.

void NodePoissonOp::applyOpHcfIphys (  LevelData< NodeFArrayBox > &    a_LofPhi,
LevelData< NodeFArrayBox > &    a_phi
)  [virtual]
 

Evaluate Operator, homogeneous C/F boundary conditions. inhomogeneous phys boundary conditions. \ The operator is evaluated on a_phi, after setting to zero at the coarse/fine boundary and applying the physical boundary conditions.

{\bf Arguments:}\ a_LofPhi (modified): the value of the operator, at interior nodes.\ a_phi (modified): the data at this level.\

Implements NodeLevelOp.

void NodePoissonOp::applyOpI (  LevelData< NodeFArrayBox > &    a_LofPhi,
LevelData< NodeFArrayBox > &    a_phi,
const LevelData< NodeFArrayBox > *    a_phiCoarsePtr
)  [virtual]
 

Evaluate Operator, inhomogeneous C/F boundary conditions, inhomogeneous phys boundary conditions. \ The operator is evaluated on a_phi, after interpolating from a_phiCoarsePtr at the coarse/fine boundary and applying the physical boundary conditions.

{\bf Arguments:}\ a_LofPhi (modified): the value of the operator, at interior nodes.\ a_phi (modified): the data at this level. Interpolated from a_phiCoarsePtr at coarse/fine boundary.\ a_phiCoarsePtr (not modified): pointer to data at next coarser level.\

Implements NodeLevelOp.

void NodePoissonOp::applyOpIcfHphys (  LevelData< NodeFArrayBox > &    a_LofPhi,
LevelData< NodeFArrayBox > &    a_phi,
const LevelData< NodeFArrayBox > *    a_phiCoarsePtr
)  [virtual]
 

Evaluate Operator, inhomogeneous C/F boundary conditions, homogeneous phys boundary conditions. \ The operator is evaluated on a_phi, after interpolating from a_phiCoarsePtr at the coarse/fine boundary and applying homogeneous physical boundary conditions.

{\bf Arguments:}\ a_LofPhi (modified): the value of the operator, at interior nodes.\ a_phi (modified): the data at this level. Interpolated from a_phiCoarsePtr at coarse/fine boundary.\ a_phiCoarsePtr (not modified): pointer to data at next coarser level.\

Implements NodeLevelOp.

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

This does a GSRB Pre/Conditioned BiCGStab on a level for the bottom solver.

{\bf Arguments:}\ a_phi (modified): the data at this level.\ a_rhs (not modified): right-hand side.\

Implements NodeLevelOp.

void NodePoissonOp::CFInterp (  LevelData< NodeFArrayBox > &    a_phi,
const LevelData< NodeFArrayBox > &    a_phiCoarse,
bool    a_inhomogeneous
)  [virtual]
 

{\bf data modification functions}

Coarse / Fine (inhomogeneous) interpolation operator. Fill the nodes of a_phi on the coarse/fine interface with interpolated data from a_phiCoarse.

{\bf Arguments:}\ a_phi (modified): the data at this level.\ a_phiCoarse (not modified): the data at the next coarser level.\ a_inhomogeneous: apply inhomogeneous physical boundary conditions?\

Implements NodeLevelOp.

void NodePoissonOp::define (  const NodeLevelOp *    a_opfine,
int    a_refToFine
)  [virtual]
 

Full define function, based on a coarsening of the finer NodeLevelOp. Coarse-level grids are not set because only homogeneous interpolation is used.

{\bf Arguments:}\ a_opfine: pointer to NodeLevelOp at next finer level.\ a_refToFine: refinement ratio between a_opfine's and this level.\

Implements NodeLevelOp.

void NodePoissonOp::define (  const DisjointBoxLayout &    a_grids,
const DisjointBoxLayout *    a_gridsCoarsePtr,
Real    a_dx,
int    a_refToCoarse,
const Box &    a_domain,
bool    a_homogeneousOnly = false,
int    a_ncomp = 1
)  [virtual]
 

Implements NodeLevelOp.

void NodePoissonOp::define (  const DisjointBoxLayout &    a_grids,
const DisjointBoxLayout *    a_gridsCoarsePtr,
Real    a_dx,
int    a_refToCoarse,
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. The current level is taken to be the fine level.

{\bf Arguments:}\ a_grids: domain of this level.\ a_gridsCoarsePtr: pointer to next coarser level domain, or NULL if none.\ a_dx: mesh spacing at this level.\ a_refToCoarse: refinement ratio between this and next coarser level.\ a_domain: physical domain at this level.\ a_homogeneousOnly: only homogeneous coarse-fine interpolation?\ a_ncomp: number of components.\

Implements NodeLevelOp.

void NodePoissonOp::homogeneousCFInterp (  LevelData< NodeFArrayBox > &    a_phi )  [virtual]
 

Homogeneous coarse/fine interpolation operator. Fill the nodes of a_phi on the coarse/fine interface with zeroes.

{\bf Arguments:}\ a_phi (modified): the data at this level.\

Implements NodeLevelOp.

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

Returns true if this object was created with the defining constructor or if define() has been called.

Implements NodeLevelOp.

Given returns phihat from NodePoissonOp::M (  phihat    )  [inline]
 

virtual NodeLevelOp* NodePoissonOp::new_levelop (    )  const [virtual]
 

Virtual constructor workaround. Sets these to be the same as this:\

  • m_dombc, boundary condition;\
  • m_interpolationDegree, degree of c/f interpolation;\
  • m_bottomSmootherPtr, pointer to bottom smoother.

Implements NodeLevelOp.

void NodePoissonOp::setBottomSmoother (  const NodeBaseBottomSmoother &    a_bottomSmoother ) 
 

Set bottom smoother.

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

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

{\bf Arguments:}\ a_phi (modified): the data at this level.\ a_rhs (not modified): right-hand side.\

Implements NodeLevelOp.

Member Data Documentation

Given NodePoissonOp::rhshat
 

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