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NodeCGSmoother Class Reference

Implements CG as a bottom smoother for LevelOp-derived classes. More...

#include <NodeCGSmoother.H>

Inheritance diagram for NodeCGSmoother:

[legend]Collaboration diagram for NodeCGSmoother:

[legend]List of all members.

Public Methods
	NodeCGSmoother ()
	{\bf constructor and destructor}
virtual	~NodeCGSmoother ()
virtual NodeBaseBottomSmoother *	new_bottomSmoother () const
void	setMaxIter (int a_max_iter)
	{\bf parameter-setting functions}
void	setSolverTol (Real a_solverTol)
void	setVerbose (bool a_verbose)
virtual void	doBottomSmooth (LevelData< NodeFArrayBox > &a_phi, const LevelData< NodeFArrayBox > &a_rhs, NodeLevelOp *a_levelopPtr)
	{\bf data modification functions}
Protected Attributes
int	m_maxIter
Real	m_solverTol
Real	m_small
Real	m_converge_small
bool	m_verbose

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Detailed Description

Implements CG as a bottom smoother for LevelOp-derived classes.

The NodeCGSmoother class implements the CG algorithm for NodeLevelOp-derived classes

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Constructor & Destructor Documentation

NodeCGSmoother::NodeCGSmoother (    )

{\bf constructor and destructor} Default constructor.

virtual NodeCGSmoother::~NodeCGSmoother (    )  [virtual]

Destructor.

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Member Function Documentation

virtual void NodeCGSmoother::doBottomSmooth (  LevelData< NodeFArrayBox > &    a_phi, const LevelData< NodeFArrayBox > &    a_rhs, NodeLevelOp *    a_levelopPtr )  [virtual]

{\bf data modification functions} Perform CG smoothing of L(a_phi) = a_rhs; \ L is the operator defined in a_levelopPtr, and the preconditioner is a_levelopPtr->smooth(). {\bf Arguments:}\ a_phi (modified): the data at this level.\ a_rhs (not modified): right-hand side.\ a_levelopPtr (not modified): pointer to the operator.\ Implements NodeBaseBottomSmoother.

virtual NodeBaseBottomSmoother* NodeCGSmoother::new_bottomSmoother (    )  const [virtual]

this gets around the "no virtual constructor" rule Implements NodeBaseBottomSmoother.

void NodeCGSmoother::setMaxIter (  int    a_max_iter )

{\bf parameter-setting functions} set max number of CG iterations

void NodeCGSmoother::setSolverTol (  Real    a_solverTol )

set solver tolerance (amount residual must be decreased, etc)

void NodeCGSmoother::setVerbose (  bool    a_verbose )

set whether i/o is done when solving (default is false)

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Member Data Documentation

Real NodeCGSmoother::m_converge_small [protected]

int NodeCGSmoother::m_maxIter [protected]

Real NodeCGSmoother::m_small [protected]

Real NodeCGSmoother::m_solverTol [protected]

bool NodeCGSmoother::m_verbose [protected]

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

• NodeCGSmoother.H

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