Copier Class Reference

#include <Copier.H>

Inheritance diagram for Copier:

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Collaboration diagram for Copier:

[legend]

List of all members.

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Detailed Description

A strange but true thing to make copying from one boxlayoutdata to another fast.

class to handle the organization of data from a LevelData to a BoxLayoutData defined over the same index space. The idea behind this object is twofold: A) there is a significant amount of information that can be computed once and reused from one copy to the next for a LevelData and BoxLayoutData that have unchanging BoxLayouts underneath them. In these cases, LevelData::copyTo methods has an optional argument. That way, in cases where the operation is only performed a single time, we do not waste our time building optimizing data, etc. B) when we interface with KeLP, this class maps quite well with the existing KeLP API (class MotionPlan).

pains have been taken to not have this class be templated. Thus it does not actually perform the copying itself (which would require knowledge of the template class type). It provides an iterator interface to MotionItems that specify the required work. LevelData provides the copyTo methods.

Public Member Functions
	Copier ()
	null constructor, copy constructor and operator= can be compiler defined.
	Copier (const Copier &a_rhs)
	Copier (const DisjointBoxLayout &a_level, const BoxLayout &a_dest, bool a_exchange=false)
	Copier (const DisjointBoxLayout &a_level, const BoxLayout &a_dest, const ProblemDomain &a_domain, bool a_exchange=false)
	this constructor contains support for periodic BC's
	Copier (const DisjointBoxLayout &a_level, const BoxLayout &a_dest, const IntVect &a_destGhost, bool a_exchange=false)
	Copier to copy data into the valid and invalid regions of a_dest from a_level.
	Copier (const DisjointBoxLayout &a_level, const BoxLayout &a_dest, const ProblemDomain &a_domain, const IntVect &a_destGhost, bool a_exchange=false)
	Copier to copy data into the valid and invalid regions of a_dest from a_level with support for periodic BCs.
virtual	~Copier ()
virtual void	define (const DisjointBoxLayout &a_level, const BoxLayout &a_dest, bool a_exchange=false)
virtual void	define (const DisjointBoxLayout &a_level, const BoxLayout &a_dest, const ProblemDomain &a_domain, bool a_exchange=false)
	contains support for periodic BCs
virtual void	define (const DisjointBoxLayout &a_level, const BoxLayout &a_dest, const IntVect &a_destGhost, bool a_exchange=false)
virtual void	define (const BoxLayout &a_level, const BoxLayout &a_dest, const ProblemDomain &a_domain, const IntVect &a_destGhost, bool a_exchange=false)
	contains support for periodic BCs
virtual void	exchangeDefine (const DisjointBoxLayout &a_grids, const IntVect &a_ghost)
	alternative version of define for exchange copiers that uses new optimized neighborIterator
void	ghostDefine (const DisjointBoxLayout &a_src, const DisjointBoxLayout &a_dest, const ProblemDomain &a_domain, const IntVect &a_srcGhost)
	performs the computation necessary for moving from ghost+valid cells to valid.
virtual void	clear ()
Copier &	operator= (const Copier &b)
void	reverse ()
void	trimEdges (const DisjointBoxLayout &a_exchangedLayout, const IntVect &ghost)
void	coarsen (int a_refRatio)
int	print () const
bool	bufferAllocated () const
void	setBufferAllocated (bool arg) const
int	numLocalCellsToCopy () const
int	numFromCellsToCopy () const
int	numToCellsToCopy () const
bool	isDefined () const
Public Attributes
CopierBuffer	m_buffers
Protected Member Functions
void	trimMotion (const DisjointBoxLayout &a_exchangedLayout, const IntVect &a_ghost, const Vector< MotionItem * > &a_oldItems, Vector< MotionItem * > &a_newItems)
void	sort ()
const ProblemDomain &	getPhysDomain (const DisjointBoxLayout &a_level) const
Protected Attributes
Vector< MotionItem * >	m_localMotionPlan
Vector< MotionItem * >	m_fromMotionPlan
Vector< MotionItem * >	m_toMotionPlan
bool	buffersAllocated
DisjointBoxLayout	m_originPlan
BoxLayout	m_dest
bool	m_isDefined
Static Protected Attributes
static Pool	s_motionItemPool
Friends
class	CopyIterator
void	dumpmemoryatexit ()

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Constructor & Destructor Documentation

Copier::Copier

(

)

[inline]

null constructor, copy constructor and operator= can be compiler defined.

Copier::Copier

(

const Copier &

a_rhs

)

Copier::Copier	(	const DisjointBoxLayout &	a_level,
		const BoxLayout &	a_dest,
		bool	a_exchange = false
	)

Copier::Copier	(	const DisjointBoxLayout &	a_level,
		const BoxLayout &	a_dest,
		const ProblemDomain &	a_domain,
		bool	a_exchange = false
	)

this constructor contains support for periodic BC's

Copier::Copier	(	const DisjointBoxLayout &	a_level,
		const BoxLayout &	a_dest,
		const IntVect &	a_destGhost,
		bool	a_exchange = false
	)

Copier to copy data into the valid and invalid regions of a_dest from a_level.

Copier::Copier	(	const DisjointBoxLayout &	a_level,
		const BoxLayout &	a_dest,
		const ProblemDomain &	a_domain,
		const IntVect &	a_destGhost,
		bool	a_exchange = false
	)

Copier to copy data into the valid and invalid regions of a_dest from a_level with support for periodic BCs.

virtual Copier::~Copier

(

)

[virtual]

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Member Function Documentation

virtual void Copier::define	(	const DisjointBoxLayout &	a_level,
		const BoxLayout &	a_dest,
		bool	a_exchange = false
	)			[virtual]

Reimplemented in CornerCopier.

Referenced by LevelData< T >::exchange(), and BoxLayoutData< T >::generalCopyTo().

virtual void Copier::define	(	const DisjointBoxLayout &	a_level,
		const BoxLayout &	a_dest,
		const ProblemDomain &	a_domain,
		bool	a_exchange = false
	)			[virtual]

contains support for periodic BCs

Reimplemented in CornerCopier.

virtual void Copier::define	(	const DisjointBoxLayout &	a_level,
		const BoxLayout &	a_dest,
		const IntVect &	a_destGhost,
		bool	a_exchange = false
	)			[virtual]

Reimplemented in CornerCopier.

virtual void Copier::define	(	const BoxLayout &	a_level,
		const BoxLayout &	a_dest,
		const ProblemDomain &	a_domain,
		const IntVect &	a_destGhost,
		bool	a_exchange = false
	)			[virtual]

contains support for periodic BCs

Reimplemented in CornerCopier.

virtual void Copier::exchangeDefine	(	const DisjointBoxLayout &	a_grids,
		const IntVect &	a_ghost
	)			[virtual]

alternative version of define for exchange copiers that uses new optimized neighborIterator

void Copier::ghostDefine	(	const DisjointBoxLayout &	a_src,
		const DisjointBoxLayout &	a_dest,
		const ProblemDomain &	a_domain,
		const IntVect &	a_srcGhost
	)

performs the computation necessary for moving from ghost+valid cells to valid.

instead of copying from the valid of a_src to the valid+ghost of a_dest, this routine defines a Copier that moves data from the ghost+valid region of a_src to the valid region of a_dest. This is used by LevelFluxRegister.

virtual void Copier::clear

(

)

[virtual]

Reimplemented in CornerCopier.

Referenced by LevelData< T >::define().

Copier& Copier::operator=

(

const Copier &

b

)

The assignment operator.

void Copier::reverse

(

)

reverse the communication of this Copier.

Reimplemented in ReductionCopier, and SpreadingCopier.

void Copier::trimEdges	(	const DisjointBoxLayout &	a_exchangedLayout,
		const IntVect &	ghost
	)

Under the right algorithmic circumstances, a user might know that they no not need corner cells filled in exchanges, what they really need are just sufficient ghost cells in each CH_SPACEDIM direction for each valid cell. This operation eliminates copy operations that do not contribute to such cells. Under reasonable 3D configurations this can eliminate more than half the copy operations.

void Copier::coarsen

(

int

a_refRatio

)

int Copier::print

(

)

const

Reimplemented in ReductionCopier, and SpreadingCopier.

bool Copier::bufferAllocated

(

)

const

void Copier::setBufferAllocated

(

bool

arg

)

const

int Copier::numLocalCellsToCopy

(

)

const

int Copier::numFromCellsToCopy

(

)

const

int Copier::numToCellsToCopy

(

)

const

bool Copier::isDefined

(

)

const [inline]

References m_isDefined.

Referenced by LevelData< T >::exchange().

void Copier::trimMotion	(	const DisjointBoxLayout &	a_exchangedLayout,
		const IntVect &	a_ghost,
		const Vector< MotionItem * > &	a_oldItems,
		Vector< MotionItem * > &	a_newItems
	)			[protected]

void Copier::sort

(

)

[protected]

const ProblemDomain& Copier::getPhysDomain

(

const DisjointBoxLayout &

a_level

)

const [protected]

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Friends And Related Function Documentation

friend class CopyIterator [friend]

Reimplemented in ReductionCopier, and SpreadingCopier.

void dumpmemoryatexit

(

)

[friend]

Reimplemented in ReductionCopier, and SpreadingCopier.

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Member Data Documentation

CopierBuffer Copier::m_buffers

Vector<MotionItem*> Copier::m_localMotionPlan [protected]

Referenced by CopyIterator::CopyIterator().

Vector<MotionItem*> Copier::m_fromMotionPlan [protected]

Referenced by CopyIterator::CopyIterator().

Vector<MotionItem*> Copier::m_toMotionPlan [protected]

Referenced by CopyIterator::CopyIterator().

Pool Copier::s_motionItemPool [static, protected]

bool Copier::buffersAllocated [mutable, protected]

DisjointBoxLayout Copier::m_originPlan [protected]

BoxLayout Copier::m_dest [protected]

bool Copier::m_isDefined [protected]

Referenced by isDefined().

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

• Copier.H