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

#include <Copier.H>

Inheritance diagram for Copier:

Public Member Functions
	Copier ()
	null constructor, copy constructor and operator= can be compiler defined. More...

	Copier (const Copier &a_rhs)

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

	Copier (const DisjointBoxLayout &a_level, const BoxLayout &a_dest, const ProblemDomain &a_domain, bool a_exchange=false, IntVect a_shift=IntVect::Zero)
	this constructor contains support for periodic BC's More...

	Copier (const DisjointBoxLayout &a_level, const BoxLayout &a_dest, const IntVect &a_destGhost, bool a_exchange=false, IntVect a_shift=IntVect::Zero)
	Copier to copy data into the valid and invalid regions of a_dest from a_level. More...

	Copier (const DisjointBoxLayout &a_level, const BoxLayout &a_dest, const ProblemDomain &a_domain, const IntVect &a_destGhost, bool a_exchange=false, IntVect a_shift=IntVect::Zero)
	Copier to copy data into the valid and invalid regions of a_dest from a_level with support for periodic BCs. More...

virtual	~Copier ()

virtual void	define (const DisjointBoxLayout &a_level, const BoxLayout &a_dest, bool a_exchange=false, IntVect a_shift=IntVect::Zero)

virtual void	define (const DisjointBoxLayout &a_level, const BoxLayout &a_dest, const ProblemDomain &a_domain, bool a_exchange=false, IntVect a_shift=IntVect::Zero)
	contains support for periodic BCs More...

virtual void	define (const DisjointBoxLayout &a_level, const BoxLayout &a_dest, const IntVect &a_destGhost, bool a_exchange=false, IntVect a_shift=IntVect::Zero)

virtual void	define (const BoxLayout &a_level, const BoxLayout &a_dest, const ProblemDomain &a_domain, const IntVect &a_destGhost, bool a_exchange=false, IntVect a_shift=IntVect::Zero)
	contains support for periodic BCs More...

virtual void	exchangeDefine (const DisjointBoxLayout &a_grids, const IntVect &a_ghost)
	alternative version of define for exchange copiers that uses new optimized neighborIterator More...

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. More...

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 ()

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.

Constructor & Destructor Documentation

◆ Copier() [1/6]

Copier::Copier ( )

inline

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

References coarsen(), MotionItem::reverse(), and IntVect::Zero.

◆ Copier() [2/6]

Copier::Copier ( const Copier & a_rhs )

◆ Copier() [3/6]

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

◆ Copier() [4/6]

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

this constructor contains support for periodic BC's

◆ Copier() [5/6]

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

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

◆ Copier() [6/6]

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

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

◆ ~Copier()

virtual Copier::~Copier ( )

virtual

Member Function Documentation

◆ define() [1/4]

virtual void Copier::define	(	const DisjointBoxLayout &	a_level,
		const BoxLayout &	a_dest,
		bool	a_exchange = `false`,
		IntVect	a_shift = `IntVect::Zero`
	)

virtual

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

◆ define() [2/4]

virtual void Copier::define	(	const DisjointBoxLayout &	a_level,
		const BoxLayout &	a_dest,
		const ProblemDomain &	a_domain,
		bool	a_exchange = `false`,
		IntVect	a_shift = `IntVect::Zero`
	)

virtual

contains support for periodic BCs

◆ define() [3/4]

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

virtual

◆ define() [4/4]

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

virtual

contains support for periodic BCs

◆ exchangeDefine()

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

◆ ghostDefine()

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.

◆ clear()

virtual void Copier::clear ( )

virtual

Reimplemented in CornerCopier.

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

◆ operator=()

Copier& Copier::operator= ( const Copier & b )

The assignment operator.

◆ reverse()

void Copier::reverse ( )

reverse the communication of this Copier.

◆ trimEdges()

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.

◆ coarsen()

void Copier::coarsen ( int a_refRatio )

◆ print()

int Copier::print ( ) const

◆ bufferAllocated()

bool Copier::bufferAllocated ( ) const

◆ setBufferAllocated()

void Copier::setBufferAllocated ( bool arg ) const

◆ numLocalCellsToCopy()

int Copier::numLocalCellsToCopy ( ) const

◆ numFromCellsToCopy()

int Copier::numFromCellsToCopy ( ) const

◆ numToCellsToCopy()

int Copier::numToCellsToCopy ( ) const

◆ isDefined()

bool Copier::isDefined ( ) const

inline

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

◆ trimMotion()

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

protected

◆ sort()

void Copier::sort ( )

protected

◆ getPhysDomain()

const ProblemDomain& Copier::getPhysDomain ( const DisjointBoxLayout & a_level ) const

protected

Friends And Related Function Documentation

◆ CopyIterator

friend class CopyIterator

friend

◆ dumpmemoryatexit

void dumpmemoryatexit ( )

friend

Member Data Documentation

◆ m_buffers

CopierBuffer Copier::m_buffers

◆ m_localMotionPlan

Vector<MotionItem*> Copier::m_localMotionPlan

protected

Referenced by CopyIterator::CopyIterator().

◆ m_fromMotionPlan

Vector<MotionItem*> Copier::m_fromMotionPlan

protected

Referenced by CopyIterator::CopyIterator().

◆ m_toMotionPlan

Vector<MotionItem*> Copier::m_toMotionPlan

protected

Referenced by CopyIterator::CopyIterator().

◆ s_motionItemPool

Pool Copier::s_motionItemPool

staticprotected

◆ buffersAllocated

bool Copier::buffersAllocated

mutableprotected

◆ m_originPlan

DisjointBoxLayout Copier::m_originPlan

protected

◆ m_dest

BoxLayout Copier::m_dest

protected

◆ m_isDefined

bool Copier::m_isDefined

protected

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

Copier.H

Public Member Functions

Public Attributes

Protected Member Functions

Protected Attributes

Static Protected Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

◆ Copier() [1/6]

◆ Copier() [2/6]

◆ Copier() [3/6]

◆ Copier() [4/6]

◆ Copier() [5/6]

◆ Copier() [6/6]

◆ ~Copier()

Member Function Documentation

◆ define() [1/4]

◆ define() [2/4]

◆ define() [3/4]

◆ define() [4/4]

◆ exchangeDefine()

◆ ghostDefine()

◆ clear()

◆ operator=()

◆ reverse()

◆ trimEdges()

◆ coarsen()

◆ print()

◆ bufferAllocated()

◆ setBufferAllocated()

◆ numLocalCellsToCopy()

◆ numFromCellsToCopy()

◆ numToCellsToCopy()

◆ isDefined()

◆ trimMotion()

◆ sort()

◆ getPhysDomain()

Friends And Related Function Documentation

◆ CopyIterator

◆ dumpmemoryatexit

Member Data Documentation

◆ m_buffers

◆ m_localMotionPlan

◆ m_fromMotionPlan

◆ m_toMotionPlan

◆ s_motionItemPool

◆ buffersAllocated

◆ m_originPlan

◆ m_dest

◆ m_isDefined