Algorithm for coarsening a graph with structured aggregation. More...

#include <MueLu_AggregationStructuredAlgorithm_decl.hpp>

Inheritance diagram for MueLu::AggregationStructuredAlgorithm< LocalOrdinal, GlobalOrdinal, Node >:

Classes
struct	computeGraphDataConstantFunctor

struct	computeGraphDataLinearFunctor

struct	computeGraphRowPtrFunctor

struct	fillAggregatesFunctor

Public Types
using	local_graph_type = typename LWGraph_kokkos::local_graph_type

using	non_const_row_map_type = typename local_graph_type::row_map_type::non_const_type

using	size_type = typename local_graph_type::size_type

using	entries_type = typename local_graph_type::entries_type

using	device_type = typename local_graph_type::device_type

using	execution_space = typename local_graph_type::device_type::execution_space

using	memory_space = typename local_graph_type::device_type::memory_space

using	LOVectorView = decltype(std::declval< LOVector >().getDeviceLocalView(Xpetra::Access::ReadWrite))

using	constIntTupleView = typename Kokkos::View< const int[3], device_type >

using	constLOTupleView = typename Kokkos::View< const LO[3], device_type >

Public Types inherited from MueLu::AggregationAlgorithmBase< LocalOrdinal, GlobalOrdinal, Node >
using	LWGraphHostType = LWGraph

using	AggStatHostType = Kokkos::View< unsigned *, typename LWGraphHostType::device_type >

using	LWGraphType = LWGraph_kokkos

using	AggStatType = Kokkos::View< unsigned *, typename LWGraphType::device_type >

Public Member Functions
std::string	description () const
	Return a simple one-line description of this object. More...

Public Member Functions inherited from MueLu::AggregationAlgorithmBase< LocalOrdinal, GlobalOrdinal, Node >
virtual	~AggregationAlgorithmBase ()
	Destructor. More...

virtual void	BuildAggregatesNonKokkos (const Teuchos::ParameterList &params, const LWGraphHostType &graph, Aggregates &aggregates, AggStatHostType &aggStat, LO &numNonAggregatedNodes) const =0
	BuildAggregatesNonKokkos routine. More...

virtual void	BuildAggregates (const Teuchos::ParameterList &params, const LWGraphType &graph, Aggregates &aggregates, AggStatType &aggStat, LO &numNonAggregatedNodes) const =0
	BuildAggregates routine. More...

Public Member Functions inherited from MueLu::BaseClass
virtual	~BaseClass ()
	Destructor. More...

Public Member Functions inherited from MueLu::VerboseObject
VerbLevel	GetVerbLevel () const
	Get the verbosity level. More...

void	SetVerbLevel (const VerbLevel verbLevel)
	Set the verbosity level of this object. More...

int	GetProcRankVerbose () const
	Get proc rank used for printing. Do not use this information for any other purpose. More...

int	SetProcRankVerbose (int procRank) const
	Set proc rank used for printing. More...

bool	IsPrint (MsgType type, int thisProcRankOnly=-1) const
	Find out whether we need to print out information for a specific message type. More...

Teuchos::FancyOStream &	GetOStream (MsgType type, int thisProcRankOnly=0) const
	Get an output stream for outputting the input message type. More...

Teuchos::FancyOStream &	GetBlackHole () const

	VerboseObject ()

virtual	~VerboseObject ()
	Destructor. More...

Public Member Functions inherited from Teuchos::VerboseObject< VerboseObject >
	VerboseObject (const EVerbosityLevel verbLevel=VERB_DEFAULT, const RCP< FancyOStream > &oStream=Teuchos::null)

virtual const VerboseObject &	setVerbLevel (const EVerbosityLevel verbLevel) const

virtual const VerboseObject &	setOverridingVerbLevel (const EVerbosityLevel verbLevel) const

virtual EVerbosityLevel	getVerbLevel () const

TEUCHOSPARAMETERLIST_LIB_DLL_EXPORT RCP< const ParameterList >	getValidVerboseObjectSublist ()

TEUCHOSPARAMETERLIST_LIB_DLL_EXPORT void	setupVerboseObjectSublist (ParameterList *paramList)

TEUCHOSPARAMETERLIST_LIB_DLL_EXPORT void	readVerboseObjectSublist (ParameterList paramList, RCP< FancyOStream > oStream, EVerbosityLevel *verbLevel)

void	readVerboseObjectSublist (ParameterList paramList, VerboseObject< ObjectType > verboseObject)

Public Member Functions inherited from Teuchos::VerboseObjectBase
virtual	~VerboseObjectBase ()

	VerboseObjectBase (const RCP< FancyOStream > &oStream=Teuchos::null)

virtual const VerboseObjectBase &	setOStream (const RCP< FancyOStream > &oStream) const

virtual const VerboseObjectBase &	setOverridingOStream (const RCP< FancyOStream > &oStream) const

virtual VerboseObjectBase &	setLinePrefix (const std::string &linePrefix)

virtual RCP< FancyOStream >	getOStream () const

virtual RCP< FancyOStream >	getOverridingOStream () const

virtual std::string	getLinePrefix () const

virtual OSTab	getOSTab (const int tabs=1, const std::string &linePrefix="") const

Public Member Functions inherited from MueLu::Describable
virtual	~Describable ()
	Destructor. More...

virtual std::string	ShortClassName () const
	Return the class name of the object, without template parameters and without namespace. More...

virtual void	describe (Teuchos::FancyOStream &out_arg, const VerbLevel verbLevel=Default) const

void	describe (Teuchos::FancyOStream &out, const Teuchos::EVerbosityLevel verbLevel=Teuchos::Describable::verbLevel_default) const
	Print the object with some verbosity level to an FancyOStream object. More...

Public Member Functions inherited from Teuchos::Describable
void	describe (std::ostream &out, const EVerbosityLevel verbLevel=verbLevel_default) const

	LabeledObject ()

virtual	~LabeledObject ()

virtual void	setObjectLabel (const std::string &objectLabel)

virtual std::string	getObjectLabel () const

DescribableStreamManipulatorState	describe (const Describable &describable, const EVerbosityLevel verbLevel=Describable::verbLevel_default)

std::ostream &	operator<< (std::ostream &os, const DescribableStreamManipulatorState &d)

Private Member Functions
void	ComputeGraphDataConstant (const LWGraph &graph, RCP< IndexManager > &geoData, const LO dofsPerNode, const int numInterpolationPoints, ArrayRCP< size_t > &nnzOnRow, Array< size_t > &rowPtr, Array< LO > &colIndex) const

void	ComputeGraphDataLinear (const LWGraph &graph, RCP< IndexManager > &geoData, const LO dofsPerNode, const int numInterpolationPoints, ArrayRCP< size_t > &nnzOnRow, Array< size_t > &rowPtr, Array< LO > &colIndex) const

Constructors/Destructors.
	AggregationStructuredAlgorithm (const RCP< const FactoryBase > &=Teuchos::null)
	Constructor. More...

virtual	~AggregationStructuredAlgorithm ()
	Destructor. More...

Aggregation methods.
void	BuildAggregatesNonKokkos (const Teuchos::ParameterList &params, const LWGraph &graph, Aggregates &aggregates, typename AggregationAlgorithmBase< LocalOrdinal, GlobalOrdinal, Node >::AggStatHostType &aggStat, LO &numNonAggregatedNodes) const
	Local aggregation. More...

void	BuildGraphOnHost (const LWGraph &graph, RCP< IndexManager > &geoData, const LO dofsPerNode, RCP< CrsGraph > &myGraph, RCP< const Map > &coarseCoordinatesFineMap, RCP< const Map > &coarseCoordinatesMap) const
	Local aggregation. More...

void	BuildAggregates (const Teuchos::ParameterList &params, const LWGraph_kokkos &graph, Aggregates &aggregates, typename AggregationAlgorithmBase< LocalOrdinal, GlobalOrdinal, Node >::AggStatType &aggStat, LO &numNonAggregatedNodes) const
	Build aggregates object. More...

void	BuildGraph (const LWGraph_kokkos &graph, RCP< IndexManager_kokkos > &geoData, const LO dofsPerNode, RCP< CrsGraph > &myGraph) const
	Build a CrsGraph instead of aggregates. More...

Additional Inherited Members
Static Public Member Functions inherited from MueLu::VerboseObject
static void	SetMueLuOStream (const Teuchos::RCP< Teuchos::FancyOStream > &mueluOStream)

static void	SetMueLuOFileStream (const std::string &filename)

static Teuchos::RCP < Teuchos::FancyOStream >	GetMueLuOStream ()

static void	SetDefaultVerbLevel (const VerbLevel defaultVerbLevel)
	Set the default (global) verbosity level. More...

static VerbLevel	GetDefaultVerbLevel ()
	Get the default (global) verbosity level. More...

Static Public Member Functions inherited from Teuchos::VerboseObject< VerboseObject >
static void	setDefaultVerbLevel (const EVerbosityLevel defaultVerbLevel)

static EVerbosityLevel	getDefaultVerbLevel ()

Static Public Member Functions inherited from Teuchos::VerboseObjectBase
static void	setDefaultOStream (const RCP< FancyOStream > &defaultOStream)

static RCP< FancyOStream >	getDefaultOStream ()

Static Public Attributes inherited from Teuchos::Describable
static const EVerbosityLevel	verbLevel_default

Protected Member Functions inherited from Teuchos::VerboseObject< VerboseObject >
void	initializeVerboseObject (const EVerbosityLevel verbLevel=VERB_DEFAULT, const RCP< FancyOStream > &oStream=Teuchos::null)

Protected Member Functions inherited from Teuchos::VerboseObjectBase
void	initializeVerboseObjectBase (const RCP< FancyOStream > &oStream=Teuchos::null)

virtual void	informUpdatedVerbosityState () const

Detailed Description

template<class LocalOrdinal = DefaultLocalOrdinal, class GlobalOrdinal = DefaultGlobalOrdinal, class Node = DefaultNode>
class MueLu::AggregationStructuredAlgorithm< LocalOrdinal, GlobalOrdinal, Node >

Algorithm for coarsening a graph with structured aggregation.

Idea

Use the logical indexing of the mesh to obtain a very regular aggregation pattern and maintain lines and planes of the problem as they might be useful to the smoother. This algorithms is also very easy to parallelize on node due to its very regular and predictible memory access patern.

Parameters

Parameter	Meaning
aggregation: coarsen	describe the coarsening rate to be used in each direction

Definition at line 48 of file MueLu_AggregationStructuredAlgorithm_decl.hpp.

Member Typedef Documentation

template<class LocalOrdinal = DefaultLocalOrdinal, class GlobalOrdinal = DefaultGlobalOrdinal, class Node = DefaultNode>

using MueLu::AggregationStructuredAlgorithm< LocalOrdinal, GlobalOrdinal, Node >::local_graph_type = typename LWGraph_kokkos::local_graph_type

Definition at line 53 of file MueLu_AggregationStructuredAlgorithm_decl.hpp.

template<class LocalOrdinal = DefaultLocalOrdinal, class GlobalOrdinal = DefaultGlobalOrdinal, class Node = DefaultNode>

using MueLu::AggregationStructuredAlgorithm< LocalOrdinal, GlobalOrdinal, Node >::non_const_row_map_type = typename local_graph_type::row_map_type::non_const_type

Definition at line 54 of file MueLu_AggregationStructuredAlgorithm_decl.hpp.

template<class LocalOrdinal = DefaultLocalOrdinal, class GlobalOrdinal = DefaultGlobalOrdinal, class Node = DefaultNode>

using MueLu::AggregationStructuredAlgorithm< LocalOrdinal, GlobalOrdinal, Node >::size_type = typename local_graph_type::size_type

Definition at line 55 of file MueLu_AggregationStructuredAlgorithm_decl.hpp.

template<class LocalOrdinal = DefaultLocalOrdinal, class GlobalOrdinal = DefaultGlobalOrdinal, class Node = DefaultNode>

using MueLu::AggregationStructuredAlgorithm< LocalOrdinal, GlobalOrdinal, Node >::entries_type = typename local_graph_type::entries_type

Definition at line 56 of file MueLu_AggregationStructuredAlgorithm_decl.hpp.

template<class LocalOrdinal = DefaultLocalOrdinal, class GlobalOrdinal = DefaultGlobalOrdinal, class Node = DefaultNode>

using MueLu::AggregationStructuredAlgorithm< LocalOrdinal, GlobalOrdinal, Node >::device_type = typename local_graph_type::device_type

Definition at line 57 of file MueLu_AggregationStructuredAlgorithm_decl.hpp.

template<class LocalOrdinal = DefaultLocalOrdinal, class GlobalOrdinal = DefaultGlobalOrdinal, class Node = DefaultNode>

using MueLu::AggregationStructuredAlgorithm< LocalOrdinal, GlobalOrdinal, Node >::execution_space = typename local_graph_type::device_type::execution_space

Definition at line 58 of file MueLu_AggregationStructuredAlgorithm_decl.hpp.

template<class LocalOrdinal = DefaultLocalOrdinal, class GlobalOrdinal = DefaultGlobalOrdinal, class Node = DefaultNode>

using MueLu::AggregationStructuredAlgorithm< LocalOrdinal, GlobalOrdinal, Node >::memory_space = typename local_graph_type::device_type::memory_space

Definition at line 59 of file MueLu_AggregationStructuredAlgorithm_decl.hpp.

template<class LocalOrdinal = DefaultLocalOrdinal, class GlobalOrdinal = DefaultGlobalOrdinal, class Node = DefaultNode>

using MueLu::AggregationStructuredAlgorithm< LocalOrdinal, GlobalOrdinal, Node >::LOVectorView = decltype(std::declval<LOVector>().getDeviceLocalView(Xpetra::Access::ReadWrite))

Definition at line 61 of file MueLu_AggregationStructuredAlgorithm_decl.hpp.

template<class LocalOrdinal = DefaultLocalOrdinal, class GlobalOrdinal = DefaultGlobalOrdinal, class Node = DefaultNode>

using MueLu::AggregationStructuredAlgorithm< LocalOrdinal, GlobalOrdinal, Node >::constIntTupleView = typename Kokkos::View<const int[3], device_type>

Definition at line 62 of file MueLu_AggregationStructuredAlgorithm_decl.hpp.

template<class LocalOrdinal = DefaultLocalOrdinal, class GlobalOrdinal = DefaultGlobalOrdinal, class Node = DefaultNode>

using MueLu::AggregationStructuredAlgorithm< LocalOrdinal, GlobalOrdinal, Node >::constLOTupleView = typename Kokkos::View<const LO[3], device_type>

Definition at line 63 of file MueLu_AggregationStructuredAlgorithm_decl.hpp.

Constructor & Destructor Documentation

template<class LocalOrdinal = DefaultLocalOrdinal, class GlobalOrdinal = DefaultGlobalOrdinal, class Node = DefaultNode>

MueLu::AggregationStructuredAlgorithm< LocalOrdinal, GlobalOrdinal, Node >::AggregationStructuredAlgorithm ( const RCP< const FactoryBase > & = Teuchos::null )

inline

Constructor.

Definition at line 68 of file MueLu_AggregationStructuredAlgorithm_decl.hpp.

template<class LocalOrdinal = DefaultLocalOrdinal, class GlobalOrdinal = DefaultGlobalOrdinal, class Node = DefaultNode>

virtual MueLu::AggregationStructuredAlgorithm< LocalOrdinal, GlobalOrdinal, Node >::~AggregationStructuredAlgorithm ( )

inlinevirtual

Destructor.

Definition at line 71 of file MueLu_AggregationStructuredAlgorithm_decl.hpp.

Member Function Documentation

template<class LocalOrdinal , class GlobalOrdinal , class Node >

void MueLu::AggregationStructuredAlgorithm< LocalOrdinal, GlobalOrdinal, Node >::BuildAggregatesNonKokkos	(	const Teuchos::ParameterList &	params,
		const LWGraph &	graph,
		Aggregates &	aggregates,
		typename AggregationAlgorithmBase< LocalOrdinal, GlobalOrdinal, Node >::AggStatHostType &	aggStat,
		LO &	numNonAggregatedNodes
	)		const

Local aggregation.

Definition at line 35 of file MueLu_AggregationStructuredAlgorithm_def.hpp.

template<class LocalOrdinal , class GlobalOrdinal , class Node >

void MueLu::AggregationStructuredAlgorithm< LocalOrdinal, GlobalOrdinal, Node >::BuildGraphOnHost	(	const LWGraph &	graph,
		RCP< IndexManager > &	geoData,
		const LO	dofsPerNode,
		RCP< CrsGraph > &	myGraph,
		RCP< const Map > &	coarseCoordinatesFineMap,
		RCP< const Map > &	coarseCoordinatesMap
	)		const

Local aggregation.

Definition at line 104 of file MueLu_AggregationStructuredAlgorithm_def.hpp.

template<class LocalOrdinal , class GlobalOrdinal , class Node >

void MueLu::AggregationStructuredAlgorithm< LocalOrdinal, GlobalOrdinal, Node >::BuildAggregates	(	const Teuchos::ParameterList &	params,
		const LWGraph_kokkos &	graph,
		Aggregates &	aggregates,
		typename AggregationAlgorithmBase< LocalOrdinal, GlobalOrdinal, Node >::AggStatType &	aggStat,
		LO &	numNonAggregatedNodes
	)		const

Build aggregates object.

Definition at line 391 of file MueLu_AggregationStructuredAlgorithm_def.hpp.

template<class LocalOrdinal , class GlobalOrdinal , class Node >

void MueLu::AggregationStructuredAlgorithm< LocalOrdinal, GlobalOrdinal, Node >::BuildGraph	(	const LWGraph_kokkos &	graph,
		RCP< IndexManager_kokkos > &	geoData,
		const LO	dofsPerNode,
		RCP< CrsGraph > &	myGraph
	)		const

Build a CrsGraph instead of aggregates.

Definition at line 431 of file MueLu_AggregationStructuredAlgorithm_def.hpp.

template<class LocalOrdinal = DefaultLocalOrdinal, class GlobalOrdinal = DefaultGlobalOrdinal, class Node = DefaultNode>

std::string MueLu::AggregationStructuredAlgorithm< LocalOrdinal, GlobalOrdinal, Node >::description ( ) const

inlinevirtual

Return a simple one-line description of this object.

Reimplemented from MueLu::Describable.

Definition at line 107 of file MueLu_AggregationStructuredAlgorithm_decl.hpp.

template<class LocalOrdinal , class GlobalOrdinal , class Node >

void MueLu::AggregationStructuredAlgorithm< LocalOrdinal, GlobalOrdinal, Node >::ComputeGraphDataConstant	(	const LWGraph &	graph,
		RCP< IndexManager > &	geoData,
		const LO	dofsPerNode,
		const int	numInterpolationPoints,
		ArrayRCP< size_t > &	nnzOnRow,
		Array< size_t > &	rowPtr,
		Array< LO > &	colIndex
	)		const

private

Definition at line 236 of file MueLu_AggregationStructuredAlgorithm_def.hpp.

template<class LocalOrdinal , class GlobalOrdinal , class Node >

void MueLu::AggregationStructuredAlgorithm< LocalOrdinal, GlobalOrdinal, Node >::ComputeGraphDataLinear	(	const LWGraph &	graph,
		RCP< IndexManager > &	geoData,
		const LO	dofsPerNode,
		const int	numInterpolationPoints,
		ArrayRCP< size_t > &	nnzOnRow,
		Array< size_t > &	rowPtr,
		Array< LO > &	colIndex
	)		const

private

Definition at line 295 of file MueLu_AggregationStructuredAlgorithm_def.hpp.

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

Classes

Public Types

Public Member Functions

Private Member Functions

Constructors/Destructors.

Aggregation methods.

Additional Inherited Members

Detailed Description

template<class LocalOrdinal = DefaultLocalOrdinal, class GlobalOrdinal = DefaultGlobalOrdinal, class Node = DefaultNode> class MueLu::AggregationStructuredAlgorithm< LocalOrdinal, GlobalOrdinal, Node >

Idea

Parameters

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

template<class LocalOrdinal = DefaultLocalOrdinal, class GlobalOrdinal = DefaultGlobalOrdinal, class Node = DefaultNode>
class MueLu::AggregationStructuredAlgorithm< LocalOrdinal, GlobalOrdinal, Node >