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MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node > Class Template Reference

Container class for aggregation information. More...

#include <MueLu_Aggregates_decl.hpp>

Inheritance diagram for MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >:
MueLu::BaseClass MueLu::VerboseObject MueLu::Describable Teuchos::VerboseObject< VerboseObject > Teuchos::Describable Teuchos::VerboseObjectBase Teuchos::LabeledObject

Public Types

using local_ordinal_type = LocalOrdinal
 
using global_ordinal_type = GlobalOrdinal
 
using execution_space = typename Node::execution_space
 
using node_type = Node
 
using device_type = typename Node::device_type
 
using range_type = Kokkos::RangePolicy< local_ordinal_type, execution_space >
 
using LO_view = Kokkos::View< local_ordinal_type *, device_type >
 
using aggregates_sizes_type = Kokkos::View< LocalOrdinal *, device_type >
 
using local_graph_type = typename LWGraph_kokkos::local_graph_type
 
using colors_view_type = Kokkos::View< typename local_graph_type::entries_type::data_type, typename local_graph_type::device_type::memory_space >
 

Public Member Functions

 Aggregates (const LWGraph &graph)
 Standard constructor for Aggregates structure. More...
 
 Aggregates (LWGraph_kokkos graph)
 Standard constructor for Aggregates structure. More...
 
 Aggregates (const RCP< const Map > &map)
 Constructor for Aggregates structure. More...
 
virtual ~Aggregates ()
 Destructor. More...
 
void SetNumAggregates (LO nAggregates)
 Set number of local aggregates on current processor. More...
 
void SetNumGlobalAggregates (GO nGlobalAggregates)
 Set number of global aggregates on current processor. More...
 
KOKKOS_INLINE_FUNCTION LO GetNumAggregates () const
 
KOKKOS_INLINE_FUNCTION void AggregatesCrossProcessors (const bool &flag)
 Record whether aggregates include DOFs from other processes. More...
 
KOKKOS_INLINE_FUNCTION bool AggregatesCrossProcessors () const
 Return false if and only if no aggregates include DOFs from other processes. More...
 
RCP< LOMultiVector > & GetVertex2AggIdNonConst ()
 Returns a nonconstant vector that maps local node IDs to local aggregates IDs. More...
 
RCP< LOVector > & GetProcWinnerNonConst ()
 Returns nonconstant vector that maps local node IDs to owning processor IDs. More...
 
const RCP< LOMultiVector > & GetVertex2AggId () const
 Returns constant vector that maps local node IDs to local aggregates IDs. More...
 
const RCP< LOVector > & GetProcWinner () const
 Returns constant vector that maps local node IDs to owning processor IDs. More...
 
bool IsRoot (LO i) const
 Returns true if node with given local node id is marked to be a root node. More...
 
void SetIsRoot (LO i, bool value=true)
 Set root node information. More...
 
const RCP< const Map > GetMap () const
 returns (overlapping) map of aggregate/node distribution More...
 
aggregates_sizes_type::const_type ComputeAggregateSizes (bool forceRecompute=false) const
 Compute sizes of aggregates. More...
 
Teuchos::ArrayRCP< LocalOrdinalComputeAggregateSizesArrayRCP (bool forceRecompute=false) const
 Compute sizes of aggregates. More...
 
local_graph_type GetGraph () const
 
void ComputeNodesInAggregate (LO_view &aggPtr, LO_view &aggNodes, LO_view &unaggregated) const
 Generates a compressed list of nodes in each aggregate, where the entries in aggNodes[aggPtr[i]] up to aggNodes[aggPtr[i+1]-1] contain the nodes in aggregate i. unaggregated contains the list of nodes which are, for whatever reason, not aggregated (e.g. Dirichlet) More...
 
GO GetNumGlobalAggregatesComputeIfNeeded ()
 Get global number of aggregates. 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::FancyOStreamGetOStream (MsgType type, int thisProcRankOnly=0) const
 Get an output stream for outputting the input message type. More...
 
Teuchos::FancyOStreamGetBlackHole () 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 VerboseObjectsetVerbLevel (const EVerbosityLevel verbLevel) const
 
virtual const VerboseObjectsetOverridingVerbLevel (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 VerboseObjectBasesetOStream (const RCP< FancyOStream > &oStream) const
 
virtual const VerboseObjectBasesetOverridingOStream (const RCP< FancyOStream > &oStream) const
 
virtual VerboseObjectBasesetLinePrefix (const std::string &linePrefix)
 
virtual RCP< FancyOStreamgetOStream () const
 
virtual RCP< FancyOStreamgetOverridingOStream () 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)
 

Set/Get Methods for specific aggregation data

RCP< IndexManager_kokkos > & GetIndexManagerKokkos ()
 Get the index manager used by structured aggregation algorithms. This has to be done by the aggregation factory. More...
 
void SetIndexManagerKokkos (RCP< IndexManager_kokkos > &geoDataKokkos)
 Set the index manager used by structured aggregation algorithms. This has to be done by the aggregation factory. More...
 
RCP< IndexManager > & GetIndexManager ()
 Get the index manager used by various aggregation algorithms. This has to be done by the aggregation factory. More...
 
void SetIndexManager (RCP< IndexManager > &geoData)
 Set the index manager used by various aggregation algorithms. This has to be done by the aggregation factory. More...
 
colors_view_typeGetGraphColors ()
 Get a distance 2 coloring of the underlying graph. The coloring is computed and set during Phase1 of aggregation. More...
 
void SetGraphColors (colors_view_type graphColors)
 Set a distance 2 coloring of the underlying graph. The coloring is computed and set during Phase1 of aggregation. More...
 
LO GetGraphNumColors ()
 Get the number of colors needed by the distance 2 coloring. More...
 
void SetGraphNumColors (const LO graphNumColors)
 Set the number of colors needed by the distance 2 coloring. More...
 

Overridden from Teuchos::Describable

LO numAggregates_
 Number of aggregates on this processor. More...
 
GO numGlobalAggregates_
 Number of global aggregates. More...
 
RCP< LOMultiVector > vertex2AggId_
 
RCP< LOVector > procWinner_
 
RCP< IndexManager_kokkosgeoDataKokkos_
 
RCP< IndexManagergeoData_
 
colors_view_type graphColors_
 
LO graphNumColors_
 
Teuchos::ArrayRCP< bool > isRoot_
 An ArrayRCP of booleans specifying if a local entry is an aggregate root. More...
 
bool aggregatesIncludeGhosts_
 Set to false iff aggregates do not include any DOFs belong to other processes. More...
 
aggregates_sizes_type aggregateSizes_
 Array of sizes of each local aggregate. More...
 
aggregates_sizes_type::HostMirror aggregateSizesHost_
 
local_graph_type graph_
 Aggregates represented as Kokkos graph type. More...
 
std::string description () const
 Return a simple one-line description of this object. More...
 
void print (Teuchos::FancyOStream &out, const Teuchos::EVerbosityLevel verbLevel=verbLevel_default) const
 Print the object with some verbosity level to an FancyOStream object. 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< FancyOStreamgetDefaultOStream ()
 
- 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, class GlobalOrdinal, class Node>
class MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >

Container class for aggregation information.

Structure holding aggregate information. Right now, nAggregates, IsRoot, Vertex2AggId, procWinner are populated. This allows us to look at a node and determine the aggregate to which it has been assigned and the id of the processor that owns this aggregate. It is not so easy to determine vertices within the kth aggregate or the size of the kth aggregate. Thus, it might be useful to have a secondary structure which would be a rectangular CrsGraph where rows (or vertices) correspond to aggregates and colunmns (or edges) correspond to nodes. While not strictly necessary, it might be convenient.

Definition at line 69 of file MueLu_Aggregates_decl.hpp.

Member Typedef Documentation

template<class LocalOrdinal, class GlobalOrdinal, class Node>
using MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::local_ordinal_type = LocalOrdinal

Definition at line 71 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
using MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::global_ordinal_type = GlobalOrdinal

Definition at line 72 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
using MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::execution_space = typename Node::execution_space

Definition at line 73 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
using MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::node_type = Node

Definition at line 74 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
using MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::device_type = typename Node::device_type

Definition at line 75 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
using MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::range_type = Kokkos::RangePolicy<local_ordinal_type, execution_space>

Definition at line 76 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
using MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::LO_view = Kokkos::View<local_ordinal_type*, device_type>

Definition at line 77 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
using MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::aggregates_sizes_type = Kokkos::View<LocalOrdinal*, device_type>

Definition at line 79 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
using MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::local_graph_type = typename LWGraph_kokkos::local_graph_type

Definition at line 87 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
using MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::colors_view_type = Kokkos::View<typename local_graph_type::entries_type::data_type, typename local_graph_type::device_type::memory_space>

Definition at line 89 of file MueLu_Aggregates_decl.hpp.

Constructor & Destructor Documentation

template<class LocalOrdinal , class GlobalOrdinal , class Node >
MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::Aggregates ( const LWGraph graph)

Standard constructor for Aggregates structure.

Standard constructor of aggregates takes a Graph object as parameter. Uses the graph.GetImportMap() to initialize the internal vector for mapping nodes to (local) aggregate ids as well as the mapping of node to the owning processor id.

Definition at line 27 of file MueLu_Aggregates_def.hpp.

template<class LocalOrdinal , class GlobalOrdinal , class Node >
MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::Aggregates ( LWGraph_kokkos  graph)

Standard constructor for Aggregates structure.

Standard constructor of aggregates takes a LWGraph object as parameter. Uses the graph.GetImportMap() to initialize the internal vector for mapping nodes to (local) aggregate ids as well as the mapping of node to the owning processor id.

Definition at line 45 of file MueLu_Aggregates_def.hpp.

template<class LocalOrdinal , class GlobalOrdinal , class Node >
MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::Aggregates ( const RCP< const Map > &  map)

Constructor for Aggregates structure.

This constructor takes a RCP pointer to a map which is used for the internal mappings of nodes to the (local) aggregate ids and the owning processor.

Definition at line 63 of file MueLu_Aggregates_def.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
virtual MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::~Aggregates ( )
inlinevirtual

Destructor.

Definition at line 119 of file MueLu_Aggregates_decl.hpp.

Member Function Documentation

template<class LocalOrdinal, class GlobalOrdinal, class Node>
RCP<IndexManager_kokkos>& MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::GetIndexManagerKokkos ( )
inline

Get the index manager used by structured aggregation algorithms. This has to be done by the aggregation factory.

Definition at line 127 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
void MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::SetIndexManagerKokkos ( RCP< IndexManager_kokkos > &  geoDataKokkos)
inline

Set the index manager used by structured aggregation algorithms. This has to be done by the aggregation factory.

Definition at line 132 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
RCP<IndexManager>& MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::GetIndexManager ( )
inline

Get the index manager used by various aggregation algorithms. This has to be done by the aggregation factory.

Definition at line 137 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
void MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::SetIndexManager ( RCP< IndexManager > &  geoData)
inline

Set the index manager used by various aggregation algorithms. This has to be done by the aggregation factory.

Definition at line 142 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
colors_view_type& MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::GetGraphColors ( )
inline

Get a distance 2 coloring of the underlying graph. The coloring is computed and set during Phase1 of aggregation.

Definition at line 147 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
void MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::SetGraphColors ( colors_view_type  graphColors)
inline

Set a distance 2 coloring of the underlying graph. The coloring is computed and set during Phase1 of aggregation.

Definition at line 152 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
LO MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::GetGraphNumColors ( )
inline

Get the number of colors needed by the distance 2 coloring.

Definition at line 156 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
void MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::SetGraphNumColors ( const LO  graphNumColors)
inline

Set the number of colors needed by the distance 2 coloring.

Definition at line 160 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
void MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::SetNumAggregates ( LO  nAggregates)
inline

Set number of local aggregates on current processor.

This has to be done by the aggregation routines.

Definition at line 168 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
void MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::SetNumGlobalAggregates ( GO  nGlobalAggregates)
inline

Set number of global aggregates on current processor.

This has to be done by the aggregation routines.returns the number of aggregates of the current processor. Note: could/should be renamed to GetNumLocalAggregates?

Definition at line 174 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
KOKKOS_INLINE_FUNCTION LO MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::GetNumAggregates ( ) const
inline

Definition at line 177 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
KOKKOS_INLINE_FUNCTION void MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::AggregatesCrossProcessors ( const bool &  flag)
inline

Record whether aggregates include DOFs from other processes.

Definition at line 182 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
KOKKOS_INLINE_FUNCTION bool MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::AggregatesCrossProcessors ( ) const
inline

Return false if and only if no aggregates include DOFs from other processes.

Used in construction of tentative prolongator to skip a communication phase.

Definition at line 190 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
RCP<LOMultiVector>& MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::GetVertex2AggIdNonConst ( )
inline

Returns a nonconstant vector that maps local node IDs to local aggregates IDs.

For local node ID i, the corresponding vector entry v[i] is the local aggregate id to which i belongs on the current processor.

Definition at line 198 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
RCP<LOVector>& MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::GetProcWinnerNonConst ( )
inline

Returns nonconstant vector that maps local node IDs to owning processor IDs.

For local node ID i, the corresponding vector entry v[i] is the owning processor ID.

Definition at line 204 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
const RCP<LOMultiVector>& MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::GetVertex2AggId ( ) const
inline

Returns constant vector that maps local node IDs to local aggregates IDs.

For local node ID i, the corresponding vector entry v[i] is the local aggregate id to which i belongs on the current processor.

Definition at line 209 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
const RCP<LOVector>& MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::GetProcWinner ( ) const
inline

Returns constant vector that maps local node IDs to owning processor IDs.

For local node ID i, the corresponding vector entry v[i] is the owning processor ID.

Definition at line 215 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
bool MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::IsRoot ( LO  i) const
inline

Returns true if node with given local node id is marked to be a root node.

Definition at line 218 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
void MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::SetIsRoot ( LO  i,
bool  value = true 
)
inline

Set root node information.

Used by aggregation methods only.

Definition at line 224 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal , class GlobalOrdinal , class Node >
const RCP< const Xpetra::Map< LocalOrdinal, GlobalOrdinal, Node > > MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::GetMap ( ) const

returns (overlapping) map of aggregate/node distribution

Definition at line 278 of file MueLu_Aggregates_def.hpp.

template<class LocalOrdinal , class GlobalOrdinal , class Node >
Aggregates< LocalOrdinal, GlobalOrdinal, Node >::aggregates_sizes_type::const_type MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::ComputeAggregateSizes ( bool  forceRecompute = false) const

Compute sizes of aggregates.

Returns the number of nodes in each aggregate in an array. If the aggregate sizes are not stored internally (which is the default), they are computed and returned. If the aggregate sizes have been stored internally, then they are not recomputed, but instead the stored sizes are returned.

Parameters
[in]forceRecomputeif true, force recomputation of the aggregate sizes.

Definition at line 81 of file MueLu_Aggregates_def.hpp.

template<class LocalOrdinal , class GlobalOrdinal , class Node >
Teuchos::ArrayRCP< LocalOrdinal > MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::ComputeAggregateSizesArrayRCP ( bool  forceRecompute = false) const

Compute sizes of aggregates.

Returns the number of nodes in each aggregate in an array. If the aggregate sizes are not stored internally (which is the default), they are computed and returned. If the aggregate sizes have been stored internally, then they are not recomputed, but instead the stored sizes are returned.

Parameters
[in]forceRecomputeif true, force recomputation of the aggregate sizes.

Definition at line 111 of file MueLu_Aggregates_def.hpp.

template<class LocalOrdinal , class GlobalOrdinal , class Node >
Aggregates< LocalOrdinal, GlobalOrdinal, Node >::local_graph_type MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::GetGraph ( ) const

Definition at line 132 of file MueLu_Aggregates_def.hpp.

template<class LocalOrdinal , class GlobalOrdinal , class Node >
void MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::ComputeNodesInAggregate ( LO_view aggPtr,
LO_view aggNodes,
LO_view unaggregated 
) const

Generates a compressed list of nodes in each aggregate, where the entries in aggNodes[aggPtr[i]] up to aggNodes[aggPtr[i+1]-1] contain the nodes in aggregate i. unaggregated contains the list of nodes which are, for whatever reason, not aggregated (e.g. Dirichlet)

Definition at line 192 of file MueLu_Aggregates_def.hpp.

template<class LocalOrdinal , class GlobalOrdinal , class Node >
GlobalOrdinal MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::GetNumGlobalAggregatesComputeIfNeeded ( )

Get global number of aggregates.

Definition at line 266 of file MueLu_Aggregates_def.hpp.

template<class LocalOrdinal , class GlobalOrdinal , class Node >
std::string MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::description ( ) const
virtual

Return a simple one-line description of this object.

Reimplemented from MueLu::Describable.

Definition at line 246 of file MueLu_Aggregates_def.hpp.

template<class LocalOrdinal , class GlobalOrdinal , class Node >
void MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::print ( Teuchos::FancyOStream out,
const Teuchos::EVerbosityLevel  verbLevel = verbLevel_default 
) const

Print the object with some verbosity level to an FancyOStream object.

Definition at line 254 of file MueLu_Aggregates_def.hpp.

Member Data Documentation

template<class LocalOrdinal, class GlobalOrdinal, class Node>
LO MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::numAggregates_
private

Number of aggregates on this processor.

Definition at line 273 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
GO MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::numGlobalAggregates_
private

Number of global aggregates.

Definition at line 274 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
RCP<LOMultiVector> MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::vertex2AggId_
private

vertex2AggId[k] gives a local id corresponding to the aggregate to which local id k has been assigned. While k is the local id on my processor (MyPID), vertex2AggId[k] is the local id on the processor which actually owns the aggregate.

Definition at line 280 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
RCP<LOVector> MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::procWinner_
private

If k is the local id on my processor (MyPID), the owning processor has the id given by procWinner[k]

Definition at line 286 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
RCP<IndexManager_kokkos> MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::geoDataKokkos_
private

geoData stores an index manager object that is used to perform structured aggreation on a problem.

Definition at line 291 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
RCP<IndexManager> MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::geoData_
private

geoData stores an index manager object that is used to perform structured aggreation on a problem.

Definition at line 296 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
colors_view_type MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::graphColors_
private

graphColors_ stores a view that assigns a color to each node in the graph These colors are used to parallelize the aggregation process in UncoupledAggregation

Definition at line 301 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
LO MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::graphNumColors_
private

graphNumColors_ stores the number of colors that are needed to perform a distance 2 coloring of the underlying graph.

Definition at line 306 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
Teuchos::ArrayRCP<bool> MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::isRoot_
private

An ArrayRCP of booleans specifying if a local entry is an aggregate root.

Definition at line 309 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
bool MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::aggregatesIncludeGhosts_
private

Set to false iff aggregates do not include any DOFs belong to other processes.

Definition at line 312 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
aggregates_sizes_type MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::aggregateSizes_
mutableprivate

Array of sizes of each local aggregate.

Definition at line 315 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
aggregates_sizes_type::HostMirror MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::aggregateSizesHost_
mutableprivate

aggragateSizesHost_ is a host copy of aggregate sizes, which helps slightly reduce the cost of calling ComputeAggregateSizes from different parts of MueLu that require such data on the host device.

Definition at line 322 of file MueLu_Aggregates_decl.hpp.

template<class LocalOrdinal, class GlobalOrdinal, class Node>
local_graph_type MueLu::Aggregates< LocalOrdinal, GlobalOrdinal, Node >::graph_
mutableprivate

Aggregates represented as Kokkos graph type.

Definition at line 325 of file MueLu_Aggregates_decl.hpp.


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