Epetra_FECrsGraph Class Reference

#include <Epetra_FECrsGraph.h>

Inheritance diagram for Epetra_FECrsGraph:

Collaboration diagram for Epetra_FECrsGraph:

List of all members.

Public Member Functions
	Epetra_FECrsGraph (Epetra_DataAccess CV, const Epetra_BlockMap &RowMap, int *NumIndicesPerRow, bool ignoreNonLocalEntries=false, bool buildNonlocalGraph=false)
	Epetra_FECrsGraph (Epetra_DataAccess CV, const Epetra_BlockMap &RowMap, int NumIndicesPerRow, bool ignoreNonLocalEntries=false, bool buildNonlocalGraph=false)
	Epetra_FECrsGraph (Epetra_DataAccess CV, const Epetra_BlockMap &RowMap, const Epetra_BlockMap &ColMap, int *NumIndicesPerRow, bool ignoreNonLocalEntries=false, bool buildNonlocalGraph=false)
	Epetra_FECrsGraph (Epetra_DataAccess CV, const Epetra_BlockMap &RowMap, const Epetra_BlockMap &ColMap, int NumIndicesPerRow, bool ignoreNonLocalEntries=false, bool buildNonlocalGraph=false)
	Epetra_FECrsGraph (const Epetra_FECrsGraph &Graph)
virtual	~Epetra_FECrsGraph ()
int	InsertGlobalIndices (int numRows, const int *rows, int numCols, const int *cols)
int	GlobalAssemble (bool callFillComplete=true)
int	GlobalAssemble (const Epetra_Map &domain_map, const Epetra_Map &range_map, bool callFillComplete=true)
bool	UseNonlocalGraph () const
Friends
class	Epetra_FECrsMatrix

---

Detailed Description

Epetra Finite-Element CrsGraph. This class provides the ability to insert indices into a matrix-graph, where the indices represent dense submatrices such as element-stiffnesses that might arise from a finite-element application.

In a parallel setting, indices may be submitted on the local processor for rows that do not reside in the local portion of the row-map. After all indices have been submitted, the GlobalAssemble method gathers all non-local graph rows to the appropriate 'owning' processors (an owning processor is a processor which has the row in its row-map).

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Constructor & Destructor Documentation

Epetra_FECrsGraph::Epetra_FECrsGraph	(	Epetra_DataAccess	CV,
		const Epetra_BlockMap &	RowMap,
		int *	NumIndicesPerRow,
		bool	ignoreNonLocalEntries = false,
		bool	buildNonlocalGraph = false
	)

Constructor

Epetra_FECrsGraph::Epetra_FECrsGraph	(	Epetra_DataAccess	CV,
		const Epetra_BlockMap &	RowMap,
		int	NumIndicesPerRow,
		bool	ignoreNonLocalEntries = false,
		bool	buildNonlocalGraph = false
	)

Constructor

Epetra_FECrsGraph::Epetra_FECrsGraph	(	Epetra_DataAccess	CV,
		const Epetra_BlockMap &	RowMap,
		const Epetra_BlockMap &	ColMap,
		int *	NumIndicesPerRow,
		bool	ignoreNonLocalEntries = false,
		bool	buildNonlocalGraph = false
	)

Constructor

Epetra_FECrsGraph::Epetra_FECrsGraph	(	Epetra_DataAccess	CV,
		const Epetra_BlockMap &	RowMap,
		const Epetra_BlockMap &	ColMap,
		int	NumIndicesPerRow,
		bool	ignoreNonLocalEntries = false,
		bool	buildNonlocalGraph = false
	)

Constructor

Epetra_FECrsGraph::Epetra_FECrsGraph

(

const Epetra_FECrsGraph &

Graph

)

Constructor

virtual Epetra_FECrsGraph::~Epetra_FECrsGraph

(

)

[virtual]

Destructor

---

Member Function Documentation

int Epetra_FECrsGraph::GlobalAssemble

(

bool

callFillComplete = true

)

Gather any overlapping/shared data into the non-overlapping partitioning defined by the Map that was passed to this matrix at construction time. Data imported from other processors is stored on the owning processor with a "sumInto" or accumulate operation. This is a collective method -- every processor must enter it before any will complete it.

NOTE***: When GlobalAssemble() calls FillComplete(), it passes the arguments 'DomainMap()' and 'RangeMap()', which are the map attributes held by the base-class CrsMatrix and its graph. If a rectangular matrix is being assembled, the domain-map and range-map must be specified by calling the other overloading of this method. Otherwise, GlobalAssemble() has no way of knowing what these maps should really be.

Parameters:

callFillComplete

option argument, defaults to true. Determines whether GlobalAssemble() internally calls the FillComplete() method on this matrix.

Returns:

error-code 0 if successful, non-zero if some error occurs

int Epetra_FECrsGraph::GlobalAssemble	(	const Epetra_Map &	domain_map,
		const Epetra_Map &	range_map,
		bool	callFillComplete = true
	)

Gather any overlapping/shared data into the non-overlapping partitioning defined by the Map that was passed to this matrix at construction time. Data imported from other processors is stored on the owning processor with a "sumInto" or accumulate operation. This is a collective method -- every processor must enter it before any will complete it.

NOTE***: When GlobalAssemble() (the other overloading of this method) calls FillComplete(), it passes the arguments 'DomainMap()' and 'RangeMap()', which are the map attributes already held by the base-class CrsMatrix and its graph. If a rectangular matrix is being assembled, the domain-map and range-map must be specified. Otherwise, GlobalAssemble() has no way of knowing what these maps should really be.

Parameters:

domain_map	user-supplied domain map for this matrix
range_map	user-supplied range map for this matrix
callFillComplete	option argument, defaults to true. Determines whether GlobalAssemble() internally calls the FillComplete() method on this matrix.

Returns:

error-code 0 if successful, non-zero if some error occurs

int Epetra_FECrsGraph::InsertGlobalIndices	(	int	numRows,
		const int *	rows,
		int	numCols,
		const int *	cols
	)

Insert a rectangular, dense 'submatrix' of entries (matrix nonzero positions) into the graph.

Parameters:

numRows	Number of rows in the submatrix.
rows	List of row-numbers for the submatrix.
numCols	Number of columns in the submatrix.
cols	List of column-indices that will be used for each row in the 'rows' list.

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

• Epetra_FECrsGraph.h