A derived class from Epetra_MultiVector specialized to handle parallel block structured Vectors. More...

#include <BlockEpetra_MultiVector.hpp>

Inheritance diagram for BlockEpetra_MultiVector:

Collaboration diagram for BlockEpetra_MultiVector:

Private Member Functions
void	createBlockViews ()

Private Attributes
UInt	M_nBlocks

BlockEpetra_Map	M_blockMap

std::vector< UInt >	M_myLocalOffsets

vectorPtrContainer_Type	M_blocks

typedef Epetra_MultiVector	vector_Type

typedef boost::shared_ptr< vector_Type >	vectorPtr_Type

typedef std::vector< vectorPtr_Type >	vectorPtrContainer_Type

	BlockEpetra_MultiVector (const BlockEpetra_Map &map, int numVectors, bool zeroOut=true)
	Generate a BlockEpetra_MultiVector from a BlockEpetra_Map. More...

	BlockEpetra_MultiVector (const BlockEpetra_MultiVector &Source)
	Copy Constructor. More...

	BlockEpetra_MultiVector (Epetra_DataAccess CV, const vector_Type &source, const BlockEpetra_Map &map)
	Overlay a block structure to a source. More...

Epetra_MultiVector &	block (UInt iblock)
	Return a Epetra_MultiVector (view) object for block iblock. More...

const Epetra_MultiVector &	block (UInt iblock) const
	const version More...

const BlockEpetra_Map &	blockEpetraMap () const
	retrieve the `BlockEpetra_Map` More...

Detailed Description

A derived class from Epetra_MultiVector specialized to handle parallel block structured Vectors.

BlockEpetra_MultiVector provides monolithic or block access to an Epetra_MultiVector. A BlockEpetra_MultiVector object can be constructed or by striding Epetra_MultiVector or from a BlockEpetra_Map.

This class can be also used to overly a block structure to a given Epetra_MultiVector. In this case, to maximize performances and reduce memory footprint the original object and it's block view will share the same data in memory. If a BlockEpetra_MultiVector object is a view of another Epetra_MultiVector each modification on the data value of one vector will also affect the other vector and viceversa.

Definition at line 39 of file BlockEpetra_MultiVector.hpp.

Member Typedef Documentation

◆ vector_Type

typedef Epetra_MultiVector vector_Type

Definition at line 46 of file BlockEpetra_MultiVector.hpp.

◆ vectorPtr_Type

typedef boost::shared_ptr<vector_Type> vectorPtr_Type

Definition at line 47 of file BlockEpetra_MultiVector.hpp.

◆ vectorPtrContainer_Type

typedef std::vector<vectorPtr_Type> vectorPtrContainer_Type

Definition at line 48 of file BlockEpetra_MultiVector.hpp.

Constructor & Destructor Documentation

◆ BlockEpetra_MultiVector() [1/3]

BlockEpetra_MultiVector	(	const BlockEpetra_Map &	map,
		int	numVectors,
		bool	zeroOut = `true`
	)

Generate a BlockEpetra_MultiVector from a BlockEpetra_Map.

Definition at line 12 of file BlockEpetra_MultiVector.cpp.

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◆ BlockEpetra_MultiVector() [2/3]

BlockEpetra_MultiVector ( const BlockEpetra_MultiVector & Source )

Copy Constructor.

Definition at line 22 of file BlockEpetra_MultiVector.cpp.

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◆ BlockEpetra_MultiVector() [3/3]

BlockEpetra_MultiVector	(	Epetra_DataAccess	CV,
		const vector_Type &	source,
		const BlockEpetra_Map &	map
	)

Overlay a block structure to a source.

If the DataAccess type is Copy, then this object will make a deep copy of all the data structure of source If the DataAccess type is View, then this object will only copy the pointers to the datas in source. (shallow copy).