Tpetra::Import< OrdinalType > Class Template Reference

Tpetra::Import: This class builds an import object for efficient importing of off-processor elements. More...

#include <Tpetra_Import.hpp>

Inheritance diagram for Tpetra::Import< OrdinalType >:

[legend]Collaboration diagram for Tpetra::Import< OrdinalType >:

[legend]List of all members.

Public Member Functions
	Import (ElementSpace< OrdinalType > const &source, ElementSpace< OrdinalType > const &target)
	Constructs a Import object from the source and target ElementSpaces.
	Import (Import< OrdinalType > const &import)
	copy constructor.
	~Import ()
	destructor.
OrdinalType	getNumSameIDs () const
	Returns the number of elements that are identical between the source and target spaces, up to the first different ID.
OrdinalType	getNumPermuteIDs () const
	Returns the number of elements that are local to the calling image, but not part of the first getNumSameIDs() elements.
std::vector< OrdinalType > const &	getPermuteFromLIDs () const
	List of elements in the source space that are permuted.
std::vector< OrdinalType > const &	getPermuteToLIDs () const
	List of elements in the target space that are permuted.
OrdinalType	getNumRemoteIDs () const
	Returns the number of elements that are not on the calling image.
std::vector< OrdinalType > const &	getRemoteLIDs () const
	List of elements in the target space that are coming from other images.
OrdinalType	getNumExportIDs () const
	Returns the number of elements that must be sent by the calling image to other images.
std::vector< OrdinalType > const &	getExportLIDs () const
	List of elements in the source space that will be sent to other images.
std::vector< OrdinalType > const &	getExportImageIDs () const
	List of images to which elements will be sent, getExportLIDs() [i] will be sent to image getExportImageIDs() [i].
ElementSpace< OrdinalType > const &	getSourceSpace () const
	Returns the Source ElementSpace used to construct this importer.
ElementSpace< OrdinalType > const &	getTargetSpace () const
	Returns the Target ElementSpace used to construct this importer.
Distributor< OrdinalType > const &	getDistributor () const
Import< OrdinalType > &	operator= (Import< OrdinalType > const &Source)
	Assignment operator.
virtual void	print (ostream &os) const
	print method inherited from Object

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Detailed Description

template<typename OrdinalType>
class Tpetra::Import< OrdinalType >

Tpetra::Import: This class builds an import object for efficient importing of off-processor elements.

Import is used to construct a communication plan that can be called repeatedly by computational classes such the Tpetra CisMatrix and Vector classes to efficiently import elements from other images. An importer is used when we start out with a uniquely-owned distribution, and want to distribute that into a multiple-ownership distribution.

This class currently has one constructor, taking two ElementSpace objects. The first ElementSpace specifies the distribution we have now. The second ElementSpace specifies the distribution we want to have after importing.

NOTE: Behavior is undefined if the source ElementSpace is not uniquely-owned.

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

• Tpetra_Import.hpp

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