Data handle for collecting set of neighboring MPI ranks. More...

Public Member Functions
size_t	size (const EntityType &e) const
	how many objects of type DataType have to be sent for a given entity More...

void	gather (MessageBufferImp &buff, const EntityType &e) const
	pack data from user to message buffer More...

void	scatter (MessageBufferImp &buff, const EntityType &e, size_t n)
	unpack data from message buffer to user. More...

Detailed Description

template<typename GFS, typename RankIndex>
class Dune::PDELab::GFSNeighborDataHandle< GFS, RankIndex >

Data handle for collecting set of neighboring MPI ranks.

This data handle collects the MPI ranks of all processes that share grid entities with attached DOFs.

Note: In order to work correctly, the data handle must be communicated on the Dune::All_All_Interface.

Member Function Documentation

void Dune::CommDataHandleIF< GFSNeighborDataHandle< GFS, RankIndex > , RankIndex >::gather	(	MessageBufferImp &	buff,
		const EntityType &	e
	)		const

inlineinherited

pack data from user to message buffer

Parameters

buff	message buffer provided by the grid
e	entity for which date should be packed to buffer

void Dune::CommDataHandleIF< GFSNeighborDataHandle< GFS, RankIndex > , RankIndex >::scatter	(	MessageBufferImp &	buff,
		const EntityType &	e,
		size_t	n
	)

inlineinherited

unpack data from message buffer to user.

Parameters

buff	message buffer provided by the grid. This is not const, because the buffer has an internal iterator that gets advanced when reading from the buffer.
e	entity for which date should be unpacked from buffer
n	number of data written to buffer for this entity before

size_t Dune::CommDataHandleIF< GFSNeighborDataHandle< GFS, RankIndex > , RankIndex >::size ( const EntityType & e ) const

inlineinherited

how many objects of type DataType have to be sent for a given entity

Parameters

e	entity for which the size should be determined

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