describes the features of a data handle for communication in parallel runs using the GridGlue::communicate methods. More...

#include <dune/grid-glue/adapter/gridgluecommunicate.hh>

Public Types
typedef DataTypeImp	DataType
	data type of data to communicate

Public Member Functions
template<class RISType >
size_t	size (RISType &i) const

template<class MessageBufferImp , class EntityType , class RISType >
void	gather (MessageBufferImp &buff, const EntityType &e, const RISType &i) const
	pack data from user to message buffer More...

template<class MessageBufferImp , class EntityType , class RISType >
void	scatter (MessageBufferImp &buff, const EntityType &e, const RISType &i, size_t n)

Detailed Description

template<class DataHandleImp, class DataTypeImp>
class Dune::GridGlue::CommDataHandle< DataHandleImp, DataTypeImp >

describes the features of a data handle for communication in parallel runs using the GridGlue::communicate methods.

Here the Barton-Nackman trick is used to interpret data handle objects as its interface. Therefore usable data handle classes need to be derived from this class.

Template Parameters

DataHandleImp	implementation of the users data handle
DataTypeImp	type of data that are going to be communicated which is exported as `DataType` (for example double)

Member Function Documentation

◆ gather()

template<class DataHandleImp , class DataTypeImp >

template<class MessageBufferImp , class EntityType , class RISType >

void Dune::GridGlue::CommDataHandle< DataHandleImp, DataTypeImp >::gather	(	MessageBufferImp &	buff,
		const EntityType &	e,
		const RISType &	i
	)		const

inline

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
i	Intersection for which data should be packed to buffer

References Dune::GridGlue::CommDataHandle< DataHandleImp, DataTypeImp >::gather().

Referenced by Dune::GridGlue::GridGlue< P0, P1 >::communicate(), and Dune::GridGlue::CommDataHandle< DataHandleImp, DataTypeImp >::gather().

◆ scatter()

template<class DataHandleImp , class DataTypeImp >

template<class MessageBufferImp , class EntityType , class RISType >

void Dune::GridGlue::CommDataHandle< DataHandleImp, DataTypeImp >::scatter	(	MessageBufferImp &	buff,
		const EntityType &	e,
		const RISType &	i,
		size_t	n
	)

inline

unpack data from message buffer to user n is the number of objects sent by the sender

Parameters

buff	message buffer provided by the grid
e	entity for which date should be unpacked from buffer
i	Intersection for which data is received
n	number of data written to buffer for this entity before

References Dune::GridGlue::CommDataHandle< DataHandleImp, DataTypeImp >::scatter().

Referenced by Dune::GridGlue::GridGlue< P0, P1 >::communicate(), and Dune::GridGlue::CommDataHandle< DataHandleImp, DataTypeImp >::scatter().