Point-2-Point communicator for exchange messages between processes. More...

#include <p2pcommunicator.hh>

Inheritance diagram for Dune::Point2PointCommunicator< MsgBuffer >:

Classes
class	DataHandleInterface

Public Types
typedef MPIHelper::MPICommunicator	MPICommunicator
	type of MPI communicator, either MPI_Comm or NoComm as defined in MPIHelper

typedef MsgBuffer	MessageBufferType
	type of message buffer used

Public Member Functions
	Point2PointCommunicator (const MPICommunicator &mpiComm=MPIHelper::getCommunicator())
	constructor taking mpi communicator

	Point2PointCommunicator (const BaseType &comm)
	constructor taking collective communication

void	insertRequest (const std::set< int > &sendLinks, const std::set< int > &recvLinks)
	insert communication request with a set os ranks to send to and a set of ranks to receive from

int	sendLinks () const
	return number of processes we will send data to

int	recvLinks () const
	return number of processes we will receive data from

const vector_t &	recvBufferSizes () const
	return vector containing possible recv buffer sizes

int	sendLink (const int rank) const
	return send link number for a given send rank number

int	recvLink (const int rank) const
	return recv link number for a given recv rank number

const std::vector< int > &	sendDest () const
	return vector containing all process numbers we will send to

const std::vector< int > &	recvSource () const
	return vector containing all process numbers we will receive from

void	removeLinkage ()
	remove stored linkage

virtual std::vector< MessageBufferType >	exchange (const std::vector< MessageBufferType > &) const
	exchange message buffers with peers defined by inserted linkage

virtual void	exchange (DataHandleInterface &) const
	exchange data with peers, handle defines pack and unpack of data

virtual void	exchangeCached (DataHandleInterface &) const
	exchange data with peers, handle defines pack and unpack of data, if receive buffers are known from previous run and have not changed communication could be faster

Protected Types
using	BaseType = Dune::Communication< MPICommunicator >

typedef Point2PointCommunicator< MessageBufferType >	ThisType

typedef std::map< int, int >	linkage_t

typedef std::vector< int >	vector_t

Protected Member Functions
void	computeDestinations (const linkage_t &linkage, vector_t &dest)

int	getMessageTag (const unsigned int increment) const

int	getMessageTag () const

Protected Attributes
linkage_t	sendLinkage_

linkage_t	recvLinkage_

vector_t	sendDest_

vector_t	recvSource_

vector_t	_recvBufferSizes

bool	_recvBufferSizesComputed

Static Protected Attributes
static const int	messagetag = 234

Detailed Description

template<class MsgBuffer>
class Dune::Point2PointCommunicator< MsgBuffer >

Point-2-Point communicator for exchange messages between processes.

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

opm/grid/common/p2pcommunicator.hh
opm/grid/common/p2pcommunicator_impl.hh

Classes

Public Types

Public Member Functions

Protected Types

Protected Member Functions

Protected Attributes

Static Protected Attributes

Detailed Description