Playa::MPIContainerComm< T > Class Template Reference

Object representation of an MPI communicator for templated containers. More...

List of all members.

Static Public Member Functions
static void	bcast (T &x, int src, const MPIComm &comm)
	Broadcast a single object.
static void	bcast (Array< T > &x, int src, const MPIComm &comm)
	Broadcast an array of objects.
static void	bcast (Array< Array< T > > &x, int src, const MPIComm &comm)
	Broadcast an array of arrays.
static void	allGather (const T &outgoing, Array< T > &incoming, const MPIComm &comm)
	Gather to all processors.
static void	allToAll (const Array< T > &outgoing, Array< Array< T > > &incoming, const MPIComm &comm)
	All-to-all scatter/gather for an array of objects.
static void	allToAll (const Array< Array< T > > &outgoing, Array< Array< T > > &incoming, const MPIComm &comm)
	All-to-all scatter/gather for an array of arrays.
static void	gatherv (const Array< T > &outgoing, Array< Array< T > > &incoming, int rootRank, const MPIComm &comm)
static void	accumulate (const T &localValue, Array< T > &sums, T &total, const MPIComm &comm)
	Sum local values from all processors with rank < myRank.
Static Private Member Functions
static void	getBigArray (const Array< Array< T > > &x, Array< T > &bigArray, Array< int > &offsets)
	Build a 1D array and an offset list from a 2D array.
static void	getSmallArrays (const Array< T > &bigArray, const Array< int > &offsets, Array< Array< T > > &x)
	Reassemble a 2D array from a 1D array and an offset table.

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Detailed Description

template<class T>
class Playa::MPIContainerComm< T >

Object representation of an MPI communicator for templated containers.

Note:

Template specialization exists for std::string.

Author:

Kevin Long

Definition at line 24 of file PlayaMPIContainerComm.hpp.

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Member Function Documentation

template<class T >

void Playa::MPIContainerComm< T >::accumulate	(	const T &	localValue,
		Array< T > &	sums,
		T &	total,
		const MPIComm &	comm
	)			[inline, static]

Sum local values from all processors with rank < myRank.

Definition at line 355 of file PlayaMPIContainerComm.hpp.

References Playa::MPIContainerComm< T >::allGather(), and Playa::MPIComm::getNProc().

template<class T >

void Playa::MPIContainerComm< T >::allGather	(	const T &	outgoing,
		Array< T > &	incoming,
		const MPIComm &	comm
	)			[inline, static]

Gather to all processors.

Definition at line 337 of file PlayaMPIContainerComm.hpp.

References Playa::MPIComm::allGather(), and Playa::MPIComm::getNProc().

Referenced by Playa::MPIContainerComm< T >::accumulate().

template<class T >

void Playa::MPIContainerComm< T >::allToAll	(	const Array< Array< T > > &	outgoing,
		Array< Array< T > > &	incoming,
		const MPIComm &	comm
	)			[inline, static]

All-to-all scatter/gather for an array of arrays.

Definition at line 244 of file PlayaMPIContainerComm.hpp.

References Playa::MPIComm::allToAll(), Playa::MPIComm::allToAllv(), Playa::MPIComm::getNProc(), and Playa::MPIDataType::intType().

template<class T >

void Playa::MPIContainerComm< T >::allToAll	(	const Array< T > &	outgoing,
		Array< Array< T > > &	incoming,
		const MPIComm &	comm
	)			[inline, static]

All-to-all scatter/gather for an array of objects.

Definition at line 189 of file PlayaMPIContainerComm.hpp.

References Playa::MPIComm::allToAll(), and Playa::MPIComm::getNProc().

template<class T >

void Playa::MPIContainerComm< T >::bcast	(	Array< Array< T > > &	x,
		int	src,
		const MPIComm &	comm
	)			[inline, static]

Broadcast an array of arrays.

Definition at line 167 of file PlayaMPIContainerComm.hpp.

References Playa::MPIContainerComm< T >::bcast(), Playa::MPIContainerComm< T >::getBigArray(), Playa::MPIComm::getRank(), and Playa::MPIContainerComm< T >::getSmallArrays().

template<class T >

void Playa::MPIContainerComm< T >::bcast	(	Array< T > &	x,
		int	src,
		const MPIComm &	comm
	)			[inline, static]

Broadcast an array of objects.

Definition at line 146 of file PlayaMPIContainerComm.hpp.

References Playa::MPIComm::bcast(), Playa::MPIContainerComm< T >::bcast(), and Playa::MPIComm::getRank().

template<class T >

void Playa::MPIContainerComm< T >::bcast	(	T &	x,
		int	src,
		const MPIComm &	comm
	)			[inline, static]

Broadcast a single object.

Definition at line 136 of file PlayaMPIContainerComm.hpp.

References Playa::MPIComm::bcast().

Referenced by Playa::MPIContainerComm< std::string >::bcast(), and Playa::MPIContainerComm< T >::bcast().

template<class T >

static void Playa::MPIContainerComm< T >::gatherv	(	const Array< T > &	outgoing,
		Array< Array< T > > &	incoming,
		int	rootRank,
		const MPIComm &	comm
	)			[static]

Gatherv: gather arrays of data to the root processor

template<class T >

void Playa::MPIContainerComm< T >::getBigArray	(	const Array< Array< T > > &	x,
		Array< T > &	bigArray,
		Array< int > &	offsets
	)			[inline, static, private]

Build a 1D array and an offset list from a 2D array.

Definition at line 376 of file PlayaMPIContainerComm.hpp.

Referenced by Playa::MPIContainerComm< std::string >::bcast(), and Playa::MPIContainerComm< T >::bcast().

template<class T >

void Playa::MPIContainerComm< T >::getSmallArrays	(	const Array< T > &	bigArray,
		const Array< int > &	offsets,
		Array< Array< T > > &	x
	)			[inline, static, private]

Reassemble a 2D array from a 1D array and an offset table.

Definition at line 401 of file PlayaMPIContainerComm.hpp.

Referenced by Playa::MPIContainerComm< T >::bcast().