#include <CollectiveCommunicationSingleNonBlocking.h>

Inheritance diagram for CollectiveCommunicationSingleNonBlocking:

Public Member Functions
	CollectiveCommunicationSingleNonBlocking ()=default

	CollectiveCommunicationSingleNonBlocking (const CollectiveCommunicationSingleNonBlocking &)=delete

CollectiveCommunicationSingleNonBlocking &	operator= (const CollectiveCommunicationSingleNonBlocking &)=delete

	~CollectiveCommunicationSingleNonBlocking () override

void	allreduceSumAllowPrevious () override

void	init (MPI_Comm communicator, int numValues, int key=0) override
	allocate memory for the values to be sent, initialize counters More...

void	finalize () override
	delete memory and MPI_Type More...

Public Member Functions inherited from CollectiveCommunication
void	appendInt (int intValue) override

void	appendUnsLong (unsigned long unsLongValue) override

void	appendFloat (float floatValue) override

void	appendDouble (double doubleValue) override

void	appendLongDouble (long double longDoubleValue) override

MPI_Comm	getTopology () override

void	broadcast (int root=0) override

void	allreduceSum () override
	Performs an all-reduce (sum) More...

void	allreduceCustom (ReduceType type) override

void	scanSum () override
	Performs a scan (sum) More...

virtual size_t	getTotalSize () override

Public Member Functions inherited from CollectiveCommBase
void	init (int numValues)
	allocate memory for the values to be stored, initialize getter-iterator More...

virtual int	getInt () override

virtual unsigned long	getUnsLong () override

virtual float	getFloat () override

virtual double	getDouble () override

virtual long double	getLongDouble () override

Public Member Functions inherited from CollectiveCommBaseInterface
virtual	~CollectiveCommBaseInterface ()
	virtual destructor

Public Member Functions inherited from CollectiveCommunicationInterface
	~CollectiveCommunicationInterface () override=default
	virtual destructor

Additional Inherited Members
Protected Member Functions inherited from CollectiveCommunication
void	setMPIType ()
	defines a MPI datatype which can be used to transfer a CollectiveCommunication object More...

Static Protected Member Functions inherited from CollectiveCommunication
static void	add (valType invec, valType inoutvec, int , MPI_Datatype dtype)
	method used by MPI to add variables of this type More...

static void	max (valType invec, valType inoutvec, int , MPI_Datatype dtype)

static void	min (valType invec, valType inoutvec, int , MPI_Datatype dtype)

Protected Attributes inherited from CollectiveCommunication
std::vector< MPI_Datatype >	_types
	Vector of the corresponding MPI types for the values stored in _values.

MPI_Datatype	_agglomeratedType

MPI_Comm	_communicator
	Communicator to be used by the communication commands.

Protected Attributes inherited from CollectiveCommBase
std::vector< valType >	_values
	Vector to store the values which shall be communicated.

std::vector< valType >::const_iterator	_getter
	Iterator to extract the values which were communicated.

Detailed Description

CollectiveCommunicationSingleNonBlocking extends the CollectiveCommunication by an implementation of nonblocking collectives.

Author: Steffen Seckler

Constructor & Destructor Documentation

◆ CollectiveCommunicationSingleNonBlocking() [1/2]

CollectiveCommunicationSingleNonBlocking::CollectiveCommunicationSingleNonBlocking ( )

default

Constructor

◆ CollectiveCommunicationSingleNonBlocking() [2/2]

CollectiveCommunicationSingleNonBlocking::CollectiveCommunicationSingleNonBlocking ( const CollectiveCommunicationSingleNonBlocking & )

delete

Copy constructor is deleted, as copying the vector _tempValues will change memory addresses used in the mpi communication!

◆ ~CollectiveCommunicationSingleNonBlocking()

CollectiveCommunicationSingleNonBlocking::~CollectiveCommunicationSingleNonBlocking ( )

inlineoverride

Destructor

Member Function Documentation

◆ allreduceSumAllowPrevious()

void CollectiveCommunicationSingleNonBlocking::allreduceSumAllowPrevious ( )

inlineoverridevirtual

Performs an all-reduce (sum), however values of previous iterations are permitted. By allowing values from previous iterations, overlapping communication is possible. One possible use case for this function is the reduction of slowly changing variables, e.g. the temperature.

Reimplemented from CollectiveCommunication.

◆ finalize()

void CollectiveCommunicationSingleNonBlocking::finalize ( )

inlineoverridevirtual

delete memory and MPI_Type

Returns: the value

Reimplemented from CollectiveCommunication.

◆ init()

void CollectiveCommunicationSingleNonBlocking::init	(	MPI_Comm	communicator,
		int	numValues,
		int	key = `0`
	)

inlineoverridevirtual

allocate memory for the values to be sent, initialize counters

Parameters

numValues number of values that shall be communicated

Reimplemented from CollectiveCommunication.

◆ operator=()

CollectiveCommunicationSingleNonBlocking& CollectiveCommunicationSingleNonBlocking::operator= ( const CollectiveCommunicationSingleNonBlocking & )

delete

Copy assignment operator is deleted, as copying the vector _tempValues will change memory addresses used in the mpi communication!

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

src/parallel/CollectiveCommunicationSingleNonBlocking.h

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ CollectiveCommunicationSingleNonBlocking() [1/2]

◆ CollectiveCommunicationSingleNonBlocking() [2/2]

◆ ~CollectiveCommunicationSingleNonBlocking()

Member Function Documentation

◆ allreduceSumAllowPrevious()

◆ finalize()

◆ init()

◆ operator=()