alps::alea::mpi_reducer Struct Reference

#include <mpi.hpp>

Inheritance diagram for alps::alea::mpi_reducer:

Collaboration diagram for alps::alea::mpi_reducer:

Public Member Functions
	mpi_reducer (const mpi::communicator &comm=mpi::communicator(), int root=0)
reducer_setup	get_setup () const override
long	get_max (long data) const override
void	reduce (view< double > data) const override
void	reduce (view< long > data) const override
void	commit () const override
const mpi::communicator &	comm () const
int	root () const
bool	am_root () const
Public Member Functions inherited from alps::alea::reducer
virtual reducer *	clone ()
virtual	~reducer ()
void	reduce (view< std::complex< double > > data) const
void	reduce (view< complex_op< double > > data) const
void	reduce (view< unsigned long > data) const

Protected Member Functions
template<typename T >
void	inplace_reduce (view< T > data) const

Detailed Description

In-place sum-reduction via an MPI communicator.

Definition at line 38 of file mpi.hpp.

Constructor & Destructor Documentation

alps::alea::mpi_reducer::mpi_reducer ( const mpi::communicator &  comm = mpi::communicator(), int  root = 0  )

inline

Definition at line 42 of file mpi.hpp.

Member Function Documentation

bool alps::alea::mpi_reducer::am_root ( ) const

inline

Definition at line 75 of file mpi.hpp.

const mpi::communicator& alps::alea::mpi_reducer::comm ( ) const

inline

Definition at line 71 of file mpi.hpp.

void alps::alea::mpi_reducer::commit ( ) const

inlineoverridevirtual

Finish reduction of all data if deferred

Implements alps::alea::reducer.

Definition at line 69 of file mpi.hpp.

long alps::alea::mpi_reducer::get_max ( long  value ) const

inlineoverridevirtual

Get maximum of scalar value over all instances (immediate)

Implements alps::alea::reducer.

Definition at line 58 of file mpi.hpp.

reducer_setup alps::alea::mpi_reducer::get_setup ( ) const

inlineoverridevirtual

Set-up reduction operation

Implements alps::alea::reducer.

Definition at line 50 of file mpi.hpp.

template<typename T >

void alps::alea::mpi_reducer::inplace_reduce ( view< T >  data ) const

inlineprotected

Definition at line 79 of file mpi.hpp.

void alps::alea::mpi_reducer::reduce ( view< double >  data ) const

inlineoverridevirtual

Reduce double data-set into data

Implements alps::alea::reducer.

Definition at line 65 of file mpi.hpp.

void alps::alea::mpi_reducer::reduce ( view< long >  data ) const

inlineoverridevirtual

Reduce long data-set into data

Implements alps::alea::reducer.

Definition at line 67 of file mpi.hpp.

int alps::alea::mpi_reducer::root ( ) const

inline

Definition at line 73 of file mpi.hpp.

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

• alps/alea/mpi.hpp