diy::mpi Namespace Reference

Classes
struct	Collectives
class	communicator
	Simple wrapper around MPI_Comm. More...
struct	maximum
struct	minimum
struct	optional
struct	request
struct	status
struct	environment

Functions
template<class T >
void	broadcast (const communicator &comm, T &x, int root)
	Broadcast to all processes in comm.
template<class T >
void	broadcast (const communicator &comm, std::vector< T > &x, int root)
	Broadcast for vectors.
template<class T >
request	ibroadcast (const communicator &comm, T &x, int root)
	iBroadcast to all processes in comm.
template<class T >
void	gather (const communicator &comm, const T &in, std::vector< T > &out, int root)
	Gather from all processes in comm. On root process, out is resized to comm.size() and filled with elements from the respective ranks.
template<class T >
void	gather (const communicator &comm, const std::vector< T > &in, std::vector< std::vector< T > > &out, int root)
	Same as above, but for vectors.
template<class T >
void	gather (const communicator &comm, const T &in, int root)
	Simplified version (without out) for use on non-root processes.
template<class T >
void	gather (const communicator &comm, const std::vector< T > &in, int root)
	Simplified version (without out) for use on non-root processes.
template<class T >
void	all_gather (const communicator &comm, const T &in, std::vector< T > &out)
	all_gather from all processes in comm. out is resized to comm.size() and filled with elements from the respective ranks.
template<class T >
void	all_gather (const communicator &comm, const std::vector< T > &in, std::vector< std::vector< T > > &out)
	Same as above, but for vectors.
template<class T , class Op >
void	reduce (const communicator &comm, const T &in, T &out, int root, const Op &op)
	reduce
template<class T , class Op >
void	reduce (const communicator &comm, const T &in, int root, const Op &op)
	Simplified version (without out) for use on non-root processes.
template<class T , class Op >
void	all_reduce (const communicator &comm, const T &in, T &out, const Op &op)
	all_reduce
template<class T , class Op >
void	all_reduce (const communicator &comm, const std::vector< T > &in, std::vector< T > &out, const Op &op)
	Same as above, but for vectors.
template<class T , class Op >
void	scan (const communicator &comm, const T &in, T &out, const Op &op)
	scan
template<class T >
void	all_to_all (const communicator &comm, const std::vector< T > &in, std::vector< T > &out, int n=1)
	all_to_all

Variables
const int	any_source = MPI_ANY_SOURCE
const int	any_tag = MPI_ANY_TAG

Detailed Description

C++ MPI wrapper