diy::mpi::communicator Class Reference

Simple wrapper around MPI_Comm. More...

#include <diy/mpi/communicator.hpp>

Public Member Functions
	communicator (MPI_Comm comm=MPI_COMM_WORLD, bool owner=false)
	communicator (const communicator &other)
	communicator (communicator &&other)
communicator &	operator= (const communicator &other)
communicator &	operator= (communicator &&other)
int	rank () const
int	size () const
template<class T >
void	send (int dest, int tag, const T &x) const
	Send x to processor dest using tag (blocking).
template<class T >
status	recv (int source, int tag, T &x) const
	Receive x from dest using tag (blocking). If T is an std::vector<...>, recv will resize it to fit exactly the sent number of values.
template<class T >
request	isend (int dest, int tag, const T &x) const
	Non-blocking version of send().
template<class T >
request	irecv (int source, int tag, T &x) const
	Non-blocking version of recv(). If T is an std::vector<...>, its size must be big enough to accommodate the sent values.
status	probe (int source, int tag) const
	probe
optional< status >	iprobe (int source, int tag) const
	iprobe
void	barrier () const
	barrier
	operator MPI_Comm () const
communicator	split (int color, int key=0) const
	split When keys are the same, the ties are broken by the rank in the original comm.

Detailed Description

Simple wrapper around MPI_Comm.

Examples:

decomposition/regular-decomposer-long.cpp, decomposition/regular-decomposer-short.cpp, decomposition/test-direct-master.cpp, io/test-io.cpp, reduce/all-done.cpp, reduce/all-to-all.cpp, reduce/kd-tree.cpp, reduce/merge-reduce.cpp, reduce/sample-sort.cpp, reduce/sort.cpp, reduce/swap-reduce.cpp, simple/read-blocks.cpp, simple/simple.cpp, and simple/until-done.cpp.

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

• include/diy/mpi/communicator.hpp