mpi.hpp File Reference

Helper functions for MPI. More...

#include <mpi.h>

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Namespaces
namespace	mptensor
namespace	mptensor::mpi

Typedefs
using	mptensor::mpi::comm_type = MPI_Comm

Functions
void	mptensor::mpi::initialize (int argc, char **argv)
	True if the calling process is the root (rank 0), false otherwise.
void	mptensor::mpi::finalize ()
	Finalize MPI environment.
void	mptensor::mpi::barrier (const comm_type &comm)
	Barrier synchronization among processes in the communicator.
void	mptensor::mpi::get_info (const comm_type &comm, int &rank, int &size, bool &is_root)
	Get MPI information: rank, size, and whether the process is the root.

Variables
int	mptensor::mpi::rank = -1
	Type for MPI communicator.
int	mptensor::mpi::size = -1
	Rank of the calling process in the communicator.
bool	mptensor::mpi::is_root = false
	Number of processes in the communicator.

Detailed Description

Helper functions for MPI.

Author

Satoshi Morita morit.nosp@m.a@is.nosp@m.sp.u-.nosp@m.toky.nosp@m.o.ac..nosp@m.jp

Date

Mar 24 2020

This header file supports build without the MPI environment.