mpi_ops.hpp File Reference

MPI distributed operations. More...

#include "core/vector.hpp"
#include "core/matrix.hpp"

Go to the source code of this file.

Namespaces
namespace	num
namespace	num::mpi

Typedefs
using	MPI_Comm = int

Functions
void	num::mpi::init (int *argc, char ***argv)
	Initialize MPI (call once)
void	num::mpi::finalize ()
	Finalize MPI.
int	num::mpi::rank (MPI_Comm comm=MPI_COMM_WORLD)
	Get communicator rank.
int	num::mpi::size (MPI_Comm comm=MPI_COMM_WORLD)
	Get communicator size.
real	num::mpi::dot (const Vector &x, const Vector &y, MPI_Comm comm=MPI_COMM_WORLD)
	Distributed dot product (each rank holds partial vector)
real	num::mpi::norm (const Vector &x, MPI_Comm comm=MPI_COMM_WORLD)
	Distributed norm.
void	num::mpi::allreduce_sum (real *data, idx n, MPI_Comm comm=MPI_COMM_WORLD)
	Allreduce sum.
void	num::mpi::broadcast (real *data, idx n, int root=0, MPI_Comm comm=MPI_COMM_WORLD)
	Broadcast from root.

Variables
constexpr MPI_Comm	MPI_COMM_WORLD = 0

Detailed Description

MPI distributed operations.

Definition in file mpi_ops.hpp.

Typedef Documentation

MPI_Comm

using MPI_Comm = int

Definition at line 11 of file mpi_ops.hpp.

Variable Documentation

MPI_COMM_WORLD

constexpr MPI_Comm MPI_COMM_WORLD = 0

constexpr

Definition at line 12 of file mpi_ops.hpp.