num::mpi Namespace Reference

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

Function Documentation

allreduce_sum()

void num::mpi::allreduce_sum	(	real *	data,
		idx	n,
		MPI_Comm	comm = MPI_COMM_WORLD
	)

Allreduce sum.

Definition at line 37 of file mpi_ops.cpp.

broadcast()

void num::mpi::broadcast	(	real *	data,
		idx	n,
		int	root = 0,
		MPI_Comm	comm = MPI_COMM_WORLD
	)

Broadcast from root.

Definition at line 46 of file mpi_ops.cpp.

dot()

real num::mpi::dot	(	const Vector &	x,
		const Vector &	y,
		MPI_Comm	comm = MPI_COMM_WORLD
	)

Distributed dot product (each rank holds partial vector)

Definition at line 25 of file mpi_ops.cpp.

References num::dot().

finalize()

void num::mpi::finalize

(

)

Finalize MPI.

Definition at line 9 of file mpi_ops.cpp.

init()

void num::mpi::init	(	int *	argc,
		char ***	argv
	)

Initialize MPI (call once)

Definition at line 6 of file mpi_ops.cpp.

norm()

real num::mpi::norm	(	const Vector &	x,
		MPI_Comm	comm = MPI_COMM_WORLD
	)

Distributed norm.

Definition at line 31 of file mpi_ops.cpp.

References num::dot().

rank()

int num::mpi::rank

(

MPI_Comm

comm = MPI_COMM_WORLD

)

Get communicator rank.

Definition at line 13 of file mpi_ops.cpp.

size()

int num::mpi::size

(

MPI_Comm

comm = MPI_COMM_WORLD

)

Get communicator size.

Definition at line 19 of file mpi_ops.cpp.