Communicator, group and window management. More...

Data Structures
struct	EpkWorld
struct	EpkComm
struct	EpkGroup
Functions
void	epk_comm_init ()
	Initialize communicator management.
void	epk_comm_finalize ()
	Cleanup communicator management.
void	epk_group_to_bitvector (MPI_Group group)
	Create a bitvector resembling the ranks in an MPI group.
void	epk_group_create (MPI_Group group)
	Create an internal handle for an MPI group.
void	epk_group_free (MPI_Group group)
	clear internal handle for an MPI group
elg_ui4	epk_group_id (MPI_Group group)
	get internal ID for an MPI group
int	epk_group_search (MPI_Group group)
	get index of an MPI group in the internal datastructures

Detailed Description

Function Documentation

void epk_group_create ( MPI_Group group )

Creates an internal datastructure to enable tracking of this MPI group handle.

Parameters:

group MPI group handle

void epk_group_to_bitvector ( MPI_Group group )

Creates a bitvector where nth bit is set, if rank n is part of the group. The bitvector is stored in a static internal variable.

Parameters:

group MPI group handle