MPICommSplit.cpp File Reference

#include <sys/stat.h>
#include <unistd.h>
#include <sstream>
#include "geopm_mpi_comm_split.h"
#include "geopm/SharedMemory.hpp"
#include "geopm/Environment.hpp"
#include "geopm/Exception.hpp"
#include "Controller.hpp"
#include "Comm.hpp"
#include "MPIComm.hpp"
#include "ApplicationSampler.hpp"

Include dependency graph for MPICommSplit.cpp:

Functions
int	geopm_ctl_create (MPI_Comm comm, struct geopm_ctl_c **ctl)
	creates a geopm_ctl_c object, ctl which is an opaque structure that holds the state used to execute the control algorithm with one of the other functions described in this header file. More...
int	geopm_ctl_create_f (int comm, struct geopm_ctl_c **ctl)
int	geopm_comm_split_ppn1 (MPI_Comm comm, const char *tag, MPI_Comm *ppn1_comm)
int	geopm_comm_split_shared (MPI_Comm comm, const char *tag, MPI_Comm *split_comm)
int	geopm_comm_split (MPI_Comm comm, const char *tag, MPI_Comm *split_comm, int *is_ctl_comm)

Function Documentation

geopm_comm_split()

int geopm_comm_split	(	MPI_Comm	comm,
		const char *	tag,
		MPI_Comm *	split_comm,
		int *	is_ctl_comm
	)

geopm_comm_split_ppn1()

int geopm_comm_split_ppn1	(	MPI_Comm	comm,
		const char *	tag,
		MPI_Comm *	ppn1_comm
	)

geopm_comm_split_shared()

int geopm_comm_split_shared	(	MPI_Comm	comm,
		const char *	tag,
		MPI_Comm *	split_comm
	)

geopm_ctl_create()

int geopm_ctl_create	(	MPI_Comm	comm,
		struct geopm_ctl_c **	ctl
	)

creates a geopm_ctl_c object, ctl which is an opaque structure that holds the state used to execute the control algorithm with one of the other functions described in this header file.

The control algorithm relies on feedback about the application profile.

Parameters

comm	The user provides an MPI communicator, which must have at least one process running on every compute node under control.
ctl	The out parameter pointer to the created geopm_ctl_c object

geopm_ctl_create_f()

int geopm_ctl_create_f	(	int	comm,
		struct geopm_ctl_c **	ctl
	)