node.h File Reference

This file contains interface to configure the intra-node execution environment. More...

#include <starneig/configuration.h>
#include <stddef.h>
#include <mpi.h>

Go to the source code of this file.

Functions
void	starneig_node_init (int cores, int gpus, starneig_flag_t flags)
	Initializes the intra-node execution environment. More...
int	starneig_node_initialized ()
	Checks whether the intra-node execution environment is initialized. More...
int	starneig_node_get_cores ()
	Returns the number of cores (threads) per MPI rank. More...
void	starneig_node_set_cores (int cores)
	Changes the number of CPUs cores (threads) to use per MPI rank. More...
int	starneig_node_get_gpus ()
	Returns the number of GPUs per MPI rank. More...
void	starneig_node_set_gpus (int gpus)
	Changes the number of GPUs to use per MPI rank. More...
void	starneig_node_finalize ()
	Deallocates resources associated with the intra-node configuration.
void	starneig_mpi_set_comm (MPI_Comm comm)
MPI_Comm	starneig_mpi_get_comm ()
Pinned host memory
void	starneig_node_enable_pinning ()
	Enable CUDA host memory pinning. More...
void	starneig_node_disable_pinning ()
	Disables CUDA host memory pinning. More...

Library initialization flags
#define	STARNEIG_USE_ALL   -1
	Use all resources. More...
#define	STARNEIG_DEFAULT   0x0
	Default mode. More...
#define	STARNEIG_HINT_SM   0x0
	Shared memory mode. More...
#define	STARNEIG_HINT_DM   0x1
	Distributed memory mode. More...
#define	STARNEIG_FXT_DISABLE   0x2
	No FxT traces mode. More...
#define	STARNEIG_AWAKE_WORKERS   0x4
	Awake worker mode. More...
#define	STARNEIG_AWAKE_MPI_WORKER   0x8
	Awake MPI worker mode. More...
#define	STARNEIG_FAST_DM   (STARNEIG_HINT_DM | STARNEIG_AWAKE_WORKERS | STARNEIG_AWAKE_MPI_WORKER)
	Fast distributed memory mode. More...
#define	STARNEIG_NO_VERBOSE   0x10
	No verbose mode. More...
#define	STARNEIG_NO_MESSAGES   (STARNEIG_NO_VERBOSE | 0x20)
	No messages mode. More...
typedef unsigned	starneig_flag_t
	Library initialization flag data type.

Detailed Description

This file contains interface to configure the intra-node execution environment.

Author

Mirko Myllykoski (mirko.nosp@m.m@cs.nosp@m..umu..nosp@m.se), Umeå University

Lars Karlsson (larsk.nosp@m.@cs..nosp@m.umu.s.nosp@m.e), Umeå University