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openmpi/src/util/sys_info.h

97 строки
3.0 KiB
C
Исходник Обычный вид История

/*
* Copyright (c) 2004-2005 The Trustees of Indiana University.
* All rights reserved.
* Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
* All rights reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
/** @file:
*
* Populates global structure with system-specific information.
*
* Notes: add limits.h, compute size of integer and other types via sizeof(type)*CHAR_BIT
*
*/
#include "ompi_config.h"
#ifdef HAVE_SYS_UTSNAME_H
#include <sys/utsname.h>
#endif
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifndef _OMPI_SYS_INFO_H_
#define _OMPI_SYS_INFO_H_
#if defined(c_plusplus) || defined(__cplusplus)
extern "C" {
#endif
/**
* System information structure
*
* The ompi_sys_info() function fills the sysname, nodename, release, version, machine,
* path_sep, and user fields
*
*/
struct ompi_sys_info_t {
bool init; /**< Certifies that values have been filled.
* Certifies that the ompi_sys_info() function has been
* called at least once so fields have valid values
*/
char *sysname; /**< Name of OS in use on this node. */
char *nodename; /**< Fully qualified host name on the network. */
char *release; /**< Release level of the operating system. */
char *version; /**< Version of the operating system release. */
char *machine; /**< Type of hardware composing this node. */
char *path_sep; /**< Path separation char, saved as string.
* The character used to separate directories in the path -
* a value that is usually either a '\' or '/', depending
* upon the operating system
*/
char *user; /**< User id on this system. */
char *enviro; /**< Computing environment employed on this system.
* Indicates the local computing environment for managing
* and scheduling resources - e.g., SLURM, PBS, LSF, or BProc
*/
char *suffix; /**< Automatic suffix added to file names.
* Some computing environments automatically "tag" files
* created by applications with a computer-generated suffix
* to ensure uniqueness of the file name. This field records
* that value for future use.
*/
};
typedef struct ompi_sys_info_t ompi_sys_info_t;
OMPI_DECLSPEC extern ompi_sys_info_t ompi_system_info;
/**
* \internal
*
* Discover and record a wide range of information about the system
* upon which this code is executing. ompi_sys_info populates a global
* variable with information about the system upon which the process
* is executing.
*
* Called from \c ompi_init.
*
* @retval OMPI_SUCCESS If values are successfully determined.
* @retval OMPI_ERROR If the system does not provide the requested information.
*/
OMPI_DECLSPEC int ompi_sys_info(void);
#if defined(c_plusplus) || defined(__cplusplus)
}
#endif
#endif