smpi_memory.cpp File Reference

#include <cstdint>
#include <climits>
#include <cstring>
#include <vector>
#include <stdlib.h>
#include <sys/types.h>
#include <string.h>
#include <stdio.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <errno.h>
#include <sys/mman.h>
#include <unistd.h>
#include "src/xbt/memory_map.hpp"
#include "src/smpi/private.h"
#include "private.hpp"

Functions
	XBT_LOG_NEW_DEFAULT_SUBCATEGORY (smpi_memory, smpi, "Memory layout support for SMPI")
void	smpi_get_executable_global_size ()
void	smpi_switch_data_segment (int dest)
	Map a given SMPI privatization segment (make a SMPI process active) More...
void	smpi_really_switch_data_segment (int dest)
	Map a given SMPI privatization segment (make a SMPI process active) even if SMPI thinks it is already active. More...
int	smpi_is_privatisation_file (char *file)
void	smpi_initialize_global_memory_segments ()
void	smpi_destroy_global_memory_segments ()

Variables
int	smpi_loaded_page = -1
char *	smpi_start_data_exe = nullptr
int	smpi_size_data_exe = 0
int	smpi_privatize_global_variables
static const int	PROT_RWX = (PROT_READ | PROT_WRITE | PROT_EXEC)
static const int	PROT_RW = (PROT_READ | PROT_WRITE )
static XBT_ATTRIB_UNUSED const int	PROT_RX = (PROT_READ | PROT_EXEC )

Function Documentation

XBT_LOG_NEW_DEFAULT_SUBCATEGORY()

XBT_LOG_NEW_DEFAULT_SUBCATEGORY	(	smpi_memory	,
		smpi	,
		"Memory layout support for SMPI"
	)

smpi_get_executable_global_size()

void smpi_get_executable_global_size

(

)

smpi_switch_data_segment()

void smpi_switch_data_segment

(

int

dest

)

Map a given SMPI privatization segment (make a SMPI process active)

smpi_really_switch_data_segment()

void smpi_really_switch_data_segment

(

int

dest

)

Map a given SMPI privatization segment (make a SMPI process active) even if SMPI thinks it is already active.

When doing a state restoration, the state of the restored variables might not be consistent with the state of the virtual memory. In this case, we to change the data segment.

smpi_is_privatisation_file()

int smpi_is_privatisation_file

(

char *

file

)

smpi_initialize_global_memory_segments()

void smpi_initialize_global_memory_segments

(

)

smpi_destroy_global_memory_segments()

void smpi_destroy_global_memory_segments

(

)

Variable Documentation

smpi_loaded_page

int smpi_loaded_page = -1

smpi_start_data_exe

char* smpi_start_data_exe = nullptr

smpi_size_data_exe

int smpi_size_data_exe = 0

smpi_privatize_global_variables

int smpi_privatize_global_variables

PROT_RWX

const int PROT_RWX = (PROT_READ | PROT_WRITE | PROT_EXEC)

static

PROT_RW

const int PROT_RW = (PROT_READ | PROT_WRITE )

static

PROT_RX

XBT_ATTRIB_UNUSED const int PROT_RX = (PROT_READ | PROT_EXEC )

static