sion_generic_mapped.c File Reference

Internal Functions(parallel) More...

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include "sion.h"
#include "sion_debug.h"
#include "sion_error_handler.h"
#include "sion_file.h"
#include "sion_filedesc.h"
#include "sion_fd.h"
#include "sion_metadata.h"
#include "sion_internal.h"
#include "sion_internal_startptr.h"
#include "sion_printts.h"
#include "sion_buffer.h"
#include "sion_keyvalue.h"
#include "sion_generic_internal.h"
#include "sion_generic_collective.h"

Include dependency graph for sion_generic_mapped.c:

Go to the source code of this file.

Macros
#define	_XOPEN_SOURCE   700
#define	_SION_CONST_MAX_INT32   2147483647

Functions
int	_sion_paropen_mapped_generic (int sid, char *fname, sion_int64 file_mode_flags, char *prefix, int *numFiles, int *nlocaltasks, int **globalranks, sion_int64 **chunksizes, int **mapping_filenrs, int **mapping_lranks, sion_int32 *fsblksize, int rank, int ntasks, int flag, FILE **fileptr, _sion_generic_gendata *sion_gendata)
	Generic parallel open of one direct access file. Mapping sion files to environment with less tasks. More...
int	_sion_parclose_mapped_generic (int sid, int rank, int ntasks, _sion_generic_gendata *sion_gendata)

Detailed Description

Internal Functions(parallel)

Definition in file sion_generic_mapped.c.

Function Documentation

_sion_paropen_mapped_generic()

int _sion_paropen_mapped_generic	(	int	sid,
		char *	fname,
		sion_int64	file_mode_flags,
		char *	prefix,
		int *	numFiles,
		int *	nlocaltasks,
		int **	globalranks,
		sion_int64 **	chunksizes,
		int **	mapping_filenrs,
		int **	mapping_lranks,
		sion_int32 *	fsblksize,
		int	rank,
		int	ntasks,
		int	flag,
		FILE **	fileptr,
		_sion_generic_gendata *	sion_gendata
	)

Generic parallel open of one direct access file. Mapping sion files to environment with less tasks.

Parameters

sid	sion file handle
fname	filename to use
file_mode_flags	flags from already parsed file_mode (see also sion_internal.h)
prefix	prefix to be used in case of multiple files
numFiles	Number of files to open
nlocaltasks	FIXME
globalranks	FIXME
chunksizes	chunksizes for all tasks
mapping_filenrs	FIXME
mapping_lranks	FIXME
fsblksize	blocksize of filesystem (must be equal on all processors)
rank	rank of the current process
ntasks	number of processes
flag	sion options flag
fileptr	filepointer for this task
sion_gendata	FIXME

Returns

sion file handle -1 if error occured

Definition at line 69 of file sion_generic_mapped.c.