OpenMP Parallel API

Open (and close) SIONlib files from multiple OpenMP threads in parallel. More...

Functions
int	sion_paropen_omp (const char *fname, const char *file_mode, int64_t *chunksize, int32_t *fsblksize, int *globalrank, FILE **fileptr, char **newfname)
	Open a sion file using OpenMP. More...
int	sion_parclose_omp (int sid)
	closes a SION file previously opened in OpenMP mode More...

Detailed Description

Open (and close) SIONlib files from multiple OpenMP threads in parallel.

See also

API Overview

Function Documentation

sion_parclose_omp()

int sion_parclose_omp

(

int

sid

)

closes a SION file previously opened in OpenMP mode

Parameters

[in]

*sid

SION file id

Definition at line 129 of file sion_omp_gen.c.

sion_paropen_omp()

int sion_paropen_omp	(	const char *	fname,
		const char *	file_mode,
		int64_t *	chunksize,
		int32_t *	fsblksize,
		int *	globalrank,
		FILE **	fileptr,
		char **	newfname
	)

Open a sion file using OpenMP.

This function opens a sion file using OpenMP. It processes the OpenMP specific parts and then passes its arguments on to sion_generic_paropen().

Parameters

[in]	fname	name of file, should be equal on all tasks
[in]	file_mode	like the type parameter of fopen (currently recognized options: "rb", "wb")
[in,out]	chunksize	maximum size to be written with single write call
[in,out]	fsblksize	file system block size (-1 for automatic)
[in,out]	globalrank	global rank of process
[in,out]	fileptr	file pointer (NULL for not using an external file pointer)
[out]	newfname	return value for actual file name if using multi files

Return values

sid	sion file handle or -1 if error occured

Definition at line 47 of file sion_omp_gen.c.