gfs_pio_set_local(3) [debian man page]

GFS_PIO_SET_LOCAL(3)													      GFS_PIO_SET_LOCAL(3)

NAME

       gfs_pio_set_local - initialize the local file view environment

SYNOPSIS

       #include <gfarm/gfarm.h>

       char *gfs_pio_set_local (int node, int nnode);

DESCRIPTION

       gfs_pio_set_local() initializes the environment for the local file view with the node number node and the total number of nodes nnode.

RETURN VALUES

       NULL   The function terminated successfully.

       Others An error except the above occurred.  The reason is shown by its pointed strings.

SEE ALSO

       gfs_pio_set_view_local(3), gfs_pio_set_view_index(3)

Gfarm								   18 March 2003					      GFS_PIO_SET_LOCAL(3)

GFS_PIO_SET_VIEW_INDEX(3)												 GFS_PIO_SET_VIEW_INDEX(3)

NAME

       gfs_pio_set_view_index - change file view to an individual fragment

SYNOPSIS

       #include <gfarm/gfarm.h>

       char *gfs_pio_set_view_index (GFS_File gf, int fragment_number, int fragment_index, char *host, int flags);

DESCRIPTION

       gfs_pio_set_view_index()  changes  the  process's  view	of  the  data  in the file specified by gf to a file fragment with the index frag-
       ment_index.

       When creating a new file, it is necessary to specify the total number of file fragments fragment_number.   Every  parallel  process  should
       specify the same fragment_number for the corresponding file.  When the file exists, GFARM_FILE_DONTCARE can be specified.  If fragment_num-
       ber is different from the total fragment number of the existent file, it is erroneous.

       host is used for explicitly specifying a filesystem node.  If host is NULL, appropriate filesystem node is chosen.

       Values of flag are constructed by a bitwise-inclusive-OR of the following list.

       GFARM_FILE_SEQUENTIAL
	      File will be accessed sequentially.

       GFARM_FILE_REPLICATE
	      File may be replicated to a local filesystem when accessing remotely.  This flag cannot be specified with GFARM_FILE_NOT_REPLICATE.

       GFARM_FILE_NOT_REPLICATE
	      File may not be replicated to a local filesystem when accessing remotely.  This flag cannot be specified with GFARM_FILE_REPLICATE.

       By default, Gfarm files are accessed as a whole file in global file view where each fragment can be seamlessly accessed.

RETURN VALUES

       NULL   The function terminated successfully.

       GFARM_ERR_NO_MEMORY
	      Insufficient memory was available.

       GFARM_ERR_OPERATION_NOT_PERMITTED
	      The file is not a regular fragmented file.

       GFARM_ERR_FRAGMENT_NUMBER_DOES_NOT_MATCH
	      The total number of file fragments is different from the existence one.

       GFARM_ERR_INVALID_ARGUMENT
	      Invalid arguments are specified, for instance, GFARM_FILE_DONTCARE is specified as the total number of fragments of a newly  created
	      file.

       Others An error except the above occurred.  The reason is shown by its pointed strings.

SEE ALSO

       gfs_pio_create(3), gfs_pio_open(3), gfs_pio_set_view_local(3)

Gfarm								 06 September 2005					 GFS_PIO_SET_VIEW_INDEX(3)