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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
/*
* ad_panfs_hints.c
*
* Copyright (C) 2001 University of Chicago.
* See COPYRIGHT notice in top-level directory.
*/
#include "ad_panfs.h"
#include <pan_fs_client_cw_mode.h>
#include "hint_fns.h"
void ADIOI_PANFS_SetInfo(ADIO_File fd, MPI_Info users_info, int *error_code)
{
#if defined(MPICH) || !defined(PRINT_ERR_MSG)
static char myname[] = "ADIOI_PANFS_SETINFO";
#endif
int gen_error_code;
*error_code = MPI_SUCCESS;
if (fd->info == MPI_INFO_NULL) {
/* This must be part of the open call. can set striping parameters
* if necessary.
*/
MPI_Info_create(&(fd->info));
/* anticipate concurrent writes in an MPI-IO application */
ADIOI_Info_set (fd->info, "panfs_concurrent_write", "1");
/* has user specified striping parameters
and do they have the same value on all processes? */
if (users_info != MPI_INFO_NULL) {
ADIOI_Info_check_and_install_int(fd, users_info, "panfs_concurrent_write",
NULL, myname, error_code);
ADIOI_Info_check_and_install_int(fd, users_info, "panfs_layout_type",
NULL, myname, error_code);
ADIOI_Info_check_and_install_int(fd, users_info, "panfs_layout_stripe_unit",
NULL, myname, error_code);
/* strange: there was a check "layout_type ==
* PAN_FS_CLIENT_LAYOUT_TYPE__RAID1_5_PARITY_STRIPE, but
* nothing ever touched layout_type */
ADIOI_Info_check_and_install_int(fd, users_info,
"panfs_layout_parity_stripe_width", NULL, myname, error_code);
ADIOI_Info_check_and_install_int(fd, users_info,
"panfs_layout_parity_stripe_depth", NULL, myname, error_code);
ADIOI_Info_check_and_install_int(fd, users_info,
"panfs_layout_total_num_comps", NULL, myname, error_code);
/* this hint used to check for
* PAN_FS_CLIENT_LAYOUT_TYPE__RAID1_5_PARITY_STRIPE or
* PAN_FS_CLIENT_LAYOUT_TYPE__RAID10, but again, layout_type never
* gets updated */
ADIOI_Info_check_and_install_int(fd, users_info,
"panfs_layout_visit_policy", NULL, myname, error_code);
}
}
ADIOI_GEN_SetInfo(fd, users_info, &gen_error_code);
/* If this function is successful, use the error code returned from ADIOI_GEN_SetInfo
* otherwise use the error_code generated by this function
*/
if(*error_code == MPI_SUCCESS)
{
*error_code = gen_error_code;
}
}
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