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/* ---------------------------------------------------------------- */
/* (C)Copyright IBM Corp. 2007, 2008 */
/* ---------------------------------------------------------------- */
/**
* \file ad_gpfs_aggrs.h
* \brief ???
*/
/*
* File: ad_gpfs_aggrs.h
*
* Declares functions optimized specifically for GPFS parallel I/O solution.
*
*/
#ifndef AD_GPFS_AGGRS_H_
#define AD_GPFS_AGGRS_H_
#include "adio.h"
#include <sys/stat.h>
#ifdef HAVE_GPFS_H
#include <gpfs.h>
#endif
/* overriding ADIOI_Calc_file_domains() to apply 'aligned file domain partitioning'. */
void ADIOI_GPFS_Calc_file_domains(ADIO_File fd,
ADIO_Offset *st_offsets,
ADIO_Offset *end_offsets,
int nprocs,
int nprocs_for_coll,
ADIO_Offset *min_st_offset_ptr,
ADIO_Offset **fd_start_ptr,
ADIO_Offset **fd_end_ptr,
ADIO_Offset *fd_size_ptr,
void *fs_ptr);
/* overriding ADIOI_Calc_aggregator() for the default implementation is specific for
static file domain partitioning */
int ADIOI_GPFS_Calc_aggregator(ADIO_File fd,
ADIO_Offset off,
ADIO_Offset min_off,
ADIO_Offset *len,
ADIO_Offset fd_size,
ADIO_Offset *fd_start,
ADIO_Offset *fd_end);
/* overriding ADIOI_Calc_my_req for the default implementation is specific for
static file domain partitioning */
void ADIOI_GPFS_Calc_my_req ( ADIO_File fd, ADIO_Offset *offset_list, ADIO_Offset *len_list,
int contig_access_count, ADIO_Offset
min_st_offset, ADIO_Offset *fd_start,
ADIO_Offset *fd_end, ADIO_Offset fd_size,
int nprocs,
int *count_my_req_procs_ptr,
int **count_my_req_per_proc_ptr,
ADIOI_Access **my_req_ptr,
int **buf_idx_ptr);
/*
* ADIOI_Calc_others_req
*
* param[in] count_my_req_procs Number of processes whose file domain my
* request touches.
* param[in] count_my_req_per_proc count_my_req_per_proc[i] gives the no. of
* contig. requests of this process in
* process i's file domain.
* param[in] my_req A structure defining my request
* param[in] nprocs Number of nodes in the block
* param[in] myrank Rank of this node
* param[out] count_others_req_proc_ptr Number of processes whose requests lie in
* my process's file domain (including my
* process itself)
* param[out] others_req_ptr Array of other process' requests that lie
* in my process's file domain
*/
void ADIOI_GPFS_Calc_others_req(ADIO_File fd, int count_my_req_procs,
int *count_my_req_per_proc,
ADIOI_Access *my_req,
int nprocs, int myrank,
int *count_others_req_procs_ptr,
ADIOI_Access **others_req_ptr);
#endif /* AD_GPFS_AGGRS_H_ */
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