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/* -*- Mode: C; c-basic-offset:4 ; -*- */
/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2007 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2008-2015 University of Houston. All rights reserved.
* Copyright (c) 2015 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#ifndef MCA_IO_OMPIO_H
#define MCA_IO_OMPIO_H
#include <fcntl.h>
#include "mpi.h"
#include "opal/class/opal_list.h"
#include "ompi/errhandler/errhandler.h"
#include "opal/threads/mutex.h"
#include "ompi/file/file.h"
#include "ompi/mca/io/io.h"
#include "ompi/mca/fs/fs.h"
#include "ompi/mca/fcoll/fcoll.h"
#include "ompi/mca/fbtl/fbtl.h"
#include "ompi/mca/sharedfp/sharedfp.h"
#include "ompi/communicator/communicator.h"
#include "ompi/info/info.h"
#include "opal/datatype/opal_convertor.h"
#include "ompi/datatype/ompi_datatype.h"
#include "ompi/request/request.h"
extern int mca_io_ompio_cycle_buffer_size;
extern int mca_io_ompio_bytes_per_agg;
extern int mca_io_ompio_num_aggregators;
extern int mca_io_ompio_record_offset_info;
extern int mca_io_ompio_sharedfp_lazy_open;
extern int mca_io_ompio_grouping_option;
OMPI_DECLSPEC extern int mca_io_ompio_coll_timing_info;
/*
* Flags
*/
#define OMPIO_CONTIGUOUS_MEMORY 0x00000001
#define OMPIO_UNIFORM_FVIEW 0x00000002
#define OMPIO_FILE_IS_OPEN 0x00000004
#define OMPIO_FILE_VIEW_IS_SET 0x00000008
#define OMPIO_CONTIGUOUS_FVIEW 0x00000010
#define OMPIO_AGGREGATOR_IS_SET 0x00000020
#define OMPIO_SHAREDFP_IS_SET 0x00000040
#define QUEUESIZE 2048
#define MCA_IO_DEFAULT_FILE_VIEW_SIZE 4*1024*1024
#define OMPIO_FCOLL_WANT_TIME_BREAKDOWN 0
#define OMPIO_MIN(a, b) (((a) < (b)) ? (a) : (b))
#define OMPIO_MAX(a, b) (((a) < (b)) ? (b) : (a))
/*
* General values
*/
#define OMPIO_PREALLOC_MAX_BUF_SIZE 33554432
#define OMPIO_DEFAULT_CYCLE_BUF_SIZE 536870912
#define OMPIO_PERM_NULL -1
#define OMPIO_IOVEC_INITIAL_SIZE 100
#define OMPIO_ROOT 0
#define OMPIO_MAX_NAME 100
#define OMPIO_TAG_GATHER -100
#define OMPIO_TAG_GATHERV -101
#define OMPIO_TAG_BCAST -102
#define OMPIO_TAG_SCATTERV -103
/* ACCESS MODES --- not needed.. just use MPI_MODE_... */
#define OMPIO_MODE_CREATE 1
#define OMPIO_MODE_RDONLY 2
#define OMPIO_MODE_WRONLY 4
#define OMPIO_MODE_RDWR 8
#define OMPIO_MODE_DELETE_ON_CLOSE 16
#define OMPIO_MODE_UNIQUE_OPEN 32
#define OMPIO_MODE_EXCL 64
#define OMPIO_MODE_APPEND 128
#define OMPIO_MODE_SEQUENTIAL 256
/* PRINT QUEUES*/
#define WRITE_PRINT_QUEUE 1809
#define READ_PRINT_QUEUE 2178
/*---------------------------*/
/*AGGREGATOR GROUPING DECISIONS*/
#define OMPIO_MERGE 1
#define OMPIO_SPLIT 2
#define OMPIO_RETAIN 3
#define DATA_VOLUME 1
#define UNIFORM_DISTRIBUTION 2
#define CONTIGUITY 3
#define OPTIMIZE_GROUPING 4
#define SIMPLE 5
#define NO_REFINEMENT 6
#define OMPIO_UNIFORM_DIST_THRESHOLD 0.5
#define OMPIO_CONTG_THRESHOLD 1048576
#define OMPIO_CONTG_FACTOR 8
#define OMPIO_DEFAULT_STRIPE_SIZE 1048576
#define OMPIO_PROCS_PER_GROUP_TAG 0
#define OMPIO_PROCS_IN_GROUP_TAG 1
#define OMPIO_MERGE_THRESHOLD 0.5
/*---------------------------*/
BEGIN_C_DECLS
enum ompio_fs_type
{
NONE = 0,
UFS = 1,
PVFS2 = 2,
LUSTRE = 3,
PLFS = 4
};
OMPI_DECLSPEC extern mca_io_base_component_2_0_0_t mca_io_ompio_component;
/*
* global variables, instantiated in module.c
*/
extern opal_mutex_t mca_io_ompio_mutex;
extern mca_io_base_module_2_0_0_t mca_io_ompio_module;
OMPI_DECLSPEC extern mca_io_base_component_2_0_0_t mca_io_ompio_component;
typedef struct mca_io_ompio_io_array_t {
void *memory_address;
/* we need that of type OMPI_MPI_OFFSET_TYPE */
void *offset;
size_t length;
/*mca_io_ompio_server_t io_server;*/
} mca_io_ompio_io_array_t;
typedef struct mca_io_ompio_access_array_t{
OMPI_MPI_OFFSET_TYPE *offsets;
int *lens;
MPI_Aint *mem_ptrs;
int count;
} mca_io_ompio_access_array_t;
/*Used in extracting offset adj-matrix*/
typedef struct mca_io_ompio_offlen_array_t{
OMPI_MPI_OFFSET_TYPE offset;
MPI_Aint length;
int process_id;
}mca_io_ompio_offlen_array_t;
/*To extract time-information */
typedef struct {
double time[3];
int nprocs_for_coll;
int aggregator;
}mca_io_ompio_print_entry;
typedef struct {
mca_io_ompio_print_entry entry[QUEUESIZE + 1];
int first;
int last;
int count;
} mca_io_ompio_print_queue;
typedef struct {
int ndims;
int *dims;
int *periods;
int *coords;
int reorder;
} cart_topo_components;
typedef struct{
OMPI_MPI_OFFSET_TYPE contg_chunk_size;
int *procs_in_contg_group;
int procs_per_contg_group;
} contg;
/*
* Function that takes in a datatype and buffer, and decodes that datatype
* into an iovec using the convertor_raw function
*/
/* forward declaration to keep the compiler happy. */
struct mca_io_ompio_file_t;
typedef int (*mca_io_ompio_decode_datatype_fn_t) (struct mca_io_ompio_file_t *fh,
struct ompi_datatype_t *datatype,
int count,
const void *buf,
size_t *max_data,
struct iovec **iov,
uint32_t *iov_count);
typedef int (*mca_io_ompio_generate_current_file_view_fn_t) (struct mca_io_ompio_file_t *fh,
size_t max_data,
struct iovec **f_iov,
int *iov_count);
/*
* Function that sorts an io_array according to the offset by filling
* up an array of the indices into the array (HEAP SORT)
*/
typedef int (*mca_io_ompio_sort_fn_t) (mca_io_ompio_io_array_t *io_array,
int num_entries,
int *sorted);
typedef int (*mca_io_ompio_sort_iovec_fn_t) (struct iovec *iov,
int num_entries,
int *sorted);
/* collective operations based on list of participating ranks instead of communicators*/
typedef int (*mca_io_ompio_allgather_array_fn_t) (void *sbuf,
int scount,
ompi_datatype_t *sdtype,
void *rbuf,
int rcount,
ompi_datatype_t *rdtype,
int root_index,
int *procs_in_group,
int procs_per_group,
ompi_communicator_t *comm);
typedef int (*mca_io_ompio_allgatherv_array_fn_t) (void *sbuf,
int scount,
ompi_datatype_t *sdtype,
void *rbuf,
int *rcounts,
int *disps,
ompi_datatype_t *rdtype,
int root_index,
int *procs_in_group,
int procs_per_group,
ompi_communicator_t *comm);
typedef int (*mca_io_ompio_gather_array_fn_t) (void *sbuf,
int scount,
ompi_datatype_t *sdtype,
void *rbuf,
int rcount,
ompi_datatype_t *rdtype,
int root_index,
int *procs_in_group,
int procs_per_group,
ompi_communicator_t *comm);
typedef int (*mca_io_ompio_gatherv_array_fn_t) (void *sbuf,
int scount,
ompi_datatype_t *sdtype,
void *rbuf,
int *rcounts,
int *disps,
ompi_datatype_t *rdtype,
int root_index,
int *procs_in_group,
int procs_per_group,
ompi_communicator_t *comm);
/* functions to retrieve the number of aggregators and the size of the
temporary buffer on aggregators from the fcoll modules */
typedef void (*mca_io_ompio_get_num_aggregators_fn_t) ( int *num_aggregators);
typedef void (*mca_io_ompio_get_bytes_per_agg_fn_t) ( int *bytes_per_agg);
typedef int (*mca_io_ompio_set_aggregator_props_fn_t) (struct mca_io_ompio_file_t *fh,
int num_aggregators,
size_t bytes_per_proc);
typedef int (*mca_io_ompio_full_print_queue_fn_t) (int queue_type);
typedef int (*mca_io_ompio_register_print_entry_fn_t) (int queue_type,
mca_io_ompio_print_entry x);
/**
* Back-end structure for MPI_File
*/
struct mca_io_ompio_file_t {
/* General parameters */
int fd;
struct ompi_file_t *f_fh; /* pointer back to the file_t structure */
OMPI_MPI_OFFSET_TYPE f_offset; /* byte offset of current position */
OMPI_MPI_OFFSET_TYPE f_disp; /* file_view displacement */
int f_rank;
int f_size;
int f_amode;
int f_perm;
ompi_communicator_t *f_comm;
const char *f_filename;
char *f_datarep;
opal_convertor_t *f_convertor;
ompi_info_t *f_info;
int32_t f_flags;
void *f_fs_ptr;
int f_atomicity;
size_t f_stripe_size;
size_t f_cc_size;
int f_bytes_per_agg;
enum ompio_fs_type f_fstype;
ompi_request_t *f_split_coll_req;
bool f_split_coll_in_use;
/* Place for selected sharedfp module to hang it's data.
Note: Neither f_sharedfp nor f_sharedfp_component seemed appropriate for this.
*/
void *f_sharedfp_data;
/* process grouping parameters */
int *f_procs_in_group;
int f_procs_per_group;
int f_aggregator_index;
/* File View parameters */
struct iovec *f_decoded_iov;
uint32_t f_iov_count;
ompi_datatype_t *f_iov_type;
size_t f_position_in_file_view; /* in bytes */
size_t f_total_bytes; /* total bytes read/written within 1 Fview*/
int f_index_in_file_view;
OPAL_PTRDIFF_TYPE f_view_extent;
size_t f_view_size;
ompi_datatype_t *f_etype;
ompi_datatype_t *f_filetype;
ompi_datatype_t *f_orig_filetype; /* the fileview passed by the user to us */
size_t f_etype_size;
/* contains IO requests that needs to be read/written */
mca_io_ompio_io_array_t *f_io_array;
int f_num_of_io_entries;
/* Hooks for modules to hang things */
mca_base_component_t *f_fs_component;
mca_base_component_t *f_fcoll_component;
mca_base_component_t *f_fbtl_component;
mca_base_component_t *f_sharedfp_component;
/* structure of function pointers */
mca_fs_base_module_t *f_fs;
mca_fcoll_base_module_t *f_fcoll;
mca_fbtl_base_module_t *f_fbtl;
mca_sharedfp_base_module_t *f_sharedfp;
/* No Error handling done yet
struct ompi_errhandler_t *error_handler;
ompi_errhandler_type_t errhandler_type;
*/
/*initial list of aggregators and groups*/
int *f_init_aggr_list;
int f_init_num_aggrs;
int f_init_procs_per_group;
int *f_init_procs_in_group;
int f_final_num_aggrs;
/* internal ompio functions required by fbtl and fcoll */
mca_io_ompio_decode_datatype_fn_t f_decode_datatype;
mca_io_ompio_generate_current_file_view_fn_t f_generate_current_file_view;
mca_io_ompio_sort_fn_t f_sort;
mca_io_ompio_sort_iovec_fn_t f_sort_iovec;
mca_io_ompio_allgather_array_fn_t f_allgather_array;
mca_io_ompio_allgatherv_array_fn_t f_allgatherv_array;
mca_io_ompio_gather_array_fn_t f_gather_array;
mca_io_ompio_gatherv_array_fn_t f_gatherv_array;
mca_io_ompio_get_num_aggregators_fn_t f_get_num_aggregators;
mca_io_ompio_get_bytes_per_agg_fn_t f_get_bytes_per_agg;
mca_io_ompio_set_aggregator_props_fn_t f_set_aggregator_props;
mca_io_ompio_full_print_queue_fn_t f_full_print_queue;
mca_io_ompio_register_print_entry_fn_t f_register_print_entry;
};
typedef struct mca_io_ompio_file_t mca_io_ompio_file_t;
struct mca_io_ompio_data_t {
mca_io_ompio_file_t ompio_fh;
};
typedef struct mca_io_ompio_data_t mca_io_ompio_data_t;
OMPI_DECLSPEC extern mca_io_ompio_print_queue *coll_write_time;
OMPI_DECLSPEC extern mca_io_ompio_print_queue *coll_read_time;
/* functions to retrieve the number of aggregators and the size of the
temporary buffer on aggregators from the fcoll modules */
OMPI_DECLSPEC void mca_io_ompio_get_num_aggregators ( int *num_aggregators);
OMPI_DECLSPEC void mca_io_ompio_get_bytes_per_agg ( int *bytes_per_agg);
OMPI_DECLSPEC int mca_io_ompio_build_io_array ( mca_io_ompio_file_t *fh, int index, int cycles,
size_t bpc, int max_data, uint32_t iov_count,
struct iovec *decoded_iov, int *ii, int *jj,
size_t *tbw );
OMPI_DECLSPEC int ompi_io_ompio_set_file_defaults (mca_io_ompio_file_t *fh);
OMPI_DECLSPEC int ompio_io_ompio_file_open (ompi_communicator_t *comm,
const char *filename,
int amode,
ompi_info_t *info,
mca_io_ompio_file_t *fh,bool use_sharedfp);
OMPI_DECLSPEC int ompio_io_ompio_file_write_at (mca_io_ompio_file_t *fh,
OMPI_MPI_OFFSET_TYPE offset,
const void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_status_public_t *status);
OMPI_DECLSPEC int ompio_io_ompio_file_write (mca_io_ompio_file_t *fh,
const void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_status_public_t *status);
OMPI_DECLSPEC int ompio_io_ompio_file_close (mca_io_ompio_file_t *fh);
OMPI_DECLSPEC int ompio_io_ompio_file_write_at_all (mca_io_ompio_file_t *fh,
OMPI_MPI_OFFSET_TYPE offset,
const void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_status_public_t *status);
OMPI_DECLSPEC int ompio_io_ompio_file_iwrite_at (mca_io_ompio_file_t *fh,
OMPI_MPI_OFFSET_TYPE offset,
const void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_request_t **request);
OMPI_DECLSPEC int ompio_io_ompio_file_iwrite (mca_io_ompio_file_t *fh,
const void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_request_t **request);
OMPI_DECLSPEC int ompio_io_ompio_file_iwrite_at_all (mca_io_ompio_file_t *fh,
OMPI_MPI_OFFSET_TYPE offset,
const void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_request_t **request);
OMPI_DECLSPEC int ompio_io_ompio_file_iread (mca_io_ompio_file_t *fh,
void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_request_t **request);
OMPI_DECLSPEC int ompio_io_ompio_file_read (mca_io_ompio_file_t *fh,
void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_status_public_t *status);
OMPI_DECLSPEC int ompio_io_ompio_file_iread_at (mca_io_ompio_file_t *fh,
OMPI_MPI_OFFSET_TYPE offset,
void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_request_t **request);
OMPI_DECLSPEC int ompio_io_ompio_file_iread_at_all (mca_io_ompio_file_t *fh,
OMPI_MPI_OFFSET_TYPE offset,
void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_request_t **request);
OMPI_DECLSPEC int ompio_io_ompio_file_read_at (mca_io_ompio_file_t *fh,
OMPI_MPI_OFFSET_TYPE offset,
void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_status_public_t * status);
OMPI_DECLSPEC int ompio_io_ompio_file_read_at_all (mca_io_ompio_file_t *fh,
OMPI_MPI_OFFSET_TYPE offset,
void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_status_public_t * status);
OMPI_DECLSPEC int ompio_io_ompio_file_get_size (mca_io_ompio_file_t *fh,
OMPI_MPI_OFFSET_TYPE *size);
OMPI_DECLSPEC int ompio_io_ompio_file_get_position (mca_io_ompio_file_t *fh,
OMPI_MPI_OFFSET_TYPE *offset);
/*
* Function that takes in a datatype and buffer, and decodes that datatype
* into an iovec using the convertor_raw function
*/
OMPI_DECLSPEC int ompi_io_ompio_decode_datatype (struct mca_io_ompio_file_t *fh,
struct ompi_datatype_t *datatype,
int count,
const void *buf,
size_t *max_data,
struct iovec **iov,
uint32_t *iov_count);
/*
* Function that sorts an io_array according to the offset by filling
* up an array of the indices into the array (HEAP SORT)
*/
OMPI_DECLSPEC int ompi_io_ompio_sort (mca_io_ompio_io_array_t *io_array,
int num_entries,
int *sorted);
OMPI_DECLSPEC int ompi_io_ompio_sort_iovec (struct iovec *iov,
int num_entries,
int *sorted);
OMPI_DECLSPEC int ompi_io_ompio_sort_offlen (mca_io_ompio_offlen_array_t *io_array,
int num_entries,
int *sorted);
OMPI_DECLSPEC int ompi_io_ompio_set_explicit_offset (mca_io_ompio_file_t *fh,
OMPI_MPI_OFFSET_TYPE offset);
OMPI_DECLSPEC int ompi_io_ompio_generate_current_file_view (struct mca_io_ompio_file_t *fh,
size_t max_data,
struct iovec **f_iov,
int *iov_count);
OMPI_DECLSPEC int ompi_io_ompio_generate_groups (mca_io_ompio_file_t *fh,
int num_aggregators,
int *root,
int *procs_per_group,
int **ranks);
/*Aggregator selection methods*/
OMPI_DECLSPEC int ompi_io_ompio_set_aggregator_props (struct mca_io_ompio_file_t *fh,
int num_aggregators,
size_t bytes_per_proc);
int mca_io_ompio_cart_based_grouping(mca_io_ompio_file_t *ompio_fh);
int mca_io_ompio_fview_based_grouping(mca_io_ompio_file_t *fh,
int *num_groups,
contg *contg_groups);
int mca_io_ompio_simple_grouping(mca_io_ompio_file_t *fh,
int *num_groups,
contg *contg_groups);
int mca_io_ompio_finalize_initial_grouping(mca_io_ompio_file_t *fh,
int num_groups,
contg *contg_groups);
OMPI_DECLSPEC int ompi_io_ompio_break_file_view (mca_io_ompio_file_t *fh,
struct iovec *iov,
int count,
int num_aggregators,
size_t stripe_size,
struct iovec **broken_iov,
int *broken_count);
OMPI_DECLSPEC int ompi_io_ompio_distribute_file_view (mca_io_ompio_file_t *fh,
struct iovec *broken_iov,
int broken_count,
int num_aggregators,
size_t stripe_size,
int **fview_count,
struct iovec **iov,
int *count);
OMPI_DECLSPEC int ompi_io_ompio_gather_data (mca_io_ompio_file_t *fh,
void *send_buf,
size_t total_bytes_sent,
int *bytes_sent,
struct iovec *broken_iovec,
int broken_index,
size_t partial,
void *global_buf,
int *bytes_per_process,
int *displs,
int num_aggregators,
size_t stripe_size);
OMPI_DECLSPEC int ompi_io_ompio_scatter_data (mca_io_ompio_file_t *fh,
void *receive_buf,
size_t total_bytes_recv,
int *bytes_received,
struct iovec *broken_iovec,
int broken_index,
size_t partial,
void *global_buf,
int *bytes_per_process,
int *displs,
int num_aggregators,
size_t stripe_size);
/*
* Modified versions of Collective operations
* Based on an array of procs in group
*/
OMPI_DECLSPEC int ompi_io_ompio_gatherv_array (void *sbuf,
int scount,
ompi_datatype_t *sdtype,
void *rbuf,
int *rcounts,
int *disps,
ompi_datatype_t *rdtype,
int root_index,
int *procs_in_group,
int procs_per_group,
ompi_communicator_t *comm);
OMPI_DECLSPEC int ompi_io_ompio_scatterv_array (void *sbuf,
int *scounts,
int *disps,
ompi_datatype_t *sdtype,
void *rbuf,
int rcount,
ompi_datatype_t *rdtype,
int root_index,
int *procs_in_group,
int procs_per_group,
ompi_communicator_t *comm);
OMPI_DECLSPEC int ompi_io_ompio_allgather_array (void *sbuf,
int scount,
ompi_datatype_t *sdtype,
void *rbuf,
int rcount,
ompi_datatype_t *rdtype,
int root_index,
int *procs_in_group,
int procs_per_group,
ompi_communicator_t *comm);
OMPI_DECLSPEC int ompi_io_ompio_allgatherv_array (void *sbuf,
int scount,
ompi_datatype_t *sdtype,
void *rbuf,
int *rcounts,
int *disps,
ompi_datatype_t *rdtype,
int root_index,
int *procs_in_group,
int procs_per_group,
ompi_communicator_t *comm);
OMPI_DECLSPEC int ompi_io_ompio_gather_array (void *sbuf,
int scount,
ompi_datatype_t *sdtype,
void *rbuf,
int rcount,
ompi_datatype_t *rdtype,
int root_index,
int *procs_in_group,
int procs_per_group,
ompi_communicator_t *comm);
OMPI_DECLSPEC int ompi_io_ompio_bcast_array (void *buff,
int count,
ompi_datatype_t *datatype,
int root_index,
int *procs_in_group,
int procs_per_group,
ompi_communicator_t *comm);
OMPI_DECLSPEC int ompi_io_ompio_register_print_entry (int queue_type,
mca_io_ompio_print_entry x);
OMPI_DECLSPEC int ompi_io_ompio_unregister_print_entry (int queue_type, mca_io_ompio_print_entry *x);
OMPI_DECLSPEC int ompi_io_ompio_empty_print_queue(int queue_type);
OMPI_DECLSPEC int ompi_io_ompio_full_print_queue(int queue_type);
OMPI_DECLSPEC int ompi_io_ompio_initialize_print_queue(mca_io_ompio_print_queue *q);
OMPI_DECLSPEC int ompi_io_ompio_print_time_info(int queue_type,
char *name_operation,
mca_io_ompio_file_t *fh);
int ompi_io_ompio_set_print_queue (mca_io_ompio_print_queue **q,
int queue_type);
/*
* ******************************************************************
* ********* functions which are implemented in this module *********
* ******************************************************************
*/
int mca_io_ompio_file_set_view (struct ompi_file_t *fh,
OMPI_MPI_OFFSET_TYPE disp,
struct ompi_datatype_t *etype,
struct ompi_datatype_t *filetype,
const char *datarep,
struct ompi_info_t *info);
int mca_io_ompio_set_view_internal (struct mca_io_ompio_file_t *fh,
OMPI_MPI_OFFSET_TYPE disp,
struct ompi_datatype_t *etype,
struct ompi_datatype_t *filetype,
const char *datarep,
struct ompi_info_t *info);
int mca_io_ompio_file_get_view (struct ompi_file_t *fh,
OMPI_MPI_OFFSET_TYPE *disp,
struct ompi_datatype_t **etype,
struct ompi_datatype_t **filetype,
char *datarep);
int mca_io_ompio_file_open (struct ompi_communicator_t *comm,
const char *filename,
int amode,
struct ompi_info_t *info,
struct ompi_file_t *fh);
int mca_io_ompio_file_close (struct ompi_file_t *fh);
int mca_io_ompio_file_delete (const char *filename,
struct ompi_info_t *info);
int mca_io_ompio_file_set_size (struct ompi_file_t *fh,
OMPI_MPI_OFFSET_TYPE size);
int mca_io_ompio_file_preallocate (struct ompi_file_t *fh,
OMPI_MPI_OFFSET_TYPE size);
int mca_io_ompio_file_get_size (struct ompi_file_t *fh,
OMPI_MPI_OFFSET_TYPE * size);
int mca_io_ompio_file_get_amode (struct ompi_file_t *fh,
int *amode);
int mca_io_ompio_file_set_info (struct ompi_file_t *fh,
struct ompi_info_t *info);
int mca_io_ompio_file_get_info (struct ompi_file_t *fh,
struct ompi_info_t ** info_used);
int mca_io_ompio_file_sync (struct ompi_file_t *fh);
int mca_io_ompio_file_seek (struct ompi_file_t *fh,
OMPI_MPI_OFFSET_TYPE offet,
int whence);
/* Section 9.3 */
int mca_io_ompio_file_set_view (struct ompi_file_t *fh,
OMPI_MPI_OFFSET_TYPE disp,
struct ompi_datatype_t *etype,
struct ompi_datatype_t *filetype,
const char *datarep,
struct ompi_info_t *info);
int mca_io_ompio_file_get_view (struct ompi_file_t *fh,
OMPI_MPI_OFFSET_TYPE *disp,
struct ompi_datatype_t **etype,
struct ompi_datatype_t **filetype,
char *datarep);
/* Section 9.4.2 */
int mca_io_ompio_file_read_at (struct ompi_file_t *fh,
OMPI_MPI_OFFSET_TYPE offset,
void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_status_public_t *status);
int mca_io_ompio_file_read_at_all (struct ompi_file_t *fh,
OMPI_MPI_OFFSET_TYPE offset,
void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_status_public_t *status);
int mca_io_ompio_file_write_at (struct ompi_file_t *fh,
OMPI_MPI_OFFSET_TYPE offset,
const void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_status_public_t *status);
int mca_io_ompio_file_write_at_all (struct ompi_file_t *fh,
OMPI_MPI_OFFSET_TYPE offset,
const void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_status_public_t *status);
int mca_io_ompio_file_iread_at (struct ompi_file_t *fh,
OMPI_MPI_OFFSET_TYPE offset,
void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_request_t **request);
int mca_io_ompio_file_iwrite_at (struct ompi_file_t *fh,
OMPI_MPI_OFFSET_TYPE offset,
const void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_request_t **request);
/* Section 9.4.3 */
int mca_io_ompio_file_read (struct ompi_file_t *fh,
void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_status_public_t *status);
int mca_io_ompio_file_read_all (struct ompi_file_t *fh,
void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_status_public_t *status);
int mca_io_ompio_file_iread_all (ompi_file_t *fh,
void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_request_t **request);
int mca_io_ompio_file_iread_at_all (ompi_file_t *fh,
OMPI_MPI_OFFSET_TYPE offset,
void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_request_t **request);
int mca_io_ompio_file_write (struct ompi_file_t *fh,
const void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_status_public_t *status);
int mca_io_ompio_file_write_all (struct ompi_file_t *fh,
const void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_status_public_t *status);
int mca_io_ompio_file_iwrite_all (ompi_file_t *fh,
const void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_request_t **request);
int mca_io_ompio_file_iwrite_at_all (ompi_file_t *fh,
OMPI_MPI_OFFSET_TYPE offset,
const void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_request_t **request);
int mca_io_ompio_file_iread (struct ompi_file_t *fh,
void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_request_t **request);
int mca_io_ompio_file_iwrite (struct ompi_file_t *fh,
const void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_request_t **request);
int mca_io_ompio_file_seek (struct ompi_file_t *fh,
OMPI_MPI_OFFSET_TYPE offset,
int whence);
int mca_io_ompio_file_get_position (struct ompi_file_t *fh,
OMPI_MPI_OFFSET_TYPE *offset);
int mca_io_ompio_file_get_byte_offset (struct ompi_file_t *fh,
OMPI_MPI_OFFSET_TYPE offset,
OMPI_MPI_OFFSET_TYPE *disp);
/* Section 9.4.4 */
int mca_io_ompio_file_read_shared (struct ompi_file_t *fh,
void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_status_public_t *status);
int mca_io_ompio_file_write_shared (struct ompi_file_t *fh,
const void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_status_public_t *status);
int mca_io_ompio_file_iread_shared (struct ompi_file_t *fh,
void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_request_t **request);
int mca_io_ompio_file_iwrite_shared (struct ompi_file_t *fh,
const void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_request_t **request);
int mca_io_ompio_file_read_ordered (struct ompi_file_t *fh,
void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_status_public_t *status);
int mca_io_ompio_file_write_ordered (struct ompi_file_t *fh,
const void *buf,
int count,
struct ompi_datatype_t *datatype,
ompi_status_public_t *status);
int mca_io_ompio_file_seek_shared (struct ompi_file_t *fh,
OMPI_MPI_OFFSET_TYPE offset,
int whence);
int mca_io_ompio_file_get_position_shared (struct ompi_file_t *fh,
OMPI_MPI_OFFSET_TYPE *offset);
/* Section 9.4.5 */
int mca_io_ompio_file_read_at_all_begin (struct ompi_file_t *fh,
OMPI_MPI_OFFSET_TYPE offset,
void *buf,
int count,
struct ompi_datatype_t *datatype);
int mca_io_ompio_file_read_at_all_end (struct ompi_file_t *fh,
void *buf,
ompi_status_public_t *status);
int mca_io_ompio_file_write_at_all_begin (struct ompi_file_t *fh,
OMPI_MPI_OFFSET_TYPE offset,
const void *buf,
int count,
struct ompi_datatype_t *datatype);
int mca_io_ompio_file_write_at_all_end (struct ompi_file_t *fh,
const void *buf,
ompi_status_public_t *status);
int mca_io_ompio_file_read_all_begin (struct ompi_file_t *fh,
void *buf,
int count,
struct ompi_datatype_t *datatype);
int mca_io_ompio_file_read_all_end (struct ompi_file_t *fh,
void *buf,
ompi_status_public_t *status);
int mca_io_ompio_file_write_all_begin (struct ompi_file_t *fh,
const void *buf,
int count,
struct ompi_datatype_t *datatype);
int mca_io_ompio_file_write_all_end (struct ompi_file_t *fh,
const void *buf,
ompi_status_public_t *status);
int mca_io_ompio_file_read_ordered_begin (struct ompi_file_t *fh,
void *buf,
int count,
struct ompi_datatype_t *datatype);
int mca_io_ompio_file_read_ordered_end (struct ompi_file_t *fh,
void *buf,
ompi_status_public_t *status);
int mca_io_ompio_file_write_ordered_begin (struct ompi_file_t *fh,
const void *buf,
int count,
struct ompi_datatype_t *datatype);
int mca_io_ompio_file_write_ordered_end (struct ompi_file_t *fh,
const void *buf,
struct ompi_status_public_t *status);
/* Section 9.5.1 */
int mca_io_ompio_file_get_type_extent (struct ompi_file_t *fh,
struct ompi_datatype_t *datatype,
MPI_Aint *extent);
/* Section 9.6.1 */
int mca_io_ompio_file_set_atomicity (struct ompi_file_t *fh,
int flag);
int mca_io_ompio_file_get_atomicity (struct ompi_file_t *fh,
int *flag);
int mca_io_ompio_file_sync (struct ompi_file_t *fh);
/*
* ******************************************************************
* ************ functions implemented in this module end ************
* ******************************************************************
*/
END_C_DECLS
#endif /* MCA_IO_OMPIO_H */
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