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/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2006 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) 2013-2015 University of Houston. All rights reserved.
* Copyright (c) 2016-2017 IBM Corporation. All rights reserved.
* Copyright (c) 2018 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*
* These symbols are in a file by themselves to provide nice linker
* semantics. Since linkers generally pull in symbols by object fules,
* keeping these symbols as the only symbols in this file prevents
* utility programs such as "ompi_info" from having to import entire
* modules just to query their version and parameters
*/
#include "ompi_config.h"
#include "mpi.h"
#include "ompi/mca/sharedfp/sharedfp.h"
#include "ompi/mca/sharedfp/base/base.h"
#include "ompi/mca/sharedfp/individual/sharedfp_individual.h"
/*
* *******************************************************************
* ************************ actions structure ************************
* *******************************************************************
*/
/* IMPORTANT: Update here when adding sharedfp component interface functions*/
static mca_sharedfp_base_module_1_0_0_t individual = {
mca_sharedfp_individual_module_init, /* initialise after being selected */
mca_sharedfp_individual_module_finalize, /* close a module on a communicator */
mca_sharedfp_individual_seek,
mca_sharedfp_individual_get_position,
mca_sharedfp_individual_read,
mca_sharedfp_individual_read_ordered,
mca_sharedfp_individual_read_ordered_begin,
mca_sharedfp_individual_read_ordered_end,
mca_sharedfp_individual_iread,
mca_sharedfp_individual_write,
mca_sharedfp_individual_write_ordered,
mca_sharedfp_individual_write_ordered_begin,
mca_sharedfp_individual_write_ordered_end,
mca_sharedfp_individual_iwrite,
mca_sharedfp_individual_file_open,
mca_sharedfp_individual_file_close
};
/*
* *******************************************************************
* ************************* structure ends **************************
* *******************************************************************
*/
int mca_sharedfp_individual_component_init_query(bool enable_progress_threads,
bool enable_mpi_threads)
{
/* Nothing to do */
return OMPI_SUCCESS;
}
struct mca_sharedfp_base_module_1_0_0_t * mca_sharedfp_individual_component_file_query (ompio_file_t *fh, int *priority) {
int amode;
bool wronly_flag=false;
bool relaxed_order_flag=false;
opal_info_t *info;
int flag;
opal_cstring_t *info_str;
*priority = 0;
/*test, and update priority*/
/*---------------------------------------------------------*/
/* 1. Is the file write only? check amode for MPI_MODE_WRONLY */
amode = fh->f_amode;
if ( amode & MPI_MODE_WRONLY || amode & MPI_MODE_RDWR ) {
wronly_flag=true;
if ( mca_sharedfp_individual_verbose ) {
opal_output(ompi_sharedfp_base_framework.framework_output,
"mca_sharedfp_individual_component_file_query: "
"MPI_MODE_WRONLY[true=%d,false=%d]=%d\n",true,false,wronly_flag);
}
} else {
wronly_flag=false;
if ( mca_sharedfp_individual_verbose ) {
opal_output(ompi_sharedfp_base_framework.framework_output,
"mca_sharedfp_individual_component_file_query: Can not run!, "
"MPI_MODE_WRONLY[true=%d,false=%d]=%d\n",true,false,wronly_flag);
}
}
/*---------------------------------------------------------*/
/* 2. Did the user specify MPI_INFO relaxed ordering flag? */
info = fh->f_info;
if ( info != &(MPI_INFO_NULL->super) ){
opal_info_get ( info,"OMPIO_SHAREDFP_RELAXED_ORDERING", &info_str, &flag);
if ( flag ) {
if ( mca_sharedfp_individual_verbose ) {
opal_output(ompi_sharedfp_base_framework.framework_output,
"mca_sharedfp_individual_component_file_query: "
"OMPIO_SHAREDFP_RELAXED_ORDERING=%s\n", info_str->string);
}
/* flag - Returns true if key defined, false if not (boolean). */
relaxed_order_flag=true;
OBJ_RELEASE(info_str);
}
else {
if ( mca_sharedfp_individual_verbose ) {
opal_output(ompi_sharedfp_base_framework.framework_output,
"mca_sharedfp_individual_component_file_query: "
"OMPIO_SHAREDFP_RELAXED_ORDERING MPI_Info key not set. "
"Set this key in order to increase this component's priority value.\n");
}
}
}
else {
if ( mca_sharedfp_individual_verbose ) {
opal_output(ompi_sharedfp_base_framework.framework_output,
"mca_sharedfp_individual_component_file_query: "
"OMPIO_SHAREDFP_RELAXED_ORDERING MPI_Info key not set, "
"got MPI_INFO_NULL. Set this key in order to increase "
"this component's priority value.\n");
}
}
/*For now, this algorithm will not run if the file is not opened write only.
*Setting the OMPIO_SHAREDFP_RELAXED_ORDERING gives this module a higher priority
*otherwise it gets a priority of zero. This means that this module will
*run only if no other module can run
*/
if ( wronly_flag && relaxed_order_flag){
*priority=mca_sharedfp_individual_priority;
}
else {
*priority=1;
}
if ( wronly_flag ){
return &individual;
}
return NULL;
}
int mca_sharedfp_individual_component_file_unquery (ompio_file_t *file)
{
/* This function might be needed for some purposes later. for now it
* does not have anything to do since there are no steps which need
* to be undone if this module is not selected */
return OMPI_SUCCESS;
}
int mca_sharedfp_individual_module_init (ompio_file_t *file)
{
return OMPI_SUCCESS;
}
int mca_sharedfp_individual_module_finalize (ompio_file_t *file)
{
return OMPI_SUCCESS;
}
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