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openmpi/ompi/mca/osc/base/osc_base_open.c
Brian Barrett b1d2424013 Merge in present work on the MPI-2 onesided chapter. The current code is not
complete, but stable enough that it will have no impact on general development,
so into the trunk it goes.  Changes in this commit include:

 - Remove the --with option for disabling MPI-2 onesided support.  It
   complicated code, and has no real reason for existing
 - add a framework osc (OneSided Communication) for encapsulating
   all the MPI-2 onesided functionality
 - Modify the MPI interface functions for the MPI-2 onesided chapter
   to properly call the underlying framework and do the required
   error checking
 - Created an osc component pt2pt, which is layered over the BML/BTL
   for communication (although it also uses the PML for long message
   transfers).  Currently, all support functions, all communication
   functions (Put, Get, Accumulate), and the Fence synchronization
   function are implemented.  The PWSC active synchronization
   functions and Lock/Unlock passive synchronization functions are
   still not implemented

This commit was SVN r8836.
2006-01-28 15:38:37 +00:00

99 строки
3.0 KiB
C

/*
* Copyright (c) 2004-2005 The Trustees of Indiana University.
* All rights reserved.
* Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
* 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.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "include/constants.h"
#include "mca/mca.h"
#include "mca/base/base.h"
#include "mca/base/mca_base_param.h"
#include "mca/osc/osc.h"
#include "mca/osc/base/base.h"
/*
* The following file was created by configure. It contains extern
* statements and the definition of an array of pointers to each
* component's public mca_base_component_t struct.
*/
#include "mca/osc/base/static-components.h"
opal_list_t ompi_osc_base_open_components;
opal_list_t ompi_osc_base_avail_components;
/**
* Function for finding and opening either all MCA components, or the one
* that was specifically requested via a MCA parameter.
*/
int
ompi_osc_base_open(void)
{
int ret;
/* initialize the base code */
OBJ_CONSTRUCT(&ompi_osc_base_open_components, opal_list_t);
OBJ_CONSTRUCT(&ompi_osc_base_avail_components, opal_list_t);
/* Open up all available components */
if (OMPI_SUCCESS !=
(ret = mca_base_components_open("osc", 0,
mca_osc_base_static_components,
&ompi_osc_base_open_components, true))) {
return ret;
}
/* All done */
return OMPI_SUCCESS;
}
int
ompi_osc_base_find_available(bool enable_progress_threads,
bool enable_mpi_threads)
{
opal_list_item_t *component_item, *tmp;
for (component_item = opal_list_get_first(&ompi_osc_base_open_components) ;
component_item != opal_list_get_end(&ompi_osc_base_open_components) ;
component_item = opal_list_get_next(component_item)) {
int ret;
ompi_osc_base_component_t *component = (ompi_osc_base_component_t*)
((mca_base_component_list_item_t*) component_item)->cli_component;
/* see if this component is ready to run... */
ret = component->osc_init(enable_progress_threads, enable_mpi_threads);
if (OMPI_SUCCESS != ret) {
/* leave the component in the list and move on */
continue;
} else {
/* the component is useable on this node. put it in the
available list */
tmp = component_item;
component_item = opal_list_remove_item(&ompi_osc_base_open_components,
component_item);
opal_list_append(&ompi_osc_base_avail_components, tmp);
}
}
mca_base_components_close(0, &ompi_osc_base_open_components, NULL);
return OMPI_SUCCESS;
}