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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2013 Mellanox Technologies, Inc.
* All rights reserved.
* Copyright (c) 2015 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2015 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "oshmem_config.h"
#include <stdio.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif /* HAVE_UNIST_H */
#include "oshmem/mca/mca.h"
#include "opal/util/output.h"
#include "opal/mca/base/base.h"
#include "oshmem/constants.h"
#include "oshmem/util/oshmem_util.h"
#include "oshmem/mca/spml/spml.h"
#include "oshmem/mca/spml/base/base.h"
#include "oshmem/mca/spml/base/spml_base_request.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 "oshmem/mca/spml/base/static-components.h"
#define xstringify(spml) #spml
#define stringify(spml) xstringify(spml)
/*
* Global variables
*/
mca_spml_base_module_t mca_spml = {0};
mca_spml_base_component_t mca_spml_base_selected_component = {{0}};
opal_pointer_array_t mca_spml_base_spml = {{0}};
static int mca_spml_base_register(mca_base_register_flag_t flags)
{
return OMPI_SUCCESS;
}
int mca_spml_base_finalize(void)
{
if (NULL != mca_spml_base_selected_component.spmlm_finalize) {
return mca_spml_base_selected_component.spmlm_finalize();
}
return OSHMEM_SUCCESS;
}
static int mca_spml_base_close(void)
{
int i, j;
/**
* Destruct the send and receive queues. The opal_free_list_t destructor
* will return the memory to the mpool, so this has to be done before the
* mpool get released by the SPML close function.
*/
OBJ_DESTRUCT(&mca_spml_base_put_requests);
OBJ_DESTRUCT(&mca_spml_base_get_requests);
/* Free all the strings in the array */
j = opal_pointer_array_get_size(&mca_spml_base_spml);
for (i = 0; i < j; i++) {
char * tmp_val;
tmp_val = (char *) opal_pointer_array_get_item(&mca_spml_base_spml, i);
if (NULL == tmp_val) {
continue;
}
free(tmp_val);
}
OBJ_DESTRUCT(&mca_spml_base_spml);
/* Close all remaining available components */
return mca_base_framework_components_close(&oshmem_spml_base_framework, NULL);
}
/**
* Function for finding and opening either all MCA components, or the one
* that was specifically requested via a MCA parameter.
*/
static int mca_spml_base_open(mca_base_open_flag_t flags)
{
/**
* Construct the send and receive request queues. There are 2 reasons to do it
* here. First, as they are globals it's better to construct them in one common
* place. Second, in order to be able to allow the external debuggers to show
* their content, they should get constructed as soon as possible once the MPI
* process is started.
*/
OBJ_CONSTRUCT(&mca_spml_base_put_requests, opal_free_list_t);
OBJ_CONSTRUCT(&mca_spml_base_get_requests, opal_free_list_t);
OBJ_CONSTRUCT(&mca_spml_base_spml, opal_pointer_array_t);
oshmem_framework_open_output(&oshmem_spml_base_framework);
/* Open up all available components */
if (OPAL_SUCCESS !=
mca_base_framework_components_open(&oshmem_spml_base_framework, flags)) {
return OSHMEM_ERROR;
}
/* Set a sentinel in case we don't select any components (e.g.,
ompi_info) */
mca_spml_base_selected_component.spmlm_finalize = NULL;
/**
* Right now our selection of BTLs is completely broken. If we have
* multiple SPMLs that use BTLs than we will open all BTLs several times, leading to
* undefined behaviors. The simplest solution, at least until we
* figure out the correct way to do it, is to force a default SPML that
* uses BTLs and any other SPMLs that do not in the mca_spml_base_spml array.
*/
#if MCA_ompi_pml_DIRECT_CALL
opal_pointer_array_add(&mca_spml_base_spml,
strdup(stringify(MCA_oshmem_spml_DIRECT_CALL_COMPONENT)));
#else
{
const char **default_spml = NULL;
int var_id;
var_id = mca_base_var_find("oshmem", "spml", NULL, NULL);
mca_base_var_get_value(var_id, &default_spml, NULL, NULL);
if( (NULL == default_spml || NULL == default_spml[0] ||
0 == strlen(default_spml[0])) || (default_spml[0][0] == '^') ) {
opal_pointer_array_add(&mca_spml_base_spml, strdup("ikrit"));
opal_pointer_array_add(&mca_spml_base_spml, strdup("ucx"));
} else {
opal_pointer_array_add(&mca_spml_base_spml, strdup(default_spml[0]));
}
}
#endif
return OSHMEM_SUCCESS;
}
MCA_BASE_FRAMEWORK_DECLARE(oshmem, spml,
"OSHMEM SPML",
mca_spml_base_register,
mca_spml_base_open,
mca_spml_base_close,
mca_spml_base_static_components,
MCA_BASE_FRAMEWORK_FLAG_DEFAULT);
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