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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2004-2010 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2021 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2007 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) 2009 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2013-2015 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2015 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* Copyright (c) 2018-2022 IBM Corporation. All rights reserved.
* Copyright (c) 2020 Intel, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <stdio.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif /* HAVE_UNIST_H */
#include "ompi/mca/mca.h"
#include "opal/util/argv.h"
#include "opal/util/output.h"
#include "opal/mca/base/base.h"
#include "ompi/constants.h"
#include "ompi/mca/pml/pml.h"
#include "ompi/mca/pml/base/base.h"
#include "ompi/mca/pml/base/pml_base_request.h"
#if MPI_VERSION >= 4
#include "ompi/mca/pml/base/pml_base_sendreq.h"
#endif
/*
* 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 "ompi/mca/pml/base/static-components.h"
int mca_pml_base_progress(void)
{
return OMPI_SUCCESS;
}
/* not #if conditional on OPAL_ENABLE_FT_MPI for ABI */
int mca_pml_base_revoke_comm(ompi_communicator_t *comm, bool coll_only)
{
return OMPI_ERR_NOT_IMPLEMENTED;
}
#define xstringify(pml) #pml
#define stringify(pml) xstringify(pml)
/*
* Global variables
*/
mca_pml_base_module_t mca_pml = {
NULL, /* pml_add_procs */
NULL, /* pml_del_procs */
NULL, /* pml_enable */
mca_pml_base_progress, /* pml_progress */
NULL, /* pml_add_comm */
NULL, /* pml_del_comm */
mca_pml_base_revoke_comm,/* pml_revoke_comm */
NULL, /* pml_irecv_init */
NULL, /* pml_irecv */
NULL, /* pml_recv */
NULL, /* pml_isend_init */
NULL, /* pml_isend */
NULL, /* pml_send */
NULL, /* pml_iprobe */
NULL, /* pml_probe */
NULL, /* pml_start */
NULL, /* pml_dump */
0, /* pml_max_contextid */
0, /* pml_max_tag */
0, /* pml_flags */
NULL /* pml_get_transports */
};
mca_pml_base_component_t mca_pml_base_selected_component = {{0}};
opal_pointer_array_t mca_pml_base_pml = {{0}};
char *ompi_pml_base_bsend_allocator_name = NULL;
bool ompi_pml_base_check_pml = true;
#if !MCA_ompi_pml_DIRECT_CALL
static char *ompi_pml_base_wrapper = NULL;
#endif
#if MPI_VERSION >= 4
#define OMPI_PML_BASE_WARN_DEP_CANCEL_SEND_DEFAULT OMPI_PML_BASE_WARN_DEP_CANCEL_SEND_ONCE
int ompi_pml_base_warn_dep_cancel_send_level = OMPI_PML_BASE_WARN_DEP_CANCEL_SEND_DEFAULT;
mca_base_var_enum_value_t ompi_pml_base_warn_dep_cancel_send_values[] = {
{.value = OMPI_PML_BASE_WARN_DEP_CANCEL_SEND_ALWAYS, .string = "always"},
{.value = OMPI_PML_BASE_WARN_DEP_CANCEL_SEND_ONCE, .string = "once"},
{.value = OMPI_PML_BASE_WARN_DEP_CANCEL_SEND_NEVER, .string = "never"},
{0, NULL}
};
#endif
static int mca_pml_base_register(mca_base_register_flag_t flags)
{
#if !MCA_ompi_pml_DIRECT_CALL
int var_id;
#endif
#if MPI_VERSION >= 4
mca_base_var_enum_t *ompi_pml_base_warn_dep_cancel_send_enum = NULL;
int rc;
#endif
ompi_pml_base_bsend_allocator_name = "basic";
(void) mca_base_var_register("ompi", "pml", "base", "bsend_allocator", NULL,
MCA_BASE_VAR_TYPE_STRING, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&ompi_pml_base_bsend_allocator_name);
#if !MCA_ompi_pml_DIRECT_CALL
ompi_pml_base_wrapper = NULL;
var_id = mca_base_var_register("ompi", "pml", "base", "wrapper",
"Use a Wrapper component around the selected PML component",
MCA_BASE_VAR_TYPE_STRING, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&ompi_pml_base_wrapper);
(void) mca_base_var_register_synonym(var_id, "ompi", "pml", NULL, "wrapper", 0);
#endif
#if MPI_VERSION >= 4
mca_base_var_enum_create("pml_base_deprecate_warnings", ompi_pml_base_warn_dep_cancel_send_values,
&ompi_pml_base_warn_dep_cancel_send_enum);
rc = mca_base_var_register("ompi", "pml", "base", "warn_dep_cancel_send",
"How often to issue warnings for deprecated cancelation of send requests",
MCA_BASE_VAR_TYPE_INT, ompi_pml_base_warn_dep_cancel_send_enum, 0, 0,
OPAL_INFO_LVL_9, MCA_BASE_VAR_SCOPE_READONLY,
&ompi_pml_base_warn_dep_cancel_send_level);
OBJ_RELEASE(ompi_pml_base_warn_dep_cancel_send_enum);
if (OPAL_ERR_VALUE_OUT_OF_BOUNDS == rc) {
ompi_pml_base_warn_dep_cancel_send_level = OMPI_PML_BASE_WARN_DEP_CANCEL_SEND_DEFAULT;
opal_output(0, "pml:base:register: Warning invalid deprecation warning value specified. Using default: %d",
ompi_pml_base_warn_dep_cancel_send_level);
}
#endif
ompi_pml_base_check_pml = true;
(void) mca_base_var_register("ompi", "pml", "base", "check_pml",
"Whether to check the pml selections to ensure they all match",
MCA_BASE_VAR_TYPE_BOOL, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&ompi_pml_base_check_pml);
return OMPI_SUCCESS;
}
static int mca_pml_base_close(void)
{
int i, j;
/* turn off the progress code for the pml */
if( NULL != mca_pml.pml_progress ) {
opal_progress_unregister(mca_pml.pml_progress);
}
/* Blatantly ignore the return code (what would we do to recover,
anyway? This module is going away, so errors don't matter
anymore) */
/**
* 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 PML close function.
*/
OBJ_DESTRUCT(&mca_pml_base_send_requests);
OBJ_DESTRUCT(&mca_pml_base_recv_requests);
mca_pml.pml_progress = mca_pml_base_progress;
/* Free all the strings in the array */
j = opal_pointer_array_get_size(&mca_pml_base_pml);
for (i = 0; i < j; ++i) {
char *str;
str = (char*) opal_pointer_array_get_item(&mca_pml_base_pml, i);
free(str);
}
OBJ_DESTRUCT(&mca_pml_base_pml);
/* Close all remaining available components */
return mca_base_framework_components_close(&ompi_pml_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_pml_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_pml_base_send_requests, opal_free_list_t);
OBJ_CONSTRUCT(&mca_pml_base_recv_requests, opal_free_list_t);
OBJ_CONSTRUCT(&mca_pml_base_pml, opal_pointer_array_t);
/* Open up all available components */
if (OPAL_SUCCESS !=
mca_base_framework_components_open(&ompi_pml_base_framework, flags)) {
return OMPI_ERROR;
}
/* Set a sentinel in case we don't select any components (e.g.,
ompi_info) */
mca_pml_base_selected_component.pmlm_finalize = NULL;
/**
* Right now our selection of BTLs is completely broken. If we have
* multiple PMLs 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 PML that
* uses BTLs and any other PMLs that do not in the mca_pml_base_pml array.
*/
#if MCA_ompi_pml_DIRECT_CALL
opal_pointer_array_add(&mca_pml_base_pml,
strdup(stringify(MCA_ompi_pml_DIRECT_CALL_COMPONENT)));
#else
{
const char **default_pml = NULL;
int var_id;
var_id = mca_base_var_find("ompi", "pml", NULL, NULL);
mca_base_var_get_value(var_id, &default_pml, NULL, NULL);
if( (NULL == default_pml || NULL == default_pml[0] ||
0 == strlen(default_pml[0])) || (default_pml[0][0] == '^') ) {
opal_pointer_array_add(&mca_pml_base_pml, strdup("ob1"));
opal_pointer_array_add(&mca_pml_base_pml, strdup("ucx"));
opal_pointer_array_add(&mca_pml_base_pml, strdup("cm"));
} else {
#if OPAL_ENABLE_DEBUG
char **req_pml = opal_argv_split(default_pml[0], ',');
if( NULL != req_pml[1] ) {
opal_output(0, "Only one PML must be provided. Using %s PML (the"
" first on the MCA pml list)", req_pml[0]);
opal_pointer_array_add(&mca_pml_base_pml, strdup(req_pml[0]));
} else {
opal_pointer_array_add(&mca_pml_base_pml, strdup(default_pml[0]));
}
opal_argv_free(req_pml);
#else
opal_pointer_array_add(&mca_pml_base_pml, strdup(default_pml[0]));
#endif /* OPAL_ENABLE_DEBUG */
}
}
#endif
return OMPI_SUCCESS;
}
MCA_BASE_FRAMEWORK_DECLARE(ompi, pml, "OMPI PML", mca_pml_base_register,
mca_pml_base_open, mca_pml_base_close,
mca_pml_base_static_components, 0);
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