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openmpi/opal/mca/maffinity/base/maffinity_base_open.c
Jeff Squyres 9db4542c2b Move maffinity_base_alloc_policy and
maffinity_base_bind_failure_action MCA params to the hwloc base
(hwloc_base_alloc_polocy and hwloc_base_bind_failure_action).  Since
these MCA parameters were never on a release branch, I'm just
moving/renaming them outright and not leaving aliases to the old
names.

Note that some upper layer needs to call
opal_hwloc_base_set_process_membind_policy() to set the
set-by-MCA-param process-wide memory affinity policy.  We can't do
this automatically during hwloc_base_open() because, for reasons
described elsewhere, opal_hwloc_topology is not automatically filled
during hwloc_base_open() (in short: potential scalability issues when
launching many MPI processes simultaneously on a single machine, for
example).

This commit was SVN r25156.
2011-09-19 16:10:37 +00:00

94 строки
2.7 KiB
C

/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2005 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) 2011 Cisco Systems, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "opal_config.h"
#include <string.h>
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include "opal/constants.h"
#include "opal/util/output.h"
#include "opal/util/show_help.h"
#include "opal/mca/mca.h"
#include "opal/mca/base/base.h"
#include "opal/mca/base/mca_base_param.h"
#include "opal/mca/maffinity/maffinity.h"
#include "opal/mca/maffinity/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 "opal/mca/maffinity/base/static-components.h"
/*
* Globals
*/
int opal_maffinity_base_output = -1;
bool opal_maffinity_base_components_opened_valid = false;
opal_list_t opal_maffinity_base_components_opened;
bool opal_maffinity_setup = false;
/*
* Function for finding and opening either all MCA components, or the one
* that was specifically requested via a MCA parameter.
*/
int opal_maffinity_base_open(void)
{
int int_value;
/* Debugging / verbose output */
mca_base_param_reg_int_name("maffinity", "base_verbose",
"Verbosity level of the maffinity framework",
false, false,
0, &int_value);
if (0 != int_value) {
opal_maffinity_base_output = opal_output_open(NULL);
} else {
opal_maffinity_base_output = -1;
}
opal_maffinity_base_components_opened_valid = false;
/* Open up all available components */
if (OPAL_SUCCESS !=
mca_base_components_open("maffinity", opal_maffinity_base_output,
mca_maffinity_base_static_components,
&opal_maffinity_base_components_opened,
true)) {
return OPAL_ERROR;
}
opal_maffinity_base_components_opened_valid = true;
/* All done */
return OPAL_SUCCESS;
}