afa654746c
last December. :-(
Add new MCA param: maffinity_libnuma_policy. Thanks to David
Singleton for the suggestion. Here's the help text about it:
{{{
MCA maffinity: parameter "maffinity_libnuma_policy" (current value:
<loose>, data source: default value)
Binding policy that determines what happens if memory
is unavailable on the local NUMA node. A value of
"strict" means that the memory allocation will fail;
a value of "loose" means that the memory allocation
will spill over to another NUMA node.
}}}
This commit was SVN r24290.
67 строки
2.0 KiB
C
67 строки
2.0 KiB
C
/*
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* Copyright (c) 2004-2008 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2011 Cisco Systems, Inc. All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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/**
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* @file
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*
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* Processor affinity for libnuma.
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*/
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#ifndef MCA_MAFFINITY_LIBNUMA_EXPORT_H
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#define MCA_MAFFINITY_LIBNUMA_EXPORT_H
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#include "opal_config.h"
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#include "opal/mca/mca.h"
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#include "opal/mca/maffinity/maffinity.h"
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BEGIN_C_DECLS
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/* Component struct to wrap the base maffinity component and then include
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some data private to this component. */
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typedef struct {
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/* Base component */
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opal_maffinity_base_component_2_0_0_t base;
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/* What libnuma memory binding policy we're using */
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int libnuma_policy;
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} opal_maffinity_libnuma_component_2_0_0_t;
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/**
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* Globally exported variable
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*/
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OPAL_DECLSPEC extern opal_maffinity_libnuma_component_2_0_0_t
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mca_maffinity_libnuma_component;
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/**
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* maffinity query API function
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*
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* Query function for maffinity components. Simply returns a priority
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* to rank it against other available maffinity components (assumedly,
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* only one component will be available per platform, but it's
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* possible that there could be more than one available).
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*/
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int opal_maffinity_libnuma_component_query(mca_base_module_t **module, int *priority);
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END_C_DECLS
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#endif /* MCA_MAFFINITY_LIBNUMA_EXPORT_H */
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