b44f8d4b28
Use hwloc to obtain the cpuset for each process during mpi_init, and share that info in the modex. As it arrives, use a new opal_hwloc_base utility function to parse the value against the local proc's cpuset and determine where they overlap. Cache the value in the pmap object as it may be referenced multiple times. Thus, the return value from orte_ess.proc_get_locality is a 16-bit bitmask that describes the resources being shared with you. This bitmask can be tested using the macros in opal/mca/paffinity/paffinity.h Locality is available for all procs, whether launched via mpirun or directly with an external launcher such as slurm or aprun. This commit was SVN r25331.
75 строки
1.4 KiB
C
75 строки
1.4 KiB
C
/*
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* Copyright (c) 2011 Cisco Systems, Inc. All rights reserved.
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*
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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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#ifndef OPAL_MCA_HWLOC_H
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#define OPAL_MCA_HWLOC_H
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#include "opal_config.h"
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#ifdef HAVE_SYS_TIME_H
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#include <sys/time.h>
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#endif
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#ifdef HAVE_STDINT_H
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#include <stdint.h>
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#endif
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#ifdef HAVE_STDARG_H
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#include <stdarg.h>
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#endif
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#include "opal/mca/mca.h"
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#include "opal/mca/base/base.h"
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BEGIN_C_DECLS
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#ifdef WIN32
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#undef WIN32_LEAN_AND_MEAN
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typedef unsigned char u_char;
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typedef unsigned short u_short;
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#endif
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/**
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* Structure for hwloc components.
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*/
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struct opal_hwloc_base_component_2_0_0_t {
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/** MCA base component */
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mca_base_component_t base_version;
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/** MCA base data */
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mca_base_component_data_t base_data;
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};
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/**
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* Convenience typedef
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*/
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typedef struct opal_hwloc_base_component_2_0_0_t opal_hwloc_base_component_2_0_0_t;
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typedef struct opal_hwloc_base_component_2_0_0_t opal_hwloc_component_t;
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/**
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* Macro for use in components that are of type hwloc
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*/
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#define OPAL_HWLOC_BASE_VERSION_2_0_0 \
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MCA_BASE_VERSION_2_0_0, \
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"hwloc", 2, 0, 0
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END_C_DECLS
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/* include implementation to call */
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#if OPAL_HAVE_HWLOC
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#include MCA_hwloc_IMPLEMENTATION_HEADER
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OPAL_DECLSPEC extern hwloc_topology_t opal_hwloc_topology;
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OPAL_DECLSPEC extern hwloc_cpuset_t opal_hwloc_my_cpuset;
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#endif
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#endif /* OPAL_HWLOC_H_ */
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