1
1
openmpi/opal/mca/hwloc/hwloc.h
Ralph Castain a3060cdd15 Fix the bind_downward code - it was incorrectly looking across the entire node instead of only looking below the locale to which the proc had been assigned. In other words, if the proc was mapped to a core, then the only hwthreads that should be considered for binding are those directly below that core. The binding algo was incorrectly looking at ALL hwthreads in that scenario, causing the proc to be bound to an HT outside of the mapped location.
This now results in the procs being bound within their assigned location. It also causes us to use only the 0th HT on a core unless --use-hwthread-cpus has been specified (in which case, we use all the HTs in a core). Bind to core binds you to all HTs regardless - the --use-hwthread-cpus only impacts the oversubscribed determination and when binding to HT.

cmr:v1.7

This commit was SVN r27342.
2012-09-14 22:01:19 +00:00

225 строки
6.5 KiB
C

/*
* Copyright (c) 2011-2012 Cisco Systems, Inc. All rights reserved.
*
* $COPYRIGHT$
*
* Additional copyrights may follow
*/
#ifndef OPAL_MCA_HWLOC_H
#define OPAL_MCA_HWLOC_H
#include "opal_config.h"
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif
#ifdef HAVE_STDARG_H
#include <stdarg.h>
#endif
#include "opal/class/opal_list.h"
#include "opal/class/opal_value_array.h"
#include "opal/mca/mca.h"
#include "opal/mca/base/base.h"
BEGIN_C_DECLS
#ifdef WIN32
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#undef WIN32_LEAN_AND_MEAN
typedef unsigned char u_char;
typedef unsigned short u_short;
#endif
/**
* Structure for hwloc components.
*/
struct opal_hwloc_base_component_2_0_0_t {
/** MCA base component */
mca_base_component_t base_version;
/** MCA base data */
mca_base_component_data_t base_data;
};
/**
* Convenience typedef
*/
typedef struct opal_hwloc_base_component_2_0_0_t opal_hwloc_base_component_2_0_0_t;
typedef struct opal_hwloc_base_component_2_0_0_t opal_hwloc_component_t;
/**
* Macro for use in components that are of type hwloc
*/
#define OPAL_HWLOC_BASE_VERSION_2_0_0 \
MCA_BASE_VERSION_2_0_0, \
"hwloc", 2, 0, 0
/* Define a hierarchical level value that
* helps resolve the hwloc behavior of
* treating caches as a single type of
* entity - must always be available
*/
typedef enum {
OPAL_HWLOC_NODE_LEVEL=0,
OPAL_HWLOC_NUMA_LEVEL,
OPAL_HWLOC_SOCKET_LEVEL,
OPAL_HWLOC_L3CACHE_LEVEL,
OPAL_HWLOC_L2CACHE_LEVEL,
OPAL_HWLOC_L1CACHE_LEVEL,
OPAL_HWLOC_CORE_LEVEL,
OPAL_HWLOC_HWTHREAD_LEVEL
} opal_hwloc_level_t;
#define OPAL_HWLOC_LEVEL_T OPAL_INT
/* include implementation to call */
#if OPAL_HAVE_HWLOC
#include MCA_hwloc_IMPLEMENTATION_HEADER
/**
* Struct used to describe a section of memory (starting address
* and length). This is really the same thing as an iovec, but
* we include a separate type for it for at least 2 reasons:
*
* 1. Some OS's iovec definitions are exceedingly lame (e.g.,
* Solaris 9 has the length argument as an int, instead of a
* size_t).
*
* 2. We reserve the right to expand/change this struct in the
* future.
*/
typedef struct {
/** Starting address of segment */
void *mbs_start_addr;
/** Length of segment */
size_t mbs_len;
} opal_hwloc_base_memory_segment_t;
/* define type of processor info requested */
typedef uint8_t opal_hwloc_resource_type_t;
#define OPAL_HWLOC_PHYSICAL 1
#define OPAL_HWLOC_LOGICAL 2
#define OPAL_HWLOC_AVAILABLE 3
/* structs for storing info on objects */
typedef struct {
opal_object_t super;
hwloc_cpuset_t available;
unsigned int npus;
unsigned int idx;
unsigned int num_bound;
} opal_hwloc_obj_data_t;
OBJ_CLASS_DECLARATION(opal_hwloc_obj_data_t);
typedef struct {
opal_list_item_t super;
hwloc_obj_type_t type;
unsigned cache_level;
unsigned int num_objs;
opal_hwloc_resource_type_t rtype;
} opal_hwloc_summary_t;
OBJ_CLASS_DECLARATION(opal_hwloc_summary_t);
typedef struct {
opal_object_t super;
hwloc_cpuset_t available;
opal_list_t summaries;
/** \brief Additional space for custom data */
void *userdata;
} opal_hwloc_topo_data_t;
OPAL_DECLSPEC OBJ_CLASS_DECLARATION(opal_hwloc_topo_data_t);
/* define binding policies */
typedef uint16_t opal_binding_policy_t;
#define OPAL_BINDING_POLICY OPAL_UINT16
/* binding directives */
#define OPAL_BIND_IF_SUPPORTED 0x1000
#define OPAL_BIND_ALLOW_OVERLOAD 0x2000
#define OPAL_BIND_GIVEN 0x4000
/* binding policies */
#define OPAL_BIND_TO_NONE 1
#define OPAL_BIND_TO_BOARD 2
#define OPAL_BIND_TO_NUMA 3
#define OPAL_BIND_TO_SOCKET 4
#define OPAL_BIND_TO_L3CACHE 5
#define OPAL_BIND_TO_L2CACHE 6
#define OPAL_BIND_TO_L1CACHE 7
#define OPAL_BIND_TO_CORE 8
#define OPAL_BIND_TO_HWTHREAD 9
#define OPAL_BIND_TO_CPUSET 10
#define OPAL_GET_BINDING_POLICY(pol) \
((pol) & 0x0fff)
#define OPAL_SET_BINDING_POLICY(target, pol) \
(target) = (pol) | ((target) & 0xf000)
/* check if policy is set */
#define OPAL_BINDING_POLICY_IS_SET(pol) \
((pol) & 0x4000)
/* macro to detect if binding was qualified */
#define OPAL_BINDING_REQUIRED(n) \
(!(OPAL_BIND_IF_SUPPORTED & (n)))
/* macro to detect if binding is forced */
#define OPAL_BIND_OVERLOAD_ALLOWED(n) \
(OPAL_BIND_ALLOW_OVERLOAD & (n))
/* ******************************************************************** */
typedef uint16_t opal_hwloc_locality_t;
#define OPAL_HWLOC_LOCALITY_T OPAL_UINT16
/** Process locality definitions */
enum {
OPAL_PROC_LOCALITY_UNKNOWN = 0x0000,
OPAL_PROC_NON_LOCAL = 0x8000,
OPAL_PROC_ON_CLUSTER = 0x0400,
OPAL_PROC_ON_CU = 0x0200,
OPAL_PROC_ON_NODE = 0x0100,
OPAL_PROC_ON_BOARD = 0x0080,
OPAL_PROC_ON_NUMA = 0x0040,
OPAL_PROC_ON_SOCKET = 0x0020,
OPAL_PROC_ON_L3CACHE = 0x0010,
OPAL_PROC_ON_L2CACHE = 0x0008,
OPAL_PROC_ON_L1CACHE = 0x0004,
OPAL_PROC_ON_CORE = 0x0002,
OPAL_PROC_ON_HWTHREAD = 0x0001,
OPAL_PROC_ALL_LOCAL = 0x0fff
};
/** Process locality macros */
#define OPAL_PROC_ON_LOCAL_HWTHREAD(n) ((n) & OPAL_PROC_ON_HWTHREAD)
#define OPAL_PROC_ON_LOCAL_CORE(n) ((n) & OPAL_PROC_ON_CORE)
#define OPAL_PROC_ON_LOCAL_L1CACHE(n) ((n) & OPAL_PROC_ON_L1CACHE)
#define OPAL_PROC_ON_LOCAL_L2CACHE(n) ((n) & OPAL_PROC_ON_L2CACHE)
#define OPAL_PROC_ON_LOCAL_L3CACHE(n) ((n) & OPAL_PROC_ON_L3CACHE)
#define OPAL_PROC_ON_LOCAL_SOCKET(n) ((n) & OPAL_PROC_ON_SOCKET)
#define OPAL_PROC_ON_LOCAL_NUMA(n) ((n) & OPAL_PROC_ON_NUMA)
#define OPAL_PROC_ON_LOCAL_BOARD(n) ((n) & OPAL_PROC_ON_BOARD)
#define OPAL_PROC_ON_LOCAL_NODE(n) ((n) & OPAL_PROC_ON_NODE)
#define OPAL_PROC_ON_LOCAL_CU(n) ((n) & OPAL_PROC_ON_CU)
#define OPAL_PROC_ON_LOCAL_CLUSTER(n) ((n) & OPAL_PROC_ON_CLUSTER)
/* ******************************************************************** */
/* some global values */
OPAL_DECLSPEC extern hwloc_topology_t opal_hwloc_topology;
OPAL_DECLSPEC extern opal_binding_policy_t opal_hwloc_binding_policy;
OPAL_DECLSPEC extern hwloc_cpuset_t opal_hwloc_my_cpuset;
OPAL_DECLSPEC extern bool opal_hwloc_report_bindings;
OPAL_DECLSPEC extern hwloc_obj_type_t opal_hwloc_levels[];
OPAL_DECLSPEC extern bool opal_hwloc_use_hwthreads_as_cpus;
#endif
END_C_DECLS
#endif /* OPAL_HWLOC_H_ */