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openmpi/opal/mca/hwloc/hwloc-internal.h
Brian Barrett 0e9581d478 build: Move hwloc to a 3rd-party package
With Open MPI 5.0, the decision was made to stop building
3rd-party packages, such as Libevent, HWLOC, PMIx, and PRRTE as
MCA components and instead 1) start relying on external libraries
whenever possible and 2) Open MPI builds the 3rd party
libraries (if needed) as independent libraries, rather than
linked into libopen-pal.

This patch moves the hwloc library bundled with Open MPI from a
MCA framework to a stand-alone library built outside of OPAL.  Due
to the amount of code in the MCA base (and its assumptions about
being part of an MCA framework), the framework is left with no
active components.  Any pre-installed version of HWLOC 1.6 or
newer is preferred over the internal version.

Signed-off-by: Brian Barrett <bbarrett@amazon.com>
2020-10-01 16:55:59 +00:00

255 строки
8.5 KiB
C

/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2011-2012 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2013-2018 Intel, Inc. All rights reserved.
* Copyright (c) 2015 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2020 Amazon.com, Inc. or its affiliates.
* All Rights reserved.
*
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* In days of old, hwloc was packaged as multiple MCA components, and
* grew an extensive set of base code to support Open MPI's use of
* hwloc. When internal builds of libevent, hwloc, and hwloc were
* moved out of components into base code so that they could be shared
* between Open MPI and PRRTE without incurring linking hell, we left
* the base code active. This MCA framework is essentially defunct;
* its only purpose is to allow continued use of the base code.
*/
#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
#include <stdint.h>
#include <stdarg.h>
#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 \
OPAL_MCA_BASE_VERSION_2_1_0("hwloc", 2, 0, 0)
/* ******************************************************************** */
/* Although we cannot bind if --without-hwloc is set,
* we do still need to know some basic locality data
* like on_node and not_on_node. So ensure that we
* always have access to that much info by including
* the definitions here, outside the if-have-hwloc test
*/
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 = 0x0001,
OPAL_PROC_ON_CU = 0x0002,
OPAL_PROC_ON_HOST = 0x0004,
OPAL_PROC_ON_BOARD = 0x0008,
OPAL_PROC_ON_NODE = 0x000c, // same host and board
OPAL_PROC_ON_NUMA = 0x0010,
OPAL_PROC_ON_SOCKET = 0x0020,
OPAL_PROC_ON_L3CACHE = 0x0040,
OPAL_PROC_ON_L2CACHE = 0x0080,
OPAL_PROC_ON_L1CACHE = 0x0100,
OPAL_PROC_ON_CORE = 0x0200,
OPAL_PROC_ON_HWTHREAD = 0x0400,
OPAL_PROC_ALL_LOCAL = 0x0fff,
};
/** Process locality macros */
#define OPAL_PROC_ON_LOCAL_CLUSTER(n) (!!((n) & OPAL_PROC_ON_CLUSTER))
#define OPAL_PROC_ON_LOCAL_CU(n) (!!((n) & OPAL_PROC_ON_CU))
#define OPAL_PROC_ON_LOCAL_HOST(n) (!!((n) & OPAL_PROC_ON_HOST))
#define OPAL_PROC_ON_LOCAL_BOARD(n) (!!((n) & OPAL_PROC_ON_BOARD))
#define OPAL_PROC_ON_LOCAL_NODE(n) (OPAL_PROC_ON_LOCAL_HOST(n) && OPAL_PROC_ON_LOCAL_BOARD(n))
#define OPAL_PROC_ON_LOCAL_NUMA(n) (!!((n) & OPAL_PROC_ON_NUMA))
#define OPAL_PROC_ON_LOCAL_SOCKET(n) (!!((n) & OPAL_PROC_ON_SOCKET))
#define OPAL_PROC_ON_LOCAL_L3CACHE(n) (!!((n) & OPAL_PROC_ON_L3CACHE))
#define OPAL_PROC_ON_LOCAL_L2CACHE(n) (!!((n) & OPAL_PROC_ON_L2CACHE))
#define OPAL_PROC_ON_LOCAL_L1CACHE(n) (!!((n) & OPAL_PROC_ON_L1CACHE))
#define OPAL_PROC_ON_LOCAL_CORE(n) (!!((n) & OPAL_PROC_ON_CORE))
#define OPAL_PROC_ON_LOCAL_HWTHREAD(n) (!!((n) & OPAL_PROC_ON_HWTHREAD))
/* ******************************************************************** */
/**
* 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;
/* include implementation to call */
#include <hwloc.h>
#if defined(OPAL_HWLOC_WANT_SHMEM) && OPAL_HWLOC_WANT_SHMEM
# if HWLOC_API_VERSION >= 0x20000
# include <hwloc/shmem.h>
# endif
/* Do nothing in the 1.x case because the caller doesn't know HWLOC_API_VERSION when it sets OPAL_HWLOC_WANT_SHMEM.
* Calls to hwloc/shmem.h are protected by HWLOC_API_VERSION >= 0x20000 in the actual code.
*/
#endif
#if HWLOC_API_VERSION < 0x00010b00
#define HWLOC_OBJ_NUMANODE HWLOC_OBJ_NODE
#define HWLOC_OBJ_PACKAGE HWLOC_OBJ_SOCKET
#endif
/* 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;
bool npus_calculated;
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_list_t sorted_by_dist_list;
} 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
/* allow assignment of multiple procs to
* same cpu */
#define OPAL_BIND_ALLOW_OVERLOAD 0x2000
/* the binding policy was specified by the user */
#define OPAL_BIND_GIVEN 0x4000
/* bind each rank to the cpu in the given
* cpu list based on its node-local-rank */
#define OPAL_BIND_ORDERED 0x8000
/* binding policies - any changes in these
* values must be reflected in orte/mca/rmaps/rmaps.h
*/
#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) | OPAL_BIND_GIVEN)
#define OPAL_SET_DEFAULT_BINDING_POLICY(target, pol) \
do { \
if (!OPAL_BINDING_POLICY_IS_SET((target))) { \
(target) = (pol) | (((target) & 0xf000) | \
OPAL_BIND_IF_SUPPORTED); \
} \
} while(0);
/* 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))
#define OPAL_BIND_ORDERED_REQUESTED(n) \
(OPAL_BIND_ORDERED & (n))
/* 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;
END_C_DECLS
#endif /* OPAL_HWLOC_H_ */