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gcc/libgomp/omp.h.in
Tobias Burnus bf4a5efa80 OpenMP: Add get_device_from_uid/omp_get_uid_from_device routines 
Those TR13/OpenMP 6.0 routines permit a reproducible offloading to
a specific device by mapping an OpenMP device number to a
unique ID (UID). The GPU device UIDs should be universally unique,
the one for the host is not.

gcc/ChangeLog:

	* omp-general.cc (omp_runtime_api_procname): Add
	get_device_from_uid and omp_get_uid_from_device routines.

include/ChangeLog:

	* cuda/cuda.h (cuDeviceGetUuid): Declare.
	(cuDeviceGetUuid_v2): Add prototype.

libgomp/ChangeLog:

	* config/gcn/target.c (omp_get_uid_from_device,
	omp_get_device_from_uid): Add stub implementation.
	* config/nvptx/target.c (omp_get_uid_from_device,
	omp_get_device_from_uid): Likewise.
	* fortran.c (omp_get_uid_from_device_,
	omp_get_uid_from_device_8_): New functions.
	* libgomp-plugin.h (GOMP_OFFLOAD_get_uid): Add prototype.
	* libgomp.h (struct gomp_device_descr): Add 'uid' and 'get_uid_func'.
	* libgomp.map (GOMP_6.0): New, includind the new UID routines.
	* libgomp.texi (OpenMP Technical Report 13): Mark UID routines as 'Y'.
	(Device Information Routines): Document new UID routines.
	(Offload-Target Specifics): Document UID format.
	* omp.h.in (omp_get_device_from_uid, omp_get_uid_from_device):
	New prototype.
	* omp_lib.f90.in (omp_get_device_from_uid, omp_get_uid_from_device):
	New interface.
	* omp_lib.h.in: Likewise.
	* plugin/cuda-lib.def: Add cuDeviceGetUuid and cuDeviceGetUuid_v2 via
	CUDA_ONE_CALL_MAYBE_NULL.
	* plugin/plugin-gcn.c (GOMP_OFFLOAD_get_uid): New.
	* plugin/plugin-nvptx.c (GOMP_OFFLOAD_get_uid): New.
	* target.c (str_omp_initial_device): New static var.
	(STR_OMP_DEV_PREFIX): Define.
	(gomp_get_uid_for_device, omp_get_uid_from_device,
	omp_get_device_from_uid): New.
	(gomp_load_plugin_for_device): DLSYM_OPT the function 'get_uid'.
	(gomp_target_init): Set the device's 'uid' field to NULL.
	* testsuite/libgomp.c/device_uid.c: New test.
	* testsuite/libgomp.fortran/device_uid.f90: New test.
2024-09-20 09:25:33 +02:00

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/* Copyright (C) 2005-2024 Free Software Foundation, Inc.
Contributed by Richard Henderson <rth@redhat.com>.
This file is part of the GNU Offloading and Multi Processing Library
(libgomp).
Libgomp is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for
more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#ifndef _OMP_H
#define _OMP_H 1
#if defined(__GNUC__) && _OPENMP >= 201811
# define __GOMP_DEPRECATED_5_0 __attribute__((__deprecated__))
#else
# define __GOMP_DEPRECATED_5_0
#endif
#if defined(__GNUC__) && _OPENMP >= 202011
# define __GOMP_DEPRECATED_5_1 __attribute__((__deprecated__))
#else
# define __GOMP_DEPRECATED_5_1
#endif
#ifndef _LIBGOMP_OMP_LOCK_DEFINED
#define _LIBGOMP_OMP_LOCK_DEFINED 1
/* These two structures get edited by the libgomp build process to
reflect the shape of the two types. Their internals are private
to the library. */
typedef struct
{
unsigned char _x[@OMP_LOCK_SIZE@]
__attribute__((__aligned__(@OMP_LOCK_ALIGN@)));
} omp_lock_t;
typedef struct
{
unsigned char _x[@OMP_NEST_LOCK_SIZE@]
__attribute__((__aligned__(@OMP_NEST_LOCK_ALIGN@)));
} omp_nest_lock_t;
#endif
typedef enum omp_sched_t
{
omp_sched_static = 1,
omp_sched_dynamic = 2,
omp_sched_guided = 3,
omp_sched_auto = 4,
omp_sched_monotonic = 0x80000000U
} omp_sched_t;
typedef enum omp_proc_bind_t
{
omp_proc_bind_false = 0,
omp_proc_bind_true = 1,
omp_proc_bind_primary = 2,
omp_proc_bind_master __GOMP_DEPRECATED_5_1
= omp_proc_bind_primary,
omp_proc_bind_close = 3,
omp_proc_bind_spread = 4
} omp_proc_bind_t;
typedef enum omp_sync_hint_t
{
omp_sync_hint_none = 0,
omp_lock_hint_none __GOMP_DEPRECATED_5_0 = omp_sync_hint_none,
omp_sync_hint_uncontended = 1,
omp_lock_hint_uncontended __GOMP_DEPRECATED_5_0 = omp_sync_hint_uncontended,
omp_sync_hint_contended = 2,
omp_lock_hint_contended __GOMP_DEPRECATED_5_0 = omp_sync_hint_contended,
omp_sync_hint_nonspeculative = 4,
omp_lock_hint_nonspeculative __GOMP_DEPRECATED_5_0
= omp_sync_hint_nonspeculative,
omp_sync_hint_speculative = 8,
omp_lock_hint_speculative __GOMP_DEPRECATED_5_0 = omp_sync_hint_speculative
} omp_sync_hint_t;
typedef __GOMP_DEPRECATED_5_0 omp_sync_hint_t omp_lock_hint_t;
typedef struct __attribute__((__aligned__ (sizeof (void *)))) omp_depend_t
{
char __omp_depend_t__[2 * sizeof (void *)];
} omp_depend_t;
typedef enum omp_pause_resource_t
{
omp_pause_soft = 1,
omp_pause_hard = 2
} omp_pause_resource_t;
typedef __INTPTR_TYPE__ omp_intptr_t;
typedef __UINTPTR_TYPE__ omp_uintptr_t;
#if __cplusplus >= 201103L
# define __GOMP_UINTPTR_T_ENUM : omp_uintptr_t
#else
# define __GOMP_UINTPTR_T_ENUM
#endif
typedef enum omp_memspace_handle_t __GOMP_UINTPTR_T_ENUM
{
omp_default_mem_space = 0,
omp_large_cap_mem_space = 1,
omp_const_mem_space = 2,
omp_high_bw_mem_space = 3,
omp_low_lat_mem_space = 4,
__omp_memspace_handle_t_max__ = __UINTPTR_MAX__
} omp_memspace_handle_t;
typedef enum omp_allocator_handle_t __GOMP_UINTPTR_T_ENUM
{
omp_null_allocator = 0,
omp_default_mem_alloc = 1,
omp_large_cap_mem_alloc = 2,
omp_const_mem_alloc = 3,
omp_high_bw_mem_alloc = 4,
omp_low_lat_mem_alloc = 5,
omp_cgroup_mem_alloc = 6,
omp_pteam_mem_alloc = 7,
omp_thread_mem_alloc = 8,
ompx_gnu_pinned_mem_alloc = 200,
__omp_allocator_handle_t_max__ = __UINTPTR_MAX__
} omp_allocator_handle_t;
typedef enum omp_alloctrait_key_t
{
omp_atk_sync_hint = 1,
omp_atk_alignment = 2,
omp_atk_access = 3,
omp_atk_pool_size = 4,
omp_atk_fallback = 5,
omp_atk_fb_data = 6,
omp_atk_pinned = 7,
omp_atk_partition = 8
} omp_alloctrait_key_t;
typedef enum omp_alloctrait_value_t
{
omp_atv_default = (__UINTPTR_TYPE__) -1,
omp_atv_false = 0,
omp_atv_true = 1,
omp_atv_contended = 3,
omp_atv_uncontended = 4,
omp_atv_serialized = 5,
omp_atv_sequential __GOMP_DEPRECATED_5_1 = omp_atv_serialized,
omp_atv_private = 6,
omp_atv_all = 7,
omp_atv_thread = 8,
omp_atv_pteam = 9,
omp_atv_cgroup = 10,
omp_atv_default_mem_fb = 11,
omp_atv_null_fb = 12,
omp_atv_abort_fb = 13,
omp_atv_allocator_fb = 14,
omp_atv_environment = 15,
omp_atv_nearest = 16,
omp_atv_blocked = 17,
omp_atv_interleaved = 18
} omp_alloctrait_value_t;
typedef struct omp_alloctrait_t
{
omp_alloctrait_key_t key;
omp_uintptr_t value;
} omp_alloctrait_t;
typedef enum omp_event_handle_t __GOMP_UINTPTR_T_ENUM
{
__omp_event_handle_t_max__ = __UINTPTR_MAX__
} omp_event_handle_t;
enum
{
omp_initial_device = -1,
omp_invalid_device = -4
};
typedef enum omp_interop_t __GOMP_UINTPTR_T_ENUM
{
omp_interop_none = 0,
__omp_interop_t_max__ = __UINTPTR_MAX__
} omp_interop_t;
typedef enum omp_interop_fr_t
{
omp_ifr_cuda = 1,
omp_ifr_cuda_driver = 2,
omp_ifr_opencl = 3,
omp_ifr_sycl = 4,
omp_ifr_hip = 5,
omp_ifr_level_zero = 6,
omp_ifr_hsa = 7,
omp_ifr_last = omp_ifr_hsa
} omp_interop_fr_t;
typedef enum omp_interop_property_t
{
omp_ipr_fr_id = -1,
omp_ipr_fr_name = -2,
omp_ipr_vendor = -3,
omp_ipr_vendor_name = -4,
omp_ipr_device_num = -5,
omp_ipr_platform = -6,
omp_ipr_device = -7,
omp_ipr_device_context = -8,
omp_ipr_targetsync = -9,
omp_ipr_first = -9
} omp_interop_property_t;
typedef enum omp_interop_rc_t
{
omp_irc_no_value = 1,
omp_irc_success = 0,
omp_irc_empty = -1,
omp_irc_out_of_range = -2,
omp_irc_type_int = -3,
omp_irc_type_ptr = -4,
omp_irc_type_str = -5,
omp_irc_other = -6
} omp_interop_rc_t;
#ifdef __cplusplus
extern "C" {
# define __GOMP_NOTHROW throw ()
# define __GOMP_DEFAULT_NULL_ALLOCATOR = omp_null_allocator
# define __GOMP_DEFAULT_NULL = __null
#else
# define __GOMP_NOTHROW __attribute__((__nothrow__))
# define __GOMP_DEFAULT_NULL_ALLOCATOR
# define __GOMP_DEFAULT_NULL
#endif
extern void omp_set_num_threads (int) __GOMP_NOTHROW;
extern int omp_get_num_threads (void) __GOMP_NOTHROW;
extern int omp_get_max_threads (void) __GOMP_NOTHROW;
extern int omp_get_thread_num (void) __GOMP_NOTHROW;
extern int omp_get_num_procs (void) __GOMP_NOTHROW;
extern int omp_in_parallel (void) __GOMP_NOTHROW;
extern void omp_set_dynamic (int) __GOMP_NOTHROW;
extern int omp_get_dynamic (void) __GOMP_NOTHROW;
extern void omp_set_nested (int) __GOMP_NOTHROW __GOMP_DEPRECATED_5_0;
extern int omp_get_nested (void) __GOMP_NOTHROW __GOMP_DEPRECATED_5_0;
extern void omp_init_lock (omp_lock_t *) __GOMP_NOTHROW;
extern void omp_init_lock_with_hint (omp_lock_t *, omp_sync_hint_t)
__GOMP_NOTHROW;
extern void omp_destroy_lock (omp_lock_t *) __GOMP_NOTHROW;
extern void omp_set_lock (omp_lock_t *) __GOMP_NOTHROW;
extern void omp_unset_lock (omp_lock_t *) __GOMP_NOTHROW;
extern int omp_test_lock (omp_lock_t *) __GOMP_NOTHROW;
extern void omp_init_nest_lock (omp_nest_lock_t *) __GOMP_NOTHROW;
extern void omp_init_nest_lock_with_hint (omp_nest_lock_t *, omp_sync_hint_t)
__GOMP_NOTHROW;
extern void omp_destroy_nest_lock (omp_nest_lock_t *) __GOMP_NOTHROW;
extern void omp_set_nest_lock (omp_nest_lock_t *) __GOMP_NOTHROW;
extern void omp_unset_nest_lock (omp_nest_lock_t *) __GOMP_NOTHROW;
extern int omp_test_nest_lock (omp_nest_lock_t *) __GOMP_NOTHROW;
extern double omp_get_wtime (void) __GOMP_NOTHROW;
extern double omp_get_wtick (void) __GOMP_NOTHROW;
extern void omp_set_schedule (omp_sched_t, int) __GOMP_NOTHROW;
extern void omp_get_schedule (omp_sched_t *, int *) __GOMP_NOTHROW;
extern int omp_get_thread_limit (void) __GOMP_NOTHROW;
extern void omp_set_max_active_levels (int) __GOMP_NOTHROW;
extern int omp_get_max_active_levels (void) __GOMP_NOTHROW;
extern int omp_get_supported_active_levels (void) __GOMP_NOTHROW;
extern int omp_get_level (void) __GOMP_NOTHROW;
extern int omp_get_ancestor_thread_num (int) __GOMP_NOTHROW;
extern int omp_get_team_size (int) __GOMP_NOTHROW;
extern int omp_get_active_level (void) __GOMP_NOTHROW;
extern int omp_in_final (void) __GOMP_NOTHROW;
extern int omp_in_explicit_task (void) __GOMP_NOTHROW;
extern int omp_get_cancellation (void) __GOMP_NOTHROW;
extern omp_proc_bind_t omp_get_proc_bind (void) __GOMP_NOTHROW;
extern int omp_get_num_places (void) __GOMP_NOTHROW;
extern int omp_get_place_num_procs (int) __GOMP_NOTHROW;
extern void omp_get_place_proc_ids (int, int *) __GOMP_NOTHROW;
extern int omp_get_place_num (void) __GOMP_NOTHROW;
extern int omp_get_partition_num_places (void) __GOMP_NOTHROW;
extern void omp_get_partition_place_nums (int *) __GOMP_NOTHROW;
extern void omp_set_default_device (int) __GOMP_NOTHROW;
extern int omp_get_default_device (void) __GOMP_NOTHROW;
extern int omp_get_num_devices (void) __GOMP_NOTHROW;
extern int omp_get_device_num (void) __GOMP_NOTHROW;
extern int omp_get_num_teams (void) __GOMP_NOTHROW;
extern int omp_get_team_num (void) __GOMP_NOTHROW;
extern int omp_is_initial_device (void) __GOMP_NOTHROW;
extern int omp_get_initial_device (void) __GOMP_NOTHROW;
extern int omp_get_max_task_priority (void) __GOMP_NOTHROW;
extern void omp_fulfill_event (omp_event_handle_t) __GOMP_NOTHROW;
extern void omp_set_num_teams (int) __GOMP_NOTHROW;
extern int omp_get_max_teams (void) __GOMP_NOTHROW;
extern void omp_set_teams_thread_limit (int) __GOMP_NOTHROW;
extern int omp_get_teams_thread_limit (void) __GOMP_NOTHROW;
extern void *omp_target_alloc (__SIZE_TYPE__, int) __GOMP_NOTHROW;
extern void omp_target_free (void *, int) __GOMP_NOTHROW;
extern int omp_target_is_present (const void *, int) __GOMP_NOTHROW;
extern int omp_target_memcpy (void *, const void *, __SIZE_TYPE__,
__SIZE_TYPE__, __SIZE_TYPE__, int, int)
__GOMP_NOTHROW;
extern int omp_target_memcpy_async (void *, const void *, __SIZE_TYPE__,
__SIZE_TYPE__, __SIZE_TYPE__, int, int,
int, omp_depend_t * __GOMP_DEFAULT_NULL)
__GOMP_NOTHROW;
extern int omp_target_memcpy_rect (void *, const void *, __SIZE_TYPE__, int,
const __SIZE_TYPE__ *,
const __SIZE_TYPE__ *,
const __SIZE_TYPE__ *,
const __SIZE_TYPE__ *,
const __SIZE_TYPE__ *, int, int)
__GOMP_NOTHROW;
extern int omp_target_memcpy_rect_async (void *, const void *, __SIZE_TYPE__,
int, const __SIZE_TYPE__ *,
const __SIZE_TYPE__ *,
const __SIZE_TYPE__ *,
const __SIZE_TYPE__ *,
const __SIZE_TYPE__ *, int, int, int,
omp_depend_t * __GOMP_DEFAULT_NULL)
__GOMP_NOTHROW;
extern int omp_target_associate_ptr (const void *, const void *, __SIZE_TYPE__,
__SIZE_TYPE__, int) __GOMP_NOTHROW;
extern int omp_target_disassociate_ptr (const void *, int) __GOMP_NOTHROW;
extern void *omp_get_mapped_ptr (const void *, int) __GOMP_NOTHROW;
extern int omp_target_is_accessible (const void *, __SIZE_TYPE__, int)
__GOMP_NOTHROW;
extern void omp_set_affinity_format (const char *) __GOMP_NOTHROW;
extern __SIZE_TYPE__ omp_get_affinity_format (char *, __SIZE_TYPE__)
__GOMP_NOTHROW;
extern void omp_display_affinity (const char *) __GOMP_NOTHROW;
extern __SIZE_TYPE__ omp_capture_affinity (char *, __SIZE_TYPE__, const char *)
__GOMP_NOTHROW;
extern int omp_pause_resource (omp_pause_resource_t, int) __GOMP_NOTHROW;
extern int omp_pause_resource_all (omp_pause_resource_t) __GOMP_NOTHROW;
extern omp_allocator_handle_t omp_init_allocator (omp_memspace_handle_t,
int,
const omp_alloctrait_t [])
__GOMP_NOTHROW;
extern void omp_destroy_allocator (omp_allocator_handle_t) __GOMP_NOTHROW;
extern void omp_set_default_allocator (omp_allocator_handle_t) __GOMP_NOTHROW;
extern omp_allocator_handle_t omp_get_default_allocator (void) __GOMP_NOTHROW;
extern void omp_free (void *,
omp_allocator_handle_t __GOMP_DEFAULT_NULL_ALLOCATOR)
__GOMP_NOTHROW;
extern void *omp_alloc (__SIZE_TYPE__,
omp_allocator_handle_t __GOMP_DEFAULT_NULL_ALLOCATOR)
__GOMP_NOTHROW __attribute__((__malloc__, __malloc__ (omp_free),
__alloc_size__ (1)));
extern void *omp_aligned_alloc (__SIZE_TYPE__, __SIZE_TYPE__,
omp_allocator_handle_t
__GOMP_DEFAULT_NULL_ALLOCATOR)
__GOMP_NOTHROW __attribute__((__malloc__, __malloc__ (omp_free),
__alloc_size__ (2), __alloc_align__ (1)));
extern void *omp_calloc (__SIZE_TYPE__, __SIZE_TYPE__,
omp_allocator_handle_t __GOMP_DEFAULT_NULL_ALLOCATOR)
__GOMP_NOTHROW __attribute__((__malloc__, __malloc__ (omp_free),
__alloc_size__ (1, 2)));
extern void *omp_aligned_calloc (__SIZE_TYPE__, __SIZE_TYPE__, __SIZE_TYPE__,
omp_allocator_handle_t
__GOMP_DEFAULT_NULL_ALLOCATOR)
__GOMP_NOTHROW __attribute__((__malloc__, __malloc__ (omp_free),
__alloc_size__ (2, 3), __alloc_align__ (1)));
extern void *omp_realloc (void *, __SIZE_TYPE__,
omp_allocator_handle_t __GOMP_DEFAULT_NULL_ALLOCATOR,
omp_allocator_handle_t __GOMP_DEFAULT_NULL_ALLOCATOR)
__GOMP_NOTHROW __attribute__((__malloc__ (omp_free), __alloc_size__ (2)));
extern void omp_display_env (int) __GOMP_NOTHROW;
extern int omp_get_num_interop_properties (const omp_interop_t) __GOMP_NOTHROW;
extern omp_intptr_t omp_get_interop_int (const omp_interop_t,
omp_interop_property_t,
omp_interop_rc_t * __GOMP_DEFAULT_NULL)
__GOMP_NOTHROW;
extern void *omp_get_interop_ptr (const omp_interop_t, omp_interop_property_t,
omp_interop_rc_t * __GOMP_DEFAULT_NULL)
__GOMP_NOTHROW;
extern const char *omp_get_interop_str (const omp_interop_t,
omp_interop_property_t,
omp_interop_rc_t * __GOMP_DEFAULT_NULL)
__GOMP_NOTHROW;
extern const char *omp_get_interop_name (const omp_interop_t,
omp_interop_property_t) __GOMP_NOTHROW;
extern const char *omp_get_interop_type_desc (const omp_interop_t,
omp_interop_property_t)
__GOMP_NOTHROW;
extern const char *omp_get_interop_rc_desc (const omp_interop_t,
omp_interop_rc_t) __GOMP_NOTHROW;
extern int omp_get_device_from_uid (const char *) __GOMP_NOTHROW;
extern const char *omp_get_uid_from_device (int) __GOMP_NOTHROW;
#ifdef __cplusplus
}
#endif
#endif /* _OMP_H */
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