LLVM OpenMP* Runtime Library
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ompt-specific.h
1/*
2 * ompt-specific.h - header of OMPT internal functions implementation
3 */
4
5//===----------------------------------------------------------------------===//
6//
7// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
8// See https://llvm.org/LICENSE.txt for license information.
9// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
10//
11//===----------------------------------------------------------------------===//
12
13#ifndef OMPT_SPECIFIC_H
14#define OMPT_SPECIFIC_H
15
16#include "kmp.h"
17
18#if OMPT_SUPPORT
19/*****************************************************************************
20 * forward declarations
21 ****************************************************************************/
22
25void __ompt_force_initialization();
26
27void __ompt_team_assign_id(kmp_team_t *team, ompt_data_t ompt_pid);
28void __ompt_thread_assign_wait_id(void *variable);
29
30void __ompt_lw_taskteam_init(ompt_lw_taskteam_t *lwt, kmp_info_t *thr, int gtid,
31 ompt_data_t *ompt_pid, void *codeptr);
32
33void __ompt_lw_taskteam_link(ompt_lw_taskteam_t *lwt, kmp_info_t *thr,
34 int on_heap, bool always = false);
35
36void __ompt_lw_taskteam_unlink(kmp_info_t *thr);
37
38ompt_team_info_t *__ompt_get_teaminfo(int depth, int *size);
39
40ompt_data_t *__ompt_get_task_data();
41
42ompt_data_t *__ompt_get_target_task_data();
43
44ompt_task_info_t *__ompt_get_task_info_object(int depth);
45
46int __ompt_get_parallel_info_internal(int ancestor_level,
47 ompt_data_t **parallel_data,
48 int *team_size);
49
50int __ompt_get_task_info_internal(int ancestor_level, int *type,
51 ompt_data_t **task_data,
52 ompt_frame_t **task_frame,
53 ompt_data_t **parallel_data, int *thread_num);
54
55ompt_data_t *__ompt_get_thread_data_internal();
56
57// __ompt_task_init:
58// Initialize OMPT fields maintained by a task. This will only be called after
59// ompt_start_tool, so we already know whether ompt is enabled or not.
60
61static inline void __ompt_task_init(kmp_taskdata_t *task, int tid) {
62 // The calls to __ompt_task_init already have the ompt_enabled condition.
63 task->ompt_task_info.task_data.value = 0;
64 task->ompt_task_info.frame.exit_frame = ompt_data_none;
65 task->ompt_task_info.frame.enter_frame = ompt_data_none;
66 task->ompt_task_info.frame.exit_frame_flags =
67 task->ompt_task_info.frame.enter_frame_flags = OMPT_FRAME_FLAGS_RUNTIME;
68 task->ompt_task_info.dispatch_chunk.start = 0;
69 task->ompt_task_info.dispatch_chunk.iterations = 0;
70}
71
72/*
73 * Unused currently
74static uint64_t __ompt_get_get_unique_id_internal();
75*/
76
77ompt_sync_region_t __ompt_get_barrier_kind(enum barrier_type, kmp_info_t *);
78
79/*****************************************************************************
80 * macros
81 ****************************************************************************/
82
83#define OMPT_CUR_TASK_INFO(thr) (&((thr)->th.th_current_task->ompt_task_info))
84#define OMPT_CUR_TASK_DATA(thr) \
85 (&((thr)->th.th_current_task->ompt_task_info.task_data))
86#define OMPT_CUR_TEAM_INFO(thr) (&((thr)->th.th_team->t.ompt_team_info))
87#define OMPT_CUR_TEAM_DATA(thr) \
88 (&((thr)->th.th_team->t.ompt_team_info.parallel_data))
89
90#define OMPT_HAVE_WEAK_ATTRIBUTE KMP_HAVE_WEAK_ATTRIBUTE
91#define OMPT_HAVE_PSAPI KMP_HAVE_PSAPI
92#define OMPT_STR_MATCH(haystack, needle) __kmp_str_match(haystack, 0, needle)
93
94inline void *__ompt_load_return_address(int gtid) {
95 kmp_info_t *thr = __kmp_threads[gtid];
96 void *return_address = thr->th.ompt_thread_info.return_address;
97 thr->th.ompt_thread_info.return_address = NULL;
98 return return_address;
99}
100
101/*#define OMPT_STORE_RETURN_ADDRESS(gtid) \
102 if (ompt_enabled.enabled && gtid >= 0 && __kmp_threads[gtid] && \
103 !__kmp_threads[gtid]->th.ompt_thread_info.return_address) \
104 __kmp_threads[gtid]->th.ompt_thread_info.return_address = \
105 __builtin_return_address(0)*/
106#define OMPT_STORE_RETURN_ADDRESS(gtid) \
107 OmptReturnAddressGuard ReturnAddressGuard{gtid, __builtin_return_address(0)};
108#define OMPT_LOAD_RETURN_ADDRESS(gtid) __ompt_load_return_address(gtid)
109#define OMPT_LOAD_OR_GET_RETURN_ADDRESS(gtid) \
110 ((ompt_enabled.enabled && gtid >= 0 && __kmp_threads[gtid] && \
111 __kmp_threads[gtid]->th.ompt_thread_info.return_address) \
112 ? __ompt_load_return_address(gtid) \
113 : __builtin_return_address(0))
114
115#define OMPT_GET_DISPATCH_CHUNK(chunk, lb, ub, incr) \
116 do { \
117 if (incr > 0) { \
118 chunk.start = static_cast<uint64_t>(lb); \
119 chunk.iterations = static_cast<uint64_t>(((ub) - (lb)) / (incr) + 1); \
120 } else { \
121 chunk.start = static_cast<uint64_t>(ub); \
122 chunk.iterations = static_cast<uint64_t>(((lb) - (ub)) / -(incr) + 1); \
123 } \
124 } while (0)
125
126//******************************************************************************
127// inline functions
128//******************************************************************************
129
130inline kmp_info_t *ompt_get_thread_gtid(int gtid) {
131 return (gtid >= 0) ? __kmp_thread_from_gtid(gtid) : NULL;
132}
133
134inline kmp_info_t *ompt_get_thread() {
135 int gtid = __kmp_get_gtid();
136 return ompt_get_thread_gtid(gtid);
137}
138
139inline void ompt_set_thread_state(kmp_info_t *thread, ompt_state_t state) {
140 if (thread)
141 thread->th.ompt_thread_info.state = state;
142}
143
144inline const char *ompt_get_runtime_version() {
145 return &__kmp_version_lib_ver[KMP_VERSION_MAGIC_LEN];
146}
147
148inline ompt_work_t ompt_get_work_schedule(enum sched_type schedule) {
149 switch (SCHEDULE_WITHOUT_MODIFIERS(schedule)) {
150 case kmp_sch_static_chunked:
151 case kmp_sch_static_balanced:
152 case kmp_sch_static_greedy:
153 return ompt_work_loop_static;
154 case kmp_sch_dynamic_chunked:
155 case kmp_sch_static_steal:
156 return ompt_work_loop_dynamic;
157 case kmp_sch_guided_iterative_chunked:
158 case kmp_sch_guided_analytical_chunked:
161 return ompt_work_loop_guided;
162 default:
163 return ompt_work_loop_other;
164 }
165}
166
167class OmptReturnAddressGuard {
168private:
169 bool SetAddress{false};
170 int Gtid;
171
172public:
173 OmptReturnAddressGuard(int Gtid, void *ReturnAddress) : Gtid(Gtid) {
174 if (ompt_enabled.enabled && Gtid >= 0 && __kmp_threads[Gtid] &&
175 !__kmp_threads[Gtid]->th.ompt_thread_info.return_address) {
176 SetAddress = true;
177 __kmp_threads[Gtid]->th.ompt_thread_info.return_address = ReturnAddress;
178 }
179 }
180 ~OmptReturnAddressGuard() {
181 if (SetAddress)
182 __kmp_threads[Gtid]->th.ompt_thread_info.return_address = NULL;
183 }
184};
185
186#endif // OMPT_SUPPORT
187
188// macros providing the OMPT callbacks for reduction clause
189#if OMPT_SUPPORT && OMPT_OPTIONAL
190#define OMPT_REDUCTION_DECL(this_thr, gtid) \
191 ompt_data_t *my_task_data = OMPT_CUR_TASK_DATA(this_thr); \
192 ompt_data_t *my_parallel_data = OMPT_CUR_TEAM_DATA(this_thr); \
193 void *return_address = OMPT_LOAD_RETURN_ADDRESS(gtid);
194#define OMPT_REDUCTION_BEGIN \
195 if (ompt_enabled.enabled && ompt_enabled.ompt_callback_reduction) { \
196 ompt_callbacks.ompt_callback(ompt_callback_reduction)( \
197 ompt_sync_region_reduction, ompt_scope_begin, my_parallel_data, \
198 my_task_data, return_address); \
199 }
200#define OMPT_REDUCTION_END \
201 if (ompt_enabled.enabled && ompt_enabled.ompt_callback_reduction) { \
202 ompt_callbacks.ompt_callback(ompt_callback_reduction)( \
203 ompt_sync_region_reduction, ompt_scope_end, my_parallel_data, \
204 my_task_data, return_address); \
205 }
206#else // OMPT_SUPPORT && OMPT_OPTIONAL
207#define OMPT_REDUCTION_DECL(this_thr, gtid)
208#define OMPT_REDUCTION_BEGIN
209#define OMPT_REDUCTION_END
210#endif // ! OMPT_SUPPORT && OMPT_OPTIONAL
211
212#endif
sched_type
Definition kmp.h:370
@ kmp_sch_guided_simd
Definition kmp.h:391
@ kmp_sch_guided_chunked
Definition kmp.h:375