LLVM OpenMP* Runtime Library
kmp_global.c
1 /*
2  * kmp_global.c -- KPTS global variables for runtime support library
3  */
4 
5 
6 //===----------------------------------------------------------------------===//
7 //
8 // The LLVM Compiler Infrastructure
9 //
10 // This file is dual licensed under the MIT and the University of Illinois Open
11 // Source Licenses. See LICENSE.txt for details.
12 //
13 //===----------------------------------------------------------------------===//
14 
15 
16 #include "kmp.h"
17 
18 kmp_key_t __kmp_gtid_threadprivate_key;
19 
20 #if KMP_ARCH_X86 || KMP_ARCH_X86_64
21 kmp_cpuinfo_t __kmp_cpuinfo = { 0 }; // Not initialized
22 #endif
23 
24 #if KMP_STATS_ENABLED
25 #include "kmp_stats.h"
26 // lock for modifying the global __kmp_stats_list
27 kmp_tas_lock_t __kmp_stats_lock;
28 
29 // global list of per thread stats, the head is a sentinel node which accumulates all stats produced before __kmp_create_worker is called.
30 kmp_stats_list __kmp_stats_list;
31 
32 // thread local pointer to stats node within list
33 __thread kmp_stats_list* __kmp_stats_thread_ptr = &__kmp_stats_list;
34 
35 // gives reference tick for all events (considered the 0 tick)
36 tsc_tick_count __kmp_stats_start_time;
37 #endif
38 
39 /* ----------------------------------------------------- */
40 /* INITIALIZATION VARIABLES */
41 /* they are syncronized to write during init, but read anytime */
42 volatile int __kmp_init_serial = FALSE;
43 volatile int __kmp_init_gtid = FALSE;
44 volatile int __kmp_init_common = FALSE;
45 volatile int __kmp_init_middle = FALSE;
46 volatile int __kmp_init_parallel = FALSE;
47 volatile int __kmp_init_monitor = 0; /* 1 - launched, 2 - actually started (Windows* OS only) */
48 volatile int __kmp_init_user_locks = FALSE;
49 
50 /* list of address of allocated caches for commons */
51 kmp_cached_addr_t *__kmp_threadpriv_cache_list = NULL;
52 
53 int __kmp_init_counter = 0;
54 int __kmp_root_counter = 0;
55 int __kmp_version = 0;
56 
57 volatile kmp_uint32 __kmp_team_counter = 0;
58 volatile kmp_uint32 __kmp_task_counter = 0;
59 
60 unsigned int __kmp_init_wait = KMP_DEFAULT_INIT_WAIT; /* initial number of spin-tests */
61 unsigned int __kmp_next_wait = KMP_DEFAULT_NEXT_WAIT; /* susequent number of spin-tests */
62 
63 size_t __kmp_stksize = KMP_DEFAULT_STKSIZE;
64 size_t __kmp_monitor_stksize = 0; // auto adjust
65 size_t __kmp_stkoffset = KMP_DEFAULT_STKOFFSET;
66 int __kmp_stkpadding = KMP_MIN_STKPADDING;
67 
68 size_t __kmp_malloc_pool_incr = KMP_DEFAULT_MALLOC_POOL_INCR;
69 
70 /* Barrier method defaults, settings, and strings */
71 /* branch factor = 2^branch_bits (only relevant for tree and hyper barrier types) */
72 #if KMP_ARCH_X86_64
73 kmp_uint32 __kmp_barrier_gather_bb_dflt = 2; /* branch_factor = 4 */ /* hyper2: C78980 */
74 kmp_uint32 __kmp_barrier_release_bb_dflt = 2; /* branch_factor = 4 */ /* hyper2: C78980 */
75 #else
76 kmp_uint32 __kmp_barrier_gather_bb_dflt = 2; /* branch_factor = 4 */ /* communication in core for MIC */
77 kmp_uint32 __kmp_barrier_release_bb_dflt = 2; /* branch_factor = 4 */ /* communication in core for MIC */
78 #endif // KMP_ARCH_X86_64
79 #if KMP_ARCH_X86_64
80 kmp_bar_pat_e __kmp_barrier_gather_pat_dflt = bp_hyper_bar; /* hyper2: C78980 */
81 kmp_bar_pat_e __kmp_barrier_release_pat_dflt = bp_hyper_bar; /* hyper2: C78980 */
82 #else
83 kmp_bar_pat_e __kmp_barrier_gather_pat_dflt = bp_linear_bar;
84 kmp_bar_pat_e __kmp_barrier_release_pat_dflt = bp_linear_bar;
85 #endif
86 kmp_uint32 __kmp_barrier_gather_branch_bits [ bs_last_barrier ] = { 0 };
87 kmp_uint32 __kmp_barrier_release_branch_bits [ bs_last_barrier ] = { 0 };
88 kmp_bar_pat_e __kmp_barrier_gather_pattern [ bs_last_barrier ] = { bp_linear_bar };
89 kmp_bar_pat_e __kmp_barrier_release_pattern [ bs_last_barrier ] = { bp_linear_bar };
90 char const *__kmp_barrier_branch_bit_env_name [ bs_last_barrier ] =
91  { "KMP_PLAIN_BARRIER", "KMP_FORKJOIN_BARRIER"
92  #if KMP_FAST_REDUCTION_BARRIER
93  , "KMP_REDUCTION_BARRIER"
94  #endif // KMP_FAST_REDUCTION_BARRIER
95  };
96 char const *__kmp_barrier_pattern_env_name [ bs_last_barrier ] =
97  { "KMP_PLAIN_BARRIER_PATTERN", "KMP_FORKJOIN_BARRIER_PATTERN"
98  #if KMP_FAST_REDUCTION_BARRIER
99  , "KMP_REDUCTION_BARRIER_PATTERN"
100  #endif // KMP_FAST_REDUCTION_BARRIER
101  };
102 char const *__kmp_barrier_type_name [ bs_last_barrier ] =
103  { "plain", "forkjoin"
104  #if KMP_FAST_REDUCTION_BARRIER
105  , "reduction"
106  #endif // KMP_FAST_REDUCTION_BARRIER
107  };
108 char const *__kmp_barrier_pattern_name[bp_last_bar] = {"linear","tree","hyper","hierarchical"};
109 
110 int __kmp_allThreadsSpecified = 0;
111 size_t __kmp_align_alloc = CACHE_LINE;
112 
113 
114 int __kmp_generate_warnings = kmp_warnings_low;
115 int __kmp_reserve_warn = 0;
116 int __kmp_xproc = 0;
117 int __kmp_avail_proc = 0;
118 size_t __kmp_sys_min_stksize = KMP_MIN_STKSIZE;
119 int __kmp_sys_max_nth = KMP_MAX_NTH;
120 int __kmp_max_nth = 0;
121 int __kmp_threads_capacity = 0;
122 int __kmp_dflt_team_nth = 0;
123 int __kmp_dflt_team_nth_ub = 0;
124 int __kmp_tp_capacity = 0;
125 int __kmp_tp_cached = 0;
126 int __kmp_dflt_nested = FALSE;
127 int __kmp_dispatch_num_buffers = KMP_DFLT_DISP_NUM_BUFF;
128 int __kmp_dflt_max_active_levels = KMP_MAX_ACTIVE_LEVELS_LIMIT; /* max_active_levels limit */
129 #if KMP_NESTED_HOT_TEAMS
130 int __kmp_hot_teams_mode = 0; /* 0 - free extra threads when reduced */
131  /* 1 - keep extra threads when reduced */
132 int __kmp_hot_teams_max_level = 1; /* nesting level of hot teams */
133 #endif
134 enum library_type __kmp_library = library_none;
135 enum sched_type __kmp_sched = kmp_sch_default; /* scheduling method for runtime scheduling */
136 enum sched_type __kmp_static = kmp_sch_static_greedy; /* default static scheduling method */
137 enum sched_type __kmp_guided = kmp_sch_guided_iterative_chunked; /* default guided scheduling method */
138 enum sched_type __kmp_auto = kmp_sch_guided_analytical_chunked; /* default auto scheduling method */
139 int __kmp_dflt_blocktime = KMP_DEFAULT_BLOCKTIME;
140 int __kmp_monitor_wakeups = KMP_MIN_MONITOR_WAKEUPS;
141 int __kmp_bt_intervals = KMP_INTERVALS_FROM_BLOCKTIME( KMP_DEFAULT_BLOCKTIME, KMP_MIN_MONITOR_WAKEUPS );
142 #ifdef KMP_ADJUST_BLOCKTIME
143 int __kmp_zero_bt = FALSE;
144 #endif /* KMP_ADJUST_BLOCKTIME */
145 #ifdef KMP_DFLT_NTH_CORES
146 int __kmp_ncores = 0;
147 #endif
148 int __kmp_chunk = 0;
149 int __kmp_abort_delay = 0;
150 #if KMP_OS_LINUX && defined(KMP_TDATA_GTID)
151 int __kmp_gtid_mode = 3; /* use __declspec(thread) TLS to store gtid */
152 int __kmp_adjust_gtid_mode = FALSE;
153 #elif KMP_OS_WINDOWS
154 int __kmp_gtid_mode = 2; /* use TLS functions to store gtid */
155 int __kmp_adjust_gtid_mode = FALSE;
156 #else
157 int __kmp_gtid_mode = 0; /* select method to get gtid based on #threads */
158 int __kmp_adjust_gtid_mode = TRUE;
159 #endif /* KMP_OS_LINUX && defined(KMP_TDATA_GTID) */
160 #ifdef KMP_TDATA_GTID
161 #if KMP_OS_WINDOWS
162 __declspec(thread) int __kmp_gtid = KMP_GTID_DNE;
163 #else
164 __thread int __kmp_gtid = KMP_GTID_DNE;
165 #endif /* KMP_OS_WINDOWS - workaround because Intel(R) Many Integrated Core compiler 20110316 doesn't accept __declspec */
166 #endif /* KMP_TDATA_GTID */
167 int __kmp_tls_gtid_min = INT_MAX;
168 int __kmp_foreign_tp = TRUE;
169 #if KMP_ARCH_X86 || KMP_ARCH_X86_64
170 int __kmp_inherit_fp_control = TRUE;
171 kmp_int16 __kmp_init_x87_fpu_control_word = 0;
172 kmp_uint32 __kmp_init_mxcsr = 0;
173 #endif /* KMP_ARCH_X86 || KMP_ARCH_X86_64 */
174 
175 #ifdef USE_LOAD_BALANCE
176 double __kmp_load_balance_interval = 1.0;
177 #endif /* USE_LOAD_BALANCE */
178 
179 kmp_nested_nthreads_t __kmp_nested_nth = { NULL, 0, 0 };
180 
181 #if KMP_USE_ADAPTIVE_LOCKS
182 
183 kmp_adaptive_backoff_params_t __kmp_adaptive_backoff_params = { 1, 1024 }; // TODO: tune it!
184 
185 #if KMP_DEBUG_ADAPTIVE_LOCKS
186 char * __kmp_speculative_statsfile = "-";
187 #endif
188 
189 #endif // KMP_USE_ADAPTIVE_LOCKS
190 
191 #if OMP_40_ENABLED
192 int __kmp_display_env = FALSE;
193 int __kmp_display_env_verbose = FALSE;
194 int __kmp_omp_cancellation = FALSE;
195 #endif
196 
197 /* map OMP 3.0 schedule types with our internal schedule types */
198 enum sched_type __kmp_sch_map[ kmp_sched_upper - kmp_sched_lower_ext + kmp_sched_upper_std - kmp_sched_lower - 2 ] = {
199  kmp_sch_static_chunked, // ==> kmp_sched_static = 1
200  kmp_sch_dynamic_chunked, // ==> kmp_sched_dynamic = 2
201  kmp_sch_guided_chunked, // ==> kmp_sched_guided = 3
202  kmp_sch_auto, // ==> kmp_sched_auto = 4
203  kmp_sch_trapezoidal // ==> kmp_sched_trapezoidal = 101
204  // will likely not used, introduced here just to debug the code
205  // of public intel extension schedules
206 };
207 
208 #if KMP_OS_LINUX
209 enum clock_function_type __kmp_clock_function;
210 int __kmp_clock_function_param;
211 #endif /* KMP_OS_LINUX */
212 
213 #if KMP_ARCH_X86_64 && (KMP_OS_LINUX || KMP_OS_WINDOWS)
214 enum mic_type __kmp_mic_type = non_mic;
215 #endif
216 
217 #if KMP_AFFINITY_SUPPORTED
218 
219 # if KMP_USE_HWLOC
220 int __kmp_hwloc_error = FALSE;
221 hwloc_topology_t __kmp_hwloc_topology = NULL;
222 # endif
223 
224 # if KMP_GROUP_AFFINITY
225 
226 int __kmp_num_proc_groups = 1;
227 
228 kmp_GetActiveProcessorCount_t __kmp_GetActiveProcessorCount = NULL;
229 kmp_GetActiveProcessorGroupCount_t __kmp_GetActiveProcessorGroupCount = NULL;
230 kmp_GetThreadGroupAffinity_t __kmp_GetThreadGroupAffinity = NULL;
231 kmp_SetThreadGroupAffinity_t __kmp_SetThreadGroupAffinity = NULL;
232 
233 # endif /* KMP_GROUP_AFFINITY */
234 
235 size_t __kmp_affin_mask_size = 0;
236 enum affinity_type __kmp_affinity_type = affinity_default;
237 enum affinity_gran __kmp_affinity_gran = affinity_gran_default;
238 int __kmp_affinity_gran_levels = -1;
239 int __kmp_affinity_dups = TRUE;
240 enum affinity_top_method __kmp_affinity_top_method = affinity_top_method_default;
241 int __kmp_affinity_compact = 0;
242 int __kmp_affinity_offset = 0;
243 int __kmp_affinity_verbose = FALSE;
244 int __kmp_affinity_warnings = TRUE;
245 int __kmp_affinity_respect_mask = affinity_respect_mask_default;
246 char * __kmp_affinity_proclist = NULL;
247 kmp_affin_mask_t *__kmp_affinity_masks = NULL;
248 unsigned __kmp_affinity_num_masks = 0;
249 
250 char const * __kmp_cpuinfo_file = NULL;
251 
252 #endif /* KMP_AFFINITY_SUPPORTED */
253 
254 #if OMP_40_ENABLED
255 kmp_nested_proc_bind_t __kmp_nested_proc_bind = { NULL, 0, 0 };
256 int __kmp_affinity_num_places = 0;
257 #endif
258 
259 int __kmp_place_num_sockets = 0;
260 int __kmp_place_socket_offset = 0;
261 int __kmp_place_num_cores = 0;
262 int __kmp_place_core_offset = 0;
263 int __kmp_place_num_threads_per_core = 0;
264 
265 kmp_tasking_mode_t __kmp_tasking_mode = tskm_task_teams;
266 #if OMP_45_ENABLED
267 kmp_int32 __kmp_max_task_priority = 0;
268 #endif
269 
270 /* This check ensures that the compiler is passing the correct data type
271  * for the flags formal parameter of the function kmpc_omp_task_alloc().
272  * If the type is not a 4-byte type, then give an error message about
273  * a non-positive length array pointing here. If that happens, the
274  * kmp_tasking_flags_t structure must be redefined to have exactly 32 bits.
275  */
276 KMP_BUILD_ASSERT( sizeof(kmp_tasking_flags_t) == 4 );
277 
278 kmp_int32 __kmp_task_stealing_constraint = 1; /* Constrain task stealing by default */
279 
280 #ifdef DEBUG_SUSPEND
281 int __kmp_suspend_count = 0;
282 #endif
283 
284 int __kmp_settings = FALSE;
285 int __kmp_duplicate_library_ok = 0;
286 #if USE_ITT_BUILD
287 int __kmp_forkjoin_frames = 1;
288 int __kmp_forkjoin_frames_mode = 3;
289 #endif
290 PACKED_REDUCTION_METHOD_T __kmp_force_reduction_method = reduction_method_not_defined;
291 int __kmp_determ_red = FALSE;
292 
293 #ifdef KMP_DEBUG
294 int kmp_a_debug = 0;
295 int kmp_b_debug = 0;
296 int kmp_c_debug = 0;
297 int kmp_d_debug = 0;
298 int kmp_e_debug = 0;
299 int kmp_f_debug = 0;
300 int kmp_diag = 0;
301 #endif
302 
303 /* For debug information logging using rotating buffer */
304 int __kmp_debug_buf = FALSE; /* TRUE means use buffer, FALSE means print to stderr */
305 int __kmp_debug_buf_lines = KMP_DEBUG_BUF_LINES_INIT; /* Lines of debug stored in buffer */
306 int __kmp_debug_buf_chars = KMP_DEBUG_BUF_CHARS_INIT; /* Characters allowed per line in buffer */
307 int __kmp_debug_buf_atomic = FALSE; /* TRUE means use atomic update of buffer entry pointer */
308 
309 char *__kmp_debug_buffer = NULL; /* Debug buffer itself */
310 int __kmp_debug_count = 0; /* Counter for number of lines printed in buffer so far */
311 int __kmp_debug_buf_warn_chars = 0; /* Keep track of char increase recommended in warnings */
312 /* end rotating debug buffer */
313 
314 #ifdef KMP_DEBUG
315 int __kmp_par_range; /* +1 => only go par for constructs in range */
316  /* -1 => only go par for constructs outside range */
317 char __kmp_par_range_routine[KMP_PAR_RANGE_ROUTINE_LEN] = { '\0' };
318 char __kmp_par_range_filename[KMP_PAR_RANGE_FILENAME_LEN] = { '\0' };
319 int __kmp_par_range_lb = 0;
320 int __kmp_par_range_ub = INT_MAX;
321 #endif /* KMP_DEBUG */
322 
323 /* For printing out dynamic storage map for threads and teams */
324 int __kmp_storage_map = FALSE; /* True means print storage map for threads and teams */
325 int __kmp_storage_map_verbose = FALSE; /* True means storage map includes placement info */
326 int __kmp_storage_map_verbose_specified = FALSE;
327 /* Initialize the library data structures when we fork a child process, defaults to TRUE */
328 int __kmp_need_register_atfork = TRUE; /* At initialization, call pthread_atfork to install fork handler */
329 int __kmp_need_register_atfork_specified = TRUE;
330 
331 int __kmp_env_chunk = FALSE; /* KMP_CHUNK specified? */
332 int __kmp_env_stksize = FALSE; /* KMP_STACKSIZE specified? */
333 int __kmp_env_omp_stksize = FALSE; /* OMP_STACKSIZE specified? */
334 int __kmp_env_all_threads = FALSE;/* KMP_ALL_THREADS or KMP_MAX_THREADS specified? */
335 int __kmp_env_omp_all_threads = FALSE;/* OMP_THREAD_LIMIT specified? */
336 int __kmp_env_blocktime = FALSE; /* KMP_BLOCKTIME specified? */
337 int __kmp_env_checks = FALSE; /* KMP_CHECKS specified? */
338 int __kmp_env_consistency_check = FALSE; /* KMP_CONSISTENCY_CHECK specified? */
339 
340 kmp_uint32 __kmp_yield_init = KMP_INIT_WAIT;
341 kmp_uint32 __kmp_yield_next = KMP_NEXT_WAIT;
342 kmp_uint32 __kmp_yielding_on = 1;
343 #if KMP_OS_CNK
344 kmp_uint32 __kmp_yield_cycle = 0;
345 #else
346 kmp_uint32 __kmp_yield_cycle = 1; /* Yield-cycle is on by default */
347 #endif
348 kmp_int32 __kmp_yield_on_count = 10; /* By default, yielding is on for 10 monitor periods. */
349 kmp_int32 __kmp_yield_off_count = 1; /* By default, yielding is off for 1 monitor periods. */
350 /* ----------------------------------------------------- */
351 
352 
353 /* ------------------------------------------------------ */
354 /* STATE mostly syncronized with global lock */
355 /* data written to rarely by masters, read often by workers */
356 /*
357  * SHALL WE EDIT THE COMMENT BELOW IN SOME WAY?
358  * TODO: None of this global padding stuff works consistently because
359  * the order of declaration is not necessarily correlated to storage order.
360  * To fix this, all the important globals must be put in a big structure
361  * instead.
362  */
363 KMP_ALIGN_CACHE
364  kmp_info_t **__kmp_threads = NULL;
365  kmp_root_t **__kmp_root = NULL;
366 
367 /* data read/written to often by masters */
368 KMP_ALIGN_CACHE
369 volatile int __kmp_nth = 0;
370 volatile int __kmp_all_nth = 0;
371 int __kmp_thread_pool_nth = 0;
372 volatile kmp_info_t *__kmp_thread_pool = NULL;
373 volatile kmp_team_t *__kmp_team_pool = NULL;
374 
375 KMP_ALIGN_CACHE
376 volatile int __kmp_thread_pool_active_nth = 0;
377 
378 /* -------------------------------------------------
379  * GLOBAL/ROOT STATE */
380 KMP_ALIGN_CACHE
381 kmp_global_t __kmp_global = {{ 0 }};
382 
383 /* ----------------------------------------------- */
384 /* GLOBAL SYNCHRONIZATION LOCKS */
385 /* TODO verify the need for these locks and if they need to be global */
386 
387 #if KMP_USE_INTERNODE_ALIGNMENT
388 /* Multinode systems have larger cache line granularity which can cause
389  * false sharing if the alignment is not large enough for these locks */
390 KMP_ALIGN_CACHE_INTERNODE
391 
392 kmp_bootstrap_lock_t __kmp_initz_lock = KMP_BOOTSTRAP_LOCK_INITIALIZER( __kmp_initz_lock ); /* Control initializations */
393 KMP_ALIGN_CACHE_INTERNODE
394 kmp_bootstrap_lock_t __kmp_forkjoin_lock; /* control fork/join access */
395 KMP_ALIGN_CACHE_INTERNODE
396 kmp_bootstrap_lock_t __kmp_exit_lock; /* exit() is not always thread-safe */
397 KMP_ALIGN_CACHE_INTERNODE
398 kmp_bootstrap_lock_t __kmp_monitor_lock; /* control monitor thread creation */
399 KMP_ALIGN_CACHE_INTERNODE
400 kmp_bootstrap_lock_t __kmp_tp_cached_lock; /* used for the hack to allow threadprivate cache and __kmp_threads expansion to co-exist */
401 
402 KMP_ALIGN_CACHE_INTERNODE
403 kmp_lock_t __kmp_global_lock; /* Control OS/global access */
404 KMP_ALIGN_CACHE_INTERNODE
405 kmp_queuing_lock_t __kmp_dispatch_lock; /* Control dispatch access */
406 KMP_ALIGN_CACHE_INTERNODE
407 kmp_lock_t __kmp_debug_lock; /* Control I/O access for KMP_DEBUG */
408 #else
409 KMP_ALIGN_CACHE
410 
411 kmp_bootstrap_lock_t __kmp_initz_lock = KMP_BOOTSTRAP_LOCK_INITIALIZER( __kmp_initz_lock ); /* Control initializations */
412 kmp_bootstrap_lock_t __kmp_forkjoin_lock; /* control fork/join access */
413 kmp_bootstrap_lock_t __kmp_exit_lock; /* exit() is not always thread-safe */
414 kmp_bootstrap_lock_t __kmp_monitor_lock; /* control monitor thread creation */
415 kmp_bootstrap_lock_t __kmp_tp_cached_lock; /* used for the hack to allow threadprivate cache and __kmp_threads expansion to co-exist */
416 
417 KMP_ALIGN(128)
418 kmp_lock_t __kmp_global_lock; /* Control OS/global access */
419 KMP_ALIGN(128)
420 kmp_queuing_lock_t __kmp_dispatch_lock; /* Control dispatch access */
421 KMP_ALIGN(128)
422 kmp_lock_t __kmp_debug_lock; /* Control I/O access for KMP_DEBUG */
423 #endif
424 
425 /* ----------------------------------------------- */
426 
427 #if KMP_HANDLE_SIGNALS
428  /*
429  Signal handling is disabled by default, because it confuses users: In case of sigsegv
430  (or other trouble) in user code signal handler catches the signal, which then "appears" in
431  the monitor thread (when the monitor executes raise() function). Users see signal in the
432  monitor thread and blame OpenMP RTL.
433 
434  Grant said signal handling required on some older OSes (Irix?) supported by KAI, because
435  bad applications hung but not aborted. Currently it is not a problem for Linux* OS, OS X* and
436  Windows* OS.
437 
438  Grant: Found new hangs for EL4, EL5, and a Fedora Core machine. So I'm putting
439  the default back for now to see if that fixes hangs on those machines.
440 
441  2010-04013 Lev: It was a bug in Fortran RTL. Fortran RTL prints a kind of stack backtrace
442  when program is aborting, but the code is not signal-safe. When multiple signals raised at
443  the same time (which occurs in dynamic negative tests because all the worker threads detects
444  the same error), Fortran RTL may hang. The bug finally fixed in Fortran RTL library provided
445  by Steve R., and will be available soon.
446  */
447  int __kmp_handle_signals = FALSE;
448 #endif
449 
450 /* ----------------------------------------------- */
451 #ifdef BUILD_TV
452 kmp_key_t __kmp_tv_key = 0;
453 #endif
454 
455 /* ------------------------------------------------------------------------ */
456 /* ------------------------------------------------------------------------ */
457 
458 #ifdef DEBUG_SUSPEND
459 int
460 get_suspend_count_( void ) {
461  int count = __kmp_suspend_count;
462  __kmp_suspend_count = 0;
463  return count;
464 }
465 void
466 set_suspend_count_( int * value ) {
467  __kmp_suspend_count = *value;
468 }
469 #endif
470 
471 // Symbols for MS mutual detection.
472 int _You_must_link_with_exactly_one_OpenMP_library = 1;
473 int _You_must_link_with_Intel_OpenMP_library = 1;
474 #if KMP_OS_WINDOWS && ( KMP_VERSION_MAJOR > 4 )
475  int _You_must_link_with_Microsoft_OpenMP_library = 1;
476 #endif
477 
478 // end of file //
sched_type
Definition: kmp.h:295