| /* Copyright (C) 2005-2020 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/>. */ |
| |
| /* This file defines the OpenMP API entry points that operate on internal |
| control variables. */ |
| |
| #include "libgomp.h" |
| #include "gomp-constants.h" |
| #include <limits.h> |
| |
| void |
| omp_set_num_threads (int n) |
| { |
| struct gomp_task_icv *icv = gomp_icv (true); |
| icv->nthreads_var = (n > 0 ? n : 1); |
| } |
| |
| void |
| omp_set_dynamic (int val) |
| { |
| struct gomp_task_icv *icv = gomp_icv (true); |
| icv->dyn_var = val; |
| } |
| |
| int |
| omp_get_dynamic (void) |
| { |
| struct gomp_task_icv *icv = gomp_icv (false); |
| return icv->dyn_var; |
| } |
| |
| void |
| omp_set_nested (int val) |
| { |
| struct gomp_task_icv *icv = gomp_icv (true); |
| icv->nest_var = val; |
| } |
| |
| int |
| omp_get_nested (void) |
| { |
| struct gomp_task_icv *icv = gomp_icv (false); |
| return icv->nest_var; |
| } |
| |
| void |
| omp_set_schedule (omp_sched_t kind, int chunk_size) |
| { |
| struct gomp_task_icv *icv = gomp_icv (true); |
| switch (kind & ~omp_sched_monotonic) |
| { |
| case omp_sched_static: |
| if (chunk_size < 1) |
| chunk_size = 0; |
| icv->run_sched_chunk_size = chunk_size; |
| break; |
| case omp_sched_dynamic: |
| case omp_sched_guided: |
| if (chunk_size < 1) |
| chunk_size = 1; |
| icv->run_sched_chunk_size = chunk_size; |
| break; |
| case omp_sched_auto: |
| break; |
| default: |
| return; |
| } |
| icv->run_sched_var = kind; |
| } |
| |
| void |
| omp_get_schedule (omp_sched_t *kind, int *chunk_size) |
| { |
| struct gomp_task_icv *icv = gomp_icv (false); |
| *kind = icv->run_sched_var; |
| *chunk_size = icv->run_sched_chunk_size; |
| } |
| |
| int |
| omp_get_max_threads (void) |
| { |
| struct gomp_task_icv *icv = gomp_icv (false); |
| return icv->nthreads_var; |
| } |
| |
| int |
| omp_get_thread_limit (void) |
| { |
| struct gomp_task_icv *icv = gomp_icv (false); |
| return icv->thread_limit_var > INT_MAX ? INT_MAX : icv->thread_limit_var; |
| } |
| |
| void |
| omp_set_max_active_levels (int max_levels) |
| { |
| if (max_levels >= 0) |
| gomp_max_active_levels_var = max_levels; |
| } |
| |
| int |
| omp_get_max_active_levels (void) |
| { |
| return gomp_max_active_levels_var; |
| } |
| |
| int |
| omp_get_cancellation (void) |
| { |
| return gomp_cancel_var; |
| } |
| |
| int |
| omp_get_max_task_priority (void) |
| { |
| return gomp_max_task_priority_var; |
| } |
| |
| omp_proc_bind_t |
| omp_get_proc_bind (void) |
| { |
| struct gomp_task_icv *icv = gomp_icv (false); |
| return icv->bind_var; |
| } |
| |
| int |
| omp_get_initial_device (void) |
| { |
| return GOMP_DEVICE_HOST_FALLBACK; |
| } |
| |
| int |
| omp_get_num_places (void) |
| { |
| return gomp_places_list_len; |
| } |
| |
| int |
| omp_get_place_num (void) |
| { |
| if (gomp_places_list == NULL) |
| return -1; |
| |
| struct gomp_thread *thr = gomp_thread (); |
| if (thr->place == 0) |
| gomp_init_affinity (); |
| |
| return (int) thr->place - 1; |
| } |
| |
| int |
| omp_get_partition_num_places (void) |
| { |
| if (gomp_places_list == NULL) |
| return 0; |
| |
| struct gomp_thread *thr = gomp_thread (); |
| if (thr->place == 0) |
| gomp_init_affinity (); |
| |
| return thr->ts.place_partition_len; |
| } |
| |
| void |
| omp_get_partition_place_nums (int *place_nums) |
| { |
| if (gomp_places_list == NULL) |
| return; |
| |
| struct gomp_thread *thr = gomp_thread (); |
| if (thr->place == 0) |
| gomp_init_affinity (); |
| |
| unsigned int i; |
| for (i = 0; i < thr->ts.place_partition_len; i++) |
| *place_nums++ = thr->ts.place_partition_off + i; |
| } |
| |
| ialias (omp_set_dynamic) |
| ialias (omp_set_nested) |
| ialias (omp_set_num_threads) |
| ialias (omp_get_dynamic) |
| ialias (omp_get_nested) |
| ialias (omp_set_schedule) |
| ialias (omp_get_schedule) |
| ialias (omp_get_max_threads) |
| ialias (omp_get_thread_limit) |
| ialias (omp_set_max_active_levels) |
| ialias (omp_get_max_active_levels) |
| ialias (omp_get_cancellation) |
| ialias (omp_get_proc_bind) |
| ialias (omp_get_initial_device) |
| ialias (omp_get_max_task_priority) |
| ialias (omp_get_num_places) |
| ialias (omp_get_place_num) |
| ialias (omp_get_partition_num_places) |
| ialias (omp_get_partition_place_nums) |