2 Runtime Library Routines
2.1 omp_get_active_level() - Number of parallel regions
2.2 omp_get_ancestor_thread_num() - Ancestor thread ID
2.3 omp_get_dynamic() - Dynamic teams setting
2.4 omp_get_level() - Obtain the current nesting level
2.5 omp_get_max_active_levels() - Maximum number of active regions
2.6 omp_get_max_threads() - Maximum number of threads of parallel region
2.7 omp_get_nested() - Nested parallel regions
2.8 omp_get_num_procs() - Number of processors online
2.9 omp_get_num_threads() - Size of the active team
2.10 omp_get_schedule() - Obtain the runtime scheduling method
2.11 omp_get_team_size() - Number of threads in a team
2.12 omp_get_thread_limit() - Maximum number of threads
2.13 omp_get_thread_num() - Current thread ID
2.14 omp_in_parallel() - Whether a parallel region is active
2.15 omp_in_final() - Whether in final or included task region
2.16 omp_set_dynamic() - Enable/disable dynamic teams
2.17 omp_set_max_active_levels() - Limits the number of active parallel regions
2.18 omp_set_nested() - Enable/disable nested parallel regions
2.19 omp_set_num_threads() - Set upper team size limit
2.20 omp_set_schedule() - Set the runtime scheduling method
2.21 omp_init_lock() - Initialize simple lock
2.22 omp_set_lock() - Wait for and set simple lock
2.23 omp_test_lock() - Test and set simple lock if available
2.24 omp_unset_lock() - Unset simple lock
2.25 omp_destroy_lock() - Destroy simple lock
2.26 omp_init_nest_lock() - Initialize nested lock
2.27 omp_set_nest_lock() - Wait for and set nested lock
2.28 omp_test_nest_lock() - Test and set nested lock if available
2.29 omp_unset_nest_lock() - Unset nested lock
2.30 omp_destroy_nest_lock() - Destroy nested lock
2.31 omp_get_wtick() - Get timer precision
2.32 omp_get_wtime() - Elapsed wall clock time
3 Environment Variables
3.1 OMP_DYNAMIC - Dynamic adjustment of threads
3.2 OMP_MAX_ACTIVE_LEVELS - Set the maximum number of nested parallel regions
3.3 OMP_NESTED - Nested parallel regions
3.4 OMP_NUM_THREADS - Specifies the number of threads to use
3.5 OMP_SCHEDULE - How threads are scheduled
3.6 OMP_STACKSIZE - Set default thread stack size
3.7 OMP_THREAD_LIMIT - Set the maximum number of threads
3.8 OMP_WAIT_POLICY - How waiting threads are handled
3.9 OMP_PROC_BIND - Whether theads may be moved between CPUs
3.10 GOMP_CPU_AFFINITY - Bind threads to specific CPUs
3.11 GOMP_STACKSIZE - Set default thread stack size
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