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2.9 omp_get_num_threads – Size of the active team

Returns the number of threads in the current team. In a sequential section of the program omp_get_num_threads returns 1.

The default team size may be initialized at startup by the OMP_NUM_THREADS environment variable. At runtime, the size of the current team may be set either by the NUM_THREADS clause or by omp_set_num_threads. If none of the above were used to define a specific value and OMP_DYNAMIC is disabled, one thread per CPU online is used.


Prototype: int omp_get_num_threads(void);


Interface: integer function omp_get_num_threads()

See also:
omp_get_max_threads, omp_set_num_threads, OMP_NUM_THREADS
OpenMP specifications v3.1, section 3.2.2.