GNU libgomp: OMP_THREAD_LIMIT

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### 3.13 `OMP_THREAD_LIMIT` – Set the maximum number of threads

Description:

  Specifies the number of threads to use for the whole program. The value of this variable shall be a positive integer. If undefined, the number of threads is not limited.

See also:

  OMP_NUM_THREADS, omp_get_thread_limit

Reference:

  OpenMP specification v4.5, Section 4.10