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| OPENMP API Specification: Version 5.0 November 2018

6.8  OMP_MAX_ACTIVE_LEVELS

The OMP_MAX_ACTIVE_LEVELS environment variable controls the maximum number of nested active parallel regions by setting the initial value of the max-active-levels-var ICV.

The value of this environment variable must be a non-negative integer. The behavior of the program is implementation defined if the requested value of OMP_MAX_ACTIVE_LEVELS is greater than the maximum number of nested active parallel levels an implementation can support, or if the value is not a non-negative integer.

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