Left interval boundary.

Right interval boundary.

Number of subintervals.

Default: The minimum of interval size and the number of available threads (returned by omp_get_max_threads()).

Remarks: length and resize can be used to retrieve or change the number of subintervals later.

Tag to generically enable/disable parallelism. If its type is Parallel, the default number of subintervals is used. If it is Serial, only one subinterval is used.

Types: Parallel, Serial

Remarks: This tag should be used to write generic parallel algorithms and to switch between parallel and serial variants.