[SIC\]SIC PARALLEL [Nthread]
Check or set the number of threads for parallel executions. Nthread is
either an integer indicating the desired number of threads, or "*" to
use all the cores of the current machine.
The current and maximum number of threads are visible in variables
SIC%OPENMP%NTHREADS and SIC%OPENMP%MTHREADS respectively.
Only active when compiled with Open-MP mode.