FUNCTIONS_OPENMP
  Demonstrate a few of OpenMP's library functions.

  While NOT in a parallel region:

  omp_get_max_threads ( ) = 8
  omp_get_num_threads ( ) = 1
  omp_get_thread_num ( ) =  0
  omp_get_num_procs ( )   = 8
  omp_get_wtime ( ) =       13216.8

  While NOT in a parallel region,
  after calling omp_set_num_threads ( 5 ):

  omp_get_max_threads ( ) = 5
  omp_get_num_threads ( ) = 1
  omp_get_thread_num ( ) =  0
  omp_get_num_procs ( )   = 8
  omp_get_wtime ( ) =       13216.8

  Enter a parallel region.

  after calling omp_set_num_threads ( 3 ):


  Enter a parallel region.
  Enter a parallel region.
  after calling omp_set_num_threads ( 3 ):

  omp_get_thread_num ( ) =  2

  While in a parallel region,
  printing from a single thread:

  omp_get_max_threads ( ) = 3
  omp_get_num_threads ( ) = 3
  omp_get_thread_num ( ) =  2
  after calling omp_set_num_threads ( 3 ):

  omp_get_thread_num ( ) =  1
  omp_get_thread_num ( ) =  0
  omp_get_num_procs ( )   = 8
  omp_get_wtime ( ) =       13216.8

  omp_get_wtime estimates duration of sleep(5) as 5.00022 seconds.

FUNCTIONS_OPENMP
  Normal end of execution.