otsinitparallel  (3f)

starts slave threads

Syntax

  interface
     subroutine otsinitparallel ( nthreads, attr )
     !dec$ alias otsinitparallel, '_OtsInitParallel'
     integer nthreads
     integer ( kind=8 ) attr
     !dec$ attributes, value :: nthreads, attr
     end subroutine otsinitparallel
  end interface

Parameters

  nthreads  The total number of threads desired, including the master. If
            nthreads is zero, the number of threads is controlled by the
            environment variable MP_THREAD_COUNT (if it is defined as a
            nonzero number) or by the number of processors in the current
            process's processor set.

  attr      A pointer to a pthreads attribute block, which can be used to
            control the attributes of the slave threads. If it is zero, all
            defaults are used, except that the slaves' stack size in bytes
            can be set by the environment variable MP_STACK_SIZE.

Description

  This routine starts slave threads for parallel processing if they have not
  yet been started implicitly.

  Use this routine if you want to override the number of threads, override
  the thread attributes, or control when thread creation occurs (by default,
  it occurs at the first parallel region)

See Also

  processor_sets(3)