!### macro's #####################################################
!
#define TRACEBACK write (gol,'("in ",a," (",a,", line",i5,")")') rname, __FILE__, __LINE__; call goErr
#define IF_NOTOK_RETURN(action) if (status/=0) then; TRACEBACK; action; return; end if
#define IF_ERROR_RETURN(action) if (status> 0) then; TRACEBACK; action; return; end if
!
#include "tm5.inc"
!
!#################################################################

module OMP_ParTools

  use GO,       only : gol, goPr, goErr
  use partools, only : isRoot

  public :: TM5_OMP_Init
  
  ! --- const --------------------------------------

  character(len=*), parameter  ::  mname = 'OMP_ParTools'
    
  ! --- var --------------------------------------
  
   integer            :: omp_mytask, omp_ntasks
   !$OMP THREADPRIVATE (omp_mytask, omp_ntasks)
  
contains

  ! ===================================================  

  subroutine TM5_OMP_Init ( status )

    implicit none    
    integer, intent(out) :: status
    
    ! Functions
    integer :: omp_get_thread_num, omp_get_num_threads

    !$OMP PARALLEL &
    !$OMP  default (none)

#ifdef _OPENMP
    omp_mytask = omp_get_thread_num()
    omp_ntasks = omp_get_num_threads()
    write(gol,*)'OMP. ntasks: ',omp_ntasks,', my_task: ',omp_mytask ; call goPr
#else
    omp_mytask = 0
    omp_ntasks = 1
    if(isRoot) then
       write(gol,*)'No OpenMP parallelization used' ; call goPr
    endif
#endif
    
    !$OMP END PARALLEL

    status = 0
    return
  end subroutine TM5_OMP_Init

end module OMP_ParTools