init_dist_fn_level_1 Subroutine

  subroutine init_dist_fn_level_1
    if (initialized_dist_fn_level_1) return
    initialized_dist_fn_level_1 = .true.

    call init_dist_fn_arrays
    call init_vperp2
    call init_vpa_vpac
    call init_bc
  end subroutine init_dist_fn_level_1