FLUXLINE calculations in parallel

I was parsing through the FLUXLINE calculation source file (flusec_t2d.f) and found the following comment:

!----------------------------------------------------------------------

!

!     PART II

!

!     ADD THE FLUXES (FLODEL FROM POSITIVE DEPTHS) FOR SEGMENTS

!

!     TODO WE SHOULD THINK ABOUT HOW WE CAN HANDLE THIS IN THE PARALLEL

!          CASE! IF A SEGMENT IS SHARED WE NEED THE HALF FLUX?

!

!----------------------------------------------------------------------

!

Does this mean it is only possible to calculate FLUXLINES on one processor? Or is this comment just some old relic that was forgotten to be deleted?

Thanks in advance.