-* Try to optimize communications when bookkeeping.
- Add a 'credit' counter for each neighbor.
- Do not send more real_load than (debt - credit).
+* Remove usage of opt::option_x in loba_besteffort.cpp and loba_2besteffort.cpp
+ Use -k instead (done). Remove hack marked "FIXME" in opt::parse_args().
* Support heterogeneous platforms?
Not sure yet.