+* review receive with timeout.
+
* verify bookkeeping version.
+* add several metrics
+ - flops (total, avg, stddev)
+ - message exchanges (number, volume)
+
+* add options -j/-J : minimum number of iterations ?
+
* add a variant to (not) change neighbor load information at send.
* implement loba_* algorithms (start with some trivial one)
-* add some statistics about load (im)balance at the end of the simulation?
-
* for automatic process topology,
-> implement some random initial distribution of load
