+* BUG
+ ./loba cluster1000.xml -N64 -L100 -i100 -a fair -T hcube
+ leads to deadlock
+
+* 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.
+