Process model
=============
-Each process is made of 3 threads: a receiver thread, a computing
-thread, and a load-balancer thread.
+Each process is made of 3 threads: a receiving thread, a computing
+thread, and a load-balancing thread.
-* Receiver thread
- ---------------
+* Receiving thread
+ ----------------
Loop
| wait for a message to come, either on data channel, or on ctrl channel