+@section s4u_ex_async Asynchronous communications
+
+ - <b>Basic asynchronous communications</b>.
+ @ref examples/s4u/async-wait/s4u-async-wait.cpp \n
+ Illustrates how to have non-blocking communications, that are
+ communications running in the background leaving the process free
+ to do something else during their completion. The main functions
+ involved are @ref simgrid::s4u::Comm::put_async and
+ @ref simgrid::s4u::Comm::wait().