Show how define a set of pstatesfor a host in the XML, and how the current
pstate can be accessed/changed with @ref simgrid::s4u::Host::getPstateSpeed and @ref simgrid::s4u::Host::setPstate.
- TODO: add an example about parallel executions.
+ - <b>Parallel tasks</b>
+ @ref examples/s4u/exec-ptasks/s4u-exec-ptasks.cpp\n
+ These objects are convenient abstractions of parallel
+ computational kernels that span over several machines.
@subsection s4u_ex_activity_io I/O on disks and files
