abstract algorithms in the domains of Cloud, P2P, HPC, IoT, and similar
settings.
-Currently (v3.21), S4U is definitely the way to go for long-term
+Since v3.20 (June 2018), S4U is definitely the way to go for long-term
projects. It is feature complete, but may still evolve slightly in the
future releases. It can already be used to do everything that can be
done in SimGrid, but you may have to adapt your code in future
Each actor is located on a simulated |API_s4u_Host|_. Each host is located
itself in a |API_s4u_NetZone|_, that knows the networking path between one
resource to another. Each NetZone is included in another one, forming
-a tree of NetZones which root zone contains the whole platform.
+a tree of NetZones which root zone contains the whole platform. The
+actors can also be located on a |API_s4U_VirtualMachine|_ that may
+restrict the activities it contains to a limited amount of cores.
+Virtual machines can also be migrated between hosts.
The :ref:`simgrid::s4u::this_actor <API_s4u_this_actor>` namespace
provides many helper functions to simplify the code of actors.
.. |API_s4u_Storages| replace:: **Storages**
.. _API_s4u_Storages: #s4u-storage
-.. |API_s4u_VirtualMachines| replace:: **VirtualMachines**
-.. _API_s4u_VirtualMachines: #s4u-virtualmachine
+.. |API_s4u_VirtualMachine| replace:: **VirtualMachines**
.. |API_s4u_Host| replace:: **Host**
will already be there on the receiver host when the receiver actor
posts its :cpp:func:`get() <simgrid::s4u::Mailbox::get()>`
+Note that being permanent receivers of a mailbox prevents actors to be
+garbage-collected. If your simulation creates many short-lived actors
+that marked as permanent receiver, you should call
+``mailbox->set_receiver(nullptr)`` by the end of the actors so that their
+memory gets properly reclaimed. This call should be at the end of the
+actor's function, not in a on_exit callback.
+
Memory Management
*****************
.. doxygentypedef:: ActorPtr
+.. doxygentypedef:: aid_t
+
.. doxygenclass:: simgrid::s4u::Actor
:members:
:protected-members: