Simulating MPI Applications
===========================
+.. warning:: This document is still in early stage. You can try to
+ take this tutorial, but should not be surprised if things fall short.
+ It will be completed for the next release, v3.22, released by the end
+ of 2018.
+
Discover SMPI
-------------
``mpiff``, or with ``smpicxx`` instead of ``mpicxx``. Then, the only
difference between the classical ``mpirun`` and the new ``smpirun`` is
that it requires a new parameter ``-platform`` with a file describing
-the virtual platform on which your application shall run.
+the simulated platform on which your application shall run.
Internally, all ranks of your application are executed as threads of a
single unix process. That's not a problem if your application has
------------------------
As a SMPI user, you are supposed to provide a description of your
-virtual platform, that is mostly a set of simulated hosts and network
+simulated platform, that is mostly a set of simulated hosts and network
links with some performance characteristics. SimGrid provides a plenty
of :ref:`documentation <platform>` and examples (in the
`examples/platforms <https://framagit.org/simgrid/simgrid/tree/master/examples/platforms>`_
