\li GRAS (<em>not functionnal yet</em>) is an ongoing project to emulate virtual virtual platforms
through SURF. As a consequence a code developped using the GRAS
framework is able to run as well in the real-world as in the
- simulator. If you intend to use MSG in a very intensive way
- (e.g. for simulating a peer-to-peer environment), you may want to
- switch to GRAS.
+ simulator. The resulting code is very portable and highly interoperable while
+ remaining very efficient. Even if you do not plan to run your code for real,
+ you may want to switch to GRAS if you intend to use MSG in a very intensive way
+ (e.g. for simulating a peer-to-peer environment).
\li SMPI (<em>not functionnal yet</em>) is an ongoing project to enable MPI code to run on top of a
virtual platform through SURF. It follows the same principle as
the ones used in GRAS but is specific to MPI applications.
+Here is a figure the depicts the relation between those different modules.
+<center>
+\image html simgrid_modules.jpg
+</center>
+
+
The section \ref publications contains links to papers that provide
additional details on the project as well as validation and
experimental results.
