As depicted by the following schema, the SimGrid toolkit is basically
three-layered.
+
+\htmlonly
+<center>
+\endhtmlonly
+\htmlinclude simgrid_modules.map
\htmlonly
-<center><img align=center src="simgrid_modules.jpg" alt="SimGrid"><br>
-<b>Relationships between the SimGrid components</b>
+<br><b>Relationships between the SimGrid components</b>
</center>
\endhtmlonly
