.. _application: .. raw:: html

Describing your Application *************************** Every SimGrid simulation entails a distributed application, that virtually executes on the simulated platform. This application can be either an existing MPI program (if you use the SMPI interface), or a program specifically written to execute within SimGrid, using one of the dedicated APIs. .. include:: app_s4u.rst .. include:: app_smpi.rst .. include:: app_legacy.rst