- - Simulating algorithms with the legacy interface: :ref:`MSG for distributed
- algorithms <MSG_doc>` (in :ref:`C <MSG_doc>`). SimGrid was founded in 1998, and many interfaces were proposed
- along the way. MSG (introduced around 2002) is still present in SimGrid. It
- does not evolve anymore, but given its popularity, it will not be removed
- until at least 2020. That being said, our goal is to make S4U so useful that
- this legacy API becomes useless and obsolete.
- - We are currently working on the ability to modify any existing