The architecture implemented at the moment is showing some issues that are non trivial to fix:

• pickling,
• monitoring,
• performance
• in general seems to hard to grasp for the users
• intermittent test failures due to syncing issues

Need to:

• "Foreground" fully functional with live plot
• No multiprocessing as default, keep in the code as "experimental"

And then carefully design how we want to do concurrency and parallelism:

• python or not python ?
  • if not python ØMQ, erlang, f# backends
• servers running on fridges and instruments

Notes:

• @akhmerov and @jbweston from kwant <3 concurrent.futures.Executor