noraabiakar authored 6 years ago and Benjamin Cumming committed 6 years ago

- Task system is no longer a single system private to the implementation of the threading backend and used everywhere. A separate task_system can be used (with a specified number of threads) for every simulation.
- arb::execution_context is the interface to task_system  and the previously defined distributed_context
- TBB and serial support has been removed. Cthreads is the only threading backend available.