las3_pub / predictable_parallel_patterns

Basic profiling works. Next steps are to 'refine' the interface, i.e. allow to disable parts of the profiling and better output for some stats. Maybe look at storing/loading the DAG's with stats to/from disk.

Add key-points required to capture an execution DAG. Currently all data is in-memory and printed out. In future work it would be good to store the DAG's and/or process them further.