Is it possible to control how Prefect traverse the DAG? e.g. depth first? An example use case would be, I would like to prioritise all child mapped tasks for a give parent to complete first, e.g. if I had 10 tasks each map out to 10 child tasks, and I had 10workers, I would like it to complete one parent task and all 10 child mapped tasks at a time, before moving onto next, rather than start a child of each parent task, if that make sense?

thanks for raising this. mapping for 2.0 is on the roadmap and would likely be configurable, as you mentioned (breadth vs. depth first)