hi, i am new to prefect, i was able to run task in parallel using: flow.run(executor=LocalDaskExecutor()), but calling run() is blocking tell all tasks are finished, possible to call run in non-blocking way? so the run()-call returns immediately

No it’s not because Prefect 1 has a

gather

call in the code to execute tasks immediately so they are synchronous

thanks for the answer , if i move to cloud, what will be different then?

The agent will make the new process and you can have concurrent flows. It won’t be blocking

thanks..  i will try it..