Bring your towel and join one of the fastest growing data communities. Welcome to our second-generation open source orchestration platform, a completely rethought approach to dataflow automation.

Prefect Community

Hi, I have a flow that uses several `FlowRunTask` and run them concurrently using local dask executor. (The flow code is in the first comment).
My question is, is there another way to make the `FlowRunTask` ’s run concurrently without using dask? Thanks!

```
a_flow = FlowRunTask(flow_name='a flow', project_name='test', wait=True, name='a flow - sub_flow_of_abcd')
b_flow = FlowRunTask(flow_name='b flow', project_name='test', wait=True, name='b flow - sub_flow_of_abcd')
c_flow = FlowRunTask(flow_name='c flow', project_name='test', wait=True, name='c flow - sub_flow_of_abcd')
d_flow = FlowRunTask(flow_name='d flow', project_name='test', wait=True, name='d flow - sub_flow_of_abcd')

with Flow(name="abcd scenario test",
          environment=LocalEnvironment(executor=DaskExecutor()),
          storage=Docker(base_image='prefect_image',
                         image_tag='latest',
                         local_image=True)) as flow:
    c = c_flow(upstream_tasks=[a_flow, b_flow])
    d = d_flow(upstream_tasks=[a_flow])```

Hi <@U01BALJA0F2> - unfortunately not, Dask is the way that Prefect handles task parallelism.

For your use case, I recommend using the `LocalDaskExecutor()` instead, as its much lighter weight.

This will run all tasks in the same process using threads, avoiding the extra machinery that the `DaskExecutor` requires.