Optimizing jobs that runs heavy processes

[arthur-er]

I have a problem where each user can spin up a heavy process (there can only be a process per user at a time, i'm using redlock to guarantee that) and after that send any number of tasks, only the process startup is costly then the task processing is fast.

Currently, each job runs the heavy process, do the small task and close the process, but I wanted to know if there is a way to reutilize the heavy process across some jobs and send all jobs of that user into the worker that has that process open