Another vote for Parallel but I also wanted to mention using Redis for its atomic operations. It's very straight forward to push a list of things to do onto a

Another vote for Parallel but I also wanted to mention using Redis for its atomic operations. It's very straight forward to push a list of things to do onto a redis queue and then have your scripts run via parallel pop one piece of work and then push the work item to either a success or failure queue. Unfortunately I no longer have a working example but as I recall it wasn't difficult to keep n number of scripts running and popping entries until the queue emptied.