The User Output option for junction box location enables you to write out data at the end of a run (advanced solution monitoring in CFX can be used in many cases to achieve tasks where user output would have previously been needed). For parallel runs, user output becomes more complicated. Unlike the automatic communication on the User Input call, the User Output location has no built-in facility for collecting data from follower processes, because it is difficult to anticipate which data will be output. With the exception of integrated quantities (which can be written out with the advanced monitoring facility), all data is stored locally on each partition.