For distributed data stores only, you can execute Data Generation rules. However, to do this you must have a run-time knowledge base. A run-time knowledge base is tables in the same database instance that contains the target tables to be populated, or in a separate instance if you use a centralized run-time knowledge base. Details about run-time knowledge base creation, including a centralized run-time knowledge base, are described in the DBA Tasks for Extension Technology section of your Getting Started with Distributed Platforms documentation.
Once the run-time knowledge base is in place, the execution of rules is done by executing the dxestart command. See The dxestart Command topic in your Getting Started with Distributed Platforms documentation.