title: Fastest way to gather facts to fact cache
body: <p>I am trying to make Ansible work with --limit and to do that I need facts about other hosts, which I am caching with fact_caching. What command should I run so that it simply gathers all the facts on all the hosts and caches them, without running any tasks? Something like the <a href="http://docs.ansible.com/ansible/setup_module.html" rel="noreferrer">setup module</a> would be perfect if it cached the facts it gathered, but it seems like it does not.</p>