Not automatically, but if you connect multiple nodes into a cluster, when you spawn a process you can select which node it will be spawned on. Additionally, once the nodes and processes are running you can send messages across nodes to different processes using the same method you use for processes on a single node. [0] Shows an example of communication across nodes, as well as some preliminary material that would be helpful if you don't know Erlang.

I mostly learned Erlang from Joe Armstrong's book [1], though the first edition. I'm confident the second edition is as good as the first. Learn You Some Erlang [2] is a great free (also available for purchase, but free online) book.

[0] https://erlang.org/doc/getting_started/conc_prog.html

[1] https://pragprog.com/titles/jaerlang2/programming-erlang-2nd...

[2] https://learnyousomeerlang.com/