Some network switches don't allow the connected computers to set their own static IP address if they are using a dynamic configuration, so in that case we should reconfigure the switch and set up the static IP addresses of the nodes in the switch ourselves. Stable operation of the supercomputer requires that the IP address in the Pi nodes and on the switch remain unchanged during normal operation. Otherwise, the nodes will be unable to communicate with each other, thus making the supercomputer's performance less than optimal. This configuration procedure is accompanied by the setup of the hosts file.
In this chapter, you will learn how to do the following:
Configure the static IP address of the master and slave1 Pi
Configure the static IP address of the network switch
Set up the
hostsfile