In the previous chapter, we built a cluster of Raspberry Pis that all interact with each other on a common network to accomplish a single task at a much greater speed than a single Raspberry Pi would perform. In fact, the MPI library is basically a networking library that delegates some computations to other processors connected in a network so that the master node doesn't have to deal with them. Now, in this chapter, we will learn about special networking concepts that power them kinds of cluster computers and in fact, the whole Internet. In this chapter, we will learn about:
Adding DHCP capabilities to our cluster
Adding a domain name system capability to our cluster
Writing a script for the autodetection of nodes
Writing scripts for the remote shutdown of cluster nodes