An important feature of all processor networks supported by Diamond is that they are connected. Every processor in the network can be reached by following wires through other processors; no processor is isolated. Because of this, it is possible to identify each participating processor uniquely by choosing one to start from and giving a sequence of links to follow.
In the example below, starting with P1, we can locate P5 by following link 1 and then link 3.
The starting point in every Diamond application is a root processor. This can be either a processor explicitly called root or a processor declared with an arbitrary name and given the qualifier root. The root acts as the base of the network and is usually connected to a host PC.