To build a new interconnection network, one has to create a new directory
for that interconnection network and then create the routing strategy,
topology, input virtual channel selection and output virtual channel selection
strategies for that network. If existing strategies could be used, then
reuse them, but if new ones are required, one has to write these new
strategies in the corresponding directories for routing, topology, etc.
The InitNetwork function must be provided in InitNetwork.C for this
new interconnection network. It builds up all the nodes and
switches and NICs and channels that form the network. Look at one
of the existing interconnection topologies for reference.