1. Consider a CC-NUMA multiprocessor like that of Fig. 8-33 except with 512 nodes of 8 MB each. If the cache lines are 64 bytes, what is the percentage overhead for the di- rectories? Does increasing the number of nodes increase the overhead, decrease the overhead, or leave it unchanged?
2. What is the difference between NC-NUMA and CC-NUMA?
3. For each topology shown in Fig. 8-37, compute the diameter of the network.