
236 Communication Architectures for SoC
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Network power consumption (W)
Injection rate
UR hier
UR hierRF-100%
UR hierRF-50%
LC hier
LC hierRF-100%
LC hierRF-50%
FIGURE 6.37
Network power consumption of Hier+RF for a 64-node network.
32 routers in the global network. Due to the small size, there is minimal per-
formance impact of RF for the LC traffic case as seen in Figure 6.36. For the
UR case, we find that 100% usage gives throughput and latency benefits. For
256 nodes, the RF-enhanced topology at 100% usage does as well as the base
case under LC traffic pattern (see Figure 6.38). This means that RF decreased
the delay variability in the global net ...