Utility-Cost Tradeoffs A single NEC SX-9 vector processor unit (VPU) has a peak arithmetic performance of 102.4 GFs/s. The memory system supplies a peak memory bandwidth of 162 GBs/s. The VPU dissipates 40 W, while the memory system dissipates 55 W. Together, both components dissipate 95 W. Every program has an arithmetic intensity (AI), measured in flops/byte, that indicates how much performance is achievable for a given bandwidth. The equation is: achievable GFs/s = min{AI*BW,peak GFs/s}. What is the minimum AI that achieves peak arithmetic performance on an SX-9 VPU? AI = _____ flops/byte And what is the power efficiency of this computer system at peak performance? PE = _____ GFs/s/W