Observation from lecture: making use of SIMD instructions is energy-efficient because we are amortizing the cost of fetching+decoding each instruction across all the parallel data units
awu
SIMD with low vector utilization would be inefficient though, given that more register is needed consistently. See https://en.wikipedia.org/wiki/SIMD#Disadvantages
Observation from lecture: making use of SIMD instructions is energy-efficient because we are amortizing the cost of fetching+decoding each instruction across all the parallel data units