We made Amdahl's Law and Rent's Rule understood and proposed one novel model to describe the multicore CPU speedup based on evaluating the known speedup models.Our methodology starts with traditional Amdahl's Law,in the steps of fixed-size,fixed-time,memory-bounded,and interconnection-bounded.Also the NoC-bandwidth and max-temperature of multicore features are discussed.The results showed,fixed-time model and memory-bounded model grasp speedups' up-limits,our model touches the middle gap between formers and Amdahl's Law,at high parallel ratio,and NoC bandwidth and Max temperature show that homogeneous multicore architectures long for higher ratio of parallelization.
LI Wen-shi;YAO Zong-bao.
Multicore Architecture Speedup Computation Based on Amdahl's Law and Rent's Rule[J]. Acta Electronica Sinica, 2012, 40(2): 230-234. https://doi.org/10.3969/j.issn.0372-2112.2012.02.004