Before revision:  The  model also enables to derive predictions of supercomputer performance for the near future as well as provides hints for enhancing supercomputer components .
After revision:  The paper shows that the degradation of the efficiency of the parallelized sequential system is a natural consequence of the computing paradigm, rather than an engineering imperfectness. The workload is greatly responsible for wasting the energy as well as limiting the size and the type of tasks the supercomputers can run. Case studies provide insight how the different contributions compete for dominating the resulting payload performance of the computing system, and how enhancing the technology made the computing+communication the dominating contribution in defining the efficiency of supercomputers. The model also enables to derive predictions of supercomputer performance for the near future as well as provides hints for enhancing supercomputer components .