An empirical high level performance model for future many-cores
Surya Narayanan, Bharath Narasimha Swamy, André Seznec · 2015
Estimating the potential performance of parallel applications on the yet-to-be-designed future many cores is very speculative. The simple models proposed by Amdahl's law (fixed input problem size) or Gustafson's law (fixed number of cores) do not completely capture the scaling behaviour of a multi-threaded (MT) application leading to over estimation of performance in the many-core era. On the other hand, modeling many-core by simulation is too slow to study the applications performance.