Evaluating the impact of job scheduling and power management on processor lifetime for chip multiprocessors
Ayse Kivilcim Coskun, Richard D. Strong, Dean Michael Tullsen, Tajana Rosing · 2009
Temperature-induced reliability issues are among the major chal-lenges for multicore architectures. Thermal hot spots and ther-mal cycles combine to degrade reliability. This research presents new reliability-aware job scheduling and power management ap-proaches for chip multiprocessors. Accurate evaluation of these policies requires a novel simulation framework that can capture architecture-level effects over tens of seconds or longer, while also capturing thermal interactions among cores resulting from dynamic scheduling policies. Using this framework and a set of new thermal management policies, this work shows that techniques that offer similar performance, energy, and even peak temperature can differ signicantly in their effects on the expected processor lifetime.