Institute of Electrical & Electronic Engineers
It is expected that (single chip) multiprocessors will increasingly be deployed to realize high-performance embedded systems. Because in current technologies the dynamic power consumption dominates the static power dissipation, an effective technique to reduce energy consumption is to employ as many processors as possible in order to finish the tasks as early as possible, and to use the remaining time before the deadline (the slack) to apply voltage scaling. The authors refer to this heuristic as Schedule and Stretch (S&S). However, since the static power consumption is expected to become more significant, this approach will no longer be efficient when leakage current is taken into account.