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A. Rahmani, H. Tenhunen, P. Liljeberg, A. Weldezion, S. Kanduru, J. Plosila, M. Haghbayan, A. Jantsch:
"Dynamic Power Management for Many-Core Platforms in the Dark Silicon Era: A Multi-Objective Control Approach";
Vortrag: International Symposium on Low Power Electronics and Design (ISLPED), Rom, Italy; 07/2015; in: "Proceedings of the International Symposium on Low Power Electronics and Design", (2015), ISBN: 978-1-4673-8008-9; 6 S.

ower management of NoC-based many-
core systems with runtime application mapping becomes
more challenging in the dark silicon era. It necessitates
a multi-objective control approach to consider an upper
limit on total power consumption, dynamic behaviour of
workloads, processing elements utilization, per-core power
consumption, and load on network-on-chip. In this paper,
we propose a multi-objective dynamic power management
method that simultaneously considers all of these parame-
ters. Fine-grained voltage and frequency scaling, including
near-threshold operation, and per-core power gating are
utilized to optimize the performance. In addition, a dis-
turbance rejecter is designed that proactively scales down
activity in running applications when a new application
commences execution, to prevent sharp power budget vi-
olations. Simulations of dynamic workloads and mixed
time-critical application pro les show that our method is
effective in honoring the power budget while considerably
boosting the system throughput and reducing power bud-
get violation, compared to the state-of-the-art power man-
agement policies.

ark Silicon, Power Management, NoC- based Manycore Systems, Runtime Mapping

http://dx.doi.org/10.1109/ISLPED.2015.7273517