This paper considers the problem of temperature regulation in multicore processors by dynamic voltage-frequency scaling. We propose a feedback law that is based on an integral controller with adjustable gain, designed for fast tracking convergence in the face of model uncertainties, time-varying plants, and tight computing-timing constraints. Moreover, unlike prior works we consider a nonlinear, time-varying plant model that trades off precision for simple and efficient on-line computations. Cycle-level, full system simulator implementation and evaluation illustrates fast and accurate tracking of given temperature reference values, and compares favorably with fixed-gain controllers.
|Title of host publication||2015 IEEE Conference on Control and Applications, CCA 2015 - Proceedings|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|Number of pages||6|
|Publication status||Published - 2015 Nov 4|
|Event||IEEE Conference on Control and Applications, CCA 2015 - Sydney, Australia|
Duration: 2015 Sep 21 → 2015 Sep 23
|Name||2015 IEEE Conference on Control and Applications, CCA 2015 - Proceedings|
|Other||IEEE Conference on Control and Applications, CCA 2015|
|Period||15/9/21 → 15/9/23|
Bibliographical notePublisher Copyright:
© 2015 IEEE.
All Science Journal Classification (ASJC) codes
- Control and Systems Engineering