Energy Management via PI Control for Data Parallel Applications with Throughput Constraints - CEA - Commissariat à l’énergie atomique et aux énergies alternatives Access content directly
Conference Papers Year :

Energy Management via PI Control for Data Parallel Applications with Throughput Constraints

Abstract

This paper presents a new proportional-integral (PI) controller that sets the operating point of computing tiles in a system on chip (SoC). We address data-parallel applications with throughput constraints. The controller settings are investigated for application configurations with different QoS levels and different buffer sizes. The control method is evaluated on a test chip with four tiles executing a realistic HMAX object recognition application. Experimental results suggest that the proposed controller outperforms the state-of-the-art results: it attains, on average, 25% less number of frequency switches and has slightly higher energy savings. The reduction in number of frequency switches is important because it decreases the involved overhead. In addition, the PI controller meets the throughput constraint in cases where other approaches fail.
Fichier principal
Vignette du fichier
2015_patmos.pdf (1.1 Mo) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

cea-01235184 , version 1 (28-11-2015)

Identifiers

  • HAL Id : cea-01235184 , version 1

Cite

Anca Molnos, Warody Lombardi, Diego Puschini, Julien Mottin, Suzanne Lesecq, et al.. Energy Management via PI Control for Data Parallel Applications with Throughput Constraints. 25th International Workshop on Power and Timing Modeling, Optimization and Simulation (PATMOS), Sep 2015, Salvador, Bahia, Brazil. ⟨cea-01235184⟩
67 View
233 Download

Share

Gmail Facebook Twitter LinkedIn More