Characterizing Applications from Power Consumption: A Case Study for HPC Benchmarks

Author(s):  
Georges Da Costa ◽  
Jean-Marc Pierson
Keyword(s):  
2015 ◽  
Vol 25 (01) ◽  
pp. 1640005 ◽  
Author(s):  
Hitoshi Oi

Dynamic frequency scaling (DFS) is a feature commonly found in modern processors. It lowers the clock frequency of a core according to the load level and reduces the power consumption. In this paper, we present a case study of tuning DFS parameters on a platform with an AMD Phenom II X6 using the SPECjEnterprise2010 (jEnt10) and SPECjbb2005 (jbb05) as the workload. In jEnt10, a longer sampling period of core utilization (up to 1.5[Formula: see text]s) reduced the power by 6[Formula: see text]Watt at 25% load level. At 50% load level, combining it with an increased threshold level (98%) to switch the clock frequency further reduced the power consumption by up to 10[Formula: see text]Watt. In jbb05, stretching the sampling period was only effective up to 0.5[Formula: see text]s. The maximum reduction was observed at around 60% load level. Raising the threshold level was not effective for jbb05.


2019 ◽  
Vol 251 ◽  
pp. 113356
Author(s):  
Toni Tukia ◽  
Semen Uimonen ◽  
Marja-Liisa Siikonen ◽  
Claudio Donghi ◽  
Matti Lehtonen

2005 ◽  
Vol 2005 (5) ◽  
pp. 491-501 ◽  
Author(s):  
J. Flinn ◽  
P. T. Kabamba ◽  
W.-C. Lin ◽  
S. M. Meerkov ◽  
C. Y. Tang

This paper addresses the issue of battery power conservation in wireless personal area networks (WPANs). Specifically, we consider a WPAN, which contains a processor and a disk drive, and develop a collaborative power management technique, which minimizes the total WPAN power consumption. Our approach is based on the theory of rational behavior, which leads to a collaborative architecture where devices in the WPAN are equipped with cooperating rational controllers (RCs). Using, as an example, the Intel 80200 XScale processor and the Hitachi 1 GB microdrive, we show that collaborative power management using RCs offers substantial power saving compared to selfish operation, where each device attempts to minimize only its own power consumption.


2007 ◽  
Vol 3 (3) ◽  
pp. 168-173 ◽  
Author(s):  
Jalel Ktari ◽  
Mohamed Abid ◽  
Nathalie Julien ◽  
Johann Laurent
Keyword(s):  

Author(s):  
Alejandro Calderón ◽  
Alberto García ◽  
Félix García-Carballeira ◽  
Jesús Carretero ◽  
Javier Fernández
Keyword(s):  

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