Title :
Improvement of power-performance efficiency for high-end computing
Author :
Ge, Rong ; Feng, Xizhou ; Cameron, Kirk W.
Author_Institution :
Dept. of Comput. Sci. & Eng., South Carolina Univ., Columbia, SC, USA
Abstract :
Left unchecked, the fundamental drive to increase peak performance using tens of thousands of power hungry components will lead to intolerable operating costs and failure rates. Recent work has shown application characteristics of single-processor, memory-bound non-interactive codes and distributed, interactive Web services can be exploited to conserve power and energy with minimal performance impact. Our novel approach is to exploit parallel performance inefficiencies characteristic of non-interactive, distributed scientific applications, conserving energy using DVS (dynamic voltage scaling) without impacting time-to-solution (ITS) significantly, reducing cost and improving reliability. We present a software framework to analyze and optimize distributed power-performance using DVS implemented on a 16-node Centrino-based cluster. Using various DVS strategies we achieve application-dependent overall system energy savings as large as 25% with as little as 2% performance impact.
Keywords :
distributed processing; energy conservation; performance evaluation; power consumption; 16-node Centrino-based cluster; distributed interactive Web services; distributed power-performance efficiency; dynamic voltage scaling; energy conservation; high-end computing; power conservation; Application software; Costs; Dynamic voltage scaling; Energy consumption; High performance computing; Portable computers; Power engineering computing; Temperature; Voltage control; Web services;
Conference_Titel :
Parallel and Distributed Processing Symposium, 2005. Proceedings. 19th IEEE International
Print_ISBN :
0-7695-2312-9
DOI :
10.1109/IPDPS.2005.251