Paper Info
Title
Temperature Aware Load Balancing for Parallel Applications: Preliminary Work
Abstract
Increasing number of cores and clock speeds on a smaller chip area implies more heat dissipation and an ever increasing heat density. This increased heat, in turn, leads to higher cooling cost and occurrence of hot spots. Effective use of dynamic voltage and frequency scaling (DVFS) can help us alleviate this problem. But there is an associated execution time penalty which can get amplified in parallel applications. In high performance computing, applications are typically tightly coupled and even a single overloaded core can adversely affect the execution time of the entire application. This makes load balancing of utmost value. In this paper, we outline a temperature aware load balancing scheme, which uses DVFS to keep core temperatures below a user-defined threshold with minimum timing penalty. While doing so, it also reduces the possibility of hot spots. We apply our scheme to three parallel applications with different energy consumption profiles. Results from our technique show that we save up to 14% in execution time and 12% in machine energy consumption as compared to frequency scaling without using load balancing. We are also able to bound the average temperature of all the cores and reduce the temperature deviation amongst the cores by a factor of 3.
Year
DOI
Venue
2011
10.1109/IPDPS.2011.231
IPDPS Workshops
Keywords
Field
DocType
temperature aware load,execution time,load balancing,parallel application,heat dissipation,core temperature,heat density,preliminary work,parallel applications,frequency scaling,average temperature,hot spot,associated execution time penalty,parallel processing,time frequency analysis,data centers,heating,high performance computing,resource allocation,load balance,chip
Load management,Supercomputer,Load balancing (computing),Simulation,Computer science,Voltage,Parallel computing,Chip,Resource allocation,Frequency scaling,Energy consumption
Conference
Citations 
PageRank 
References 
6
0.51
16
Authors
3
Name
Order
Citations
PageRank
Osman Sarood120110.14
Abhishek Gupta21410.61
Laxmikant V. Kale32871248.18