Guanglei Liu

guanglei pic

Personal Web Page:
Research Name:
  • Thermal/power-aware computing, Embedded Real-time operating system design
  • Very-Large-Scaled-Integrated (VLSI), System-on-a-Chip(SoC)
Abstract Research: Fueled by increasing human appetite for high computing performance, semiconductor technology has now marched into the deep sub-micron era. As transistor size keeps shrinking, more and more transistors are integrated into a single chip. This has increased tremendously the power consumption and heat generation of IC chips. The rapidly growing heat dissipation greatly increases the packaging/cooling costs, and adversely affects the performance and reliability of a computing system. In addition, it also reduces the processor’s life span and may even crash the entire computing system. Therefore, dynamic thermal management (DTM) is becoming a critical problem in modern computer system design.Extensive theoretical research has been conducted to study the DTM problem. However, most of them are based on theoretically idealized assumptions or simplified models. While these models and assumptions help to greatly simplify a complex problem and make it theoretically manageable, practical computer systems and applications must deal with many practical factors and details beyond these models or assumptions.The goal of my research was to develop a test platform that can be used to validate theoretical results on DTM under well-controlled conditions, to identify the limitations of existing theoretical results, and also to develop new and practical DTM techniques. Our research details the background and our research efforts in this endeavor. Specifically, in our research, we first developed a customized test platform based on an Intel desktop. We then tested a number of related theoretical works and examined their limitations under the practical hardware environment. With these limitations in mind, we developed a new reactive thermal management algorithm for single-core computing systems to optimize the throughput under a peak temperature constraint. We further extended our research to a multicore platform and developed an effective proactive DTM technique for throughput maximization on multicore processor based on task migration and dynamic voltage frequency scaling technique. The significance of our research lies in the fact that our research complements the current extensive theoretical research in dealing with increasingly critical thermal problems and enabling the continuous evolution of high performance computing systems. Research Slides
Publications: Books:“PracticalDynamic Thermal Management on Intel Desktop Computer” is published as a book by LAP, Lambert Academic Publishing, ISBN 978-3-659-25840-4. September 2012.Journals:

Guanglei Liu, M. Fan, G. Quan, M. Qiu “On-Line Predictive Thermal Management under Peak Temperature Constraints for Practical Multi-core Platforms”, Journal of Low Power Electronics (ASP 2012).


  • H. Huang, V. Chaturvedi, Guanglei Liu, G. Quan, ”Leakage Aware Scheduling On Maximum Temperature Minimization For Periodic Hard Real-Time Systems”, Journal of Low Power Electronics (ASP 2012).
Concentration: PhD in Electrical Engineering.Master in Computer Engineering.
Graduation date: 08/17/2012

Florida International University