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4th Workshop on Power-Aware Computing and Systems

HotPower'11 will be held immediately before the 23nd ACM Symposium on Operating Systems Principles (SOSP'11).

Important Dates

  • Paper submissions due: Extended to Fri, Jun 17, 2011, 11:59PM EDT
  • Notification to authors: Mon, Jul 25, 2011
  • Camera ready due: Wed, Aug 3, 2011
  • Workshop: October 23, 2011


Power has become a central issue in the design of modern computer systems.  It affects a wide variety of systems, including mobile devices, embedded networks, and data centers.  However, we do not yet fully understand the tradeoffs between energy, performance, cost, and other metrics in these environments.  This limits our ability to improve energy-efficiency without violating performance requirements and physical constraints (e.g., battery or cooling capacity).
HotPower provides a forum in which to present the latest research and to debate directions, challenges, and novel ideas about building energy-efficient computing systems.  In addition, researchers coming to these issues from fields such as computer architecture, systems and networking, measurement and modeling, language and compiler design, mobile computing, and embedded systems will have the opportunity to interact with one another, explore cross-cutting ideas, and develop new perspectives on the problem domain.


Topics of interest in energy-efficient computing include but are not limited to:

  • Instrumentation, measurement, and measurement studies
  • Energy and performance profiling, accounting
  • Metrics, benchmarks, interfaces
  • Principles of power management
  • Performance, energy and other resource trade-offs, energy complexity
  • Compiler optimization, application design
  • System-level optimization, cross-layer coordination
  • Load and resource modeling, management
  • Scheduling, run-time adaptation, feedback control
  • Processor, network, storage, hardware components and architecture
  • Reliability and power management
  • Application to multi-core, data center, and embedded systems
  • Green energy sources and their implications

The workshop encourages submissions of early-stage research and novel ideas that have a high likelihood of generating interesting discussion.



The main program consists of a keynote + ten talks (20 min presentation + 10 min Q&A)

8:30 - 8:45 am -- Opening

8:45 - 10:00 am -- Keynote Address

"Societal-Scale Energy Awareness: Challenges and Opportunities", Randy H. Katz (University of California, Berkeley)

10:00 - 10:30 am -- Break

10:30 am - 12:00 pm -- Energy Efficiency Mechanisms and Techniques

    • "The Case for Sleep States in Servers"Anshul Gandhi (Carnegie Mellon University), Mor Harchol-Balter (Carnegie Mellon University), Michael A. Kozuch (Intel Labs Pittsburgh) 
    • "Energy-aware Writes to Non-volatile Main Memory", Jie Chen (George Washington Univ), Ron C. Chiang (George Washington Univ), H Howie Huang (George Washington Univ), Guru Venkataramani (George Washington Univ) 
    • "SEEP: Exploiting Symbolic Execution for Energy-Aware Programming", Timo Hönig (Friedrich–Alexander University Erlangen–Nuremberg), Christopher Eibel (Friedrich–Alexander University Erlangen–Nuremberg), Rüdiger Kapitza (Friedrich–Alexander University Erlangen–Nuremberg), Wolfgang Schröder-Preikschat (Friedrich–Alexander University Erlangen–Nuremberg)

    12:00 - 1:30 pm -- Lunch

    1:30 - 3:00 pm -- Data Centers

    • "Utilizing Green Energy Prediction to Schedule Mixed Batch And Service Jobs in Data Centers", Baris Aksanli (UC San Diego), Jagannathan Venkatesh (UC San Diego), Liuyi Zhang (UC San Diego), Tajana Rosing (UC San Diego)
    • "Towards Realizing a Low Cost and Highly Available Datacenter Power Infrastructure",  Sriram govindan (The Pennsylvania State University), Di Wang (The Pennsylvania State University), Lydia chen (IBM Research Zurich), Anand Sivasubramaniam (The Pennsylvania State University), Bhuvan Urgaonkar (The Pennsylvania State University) 
    • "Leveraging Thermal Storage to Cut the Electricity Bill for Datacenter Cooling", Yefu Wang (University of Tennessee, Knoxville), Xiaorui Wang (University of Tennessee, Knoxville), Yanwei Zhang (University of Tennessee, Knoxville) 

    3:00 - 3:30 pm -- Break

    3:30 - 4:30 pm -- Energy Efficiency Characterizations and Tools I

    • "The Interplay of Software Bloat, Hardware Energy Proportionality and System Bottlenecks"Suparna Bhattacharya (Indian Institute of Science), Karthick Rajamani (IBM Research), K. Gopinath (Indian Institute of Science), Manish Gupta (IBM Research)
    • "Power-Efficient Networking for Balanced System Designs: Early Experiences with PCIe"John Byrne (HP Labs), Jichuan Chang (HP Labs), Kevin T. Lim (HP Labs), Laura Ramirez (HP Labs), Parthasarathy Ranganathan (HP Labs)

    4:30 - 4:45 pm -- Short Break

    4:45 - 5:45 pm -- Energy Efficiency Characterizations and Tools II

    • "Simultaneous Multithreading on x86_64 Systems: An Energy Efficiency Evaluation", Robert Schöne (Technische Universität Dresden), Daniel Hackenberg (Technische Universität Dresden), Daniel Molka (Technische Universität Dresden) 
    • "Ekho: Bridging the Gap Between Simulation and Reality in Tiny Energy-Harvesting Sensors", Hong Zhang (UMass Amherst), Mastooreh Salajegheh (UMass Amherst), Kevin Fu (UMass Amherst), Jacob Sorber (Dartmouth College)

    5:45 - 6:00 pm -- Closing

    Program Chairs

    • Ricardo Bianchini (Rutgers University)
    • Prabal Dutta (University of Michigan)

    Program Committee

    • Yuvraj Agarwal (UC San Diego)
    • Frank Bellosa (Karlsruhe Institute of Technology)
    • John Carter (IBM Research)
    • Rodrigo Fonseca (Brown University)
    • Aman Kansal (Microsoft Research)
    • Randy Katz (UC Berkeley)
    • Philip Levis (Stanford University)
    • Margaret Martonosi (Princeton University)
    • Karsten Schwan (Georgia Tech)
    • Thomas Wenisch (University of Michigan)
    • Feng Zhao (Microsoft Research)
    • Lin Zhong (Rice University)

    Steering Committee Chair

    • Feng Zhao (Microsoft Research)

    Submission Instructions

    Submitted papers must be no longer than 5 single-spaced 8.5" x 11" pages, including figures, tables, and references; two-column format, using 10-point type on 12-point (single-spaced) leading; and a text block 6.5" wide x 9" deep.  Author names and affiliations should appear on the title page.  The class file sig-alternate-hotpower11.cls meets these formatting guidelines. Papers must be in PDF format and must be submitted via the Web submission form:

    Simultaneous submission of the same work to multiple venues, submission of previously published work, or plagiarism constitutes dishonesty or fraud.  Papers meeting any of these criteria will be rejected. Authors uncertain whether their submission meets these guidelines should contact the program chairs.

    Papers accompanied by nondisclosure agreement forms will not be considered.  Accepted submissions will be treated as confidential prior to publication on the HotPower'11 Web site; rejected submissions will be permanently treated as confidential.


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