Zhenhua Liu

ITRI-Rosenfeld Postdoctoral Fellow

Energy and Environmental Technology Division (EETD)

Lawrence Berkeley National Laboratory

Phone: 510-486-4638, Email: zhenhua[AT]caltech.edu, zliu[AT]lbl.gov

1 Cyclotron Road, Mail Stop 90R3111, Berkeley, CA 94720

  


About Me

I'm currently the ITRI-Rosenfeld Postdoctoral Fellow in the Energy and Environmental Technology Division (EETD) at Lawrence Berkeley National Laboratory. I received my Ph.D. degree in Computer Science at the California Institute of Technology, where I was co-advised by Prof. Adam Wierman and Prof. Steven Low. Before Caltech, I received my M.S. degree of Computer Science & Technology in 2009 and B.E. degree of Measurement & control in 2006, both from Tsinghua University with honor. I also received a dual degree of Economics from Peking University in 2009. Here is my Curriculum Vitae.

 

My main research interests include sustainable computing and networking systems, cloud platforms for big data applications and energy management, and renewable energy integration. I develop and apply techniques from distributed system, nonlinear optimization, game theory, and online algorithm for these systems. In particular, My research combines rigorous analysis and system design, and goes from theory, to prototype, and eventually to industry to make real impacts.


Representative Publications

§  Greening Geographical Load Balancing

Zhenhua Liu, Minghong Lin, Adam Wierman, Steven Low and Lachlan L. H. Andrew.

IEEE/ACM Transactions on Networking, 2014. Extension of a paper that appeared in ACM Sigmetrics, 2011.

IEEE Sustainable Computing Register “Pick of the Month” for the April 2013. 177 citations on Google scholar since Jun 2011.

§  Renewable and Cooling Aware Workload Management for Sustainable Data Centers

Zhenhua Liu, Yuan Chen, Cullen Bash, Adam Wierman, Daniel Gmach, Zhikui Wang, Manish Marwah and Chris Hyser.

ACM Sigmetrics, Jun 11–15, 2012, London, UK.

An extension of this work is used in the industry’s first Net-zero Energy Data Center by HP, which was named a 2013 Computerworld Honors Laureate. Made the most downloaded list of all Sigmetrics papers in ACM Digital Library in 2013.

§  Online Algorithms for Geographical Load Balancing

Minghong Lin, Zhenhua Liu, Adam Wierman and Lachlan L.H. Andrew.

International Green Computing Conference (IGCC), 2012.

Best paper award.

§  Data Center Demand Response: Avoiding the Coincident Peak via Workload Shifting and Local Generation.

Zhenhua Liu, Adam Wierman, Yuan Chen, Benjamin Razon and Niangjun Chen.

Performance Evaluation, vol. 70(10), Oct. 2013. Made the most downloaded list of all Performance Evaluation articles in 2013.

§  Pricing Data Center Demand Response.

Zhenhua Liu, Iris Liu, Steven Low and Adam Wierman.

ACM Sigmetrics, Jun 16–20, 2014, Austin, TX.

§  Opportunities and Challenges for Data Center Demand Response.

Adam Wierman, Zhenhua Liu, Iris Liu, and Hamed Mohsenian-Rad.

International Green Computing Conference (IGCC), Nov 3–5, 2014, Dallas, TX.


Honors and Awards (Selected)

  • Selected to participate 2nd Heidelberg Laureate Forum, Heidelberg, Germany
  • ITRI-Rosenfeld Postdoctoral Fellowship, Lawrence Berkeley National Laboratory
  • Chinese Government Award for Outstanding Students Abroad, 2014
  • Computerworld Honors Laureates for Net-zero Energy Data Center, 2013
  • Best paper award, International Green Computing Conference (IGCC), 2012
  • Best student paper award, ACM GreenMetrics, 2011
  • IEEE Sustainable Computing Register Pick of the Month, 2013
  • ACM Sigmetrics Travel Award, 2012, 2013
  • Resnick fellowship (finalist), 2011
  • Caltech Graduate Fellowship, 2009-2010
  • Excellent Master Thesis Award, Tsinghua University, 2009
  • TUNG Scholarship (Top Grade), Tsinghua University, 2008
  • Tsinghua Leadership Award Honorable Mention (nominated as the only candidate by department), 2006
  • Excellent Graduate of Tsinghua University, Tsinghua University, 2002–2006
  • TANG Scholarship (Top Grade), Tsinghua University, 2002, 2003, 2004, 2005
  • 6th China Synergy Program for Outstanding Youth, China Government (Only 3 out of 12000 undergraduates in Tsinghua University), 2004
  • Speech as the only Representative of Freshman at Tsinghua University Opening Ceremony, 2002

Industrial Interactions

  • HP Labs, Sustainable Ecosystems Research Group, June 2011–April 2013

·      Project: Sustainable Data Center

·      Impacts: I helped HP design and implement the industry’s first Net-Zero Energy Data Center, which has been widely reported in media and news, e.g. the Wall Street Journal, Com- puterworld, Wired, ZDNet, The Register, and was named a 2013 Computerworld Honors Laureate. Additionally, the results of my research provided insight and guidance into the design and management of HP EcoPOD data center, which has been used by many major IT companies, e.g., Facebook, eBay, Apple, and research institute, e.g., National Renewable Energy Laboratory, and won the 2013 InfoWorld Green IT Award.

·      Three patents filed.

  • HP Labs, Systems Research Lab, May 2013–September 2013

·      Project: Big Data Workloads with Emerging Hardware Systems

·      One patent filed.

  • Google, Infrastructure–storage, April 2012–June 2012

·      Project: Load Balancing in Next-generation Storage Systems

  • Collaboration with HP and Fort Collins Utilities, Colorado on data center demand response
  • Collaboration with Cloudera Inc. on big data workload and performance
  • Collaboration with Akamai Inc. on geographical load balancing

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Proceedings of Refereed Conference

§  Opportunities and Challenges for Data Center Demand Response.

Adam Wierman, Zhenhua Liu, Iris Liu, and Hamed Mohsenian-Rad.

International Green Computing Conference (IGCC), Nov 3–5, 2014, Dallas, TX.

§  Pricing Data Center Demand Response

Zhenhua Liu, Iris Liu, Steven Low and Adam Wierman.

ACM Sigmetrics, Jun 16–20, 2014, Austin, TX.

§  Data Center Demand Response: Avoiding the Coincident Peak via Workload Shifting and Local Generation

Zhenhua Liu, Adam Wierman, Yuan Chen, Benjamin Razon and Niangjun Chen.

IFIP Performance 2013. This work also appeared as an extended abstract at ACM Sigmetrics 2013. 28 citations on Google scholar since Oct 2013.

§  Renewable and Cooling Aware Workload Management for Sustainable Data Centers

Zhenhua Liu, Yuan Chen, Cullen Bash, Adam Wierman, Daniel Gmach, Zhikui Wang, Manish Marwah and Chris Hyser.

ACM Sigmetrics, Jun 11–15, 2012, London, UK.

An extension of this work is used in the industry’s first Net-zero Energy Data Center by HP, which was named a 2013 Computerworld Honors Laureate.  85 citations on Google scholar since Jun 2012.

§  Online Algorithms for Geographical Load Balancing

Minghong Lin, Zhenhua Liu, Adam Wierman and Lachlan L.H. Andrew.

International Green Computing Conference (IGCC), 2012.

Best paper award. 57 citations on Google scholar since Jun 2012.

§  Algorithms for Dynamic Capacity Provisioning

Lachlan L. H. Andrew, Minghong Lin, Zhenhua Liu and Adam Wierman (alphabetical order).

Conference on Optical Internet (COIN), 2012.

§  Towards the Design and Operation of Net-zero Energy Data Centers

Martin Arlitt, Cullen Bash, Sergey Blagodurov, Yuan Chen, Tom Christian, Daniel Gmach, Chris Hyser, Niru Kumari, Zhenhua Liu, Manish Marwah, Alan McReynolds, Chandrakant Patel, Amip Shah, Zhikui Wang and Rongliang Zhou (alphabetical order).

13th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems (ITherm), 2012.

§  Geographical Load Balancing with Renewables

Zhenhua Liu, Minghong Lin, Adam Wierman, Steven Low and Lachlan L. H. Andrew.

ACM GreenMetrics, Jun 7, 2011, San Jose, CA.

Best student paper award. 57 citations on Google scholar since Jun 2011.

§  Greening Geographical Load Balancing

Zhenhua Liu, Minghong Lin, Adam Wierman, Steven Low and Lachlan L. H. Andrew.

ACM Sigmetrics, Jun 7–11, 2011, San Jose, CA.

IEEE Sustainable Computing Register “Pick of the Month” for the April 2013. 177 citations on Google scholar since Jun 2011.

§  Protective Internet Protocol (PIP)

Zhenhua Liu, Xiaoping Zhang, Lars Westberg, Youjian Zhao, Ling Chen.

ICNP 2008 (Extended Abstract).

§  An Asymptotically Minimal Node-degree Topology for Load-Balanced Architectures

Zhenhua Liu, Xiaoping Zhang, Youjian Zhao, Hongtao Guan.

IEEE GLOBECOM 2008.

§  A Game-Theoretic Analysis of TCP Vegas and FAST TCP

Zhenhua Liu, Xiaoping Zhang, Dong Wang, Youjian Zhao, Hongtao Guan.

CIICT 2008.

Journal Publications and Preprints

§  Reducing Total Cost of Sustainable Data Centers

Zhenhua Liu, Yuan Chen and Adam Wierman. Preprint.

§  Renewable and Cooling Aware Workload Management for Sustainable Data Centers

Zhenhua Liu, Yuan Chen, Cullen Bash, Adam Wierman, Daniel Gmach, Zhikui Wang, Manish Marwah and Chris Hyser. Preprint. Extension of a paper that appeared in ACM Sigmetrics, 2012.

§  Online Algorithms for Geographical Load Balancing

Minghong Lin, Zhenhua Liu, Adam Wierman and Lachlan L.H. Andrew.  Preprint. Extension of a paper that appeared in International Green Computing Conference (IGCC), 2012.

§  Greening Geographical Load Balancing

Zhenhua Liu, Minghong Lin, Adam Wierman, Steven Low, Lachlan L. H. Andrew.

IEEE/ACM Transaction on Networking (ToN), 2014. Extension of a paper that appeared in ACM Sigmetrics, 2011.

§  Data Center Demand Response: Avoiding the Coincident Peak via Workload Shifting and Local Generation

Zhenhua Liu, Adam Wierman, Yuan Chen, Benjamin Razon, and Niangjun Chen.

Performance Evaluation, vol. 70(10), Oct. 2013. Conference version appeared in the Proceedings of IFIP Performance 2013. Made the most downloaded list of all Performance Evaluation articles.

§  Geographical Load Balancing with Renewables

Zhenhua Liu, Minghong Lin, Adam Wierman, Steven Low, Lachlan L. H. Andrew.

Performance Evaluation Review, vol. 39(3), Dec. 2011. Conference version appeared in the Proceedings of ACM GreenMetrics 2011.

§  Scalable Router

Xiaoping Zhang, Zhenhua Liu, Youjian Zhao, Hongtao Guan.

China Journal of Software. vol. 19(6), 2008.

Patents and Thesis

  • Four patents filed during the internship at HP Labs.
  • “Scalable Router Based on P2i”, China patent CN100440847C.
  • “Greening Geographical Load Balancing”. Master’s Thesis. California Institute of Technology, 2011.
  • “High Capacity Scalable Switch Fabric Based on Load-balanced Architecture”. Master’s Thesis. Tsinghua University, 2009. Excellent Master Thesis Award of Tsinghua University.
  • “Migration of Linux on IQ80331 and Code Analysis of REDBOOT”. Bachelor’s Thesis. Tsinghua University, 2006. Excellent Thesis.


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Teaching

§  TA for CS/EE147 Network performance analysis , Caltech, Spring 2013.

§  TA for CS/EE146 The Advanced Networking: Green IT, Caltech, Spring 2011.

§  TA for CS/EE145 Projects in Networking, Caltech, Spring 2011.

§  TA for CS/EE143 Communication Networks, Caltech, Fall 2010.

Latest update 7/18/2014

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