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I am a Ph.D. candidate at Rigorous Systems Research Group (RSRG) in the Department of Computer Science at California Institute of Technology, working with Professor Adam Wierman. Prior to joining Caltech, I received my B.Eng. in Automation from Tsinghua University, China. Here is my CV.

My research focuses on optimization of today's large scale data centers, including online scheduling, energy usage and sustainability, and new market mechanism designs (electricity market, data market, etc.).

Selected Awards

Selected Publications

  1. "Datum: Managing Data Purchasing and Data Placement in a Geo-Distributed Data Market." (pdf) Xiaoqi Ren, Palma London, Juba Ziani, Adam Wierman, To appear in IEEE/ACM Transactions on Networking.
  2. "A Spot Capacity Market to Increase Power Infrastructure Utilization in Multi-Tenant Data Centers." (pdf) Mohammad A. Islam, Xiaoqi Ren, Shaolei Ren, Adam Wierman. To appear in IEEE High Performance Computer Architecture (HPCA), 2018.
  3. "Joint Data Purchasing and Data Placement in a Geo-Distributed Data Market." Xiaoqi Ren, Palma London, Juba Ziani, Adam Wierman.ACM Sigmetrics (poster), 2016.
  4. "A Market Approach for Handling Power Emergencies in Multi-Tenant Data Center." (pdf) Mohammad A. Islam, Xiaoqi Ren, Shaolei Ren, Adam Wierman, Xiaorui Wang. IEEE High Performance Computer Architecture (HPCA), 2016.
  5. "Hopper: Decentralized Speculation-aware Cluster Scheduling at Scale." (pdf) Xiaoqi Ren, Ganesh Ananthanarayanan, Adam Wierman, Minlan Yu. ACM SIGCOMM, 2015.
  6. "Speculation-aware Cluster Scheduling." (pdf) Xiaoqi Ren, Ganesh Ananthanarayanan, Adam Wierman, Minlan Yu. Mathematical performance modeling and analysis (MAMA), 2015.
  7. "Greening Multi-Tenant Data Center Demand Response." (pdf) Niangjun Chen, Xiaoqi Ren, Shaolei Ren, Adam Wierman. Performance Evaluation, 2015. An early version appears in IFIP Performance, 2015.
  8. "GRASS: Trimming Stragglers in Approximation Analytics." (pdf) Ganesh Ananthanarayanan, Michael Chien-Chun Hung, Xiaoqi Ren, Ion Stoica, Adam Wierman, Minlan Yu. 11th USENIX Symposium on Networked Systems Design and Implementation (NSDI), 2014.
  9. "Sampling-based Smoothed Analysis for Network Algorithm Evaluation." (pdf) Xiaoqi Ren, Zhi Liu, Yaxuan Qi, Jun Li, and Shanghua Teng. IEEE GLOBECOM, 2013.