I am a Distinguished Professor and Associate Dean in the College of Information and Computer Sciences at UMass Amherst. My research interests lie broadly in distributed systems and networking. I head the Laboratory for Advanced Systems Software here at UMass where we focus on building systems and understand them through modeling, analysis and experimentation. I direct the recently established Center for Smart and Connected Society (CS2) and previously directed the Center for Personalized Health Monitoring (CPHM), at UMass.


Honors and Awards

Recent News

  • Dec 2023: Anupama Sitaraman chosen as UMass Rising Researcher
  • Oct 2023: Invited talks on Decarbonzing Cloud Computing at IISc, Cornell, and Ecole Polytechnique.
  • Jun 2023: Co-organized ACM SIGEnergy Workshop on Societal Decarbonization
  • Apr 2023: Tergel Molom-Ochir chosen as UMass Rising Researcher
  • Dec 2022: Keynote talk on Edge computing at IEEE Milcom workshop on IoT
(More news..)


Ph.D. (1998), M.S. (1994), Computer Sciences, The University of Texas at Austin.

B.Tech (1993), Computer Science and Engineering, Indian Institute of Technology Bombay.


I am an experimental Computer Scientist with a focus on distributed systems and networking. My current research projects focus on cloud computing, green computing, and energy informatics. I also maintain broad interests in operating systems and virtualization, storage and data management, IoT and sensor networks, mobile and multimedia computing, and Internet-scale systems.

Full list of my Publications and Recent Talks

Also see my publications page at Google Scholar and DBLP.

Research group: Laboratory for Advanced Systems Software

I maintain the UMass Trace Repository, UMass CS Weather Station, BenchLab, Smart* Dataset.

Be sure to check out Why UMass rocks!


I am teaching Distributed and Operating Systems (Compsci 677) in Spring 2024.

Past Courses Archive


I have become more selective in my external professional service due to my internal role as Associate Dean.

I recently served as the foundig Chair of the ACM Special Interest Group on Energy (SIGEnergy), a professional group that focuses on energy informatics and computational sustainability.

I am serving as the Co-chair of ACM SIGEnergy Workshop on Societal Decarbonization (SoDec'24). Previously, I have served as Program Chair or General Chair for sixteen conferences and workshops. Here is a list of conferences I have chaired.

I have served or am serving on the editorial boards of ACM Transactions on IOT (TIOT), ACM Modeling and Performance Evaluation of Computing Systems (TOMPECS), ACM Transactions on the Web (TWEB), Springer Multimedia Systems, Sustainable Energy, Grids and Networks, PeerJ Computer Science. I have previously served on the Steering Committee of ACM e-Energy, ACM BuildSys and IEEE Trans. on Mobile Computing.

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