Walid Abdelrahman Hanafy

Manning College of Information and Computer Sciences

UMass, Amherst

Amherst, MA 01002

I am a distributed systems researcher, with extensive experience in developing efficient and intelligent distributed systems. My current research focuses on building sustainable computing and societal infrastructures, as well as designing resource-efficient and failure-resilient AI systems for resource-constrained edge environments. I am working with Prof. Prashant Shenoy and funded by the NSF CoDec Project to work computational decarbonization of computing and societal infrastructures.

I received my PhD in Computer Science from the University of Massachusetts, Amherst in May 2025. I also hold a Master’s degree in Computer Engineering from Helwan University, Egypt, and a Bachelor’s degree in Computer Engineering from the same university.

My work has been published in top-tier conferences, e.g., ASPLOS, SIGMETRICS, INFOCOM, HPDC, e-Energy, SoCC, IoTDI, SEC, and IWQoS.

I am the recipient of the Krithi Ramamritham Computer Science Scholarship 2025, the Best Student Paper award at ACM SIGMETRICS 2024, and the Outstanding Innovation Award from Nokia Bell Labs 2021.

For more details please checkout my CV.

I am currently on the 2025-2026 academic job market. Please feel free to reach out!

news

Dec 09, 2025	Our Paper Go with the Flow: Analyzing the Carbon Footprint of Green Streaming was accepted in e-Energy’26 in Banff, Canada.
Nov 20, 2025	I am honored to be featured by the University of Massachusetts Amherst Graduate School’s article highlighting my Ph.D. and postdoctoral research on sustainable computing and carbon-aware systems. Full Article.
Oct 01, 2025	Our Paper FailLite: Failure-Resilient Model Serving for Resource-Constrained Edge Environments was accepted to SoCC ‘25.
Oct 01, 2025	Our Paper LLM-Driven Auto Configuration for Transient IoT Device Collaboration was accepted to SEC’25.
Sep 19, 2025	Our Paper FMTK was accepted in NeurIPS’25/BERT2S

selected publications

SoCC

FailLite: Failure-Resilient Model Serving for Resource-Constrained Edge Environments

Li Wu, Walid A. Hanafy, Tarek Abdelzaher, and 3 more authors

In Proceedings of the 2025 ACM Symposium on Cloud Computing, 2025

Bib

@inproceedings{Wu2025:FailLite,
  title = {{FailLite: Failure-Resilient Model Serving for Resource-Constrained Edge Environments}},
  author = {Wu, Li and Hanafy, Walid A. and Abdelzaher, Tarek and Irwin, David and Milzman, Jesse and Shenoy, Prashant},
  year = {2025},
  eprint = {2504.15856},
  archiveprefix = {arXiv},
  primaryclass = {cs.DC},
  url = {https://arxiv.org/abs/2504.15856},
  booktitle = {Proceedings of the 2025 ACM Symposium on Cloud Computing},
  series = {SoCC'25},
}

ASPLOS

Going Green for Less Green: Optimizing the Cost of Reducing Cloud Carbon Emissions

Walid A. Hanafy, Qianlin Liang, Noman Bashir, and 3 more authors

In Proceedings of the 29th ACM International Conference on Architectural Support for Programming Languages and Operating Systems, Volume 3, La Jolla, CA, USA, 2024

DOI Bib

@inproceedings{hanafy2024gaia,
  author = {Hanafy, Walid A. and Liang, Qianlin and Bashir, Noman and Souza, Abel and Irwin, David and Shenoy, Prashant},
  title = {{Going Green for Less Green: Optimizing the Cost of Reducing Cloud Carbon Emissions}},
  year = {2024},
  isbn = {9798400703867},
  url = {https://doi.org/10.1145/3620666.3651374},
  doi = {10.1145/3620666.3651374},
  booktitle = {Proceedings of the 29th ACM International Conference on Architectural Support for Programming Languages and Operating Systems, Volume 3},
  pages = {479–496},
  numpages = {18},
  keywords = {sustainable computing, cloud computing},
  location = {La Jolla, CA, USA},
  series = {ASPLOS '24},
}

SIGMETRICS

🏆 CarbonScaler: Leveraging Cloud Workload Elasticity for Optimizing Carbon-Efficiency

Walid A. Hanafy, Qianlin Liang, Noman Bashir, and 2 more authors

SIGMETRICS Performance Evaluation Review, Jun 2024

Awarded DOI Bib

Best Student Paper Award SIGMETRICS 2024

@article{hanafy2024carbonscaler,
  author = {Hanafy, Walid A. and Liang, Qianlin and Bashir, Noman and Irwin, David and Shenoy, Prashant},
  title = {{🏆 CarbonScaler: Leveraging Cloud Workload Elasticity for Optimizing Carbon-Efficiency}},
  year = {2024},
  issue_date = {June 2024},
  volume = {52},
  number = {1},
  issn = {0163-5999},
  url = {https://doi.org/10.1145/3673660.3655048},
  doi = {10.1145/3673660.3655048},
  journal = {SIGMETRICS Performance Evaluation Review},
  month = jun,
  pages = {49–50},
  numpages = {2},
  keywords = {auto scaling, carbon efficiency, sustainable computing},
}

ASPLOS

Ecovisor: A Virtual Energy System for Carbon-Efficient Applications

Abel Souza, Noman Bashir, Jorge Murillo, and 4 more authors

In Proceedings of the 28th ACM International Conference on Architectural Support for Programming Languages and Operating Systems, Vancouver, BC, Canada, Jun 2023

DOI Bib

@inproceedings{ecovisor,
  author = {Souza, Abel and Bashir, Noman and Murillo, Jorge and Hanafy, Walid A. and Liang, Qianlin and Irwin, David and Shenoy, Prashant},
  title = {{Ecovisor: A Virtual Energy System for Carbon-Efficient Applications}},
  year = {2023},
  isbn = {9781450399166},
  url = {https://doi.org/10.1145/3575693.3575709},
  doi = {10.1145/3575693.3575709},
  booktitle = {Proceedings of the 28th ACM International Conference on Architectural Support for Programming Languages and Operating Systems},
  volume = {2},
  pages = {252–265},
  numpages = {14},
  keywords = {operating systems, cloud computing, Sustainable computing},
  location = {Vancouver, BC, Canada},
  series = {ASPLOS 2023},
}