About

I am a Ph.D. student in Electrical Engineering at Columbia University, advised by Prof. Tanvir Ahmed Khan. I work at the boundary of compilers and hardware/software co-design.

My research spans profile-guided optimization for data center applications, power management for large-scale and heterogeneous systems, and energy efficiency of GPUs and other accelerators. Recently, I have been working on energy efficiency for distributed machine learning. My long-term goal is a general system that can optimize any combination of heterogeneous hardware for any application.

Before Columbia, I received my B.Sc. (ranked 1st in class) and M.Sc. in Computer Science and Engineering from BUET, where I also served as a Lecturer for three years.

Earlier papers list me as Mohammad Tawhidul Hasan Bhuiyan.

News

• Jun 2026Presented Enabling Energy Efficiency for Distributed Machine Learning at the ASTRA-sim Tutorial, ISCA 2026.
• Mar 2026Presented Wax: Optimizing Data Center Applications With Stale Profile at ASPLOS 2026 in Pittsburgh, PA.
• Mar 2026Invited talk on Wax at Google.
• Feb 2026Invited talk on Wax at Meta.
• May 2025Presented Reverse Engineering DVFS Mechanisms at HOST 2025 in San Jose, CA.
• Sep 2024Started my Ph.D. at Columbia University.

Publications

@inproceedings{bhuiyan2026wax,
  title     = {Wax: Optimizing Data Center Applications With Stale Profile},
  author    = {Bhuiyan, Tawhid and Hoque, Sumya and Moreira, Ang{\'e}lica Aparecida and Khan, Tanvir Ahmed},
  booktitle = {Proceedings of the 31st ACM International Conference on Architectural
               Support for Programming Languages and Operating Systems, Volume 2},
  series    = {ASPLOS '26},
  publisher = {Association for Computing Machinery},
  address   = {Pittsburgh, PA, USA},
  pages     = {17 pages},
  month     = mar,
  year      = {2026},
  doi       = {10.1145/3779212.3790248}
}

@inproceedings{piersma2025dvfs,
  title     = {Reverse Engineering DVFS Mechanisms},
  author    = {Piersma, Ryan and Bhuiyan, Tawhid and Khan, Tanvir Ahmed and Sethumadhavan, Simha},
  booktitle = {2025 IEEE International Symposium on Hardware Oriented Security and Trust (HOST)},
  address   = {San Jose, CA, USA},
  pages     = {111--122},
  month     = may,
  doi       = {10.1109/HOST64725.2025.11050037},
  year      = {2025}
}

@article{bhuiyan2022lcais,
  title   = {Computing the Largest Common Almost-Increasing Subsequence},
  author  = {Bhuiyan, Mohammad Tawhidul Hasan and Alam, Muhammad Rashed and Rahman, M. Sohel},
  journal = {Theoretical Computer Science},
  volume  = {930},
  pages   = {157--178},
  year    = {2022},
  doi     = {10.1016/j.tcs.2022.07.021}
}

@article{bhuiyan2021covid,
  title   = {The Disproportionate Impact of COVID-19 among Undocumented
             Immigrants and Racial Minorities in the US},
  author  = {Bhuiyan, Mohammad Tawhidul Hasan and Khan, Irtesam Mahmud and
             Jony, Sheikh Saifur Rahman and Robinson, Renee and Nguyen, Uyen-Sa D. T.
             and Keellings, David and Rahman, M. Sohel and Haque, Ubydul},
  journal = {International Journal of Environmental Research and Public Health},
  volume  = {18},
  number  = {23},
  pages   = {12708},
  year    = {2021},
  doi     = {10.3390/ijerph182312708}
}

Talks

• Jun 27, 2026Enabling Energy Efficiency for Distributed Machine Learning
  ASTRA-sim Tutorial at ISCA 2026
• Mar 26, 2026Wax: Optimizing Data Center Applications With Stale Profile
  ASPLOS 2026, Pittsburgh, PA
• Mar 9, 2026Wax: Optimizing Data Center Applications With Stale Profile
  Invited talk, Google
• Feb 5, 2026Wax: Optimizing Data Center Applications With Stale Profile
  Invited talk, Meta
• May 6, 2025Reverse Engineering DVFS Mechanisms
  HOST 2025, San Jose, CA

Teaching & Mentoring

Columbia University · Research Mentor

• EECS 6894, Fall 2026: Mentoring 15 students across 5 systems research projects.
• EECS 6894, Fall 2025: Mentored 15 students across 4 systems research projects.
• Mentored an undergraduate researcher on GPU energy modeling, leading to a co-authored paper under submission.

BUET · Lecturer, 2021–2024

Operating Systems · Database Management Systems · Software Development · Computer Graphics · Computer Programming · Digital Logic Design

Brac University · Lecturer, 2021

Discrete Mathematics · Algorithms · Computer Graphics · Microprocessors

United International University · Lecturer, 2021

Database Management Systems · Computer Graphics

Background

Honors

• BUET Alumni Association Crest of Honor for the highest CGPA in the department (2022)
• Dean's List, BUET, in all 8 undergraduate semesters (2016–2021)
• University Merit Scholarship, BUET (2016–2021)

Service

• Organizing Committee, International Conference on Networking, Systems and Security (NSysS) 2021, 2022, 2023