An open-source suite for full-stack carbon accounting and life cycle assessment of computing systems — from hardware manufacturing to software-level attribution.
ACT enables computer architects to quantify the embodied carbon footprint of hardware during early design exploration — treating carbon as a first-order optimization target alongside performance, power, and energy. Since its introduction at ISCA 2022, ACT has been adopted widely across academia and industry, including Meta’s sustainability reporting framework.
MICRO 2024 · Austin, TX · Half Day
Introduction to ACT with hands-on demonstrations for using and extending the tool. Featured invited talks from CMU, ASU, Harvard, Boston University, and Cornell Tech.
ISCA 2026 · Date TBD · Half Day
Expanded framework for the AI era: uncertainty estimation, full GPU lifecycle analysis, in-memory computing, and software-level carbon attribution.
If you use ACT in your research, please cite:
@inproceedings{gupta2022act,
title={ACT: designing sustainable computer systems
with an architectural carbon modeling tool},
author={Gupta, Udit and Elgamal, Mariam and Hills, Gage
and Wei, Gu-Yeon and Lee, Hsien-Hsin S
and Brooks, David and Wu, Carole-Jean},
booktitle={Proceedings of the 49th Annual International
Symposium on Computer Architecture},
pages={784--799},
year={2022}
}