Sixu Li

B.Eng. in Communication Engineering, University of Electronic Science and Technology of China, (电子科技大学), 2017 - 2021

Ph.D. Student in Electronic and Computer Engineering, Rice University, 2022 - 2023 (Transferred to Gatech)

Ph.D. Student in Computer Science, Georgia Institute of Technology, 2023 - 2026

Third Place, PhD Forum at DAC 2025

2025 ML and Systems Rising Star by MLCommons

First Prize out of 150+ International Teams, ICCAD Tiny ML Contest 2022

ORCHES: Orchestrated Test-Time-Computation-based LLM Reasoning on Collaborative GPU-PIM HEterogeneous System

• IEEE/ACM International Symposium on Microarchitecture (MICRO), 2025

• Sixu Li*, Yuzhou Chen*, Chaojian Li, Yonggan Fu, Zheng Wang, Zhongzhi Yu, Haoran You, Zhifan Ye, Wei Zhou, Luke Zhang, Yingyan (Celine) Lin

• [ACM] 

GauRast: Enhancing GPU Triangle Rasterizers to Accelerate 3D Gaussian Splatting

• 62th ACM/IEEE Design Automation Conference (DAC), 2025

• Sixu Li, Ben Keller, Yingyan (Celine) Lin, Brucek Khailany

• [arxiv]

Fusion-3D: Integrated Acceleration for Instant 3D Reconstruction and Real-Time Rendering

• Best Paper Award at MICRO'24

• IEEE/ACM International Symposium on Microarchitecture (MICRO), 2024

• Sixu Li, Yang Zhao, Chaojian Li, Bowei Guo, Jingqun Zhang, Wenbo Zhu, Zhifan Ye, Cheng Wan, Yingyan (Celine) Lin

• [IEEE] 

Instant-3D: Instant Neural Radiance Fields Training Towards Real-Time AR/VR 3D Reconstruction

• Top-5 Cited Paper at ISCA'23

• International Symposium on Computer Architecture (ISCA), 2023

• Sixu Li*, Chaojian Li*, Wenbo Zhu, Boyang (Tony) Yu, Yang (Katie) Zhao, Cheng Wan, Haoran You, Huihong Shi, Yingyan (Celine) Lin

• [arxiv]  [ACM] [Slides]

RT-NeRF: Real-Time On-Device Neural Radiance Fields Towards Immersive AR/VR Rendering

• Top-1 Cited Paper at ICCAD'22

• ACM/IEEE International Conference on Computer-Aided Design (ICCAD), 2022

• Chaojian Li*, Sixu Li*, Yang Zhao*, Wenbo Zhu, Yingyan Lin

• [arxiv] [ACM] [Slides]

An Ultra-Energy-Efficient and High Accuracy ECG Classification Processor with SNN Inference assisted by On-chip ANN Learning

• Top 20% Cited Paper at TBioCAS'22

• IEEE Transactions on Biomedical Circuits and Systems (TBioCAS), 2022

• Ruixin Mao, Sixu Li, Zhaomin Zhang, Zihan Xia, Jianbiao Xiao, Zixuan Zhu, Jiahao Liu, Weiwei Shan, Liang Chang, Jun Zhou

• [IEEE]

A Fast and Energy-Efficient SNN Processor With Adaptive Clock/Event-Driven Computation Scheme and Online Learning

• Top 4% Cited Paper at TCAS-I'21

• IEEE Transactions on Circuits and Systems I: Regular Papers (TCAS-I), 2021

• Sixu Li, Zhaomin Zhang, Ruixin Mao, Jianbiao Xiao, Liang Chang, Jun Zhou

• [IEEE]

AD/AE Reviewer: ACM/IEEE Supercomputing Conference 2026 (SC26) Reproducibility Committee

AD/AE Reviewer: ACM/IEEE Supercomputing Conference 2025 (SC25) Reproducibility Committee

AD/AE Reviewer: ACM/IEEE Supercomputing Conference 2024 (SC24) Reproducibility Committee

Reviewer: IEEE Journal of Solid State Circuits (JSSC)

Reviewer: IEEE Transactions on Circuits and Systems I: Regular Papers (TCAS-I)

Reviewer: IEEE Transactions on Circuits and Systems II: Express Briefs (TCAS-II)

Reviewer: IEEE Transactions on Circuits and Systems for Artificial Intelligence (TCASAI)

Reviewer: IEEE Transactions on Circuits and Systems for Video Technology (TCSVT)

Reviewer: IEEE Transactions on Biomedical Circuits and Systems (TBioCAS)

Reviewer: IEEE Transactions on Very Large Scale Integration (VLSI) Systems (TVLSI)

Reviewer: IEEE Transactions on Parallel and Distributed Systems (TPDS)

Reviewer: IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI)

Reviewer: IEEE Access

Reviewer: ACM Transactions on Architecture and Code Optimization (TACO)

Reviewer: Journal of Real-Time Image Processing

Reviewer: Journal of Supercomputing

Reviewer: The Eighth Annual Conference on Machine Learning and Systems (MLSys 2025)