About Me
I'm a PhD student at Department of Computer Science and Technology, Tsinghua University. I obtained my Bachelor's degree (2017-2021) from the Department of Chemical Engineering, Tsinghua University. My research interests include high-performance computing (HPC), performance optimization, and large-scale scientific computing, especially involving numerical linear algebra. I am also looking for research opportunities in AI system.
Publications
Yi Zong, Chensong Zhang, Longjiang Mu, Jianchun Wang, Jian Sun, Xiaowen Xu, Xinliang Wang, Peinan Yu, Wei Xue.
Semi-StructMG: A Fast and Scalable Semi-Structured Algebraic Multigrid.
In Proceedings of the 30th ACM SIGPLAN Annual Symposium on Principles and Practice of Parallel Programming (PPoPP 2025)
🔗 Link
Yi Zong, Peinan Yu, Haopeng Huang, and Wei Xue.
FP16 Acceleration in Structured Multigrid Preconditioner for Real-World Applications.
In Proceedings of the 53rd International Conference on Parallel Processing (ICPP 2024) –
Best Paper Award
🔗 Link
Yi Zong, Xinliang Wang, Haopeng Huang, Chensong Zhang, Xiaowen Xu, Jian Sun, Bowen Yan, Qin Wang, Sicong Li, Zhaohui Ding, and Wei Xue.
POSTER: StructMG: A Fast and Scalable Structured Multigrid.
In Proceedings of the 29th ACM SIGPLAN Annual Symposium on Principles and Practice of Parallel Programming (PPoPP 2024) –
Best Poster Presentation Award
🔗 Link
Yi Zong, Min Li, Kai Wang.
Outflow boundary condition of multiphase microfluidic flow based on phase ratio equation in lattice Boltzmann method.
Published in Physics of Fluids, 1 July 2021; 33 (7): 073304 – Editors' Pick
🔗 Link
Yongxiao Zhou, Yi Zong, Yuyang Jin, Heng Li, and Wei Xue.
An Efficient 2D Fusion Method for High-Performance Two-Stage Eigensolvers on Modern Heterogeneous Architectures.
In International Conference on Supercomputing (ICS 2025)
🔗 Link
Zhengding Hu, Yi Zong, Jingwei Sun, Wei Xue, Guangzhong Sun.
A Fast Sparse Triangular Solve for Structured-grid Problems on Heterogeneous Processors.
In Proceedings of the 54th International Conference on Parallel Processing (ICPP 2025)
🔗 Link
Projects
🔧 TH-HPCA Multigrid Toolkit
A high-performance algebraic multigrid (AMG) toolkit for solving large-scale sparse linear systems on modern HPC architectures. The three libraries, StructMG, Semi-StructMG, and UnstructMG, target the Struct, SStruct, and IJ interfaces of hypre , respectively.
- A customized version of StructMG, deployed in the business operation of the Global/Regional Assimilation and Prediction System (GRAPES) at the China Meteorological Administration, with >5x speedup for the Helmholtz equation solver module
- Semi-StructMG and UnstructMG rated 1st and 4th, respectively, in a bounty challenge hosted by the Research Institute of Petroleum Exploration and Development of China (CNPN)
- UnstructMG rated 1st in a bounty challenge hosted by the China Ship Scientific Research Center (CSSC).
🤝 Huawei Company Technical Collaboration Project
- Evaluated microarchitectural performance of Kunpeng 920 (instruction, cache, and PMU events);
- Conducted performance diagnostics and optimization of sparse matrix computation kernels on Kunpeng 920. End-to-end improvements >30% for 4 mini-apps (AMG, MFEM, miniFE, CGPOP).
Awards
I won a few academic and industrial awards, as listed below.
- 🏅 Huawei Company Outstanding Technical Collaboration Project Award (10+/year in the world) in 2023
- First Price in Solving Large-Scale Linear Equations of Process System Engineering Problems of 2025 OpenAtom Open Source Competition (¥200,000 bounty offered by Sinopec Group)
- First Place in Solving Ultra-Scale Sparse Linear Equations in Fully Implicit Simulations Competition of 2024 OpenAtom Open Source Competition (¥1,000,000 bounty offered by CNPN)
- First Prize of Solving Algorithm Competition for Large-Scale Sparse Asymmetric Algebraic Equation of 2023 OpenAtom Open Source Competition (¥600,000 bounty offered by CSSC)
- Second Prize of Efficient Solution of Linear Equations with Asymmetric Dense Matrices of 2023 OpenAtom Open Source Competition (¥700,000 bounty offered by CNPN)
- Outstanding Winner of SolverChallenge Competition of Solver22 and Solver23 Conference 2022, 2023
- 🏆 Outstanding Winner of Mathematical Contest in Modeling (MCM) (top 0.1% in the world) in 2019 (paper)
- First Prize of China Undergraduate Mathematical Contest in Modeling in 2018
- First Prize of Chinese Mathematics Competitions in Beijing Regional in 2018
- Second Prize of National Undergraduate Physics Competitions in 2018
I also received some honors throughout my campus life, as listed below.
- 🏅 National Scholarship (top 1% in the Department) for graduates in 2024, 2025
- Outstanding Graduate of Tsinghua University in 2021
- Outstanding Graduate of Beijing in 2021
- 🏅 National Scholarship (top 1% in the Department) for undergraduates in 2019
- Comprehensive Excellence Scholarship of Tsinghua University 2018
Contact Me
📧 Email: zongy17@126.com
📧 Email: zong-y21@mails.tsinghua.edu.cn
💼 GitHub: zongy17
💼 Gitee: zongy17
🎨 CSDN blogs: zongy17