Peirui Cao (曹培睿)

Research Assistant Professor
紫金学者人才基金获得者
State Key Laboratory for Novel Software Technology,
School of Computer Science,
Nanjing University.

Address: Building of Computer Science and Technology, Nanjing University, No.163 Xianlin Avenue, Nanjing, China, 210023
Email: caopeirui AT nju.edu.cn

Short Bios

Shizhen Zhao

Research Interests

My research interests include data center networks (including topology, routing, collective communication and RDMA, etc.), large-scale network simulator and network bottleneck analysis. At its core, I am committed to closing the gap between theory and the real network system.

News

[April 2025]: Congratulations to Zhaochen's paper for winning the Best Student Paper Award of EuroSys 25.
[December 2024]: Peirui 获南京大学紫金学者人才基金资助。
[July 2024]: Peirui joins Nanjing University as a Research Assistant Professor.
[June 2024]: Peirui receives his PhD degree from Shanghai Jiao Tong University.
[June 2024]: Peirui joins program committee on the SIGCOMM 2024 Artifact Evaluation (SIGCOMM 24 AE).

Publications

#: corresponding author

Weihao Jiang, Wenli Xiao, Yuqing Yang, Peirui Cao, Shizhen Zhao, "Orderlock: A New Type of Deadlock and its Implications on High Performance Network Protocol Design", in SIGCOMM, Coimbra, Portugal, September, 2025.
Peirui Cao, Rui Ning, Hongwei Yang, Zhaochen Zhang, Chang Liu, Rui Li, Yongqi Yang, Yunzhuo Liu, Chengyuan Huang, Tao Sun, Xiaodong Duan, Guihai Chen, Chen Tian, "PortFC: Designing High-performance Deadlock-free BCube Networks", in ICS, Salt Lake City, USA, June, 2025.
Zhaochen Zhang, Feiyang Xue, Keqiang He, Zhimeng Yin, Gianni Antichi, Jiaqi Gao, Yizhi Wang, Rui Ning, Haixin Nan, Xu Zhang, Peirui Cao, Xiaoliang Wang, Wanchun Dou, Guihai Chen, Chen Tian, "Enabling Virtual Priority in Data Center Congestion Control", in EuroSys, Rotterdam, Netherlands, March, 2025. (Best Student Paper Award)
Mingyao Wang, Keqiang He, Peirui Cao#, Jiong Duan, Dongliang Lv, Zehao Yu, Yanqing Chen, Chengyuan Huang, Wanchun Dou, Guihai Chen, Chen Tian, "Reunion: Receiver-Driven Network Load Balancing Mechanism in AI Training Clusters", in Computer Networks, 2025.
Shengkai Lin, Shizhen Zhao, Peirui Cao, Xinchi Han, Quan Tian, Wenfeng Liu, Qi Wu, Donghai Han, Xinbing Wang "ONCache: A Cache-Based Low-Overhead Container Overlay Network", in NSDI, Philadelphia, PA, USA, April, 2025.
Wenli Xiao, Yuqing Yang, Peirui Cao, Zhuoran Liu, Shizhen Zhao, Xinbing Wang, "OFC: An Original Congestion-based Fine-grained Priority Flow Control", in SECON, Phoenix, AZ, USA, December, 2024.
Peirui Cao, Wenxue Cheng, Shizhen Zhao, Yongqiang Xiong, "Network Load Balancing with Parallel Flowlets for AI Training Clusters", in SIGCOMM Workshop on Networks for AI Computing (NAIC), Sydney, Australia, August, 2024.
Xiao Zhang, Peirui Cao, Yongxi Lyu, Qizhou Zhang, Shizhen Zhao, Xinbing Wang, Chenghu Zhou "FC+: Near-optimal Deadlock-free Expander Data Center Networks", in IEEE ISPA, Wuhan, China, December, 2023.
Peirui Cao, Shizhen Zhao, Dai Zhang, Zhuotao Liu, Mingwei Xu, Min Yee Teh, Yunzhuo Liu, Xinbing Wang, Chenghu Zhou, "Threshold-based Routing-Topology Co-design for Optical Data Center", in IEEE/ACM Transactions on Networking (ToN), 2023.
Shizhen Zhao, Qizhou Zhang, Peirui Cao, Xiao Zhang, Xinbing Wang, Chenghu Zhou, "Flattened Clos: Designing High-performance Deadlock-free Expander Data Center Networks Using Graph Contraction", in NSDI, Boston, MA, USA, April, 2023.
Min Yee Teh, Shizhen Zhao, Peirui Cao, Keren Bergman, "Enabling Quasi-static Reconfigurable Networks with Robust Topology Engineering", in IEEE/ACM Transactions on Networking (ToN), 2022.
Shizhen Zhao, Peirui Cao (first-student author), Xinbing Wang, "Understanding the Performance Guarantee of Physical Topology Design for Optical Circuit Switched Data Centers", in SIGMETRICS, Mumbai, India, June, 2022. (Also invited in PACM on Measurement and Analysis of Computing Systems, Volume 5 Issue 3. https://dl.acm.org/doi/10.1145/3491054)
Peirui Cao, Shizhen Zhao, Min Yee Teh, Yunzhuo Liu, Xinbing Wang, "TROD: Evolving From Electrical Data Center to Optical Data Center", in ICNP, Dallas, Texas, USA, November, 2021.
Shizhen Zhao, Xiao Zhang, Peirui Cao, Xinbing Wang, "Design of Robust and Efficient Edge Server Placement and Server Scheduling Policies", in IWQoS, Tokyo, Japan, June, 2021.

Services

Program committee on the SIGCOMM 2024 Artifact Evaluation.
Reviewer: IWQos (2025), IEEE/ACM Transactions on Networking (ToN), IEEE Transactions on Network and Service Management (TNSM).
Contributed reviews to INFOCOM (2024), ICNP (2024), CoNEXT (2024), MobiHoc (2022, 2021, 2020), IWQoS (2024).

Teaching

SJTU Teaching Assistant CS457-CNS2021: Computer Network, Fall, 2021
SJTU Teaching Assistant CS339-3-2021: Computer Network, Fall, 2021
SJTU Teaching Assistant CS149: Data Structure, Spring, 2020
SJTU Teaching Assistant CS149: Data Structure, Fall, 2019

Students

I am honored to be able to advise/co-advise these excellent students.

Ph.D. students: Zhaochen Zhang, Chenxu Wang.
Master students: Yongqi Yang, Ruyi Zhang, Haixin Nan, Zhonghui Zhang, Mingyao Wang, Zhehao Lin.
Undergraduate students: Jiong Duan, Chang Yu, Rui Ning, Rui Li.