Analysis of Pyrrha: Congestion-Root-Based Flow Control Is Most Cost-Effective to Eliminate Head-of-Line Blocking.

Peirui Cao https://orcid.org/0000-0002-0222-4943 https://www.wikidata.org/entity/Q130977972

Zhaochen Zhang Kexin Liu Peirui Cao Chang Liu 0001 Yizhi Wang 0004 Vamsi Addanki Stefan Schmid 0001 Qingyue Wang Wei Chen Xiaoliang Wang 0001 Jiaqi Zheng 0001 Wenhao Sun Tao Wu 0011 Ke Meng Fei Chen Weiguang Wang Bingyang Liu Wanchun Dou Guihai Chen Chen Tian 0001 Hao Yin Fu Xiao 0001 Analysis of Pyrrha: Congestion-Root-Based Flow Control Is Most Cost-Effective to Eliminate Head-of-Line Blocking. 1958-1973 2026 34 IEEE Trans. Netw. https://doi.org/10.1109/TON.2025.3636161 db/journals/ton/ton34.html#ZhangLCLWASWCWZSWMCWLDC26 streams/journals/ton

Chengyuan Huang Zhengqi Cui Jun Xu 0037 Zhaochen Zhang Li Wang 0110 Peirui Cao Zhongming Ji Jilei Chen Dongxu Wang Shengju Zhang Lingkun Meng Ahmed M. Abdelmoniem Fu Xiao 0001 Wanchun Dou Guihai Chen Keqiang He Chen Tian 0001 UDMP: Unified Delay-Driven Multipath Protocol for AI Clusters. 2446-2461 2026 34 IEEE Trans. Netw. https://doi.org/10.1109/TON.2025.3649183 db/journals/ton/ton34.html#HuangCXZWCJCWZMAXDCHT26 streams/journals/ton

Haixin Nan Jun Xu 0037 Peirui Cao Zhaochen Zhang Yizhi Wang 0004 Zhehao Lin Yuhang Li 0002 Chengyuan Huang Wentao Fan Xiaohu Xu Zhongming Ji Shengju Zhang Dongxu Wang Lingkun Meng Rong Gu 0001 Guihai Chen Chen Tian 0001 Rail: ReArranging Inter-GPU Links for GPU-Centric Clusters. 2026 3061-3074 34 IEEE Trans. Netw. https://doi.org/10.1109/TON.2026.3658194 db/journals/ton/ton34.html#NanXCZWLLHFXJZWMGCT26 streams/journals/ton

Peirui Cao Rui Ning Guangyu Zhao Zhaochen Zhang Chang Liu 0001 Yunzhuo Liu Rui Li 0020 Chengyuan Huang Tao Sun 0010 Zhiqiang Li Guihai Chen Baochun Li Chen Tian 0001 Revisiting Flow Control in Node-Centric Datacenter Networks. 2026 4589-4604 34 IEEE Trans. Netw. https://doi.org/10.1109/TON.2026.3678334 db/journals/ton/ton34.html#CaoNZZLLLHSLCLT26 streams/journals/ton

Chenxu Wang 0007 Wentao Fan Zhehao Lin Peirui Cao Xi Lin Xiaohu Xu Wanchun Dou Guihai Chen Chen Tian 0001 xCCLTuner: Treating xCCL as Black-Box and Automatically Tuning. INFOCOM 2026 1-10 conf/infocom/2026 https://doi.org/10.1109/INFOCOM59046.2026.11571473 db/conf/infocom/infocom2026.html#WangFLCLXDCT26 streams/conf/infocom Zhaochen Zhang Feiyang Xue Rui Ning Keqiang He Gianni Antichi Jiaqi Gao Zhimeng Yin 0001 Kexin Liu Rui Li 0020 Zhengqi Cui Zhehao Lin Peirui Cao Guihai Chen Chen Tian 0001 OSCAR: O(1)-Step Convergence and Readily-deployable Congestion Control. 543-570 2026 NSDI https://www.usenix.org/conference/nsdi26/presentation/zhang-zhaochen conf/nsdi/2026 db/conf/nsdi/nsdi2026.html#ZhangXNHAGYLLCL26 Zhaochen Zhang Jiaqi Gao Sheng Cheng 0002 Peiwen Yu Feiyang Xue Chang Liu 0001 Boliang Liu Kun Liu Yubin Li Rui Li 0020 Li Wang 0110 Peirui Cao Qingkai Meng 0001 Guihai Chen Gang Lu Bo Shi Shuguang Cheng Shu Ma Yongqing Xi Binzhang Fu Dennis Cai Chen Tian 0001 Anytest: Localizing the Root Cause of Hardware Transport Performance Anomalies. 822-836 2026 SIGCOMM https://doi.org/10.1145/3789240.3829125 conf/sigcomm/2026 db/conf/sigcomm/sigcomm2026.html#ZhangGCYXLLLLLW26

Xinchi Han Weihao Jiang Yingming Mao Yike Liu Zhuoran Liu Yongxi Lv Peirui Cao Zhuotao Liu Ximeng Liu Xinbing Wang Changbo Wu Zihan Zhu Dongchao Wu Yang Jian Zhanbang Zhang Yuansen Chen Shizhen Zhao Leaf-centric Logical Topology Design for OCS-based GPU Clusters. 2026 March abs/2603.28168 CoRR https://doi.org/10.48550/arXiv.2603.28168 db/journals/corr/corr2603.html#abs-2603-28168 streams/journals/corr

Mingyao Wang Keqiang He Peirui Cao Jiong Duan Dongliang Lv Zehao Yu Yanqing Chen Chengyuan Huang Wanchun Dou Guihai Chen Chen Tian 0001 Reunion: Receiver-driven network load balancing mechanism in AI training clusters. 111088 2025 259 Comput. Networks https://doi.org/10.1016/j.comnet.2025.111088 db/journals/cn/cn259.html#WangHCDLYCHDCT25 streams/journals/cn

Xinchi Han Shizhen Zhao Yongxi Lv Peirui Cao Weihao Jiang Qinwei Yang Yunzhuo Liu Shengkai Lin Bo Jiang 0003 Ximeng Liu Yong Cui 0001 Chenghu Zhou Xinbing Wang vClos: Network contention aware scheduling for distributed machine learning tasks in multi-tenant GPU clusters. 111285 2025 268 Comput. Networks https://doi.org/10.1016/j.comnet.2025.111285 db/journals/cn/cn268.html#HanZLCJYLLJLCZW25 streams/journals/cn

Zhaochen Zhang Feiyang Xue Keqiang He Zhimeng Yin 0001 Gianni Antichi Jiaqi Gao Yizhi Wang 0004 Rui Ning Haixin Nan Xu Zhang 0006 Peirui Cao Xiaoliang Wang 0001 Wanchun Dou Guihai Chen Chen Tian 0001 Enabling Virtual Priority in Data Center Congestion Control. 396-412 2025 EuroSys https://doi.org/10.1145/3689031.3717463 conf/eurosys/2025 db/conf/eurosys/eurosys2025.html#ZhangXHYAGWNNZC25 Peirui Cao Rui Ning Hongwei Yang Zhaochen Zhang Chang Liu 0001 Rui Li 0020 Yongqi Yang Yunzhuo Liu Chengyuan Huang Tao Sun 0010 Xiaodong Duan Guihai Chen Chen Tian 0001 PortFC: Designing High-performance Deadlock-free BCube Networks. 1052-1063 2025 ICS https://doi.org/10.1145/3721145.3725749 conf/ics/2025 db/conf/ics/ics2025.html#CaoNYZLLYLHSDC025 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. 979-998 2025 NSDI https://www.usenix.org/conference/nsdi25/presentation/lin-shengkai conf/nsdi/2025 db/conf/nsdi/nsdi2025.html#LinZCHTLWHW25 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. 575-591 2025 SIGCOMM https://doi.org/10.1145/3718958.3750497 conf/sigcomm/2025 db/conf/sigcomm/sigcomm2025.html#JiangXYCZ25 Peirui Cao Wenxue Cheng Shizhen Zhao Yongqiang Xiong Network Load Balancing with Parallel Flowlets for AI Training Clusters. 2024 NAIC https://doi.org/10.1145/3672198.3673794 https://www.wikidata.org/entity/Q130977975 conf/naic/2024 db/conf/naic/naic2024.html#CaoCZX24 18-25 Wenli Xiao Yuqing Yang Peirui Cao Zhuoran Liu Shizhen Zhao Xinbing Wang OFC: An Original Congestion-Based Fine-grained Priority Flow Control. 28-36 2024 SECON https://doi.org/10.1109/SECON64284.2024.10934869 conf/secon/2024 db/conf/secon/secon2024.html#XiaoYCLZW24

Xinchi Han Shizhen Zhao Yongxi Lv Peirui Cao Weihao Jiang Shengkai Lin Xinbing Wang LumosCore: Highly Scalable LLM Clusters with Optical Interconnect. 2024 abs/2411.01503 CoRR https://doi.org/10.48550/arXiv.2411.01503 db/journals/corr/corr2411.html#abs-2411-01503 streams/journals/corr

Min Yee Teh Shizhen Zhao Peirui Cao Keren Bergman Enabling Quasi-Static Reconfigurable Networks With Robust Topology Engineering. 1056-1070 2023 June 31 IEEE/ACM Trans. Netw. 3 https://doi.org/10.1109/TNET.2022.3210534 https://www.wikidata.org/entity/Q121097111 db/journals/ton/ton31.html#TehZCB23

Peirui Cao Shizhen Zhao Dai Zhang Zhuotao Liu Mingwei Xu 0001 Min Yee Teh Yunzhuo Liu Xinbing Wang Chenghu Zhou Threshold-Based Routing-Topology Co-Design for Optical Data Center. 2870-2885 2023 December 31 IEEE/ACM Trans. Netw. 6 https://doi.org/10.1109/TNET.2023.3265276 https://www.wikidata.org/entity/Q125630122 db/journals/ton/ton31.html#CaoZZLXTLWZ23

Xiao Zhang Peirui Cao Yongxi Lyu Qizhou Zhang Shizhen Zhao Xinbing Wang Chenghu Zhou FC+: Near-optimal Deadlock-free Expander Data Center Networks. 1-9 2023 ISPA/BDCloud/SocialCom/SustainCom https://doi.org/10.1109/ISPA-BDCloud-SocialCom-SustainCom59178.2023.00033 conf/bdcloud/2023 db/conf/bdcloud/bdcloud2023.html#ZhangCLZZWZ23 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. 663-683 2023 NSDI https://www.usenix.org/conference/nsdi23/presentation/zhao-shizhen conf/nsdi/2023 db/conf/nsdi/nsdi2023.html#ZhaoZCZWZ23

Shengkai Lin Peirui Cao Tianyi Huang Shizhen Zhao Quan Tian Qi Wu Donghai Han Xinbing Wang Chenghu Zhou XMasq: Low-Overhead Container Overlay Network Based on eBPF. 2023 abs/2305.05455 CoRR https://doi.org/10.48550/arXiv.2305.05455 db/journals/corr/corr2305.html#abs-2305-05455

Xinchi Han Weihao Jiang Peirui Cao Qinwei Yang Yunzhuo Liu Shuyao Qi Shengkai Lin Shizhen Zhao Isolated Scheduling for Distributed Training Tasks in GPU Clusters. 2023 abs/2308.05692 CoRR https://doi.org/10.48550/arXiv.2308.05692 db/journals/corr/corr2308.html#abs-2308-05692

Shizhen Zhao Peirui Cao Xinbing Wang Understanding the Performance Guarantee of Physical Topology Design for Optical Circuit Switched Data Centers. 97-98 2022 SIGMETRICS (Abstracts) https://doi.org/10.1145/3489048.3522639 https://www.wikidata.org/entity/Q130980228 conf/sigmetrics/2022 db/conf/sigmetrics/sigmetrics2022.html#ZhaoCW22

Shizhen Zhao Peirui Cao Xinbing Wang Understanding the Performance Guarantee of Physical Topology Design for Optical Circuit Switched Data Centers. 42:1-42:24 2021 5 Proc. ACM Meas. Anal. Comput. Syst. 3 https://doi.org/10.1145/3491054 https://www.wikidata.org/entity/Q130984831 db/journals/pomacs/pomacs5.html#ZhaoCW21

Peirui Cao Shizhen Zhao Min Yee Teh Yunzhuo Liu Xinbing Wang TROD: Evolving From Electrical Data Center to Optical Data Center. 1-11 2021 ICNP https://doi.org/10.1109/ICNP52444.2021.9651977 conf/icnp/2021 db/conf/icnp/icnp2021.html#CaoZTLW21 Shizhen Zhao Xiao Zhang Peirui Cao Xinbing Wang Design of Robust and Efficient Edge Server Placement and Server Scheduling Policies. 1-7 2021 IWQoS https://doi.org/10.1109/IWQOS52092.2021.9521290 conf/iwqos/2021 db/conf/iwqos/iwqos2021.html#ZhaoZCW21

Shizhen Zhao Xiao Zhang Peirui Cao Xinbing Wang Design of Robust and Efficient Edge Server Placement and Server Scheduling Policies: Extended Version. 2021 abs/2104.14256 CoRR https://arxiv.org/abs/2104.14256 db/journals/corr/corr2104.html#abs-2104-14256

Min Yee Teh Shizhen Zhao Peirui Cao Keren Bergman COUDER: Robust Topology Engineering for Optical Circuit Switched Data Center Networks. 2020 abs/2010.00090 CoRR https://arxiv.org/abs/2010.00090 db/journals/corr/corr2010.html#abs-2010-00090

Ahmed M. Abdelmoniem Vamsi Addanki Gianni Antichi Keren Bergman Dennis Cai Fei Chen Guihai Chen Jilei Chen Wei Chen Yanqing Chen Yuansen Chen Sheng Cheng 0002 Shuguang Cheng Wenxue Cheng Yong Cui 0001 Zhengqi Cui Wan-Chun DouWanchun Dou Jiong Duan Xiaodong Duan Wentao Fan Binzhang Fu Jiaqi Gao Rong Gu 0001 Donghai Han Xinchi Han Keqiang He Chengyuan Huang Tianyi Huang Zhongming Ji Yang Jian Bo Jiang 0003 Weihao Jiang Baochun Li Rui Li 0020 Yubin Li Yuhang Li 0002 Zhiqiang Li Shengkai Lin Xi Lin Zhehao Lin Bingyang Liu Boliang Liu Chang Liu 0001 Kexin Liu Kun Liu Wenfeng Liu Ximeng Liu Yike Liu Yunzhuo Liu Zhuoran Liu Zhuotao Liu Gang Lu Dongliang Lv Yongxi Lv Yongxi Lyu Shu Ma Yingming Mao Ke Meng Lingkun Meng Qingkai Meng 0001 Haixin Nan Rui Ning Shuyao Qi Stefan Schmid 0001 Bo Shi Tao Sun 0010 Wenhao Sun Min Yee Teh Chen Tian 0001 Quan Tian Chenxu Wang 0007 Dongxu Wang Li Wang 0110 Mingyao Wang Qingyue Wang Weiguang Wang Xiaoliang Wang 0001 Xinbing Wang Yizhi Wang 0004 Changbo Wu Dongchao Wu Qi Wu Tao Wu 0011 Yongqing Xi Fu Xiao 0001 Wenli Xiao Yongqiang Xiong Jun Xu 0037 Mingwei Xu 0001 Xiaohu Xu Feiyang Xue Hongwei Yang Qinwei Yang Yongqi Yang Yuqing Yang Hao Yin Zhimeng Yin 0001 Peiwen Yu Zehao Yu Dai Zhang Qizhou Zhang Shengju Zhang Xiao Zhang Xu Zhang 0006 Zhanbang Zhang Zhaochen Zhang Guangyu Zhao Shizhen Zhao Jiaqi Zheng 0001 Chenghu Zhou Zihan Zhu