Pyxis: Unlocking Multi-NIC Bandwidth for Incast Traffic in AI Clusters
USENIX NSDI, Providence, RI, USA, May 2027
About Me
Hi, I am Wenxue Li, a Senior Researcher (Alibaba Star) at Alibaba Group. My recent work focuses on improving network performance and reliability for large-scale AI training and inference in production clusters.
I received my Ph.D. in Computer Science and Engineering from Hong Kong University of Science and Technology (HKUST) in 2026, where I was advised by Prof. Kai Chen. Prior to that, I received my B.Sc. in Electronic Science and Technology from Zhejiang University in 2021.
Feel free to reach out if you are interested in my work.
News
Sep. 2026 Shortlisted for Rising Stars Women in Engineering.
Sep. 2026 Understanding Communication Predictability of Distributed LLM Training accepted to IEEE Transactions on Networking.
Jul. 2026 Pyxis accepted to NSDI 2027.
Jul. 2026 DCP accepted to IEEE/ACM Transactions on Networking.
Jun. 2026 FLB accepted to IEEE/ACM Transactions on Networking.
Apr. 2026 FCP accepted to SoCC 2026.
Apr. 2026 Invited to serve on INFOCOM 2027 TPC. Welcome to submit.
Mar. 2026 Invited as a PG graduate speaker at HKUST CSE RTF 2026.
Jan. 2026 Themis accepted to EuroSys 2026.
Dec. 2025 PolicyCache accepted to NSDI 2026.
Sep. 2025 DCP awarded SIGCOMM'25 Best Student Paper Award Honorable Mention!
Aug. 2025 LTP and MFS accepted to EuroSys 2026.
Aug. 2025 Cepheus accepted to IEEE/ACM Transactions on Networking.
Apr. 2025 DCP, CEIO and MixNet accepted to SIGCOMM 2025.
Apr. 2025 FLB accepted to ATC 2025.
Apr. 2025 Themis and MCC accepted to APNet 2025.
Mar. 2025 FuseLink accepted to OSDI 2025.
May 2024 FlowSail accepted to IEEE/ACM Transactions on Networking.
Apr. 2024 Understanding AI workloads accepted to APNet 2024.
Oct. 2023 Cepheus accepted to HPCA 2024.
July 2023 FlowSail accepted to ICNP 2023.
July 2022 SRNIC accepted to NSDI 2023.
Selected Publications
* indicates co-first authors; # indicates co-corresponding authors.
Enabling Packet Spraying over Commodity RNICs with In-Network Support
ACM EuroSys, Edinburgh, UK, April 2026
Revisiting RDMA Reliability for Lossy Fabrics
ACM SIGCOMM, Coimbra, Portugal, September 2025
🏆 Best Student Paper Award Honorable Mention
FLB: Fine-grained Load Balancing for Lossless Datacenter Networks
USENIX ATC, Boston, MA, USA, July 2025
Cepheus: Accelerating Datacenter Applications with High-Performance RoCE-Capable Multicast
IEEE HPCA, Edinburgh, Scotland, March 2024
Professional Services
Technical Program Committee
- IEEE INFOCOM 2027
Artifact Evaluation Committee
- ACM SIGCOMM 2026
Invited Talks
Revisiting RDMA Reliability for Lossy Fabrics
Seminar @ Best Paper Deep Dive, Huang Danian Chaspark, Jan. 2026
Seminar @ ByteDance, Oct. 2025Towards Efficient and Scalable RDMA Networking for Datacenter Applications
Seminar @ University of Science and Technology of China, Dec. 2025
Teaching
Teaching Assistant · HKUST
- COMP 3511 - Operating Systems, 2025 Spring
- COMP 5621 - Computer Networks, 2023 Fall
- COMP 3511 - Operating Systems, 2022 Fall
- COMP 4651 - Cloud Computing and Big Data Systems, 2022 Spring
Honors and Awards
Rising Stars Women in Engineering (Shortlisted) (2026)
SIGCOMM'25 Best Student Paper Award Honorable Mention
SIGCOMM 2025 N2Women Travel Grants (2025)
ATC 2025 Travel Grants (2025)
HPCA 2024 Travel Grants (2024)
HKUST Research Travel Grants (2023 Fall, 2024 Spring, 2024 Summer)
HKUST Postgraduate Studentship (2021-2025)
First-class Scholarship, ZJU (2019)
Zhejiang Daily - Alibaba New Media Scholarship, ZJU (2019)
Outstanding Student Leader, ZJU (2018)
Experience
Research Intern @ Huawei Hong Kong Research Center, Hong Kong SAR (June 2024 - July 2025)
Software Engineer Intern @ ByteDance, Hangzhou, China (July 2020 - June 2021)