Mengwei Xu
Associate Professor, Doctoral Advisor
State Key Laboratory of Networking and Switching Technology Computer Science Department
Beijing University of Posts and Telecommunications (BUPT)
Email: mwx AT bupt DOT edu DOT cn
Office: 1107, Research Building (科研楼), BUPT (Xituchen campus), Haidian District, Beijing, P.R.China, 100876
Here is my Curriculum Vitae.
I'm an associate professor in Beijing University of Posts and Telecommunications (BUPT). I received my doctoral and bachelor degrees from Peking University in 2020 and 2015, co-advised by Prof. Gang Huang and Prof. Xuanzhe Liu.
I always look for highly self-motivated undergraduates and graduates. Please directly send your CV to me if you find my research interesting.Research
I work on systems software, with a focus on resource-constrained platforms like smartphones and satellites.
For now, the long-term, central question that I seek to answer through my research is: "when AGI comes, what kind of system software will be needed".
(✓) I'm now working on following directions.
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Efficient on-device (multimodal) LLM - Human brains function without clouds, why mobile devices cannot?
- Models: [MobiCom'24, M4] [arxiv'24,PhoneLM]
- Algorithms: [ATC'24, FwdLLM] [SenSys'24, PieBridge] [NeurIPS'24, SILENCE] [arxiv'24, Recall]
- Systems: [ASPLOS'25, llm.npu] [TMC'24, EdgeLLM] [arxiv'24, Libra] [arxiv'23, EdgeMoE]
- Measurements and surveys: [CSUR'24, Efficient LLM] [arxiv'24, Small Language Model]
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LLM-powered mobile agent - The vision is to democratize the access to modern electronic devices for every person (e.g., those with disabilities or are elderly) at any time (e.g., driving).
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Satellite computing - we take satellites as the next-generation platform that will carry exciting applications that are unaffordable on the ground. What differentiates us from others is that we have our own satellite platform in orbit and ground stations!
- Rust OS for satellites [ATC'24, RFL]
- Satellite platform [MobiCom'24, Measurement] [IEEE Satellite'22, Satellite Server]
(✘) I used to working on following topics but not anymore!
- Efficient on-device AI in pre-LLM era.
- Federated learning.
- Computing at edge clouds.
Open-sourced Projects
Our team is passionate about building open-sourced systems that can benefit others.
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mllm - a fast and lightweight multimodal LLM inference engine for mobile devices.
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RROS - a dual-kernel, Rust-based OS for satellites or other scenarios that need both real-time and general-purpose abilities. RROS = RTOS (Rust) + Linux (C). RROS has been sent into space already!
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LlamaTouch - Mobile Agents, testbed, and datasets.