Hi, my name is Chengxiang Qi. I am currently a second-year master student in computer science at the University of Chinese Academy of Sciences. I completed my undergraduate studies at Tianjin University. My current interests are in deep learning compilers, machine learning systems, and deep learning. In the past, I have also been interested in the Rust programming language and its applications at the system level (OS, Hypervisor, etc.). I am currently interning at Wechat LLM Infra Team.

In the past, I was a research intern in the MSRA System Group, where I focused on two projects:

• microsoft/TileFusion is an experimental C++ macro kernel template library that elevates the abstraction level in CUDA C for tile processing.
• microsoft/FractalTensor is a programming framework that introduces a novel approach to organizing data in deep neural networks (DNNs) as a list of lists of statically-shaped tensors, referred to as a FractalTensor.

During my time at MSRA, I was very fortunate to work with my mentor @lcy-seso, who is a very idealistic and capable researcher! We built the above two projects together and published a paper at SOSP’24.

Before I joined the MSRA system group, I interned at the Operating System Laboratory of Tsinghua University, where I focused on Type-2 hypervisors and network performance on arceos:

• arceos-org/arceos is an experimental modular OS written in Rust. I added hypervisor feature, support for ixgbg 82599 NIC driver and optimized network performance.
• hypercraft is a VMM library written in Rust. It was developed from the hypocaust-2 project, with the main purpose of providing virtualization support for arceos and can be used as a standalone component.

I have done some interesting projects before:

• xv6-rust is a reimplementation of the mit-pdos/xv6-riscv operating system in the Rust programming language. It explores how to use Rust features to build an operating system that is as memory-safe as possible.
• hypocaust-2 is a Type-2 hypervisor built in Rust programming language and it is my first attempt to use RISC-V H Extension.
• hypocaust is a Type-1 hypervisor that traps and emulates S-mode in Rust, inspired by mit-pdos/RVirt.