Chen Li contributed to the ROCm/xla repository by focusing on runtime stability for asynchronous collective operations. During this period, Chen reverted a previous NCCL optimization to restore the default clique optimization behavior, addressing issues with predictability and throughput. Additionally, Chen developed a new schedule postprocessing pass that refines attributes for asynchronous collectives, aiming to optimize runtime behavior and lay the groundwork for future enhancements. The work leveraged expertise in compiler optimization, distributed systems, and GPU computing, using C++ and Proto to implement these changes. This engineering effort demonstrated depth in addressing complex runtime challenges within high-performance computing environments.