Worked on the ROCm/xla repository to enhance the stability of asynchronous collective operations in distributed GPU computing environments. Focused on compiler optimization, the developer reverted a previous NCCL optimization to restore the default clique optimization behavior, addressing runtime unpredictability. They introduced a new schedule postprocessing pass that refines attributes for asynchronous collectives, aiming to improve throughput and runtime consistency. The work was implemented using C++ and Proto, leveraging expertise in high-performance computing and distributed systems. These changes laid the foundation for future performance improvements while ensuring more predictable execution, reflecting a methodical approach to runtime stability and system reliability.