Worked on enhancing the ROCm/aiter repository by implementing device communicator performance improvements focused on efficient data handling and scalability. Developed a QR communication cap to restrict QR usage to prefill scenarios, and introduced resource-aware gating for quick all-reduce operations based on input size. These changes reduced unnecessary operations and improved throughput by optimizing resource utilization. The work involved performance engineering practices such as cap-based tuning and maintainability improvements, with all changes traceable through clear commits. Utilized Python and CUDA programming skills to address device communication challenges, resulting in a more efficient and scalable device communicator within the ROCm/aiter project.