Worked on the jeejeelee/vllm repository to address a critical issue affecting numerical stability in GPU-accelerated workflows. Focused on improving the robustness of GDN KKT calculations on Hopper GPUs, the developer resolved a precision loss problem by aligning the tl.dot operand layout with WGMMA, ensuring accurate and stable computations in production environments. This work involved deep knowledge of GPU programming, numerical computing, and Python, with careful attention to code provenance and review readiness. No new features were introduced during this period, as the primary contribution centered on strengthening the reliability and correctness of existing numerical routines for live deployments.