In March 2025, John Kosaian focused on stabilizing GEMM kernel execution for the intel/sycl-tla repository, addressing critical issues affecting SM90 beta=1 workloads. He resolved hangs and stream-K launch errors by refining synchronization logic, specifically adjusting load_order_barrier placement and synchronization points within the CUDA-based kernel. John also introduced a bypass parameter to the occupancy calculation, allowing for more robust handling of edge cases on SM90 hardware. Working primarily in C++ and leveraging expertise in high-performance computing and low-level optimization, his targeted bug fix improved runtime stability and predictability, reducing debugging cycles and supporting smoother deployment of GEMM workloads.