Yilin Lin developed bf16 support for Sparse Group Index Selection in the ROCm/FBGEMM repository, expanding floating-point compatibility for CUDA-enabled GPUs. By replacing the FBGEMM_DISPATCH_FLOAT_AND_HALF macro with FBGEMM_DISPATCH_FLOATING_TYPES, Yilin enabled efficient handling of bf16 data types, which can improve performance on compatible hardware. The work involved C++, CUDA, and GPU programming, focusing on simplifying the floating-point dispatch logic to reduce edge cases and enhance maintainability. Although no bugs were fixed during this period, the feature broadened hardware support and streamlined code paths, reflecting a focused and technically deep contribution to the repository’s floating-point type handling.