CASS: Nvidia to AMD Transpilation with Data, Models, and Benchmark
Ahmed Heakl LG Corporation, Gustavo Bertolo Stahl, Sarim Hashmi Mohamed bin Zayed University of Artificial Intelligence, Seung Hun Eddie Han Inception AI and Mohamed bin Zayed University of Artificial Intelligence, Mukul Ranjan MBZUAI, Arina Kharlamova, Salman Khan Mohamed bin Zayed University of Artificial Intelligence and Australian National University, Abdulrahman Mahmoud Mohamed bin Zayed University of Artificial Intelligence
Cross-architecture GPU code transpilation is essential for unlocking low-level hardware portability, yet no scalable solution exists. We introduce CASS, the first dataset and model suite for source- and assembly-level GPU translation (CUDA ↔ HIP, SASS ↔ RDNA3). CASS contains 60k verified host-device code pairs, enabling learning-based translation across both ISA and runtime boundaries. We generate each sample using our automated pipeline that scrapes, translates, compiles, and aligns GPU programs across vendor stacks. Leveraging CASS, we train a suite of domain-specific translation models that achieve 88.2% accuracy on CUDA → HIP and 69.1% on SASS → RDNA3, outperforming commercial baselines including GPT-5.1, Claude-4.5, and Hipify by wide margins. Generated code matches native performance in 85% of cases, preserving both runtime and memory behavior. To support rigorous evaluation, we introduce CASS-Bench, a curated benchmark spanning 18 GPU domains with ground-truth execution. All data, models, and evaluation tools will be released as open source to support progress in GPU compiler tooling, binary compatibility, and LLM-guided code translation.
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Proceedings of the 64th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers) · 2026 · 正式发表