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ForgeBench: A Machine Learning Benchmark Suite and Auto-Generation Framework for Next-Generation HLS Tools

21 Apr 2025arXiv:2504.15185links table onlyarchive 2025-07-28

Andy Wanna, Hanqiu Chen, Cong Hao

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Although High-Level Synthesis (HLS) has attracted considerable interest in hardware design, it has not yet become mainstream due to two primary challenges. First, current HLS hardware design benchmarks are outdated as they do not cover modern machine learning (ML) applications, preventing the rigorous development of HLS tools on ML-focused hardware design. Second, existing HLS tools are outdated because they predominantly target individual accelerator designs and lack an architecture-oriented perspective to support common hardware module extraction and reuse, limiting their adaptability and broader applicability. Motivated by these two limitations, we propose ForgeBench, an ML-focused benchmark suite with a hardware design auto-generation framework for next-generation HLS tools. In addition to the auto-generation framework, we provide two ready-to-use benchmark suites. The first contains over 6,000 representative ML HLS designs. We envision future HLS tools being architecture-oriented, capable of automatically identifying common computational modules across designs, and supporting flexible dataflow and control. Accordingly, the second benchmark suite includes ML HLS designs with possible resource sharing manually implemented to highlight the necessity of architecture-oriented design, ensuring it is future-HLS ready. ForgeBench is open-sourced at https://github.com/hchen799/ForgeBench .

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