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An Open-Source HW-SW Co-Development Framework Enabling Efficient Multi-Accelerator Systems

Published: August 20, 2025 | arXiv ID: 2508.14582v1

By: Ryan Albert Antonio , Joren Dumoulin , Xiaoling Yi and more

Potential Business Impact:

Makes AI faster by connecting computer parts better.

Business Areas:
Application Specific Integrated Circuit (ASIC) Hardware

Heterogeneous accelerator-centric compute clusters are emerging as efficient solutions for diverse AI workloads. However, current integration strategies often compromise data movement efficiency and encounter compatibility issues in hardware and software. This prevents a unified approach that balances performance and ease of use. To this end, we present SNAX, an open-source integrated HW-SW framework enabling efficient multi-accelerator platforms through a novel hybrid-coupling scheme, consisting of loosely coupled asynchronous control and tightly coupled data access. SNAX brings reusable hardware modules designed to enhance compute accelerator utilization, and its customizable MLIR-based compiler to automate key system management tasks, jointly enabling rapid development and deployment of customized multi-accelerator compute clusters. Through extensive experimentation, we demonstrate SNAX's efficiency and flexibility in a low-power heterogeneous SoC. Accelerators can easily be integrated and programmed to achieve > 10x improvement in neural network performance compared to other accelerator systems while maintaining accelerator utilization of > 90% in full system operation.

Country of Origin
🇧🇪 Belgium

Repos / Data Links

Page Count
8 pages

Category
Computer Science:
Hardware Architecture