1. An Open-Source Fast Parallel Routing Approach for Commercial FPGAs
- Author
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Zang, Xinshi, Lin, Wenhao, Lin, Shiju, Liu, Jinwei, and Young, Evangeline F. Y.
- Subjects
Computer Science - Distributed, Parallel, and Cluster Computing ,Computer Science - Networking and Internet Architecture - Abstract
In the face of escalating complexity and size of contemporary FPGAs and circuits, routing emerges as a pivotal and time-intensive phase in FPGA compilation flows. In response to this challenge, we present an open-source parallel routing methodology designed to expedite routing procedures for commercial FPGAs. Our approach introduces a novel recursive partitioning ternary tree to augment the parallelism of multi-net routing. Additionally, we propose a hybrid updating strategy for congestion coefficients within the routing cost function to accelerate congestion resolution in negotiation-based routing algorithms. Evaluation on public benchmarks from the FPGA24 routing contest demonstrates the efficacy of our parallel router. It achieves a 2x speedup compared to the academic serial router RWRoute. Furthermore, when compared to the industry-standard tool Vivado, our approach not only delivers a 2x acceleration but also yields a notable 31% enhancement in critical-path wirelength.
- Published
- 2024