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Technical University of Crete
Technical University of Crete
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| URI: | http://purl.tuc.gr/dl/dias/394343F6-3076-4337-B988-AFD4B156D1AD | ||
| Year | 2007 | ||
| Type of Item | Conference Full Paper | ||
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| Bibliographic Citation | I. Papaefstathiou, D. Pnevmatikatos, I. Mavroidis, "A Fast FPGA-Based 2-Opt Solver for Small-Scale Euclidean Traveling Salesman Problem," in 15th Annual IEEE Symposium on Field-Programmable Custom Computing Machines, 2007, pp. 13 - 22. doi: 10.1109/FCCM.2007.40 https://doi.org/10.1109/FCCM.2007.40 | ||
| Appears in Collections |
In this paper we discuss and analyze the FPGA-based implementation of an algorithm for the traveling salesman problem (TSP), and in particular of 2-Opt, one of the most famous local optimization algorithms, for Euclidean TSP instances up to a few hundred cities. We introduce the notion of "symmetrical 2-Opt moves" which allows us to uncover fine-grain parallelism when executing the specified algorithm. We propose a novel architecture that exploits this parallelism, and demonstrate its implementation in reconfigurable hardware. We evaluate our proposed architecture and its implementation on a state-of-the-art FPGA using a subset of the TSPLIB benchmark, and find that our approach exhibits better quality of final results and an average speedup of 600% when compared with the state-of-the-art software implementation. Our approach produces, to the best of our knowledge, the fastest to date TSP 2-Opt solver for small-scale Euclidean TSP instances.
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