Wei Cheng, Frank Penczek, Clemens Grelck, Raimund Kirner, Bernd Scheuermann, Alex Shafarenko, 'Modeling Streams-based Variants of Ant Colony Optimisation for Parallel Systems' in Proceedings: 2nd HiPEAC Workshop on Feedback-Directed Compiler Optimization for Multi-Core Architectures. Berlin, Germany. 22 January 2013In this paper we present the implementation of a concurrent ant colony optimisation based solver for the combinatorial Single Machine Total Weighted Tardiness Problem (ACO- SMTWTP). We introduce S-Net, a coordination language based on dataflow principles, report on the performance of the implementation and compare it against a sequential and a parallel implementation of the same algorithm in C. As the workload of the optimisation algorithm is highly irregu- lar we consider this application to be an important use-case for runtime measurement directed optimisations of the co- ordination rogram as much as for guiding optimisations of numerical code
