A hybrid heuristic-genetic algorithm for task scheduling in heterogeneous multi-core system

Authors:
Chuan Wang;Jianhua Gu;Yunlan Wang;Tianhai Zhao
Affiliations:
School of Computer, NPU HPC Center, Xi'an, China;School of Computer, NPU HPC Center, Xi'an, China;School of Computer, NPU HPC Center, Xi'an, China;School of Computer, NPU HPC Center, Xi'an, China
Venue:
ICA3PP'12 Proceedings of the 12th international conference on Algorithms and Architectures for Parallel Processing - Volume Part I
Year:
2012

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Abstract

Task scheduling on heterogeneous multi-core systems is NP-complete problem. This paper proposes a novel hybrid static scheduling algorithm named Hybrid Successor Concerned Heuristic-Genetic Scheduling (HSCGS) algorithm. The algorithm is a combination of heuristic and genetic scheduling algorithm. In the first phase we propose a heuristic algorithm named Successor Concerned List Heuristic Scheduling (SCLS) to generate a high quality scheduling result. SCLS algorithm takes the impact of current task's scheduling to its successor into account. The second phase implements an Improved Genetic Algorithm (IGA) for scheduling, to optimize the scheduling results of SCLS iteratively. The comparison experiments are based on both random generated applications and some real world applications. The performance of HSCGS is compared with some famous task scheduling algorithms, such as HEFT and DLS. The results show that HSCGS is the best of them, and the advantages go up with the increase of the heterogeneous factor of inter-core link bandwidth.