Cluster Computing

, Volume 22, Issue 3, pp 953–964 | Cite as

Multi-objective constraint task scheduling algorithm for multi-core processors

  • Ying XieEmail author
  • Jinzhao Wu


A task scheduling algorithm is an effective means to ensure multi-core processor system efficiency. This paper defines the task scheduling problem for multi-core processors and proposes a multi-objective constraint task scheduling algorithm based on artificial immune theory (MOCTS-AI). The MOCTS-AI uses vaccine extraction and vaccination to add prior knowledge to the problem and performs vaccine selection and population updating based on the Pareto optimum, thereby accelerating the convergence of the algorithm. In the MOCTS-AI, the crossover and mutation operators and the corresponding use probability for the task scheduling problem are designed to guarantee both the global and local search ability of the algorithm. Additionally, the antibody concentration in the the MOCTS-AI is designed based on the bivariate entropy. By designing the selection probability in consideration of the concentration probability and fitness probability, antibodies with high fitness and low concentration are selected, thereby optimizing the population and ensuring its diversity. A simulation experiment was performed to analyze the convergence of the algorithm and the solution diversity. Compared with other algorithms, the MOCTS-AI effectively optimizes the scheduling length, system energy consumption and system utilization.


Multi-core processor Multi-objective constraint Artificial immune Task scheduling 



The funding was provided by The Fundamental Research Funds for the Central Universities, Southwest University for Nationalities (Grant No. 2015NZYQN28), National Natural Science Foundation of China (Grant Nos. 11461006 and 11371003) and Special Fund for Scientific and Technological Bases and Talents of Guangxi (Grant No. 2016AD05050).


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© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.The Key Laboratory for Computer Systems of the State Ethnic Affairs CommissionSouthwest Minzu UniversityChengduChina
  2. 2.School of Computer Science and TechnologySouthwest Minzu UniversityChengduChina
  3. 3.Chengdu Institute of Computer ApplicationChinese Academy of SciencesChengduChina
  4. 4.University of the Chinese Academy of SciencesBeijingChina
  5. 5.Guangxi Key Laboratory of Hybrid Computational and IC Design AnalysisGuangxi University for NationalitiesNanningChina

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