10th EAI International Conference on Performance Evaluation Methodologies and Tools

Research Article

Optimising Hidden Stochastic PERT Networks

  • @INPROCEEDINGS{10.4108/eai.25-10-2016.2267060,
        author={Tommi Pesu and William Knottenbelt},
        title={Optimising Hidden Stochastic PERT Networks},
        proceedings={10th EAI International Conference on Performance Evaluation Methodologies and Tools},
        publisher={ACM},
        proceedings_a={VALUETOOLS},
        year={2017},
        month={5},
        keywords={dispersion stochastic pert trade-off metric},
        doi={10.4108/eai.25-10-2016.2267060}
    }
    
  • Tommi Pesu
    William Knottenbelt
    Year: 2017
    Optimising Hidden Stochastic PERT Networks
    VALUETOOLS
    ACM
    DOI: 10.4108/eai.25-10-2016.2267060
Tommi Pesu1,*, William Knottenbelt1
  • 1: Imperial College London
*Contact email: tommi.pesu13@imperial.ac.uk

Abstract

This paper introduces a technique for minimising subtask dispersion in hidden stochastic PERT networks. The technique improves on existing research in two ways. Firstly, it enables subtask dispersion reduction in DAG structures, whereas previous techniques have only been applicable to single-layer split--merge or fork--join systems. Secondly, the exact distributions of subtask processing times do not need to be known, so long as there is some means of generating samples. The technique is further extended to use a metric which trades off subtask dispersion and task response time.