Design of a web-based application of the coupled multi-agent system model and environmental model for watershed management analysis using Hadoop

Yao Hu, Ximing Cai, Benjamin DuPont

Research output: Contribution to journalArticlepeer-review

Abstract

Watersheds are modeled as coupled human and natural systems (CHNSs) by coupling a multi-agent system (MAS) model and an environmental model. The computational intensity and model accessibility of the coupled models are addressed in this paper. Multithreaded programming is used to improve the computational efficiency. As a result, the total running time of the coupled models is reduced by 80%, from one hour for a sequential run to twelve minutes with an eight-core desktop machine, running the model in parallel. To make the coupled models publicly accessible, a web-based application of the coupled models is implemented in the Hadoop-based cloud computing environment, which allows users to access and execute the model simultaneously without an increase in latency. This study presents a case of cyberinfrastructure design for complex watershed management problems, especially to parallelize computational models and provide model accessibility with user scalability.

Original languageEnglish (US)
Pages (from-to)149-162
Number of pages14
JournalEnvironmental Modelling and Software
Volume70
DOIs
StatePublished - Aug 1 2015

Keywords

  • Apache Hadoop
  • Coupled human and natural system
  • Multi-agent system
  • Parallel computing
  • Web application

ASJC Scopus subject areas

  • Software
  • Environmental Engineering
  • Ecological Modeling

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