Dynamic Dependent Tasks Assignment for Grid Computing

  • Authors:
  • Meriem Meddeber;Belabbas Yagoubi

  • Affiliations:
  • University of Mascara, Algeria;University of Oran, Algeria

  • Venue:
  • International Journal of Grid and High Performance Computing
  • Year:
  • 2011

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Abstract

A computational grid is a widespread computing environment that provides huge computational power for large-scale distributed applications. One of the most important issues in such an environment is resource management. Task assignment as a part of resource management has a considerable effect on the grid middleware performance. In grid computing, task execution time is dependent on the machine to which it is assigned, and task precedence constraints are represented by a directed acyclic graph. This paper proposes a hybrid assignment strategy of dependent tasks in Grids which integrate static and dynamic assignment technologies. Grid computing is considered a set of clusters formed by a set of computing elements and a cluster manager. The main objective is to arrive at a method of task assignment that could achieve minimum response time and reduce the transfer cost, inducing by the tasks transfer respecting the dependency constraints.