Abstract: Despite the increased development and use of grid-technologies for solving large-scale computational tasks in various scientific fields, the problem of complexity and efficiency of using distributed grid-resources by end-users, as well as the ensuring the required QoS level is still urgent. The main reasons for this are the complexity of low-level and the absence of full-featured high-level grid tools. The classification of the tasks which are the most suitable for solving in the grid environment is presented in the paper. The issues of supporting different types of tasks at the level of grid middleware as well as at the modern high-level tools are studied in the paper. The paper presents the features of workflow type grid task scheduling taking into account the required parameters of QoS. The results of grid workflow scheduling algorithms research are given in the paper. Based on the analysis the requirements to developed workflow management system and built-in scheduling module have been defined. The results of workflow management system design and implementation are shown. The developed workflow management system can be integrated as an external module to the existing one.

Keywords: grid-environment, workflow, scheduling algorithms, optimization, QoS.

ACM Classification Keywords: C.2.4 Distributed Systems, D.4.1 Process Management.

Link:

GRID WORKFLOW DESIGN AND MANAGEMENT SYSTEM

Volodymyr Kazymyr, Olga Prila, Volodymyr Rudyi

http://www.foibg.com/ijitk/ijitk-vol07/ijitk07-03-p05.pdf