Execution Management of Scientific Models on Computational Grids

This paper presents ModRunner, a scientific model execution manager running on a Grid platform. ModRunner is part of the MODENA environment. Besides model execution, MODENA also deals with knowledge management in scientific models. It also works as a model library allowing for cataloguing, searching, reusing and generating scientific models. ModRunner is a simple and effective Grid Computing access system that facilitates management of independent task execution on the Grid. In this paper, we present ModRunner running over the Grid Computing middleware OurGrid. As a case study we have been using ModRunner to schedule, submit and manage tasks for the execution of Population Dynamics models.