JFreeSim: A Grid Simulation Tool Based on MTMSMR Model.

Due to the non-repeatability of the grid environment, limitation comes out when conducting grid performance analysis in real environment. Therefore, grid simulation tool is used extensively as an important research tool. This paper proposes JFreeSim, a new grid simulation tool based on multiple tasks, multiple schedulers and multiple resources (MTMSMR) model. As a modular and extensible simulation tool, JFreeSim realizes many kinds of entity modeling and communication mechanism between all entities, and makes system simulation accord with the characteristics of the grid environment. Experiments indicate that JFreeSim can provide users with flexibility in configuring and meet requirements of different system architectures and applications, and the simulation results are as expected. [ABSTRACT FROM AUTHOR]