[IEEE 2009 6th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON) - Chonburi, Thailand (2009.05.6-2009.05.9)] 2009 6th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology - On performance study of the Global Arrays toolkit on homogeneous Grid computing environments: Multi-level topology-aware and multi-level parallelism