GRID GATEWAY: ENABLING MESSAGE-PASSING IN A DISTRIBUTED COMPUTING ENVIRONMENT

The paper presents the flexible mechanism of a low-level inter-cluster communication protocol based on Grid Gateway, which enables external communication by delivering messages between clusters. Messages are forwarded in each cluster by Grid gateway nodes, which can act as computing nodes simultaneously. The number of gateway nodes varies from external communication load. The protocol can be used to transfer messages in local cluster. The multi-protocol method allows a traditional single-image of MPI to be laid over distributed clusters. The performance of inter-cluster communication based on Grid gateway is very high in the high-speed inter-cluster network so that geographically distributed clusters can be integrated through grid middleware and grid-enabled MPI environment into a high-performance computational Grid