Analysis and Optimization of Performance Characteristics for MPI Parallel Scientific Applications on the Grid (A Case Study for the OPATM-BFM Simulation Application)

Over the last years, Grid computing has become a very important research area. The Grid allows the parallel execution of scientific applications in a heterogeneous infrastructure of geographically distributed resources. Parallel applications can foremost benefit from a Grid infrastructure in terms of performance and scalability improvement. However, performance expectations from porting an application to the Grid are considerably limited due to several factors, bottlenecks in the implementation of communication patterns are in the back of. Based on the analysis of the OPATM-BFM oceanographic application, we elaborate the strategy of the communication-intensive parallel applications analysis. This allowed us to identify several optimization proposals for the current realization of the communication pattern and improve the performance and scalability of the OPATM-BFM. As the suggested improvements are quite generic, they can be potentially useful for other parallel scientific applications.