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2 Computational Methods in Science and Technology

2 2009

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Remote Oceanographic Instrumentation Integrated in a GRID Environment

Salon S., Poulain P.-M., Mauri E., Gerin R., Adami D., Davoli F.

Computational Methods in Science and Technology

2009

Vol. 15, nr 1

49-55

The observations provided by oceanographic remote instruments are essential to the purposes of the operational oceanography that represents a constantly growing tool to monitor and predict the state of the marine resources. The management of a network of instruments deployed in the Mediterranean Sea is a complex task that may be greatly supported by the GRID technology. This paper presents the activity planned by the DORII EU-FP7 project concerning the floats and the glider. The aim of the project is to demonstrate the potentiality of the state-of-the-art eInfrastructure in the integration of the data driven control/interaction workflow that characterizes the instruments. We describe the communication between the elements of the workflow and the associated network topology.

Porting the OPATM-BFM Application to a Grid e-Infrastructure – Optimization of Communication and I/O Patterns

Cheptsov A., Dichev K., Keller R., Lazzari P., Salon S.

Computational Methods in Science and Technology

2009

Vol. 15, nr 1

9-19

OPATM-BFM is an off-line three-dimensional coupled eco-hydrodynamic simulation model used for biogeochemical and ecosystem-level predictions. This paper presents the first results of research activities devoted to the adaptation of the parallel OPATMBFM application for an efficient usage in modern Grid-based e-Infrastructures. For the application performance on standard Grid architectures providing generic clusters of workstations, such results are important. We propose a message-passing analysis technique for communication-intensive parallel applications based on a preliminary application run analysis. This technique was successfully used for the OPATM-BFM application and allowed us to identify several optimization proposals for the current realization of the communication pattern. As the suggested improvements are quite generic, they can be potentially useful for other parallel scientific applications.