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Maka - podstawa wypieku

100%

Keller R.

nr 2

Sposob na otylosc

88%

Keller R.

nr 2

56-57

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

45%

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

tom 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.

Towards Deployment of the Remote Instrumentation e-Infrastructure (in the Frame of the DORII Project)

32%

Cheptsov A. , Keller R. , Pugliese R. , Prica M. , Del Linz A. , Plociennik M. , Lawenda M. , Meyer N.

tom Vol. 15, nr 1

65-74

While the majority of e-Infrastructures that are set up within the European Research Area by such projects as EGEE, DEISA etc. are basically focused on providing the high-performance computing support for scientific applications, a diverse set of the scientific communities coming from various fields (e.g. earthquake, environmental science, experimental science communities) develop and operate experimental equipment and remote instrumentation that have not been integrated yet or only partially integrated within the European Grid e-Infrastructure. The Deployment of Remote Instrumentation Infrastructure (DORII) project aims at setting up an advanced Grid-based e-Infrastructure specifically oriented to the support of remote instrumentation devices on Grid extending the level of scientific instruments' exploitation. The paper highlights the main application areas and usage scenarios, key tasks of the Remote Instrumentation Infrastructure’s deployment and presents the joint research architecture for DORII in terms of advanced middleware solutions addressing the main tasks of identified applications.