Operational and organisation aspects of the Advanced Computing Services over national, regional and international networks
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The CHAIN project aims to provide a vision of a harmonized and optimized interaction model for e-Infrastructures and specifically Grid interfaces between Europe and the rest of the world. The project deals with elaborating a strategy and defining the instruments in order to ensure coordination and interoperation of the European Grid Infrastructures with other external e- Infrastructures. Moreover, the project produces technical and sustainability-related guidelines for the Grid and wider Advanced Computing Services to support this coordination and interoperation. The project draws on previous national and regional experiences and lessons learned in other European eInfrastructure activities, consolidates them, and supports them. This paper first gives a brief introduction and overview of the CHAIN project, and then focuses on a few key areas of particular relevance for Sub-Saharan Africa. First, guidelines how to set up National Grid Initiatives are presented – briefly covering the operational, organizational and policy models on the national level. This is strongly based on the SEE-GRID model which has been trailed and tested successfully. Due to size of the paper, not all details can be provided and the reader is referred to supporting documentation. Second, the paper also includes the case studies for regional organization of computational resource sharing and joint operations of Advanced Computing Services, enabling international research over a spectrum of scientific fields. The case study again is the South-East European region, including both Grid Computing and High-Performance Computing. Finally, the sustainability-oriented recommendations for Africa are given, based on the work in the CHAIN project and the related sustainability study which has been carried out for Africa.