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So far BOINC based desktop Grid systems have been applied at the global computing level. This paper describes an extended version of BOINC called SZTAKI Desktop Grid (SZDG) that aims at using Desktop Grids (DGs) at local (enterprise/institution) level. The novelty of SZDG is that it enables the hierarchical organisation of local DGs, i.e., clients of a DG(More)
Recent investigations on the structure of complex networks have provided interesting results for ecologists. Being inspired by these studies, we analyse a well-defined set of small model food webs. The extinction probability caused by internal Lotka-Volterra dynamics is compared to the position of species. Simulations have revealed that some global(More)
Desktop grids are an emerging trend in grid computing. Interoperabil-ity and resource sharing between different desktop grid projects however is not yet solved. This paper presents an approach of organizing desk-top grids in a hierarchy that makes it possible for lower-level desktop grids to acquire work from the higher level if they have spare resources(More)
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