Csaba Attila Marosi

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Desktop Grids represent an alternative trend in Grid computing using the same software infrastructure as Volunteer Computing projects, such as BOINC. Applications to be deployed on a BOINC infrastructure need special preparations. However, there are many legacy applications, that have either no source code available or would require too much effort to port.(More)
Desktop Grids, such as XtremWeb and BOINC, and Service Grids, such as EGEE, are two different approaches for science communities to gather computing power from a large number of computing resources. Nevertheless, little work has been done to combine these two Grid technologies in order to establish a seamless and vast Grid resource pool. In this paper we(More)
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)
Solving workflow management system's Distributed Computing Infrastructure (DCI) incompatibility and their workflow interoperability issues are very challenging and complex tasks. Workflow management systems (and therefore their workflows, workflow developers and also their end-users) are bounded tightly to some limited number of supported DCIs, and efforts(More)
Cloud Computing enables the construction and the provisioning of virtualized service-based applications in a simple and cost effective outsourcing to dynamic service environments. Cloud Federations envisage a distributed, heterogeneous environment consisting of various cloud infrastructures by aggregating different IaaS provider capabilities coming from(More)
The Desktop Grid model harvests unused CPU cycles of connected computers. In this report we present a concept how separate Desktop Grids can be used as building blocks for larger scale grids by organizing them in a hierarchical tree. We present a prototype implementation and show the challenges and security considerations we discovered. We describe methods(More)