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Complex scientific workflows are now commonly executed on global grids. With the increasing scale complexity, heterogeneity and dynamism of grid environments the challenges of managing and scheduling these workflows are augmented by dependability issues due to the inherent unreliable nature of large-scale grid infrastructure. In addition to the traditional fault tolerance techniques, specific checkpoint-recovery...
In this paper we present a fault-tolerant, collaborative peer-to-peer object storage architecture with adaptive topology and efficient multidimensional range search capabilities. Every stored object has a fixed set of index properties, whose ranges of values form a multidimensional geometric property space. The architecture efficiently supports multidimensional range queries by mapping the peer identifiers...
In this paper, we have investigated the issues related to resource allocation, fault-tolerance and application scheduling in the context of computational grid economy, arises due to the autonomous nature of grid environment. Our proposed approach provides a novel solution for fault-tolerant resource allocation and task scheduling algorithm that executes userpsilas job in case of resource failure and...
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