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With service-oriented architecture entering into the mainstream and the fundamental role security service played in Grid computing, it is necessary and commonplace to integrate security service(s) with other Grid services. However, current ad-hoc, handcrafted and proprietary integrating manners greatly hinder the the newly-integrated service’s QoS(More)
The problem of resource selection in Grid is challenging because of the wide range of selection and the high degree of strangeness. Efficient resource sharing and utilization cannot be achieved without the guarantee of a higher degree of trust relationship. In this paper, reputation mechanism is introduced to resource selection in Grid, which aims at(More)
Reputation-based trust system emerges as a promising mechanism for trust establishment between unknown entities in grid, in which the reliability of first-hand ratings plays a crucial part. In this paper, we propose a pre-evaluating set based bias-tuned approach for dishonest feedback filtering in such system, which has taken reputation's subjective feature(More)
Energy consumption of parallel computers has been becoming the obstruction to higher-performance systems. In this paper, we focus on power optimization of high-performance interconnection networks for MPI applications in high-performance parallel computers. Compared with the past history-based work, we propose the idea of compiler-directed power-aware(More)