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一种基于经济模型的网格资源调度算法 总被引:4,自引:0,他引:4
将贪婪算法推广,针对计算网格提出了一种基于经济模型的资源调度算法.将网格计算环境下一组相互独立的计算任务(Meta-Task)的资源调度问题看作是具有限定条件的最优化问题,根据网格用户提供的“deadline”和“budget”,每次选择使得执行最短的任务进行调度.通过在Gridsim环境下的分析与比较,该算法在满足用户要求的QoS需求同时,能够以尽可能少的时间完成任务. 相似文献
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Current grid authentication frameworks are achieved by applying the standard SSL authentication protocol (SAP). The authentication process is very complicated, and therefore, the grid user is in a heavily loaded point both in computation and in communication. Based on identity-based architecture for grid (IBAG) and corresponding encryption and signature schemes, an identity-based authentication protocol for grid is proposed. Being certificate-free, the authentication protocol aligns well with the demands of grid computing. Through simulation testing, it is seen that the authentication protocol is more lightweight and efficient than SAP, especially the more lightweight user side. This contributes to the larger grid scalability. 相似文献
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Current grid authentication frameworks are achieved by applying the standard SSL authentication protocol (SAP). The authentication process is very complicated, and therefore, the grid user is in a heavily loaded point both in computation and in communication. Based on identity-based architecture for grid (IBAG) and corresponding encryption and signature schemes, an identity-based authentication protocol for grid is proposed. Being certificate-free, the authentication protocol aligns well with the demands of grid computing. Through simulation testing, it is seen that the authentication protocol is more lightweight and efficient than SAP, especially the more lightweight user side. This contributes to the larger grid scalability. 相似文献
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