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PARADOXICAL DEGRADATION OF PERFORMANCE UNDER NASH NON-COOPERATIVE OPTIMIZATION IN SYMMETRIC NETWORK SYSTEMS

机译:纳什非协作优化在对称网络系统下性能的矛盾劣化

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A distributed system consisting of symmetric nodes (hosts or computers) that are mutually connected by communication lines and that have identical arrival of jobs is considered. The situation where no node can reduce its mean response time by unilaterally making another decision on forwarding jobs to other nodes is the Nash equilibrium. It is surprising that there exist cases of paradoxical performance degradation where the availability of communication means connecting nodes degrades the mean response time of every node in such a symmetric system. It is notable that there exist cases where paradoxes may bring unlimitedly large degradation of performance.
机译:考虑由通信线路相互连接的对称节点(主机或计算机)以及具有相同的作业到达的分布式系统。没有节点可以通过单方面对其他节点转发作业的另一决定来减少其平均响应时间的情况是纳什均衡。令人惊讶的是,存在矛盾的性能下降的情况,其中通信装置连接节点的可用性降低了这种对称系统中每个节点的平均响应时间。值得注意的是,存在悖论可能会带来无限地劣化性能的情况。

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