Using the method of imbedded markov chain , probability generating funtion and laplace transform , we can obtain the mean queue length , mean waiting time for each queue and generalize this conclusion to multi - priority queues . this chapter includes four sections . in the first section , the detailed description of the system is given , and the set of stationary equations of the imbedded markov chain is obtained 第二章考虑的是一个三个队输入的带优先权非抢先的m m 1系统，这是一个连续时间的排队系统，采用嵌入马尔可夫链的方法，以母函数和拉普拉斯变换为工具求出了三个队的平均队长和平均等待时间，并给出了此结论推广到n个队的根据和方法。
Abstract : an algorithm to resolve the coupling effect problem is proposed during the cross point assignment ( cpa ) stage . in the algorithm , the priority queue concept and the rip - up and reroute strategy are combined to control crosstalk noise caused by interconnect coupling capacitance . first , the nets are arranged into different priority queues according to their weighted sum of their length and criticality . then , the cpa problem for one queue of nets is translated into a linear assignment problem . after the assignment of one queue of nets , a post - cpa checking routine is performed to check and rip up the net pairs which violate the crosstalk noise constraint and then push them into the next queue to be reassigned . the algorithm is tested by a set of bench mark examples , and the experimental results are promising 文摘:提出了一种在过点分配阶段解决噪声耦合效应问题的算法.该算法采用优先队列同拆线重布策略相结合的方法,控制由互连线耦合电容引起的串扰噪声.算法中,首先按照线长和约束限制,将线网划分到若干个优先队列中.然后,将每个优先队列的过点分配问题转换为线性分配问题.在完成一个线网队列的分配后,通过过点分配后处理过程检查串扰约束满足情况,对违反约束的线网对进行拆除,放入后续线网队列进行重新分配.实验数据表明,该算法能够取得好的效果
Compared with traditional cluster , the cooperative - type - cluster has carried the sync net packets from all real server ’ s network cards to director and set up a priority queue of sync net packets for dmcs , then it has transmitted them through the cooperation of nodal servers and directoer , it has made that the nodeal server lost efficiency suddenly or automatically joined or broke away from the cluster not influence the whole system ’ s normal running again ; meanwhile , it can avoid reducing handling capacity even appearing phenomenon of “ living locking ” in high load 与传统集群相比,合作式集群从各真实服务器端网卡报文队列中分离出请求报文移至负载均衡器端,建立针对分布式测控系统的请求任务报文优先权排队队列,通过节点服务器与负载均衡器合作进行报文转发,使得节点服务器突然失效或自动加入脱离集群不再影响整个系统的正常运行;同时,也能避免在高负载下处理能力降低甚至出现“活锁”的现象。
