Nowadays, the parallel system performance evaluation is the hot spot topicIt's helpful to improve the parallel system performance to establish a scientific evaluation modelIn this paper, using of analytic hierarch...
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Nowadays, the parallel system performance evaluation is the hot spot topicIt's helpful to improve the parallel system performance to establish a scientific evaluation modelIn this paper, using of analytic hierarchy process and the fuzzy mathematics theory, the multi-level fuzzy synthetic evaluation model is established, the performance index system is defined and the parallel system performance evaluation process is realized.
A 2n×2n n-stage, routable, bit-permuting network is called a banyan-type network, which has self-routing property by guide transform and trace transform. Some researchers analyzed self-routing property of a banya...
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A 2n×2n n-stage, routable, bit-permuting network is called a banyan-type network, which has self-routing property by guide transform and trace transform. Some researchers analyzed self-routing property of a banyan-type network and tandem connection of banyan-type networks not about the number of arbitrary stages. When network is constituted by many mixed banyan-type nodes, self-routing property only applied in node not network level. So firstly this passage analyses self-routing property of cascading banyan-type network based on bit-permuting exchange. Secondly it proposes a method to resolve self-routing problem of the n (n≥2log2N) stages N×N banyan-type network . Then it defines two reconfigurable manipulation on bit-permuting to divide switching source to different slices. Finally it uses the method and the definition to realize self-routing in the network level of mixed banyan-type nodes.
Multipath basedrouting andswitching can achieve network-wide load balancing andreduce the port contentions of switchingdevices. From this point of view, in this paper, after analyzing the feasibility of implementi...
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Multipath basedrouting andswitching can achieve network-wide load balancing andreduce the port contentions of switchingdevices. From this point of view, in this paper, after analyzing the feasibility of implementing multinext-hop in core switching networks comprehensively, it comes up with a switching scheme called MXrS (Multi-next-hop rerouting Switch) which supports multi-next-hop dynamical rerouting. The MXrS scheme implements dynamical re-routing internal the switches according to congestion status to achieve real-time load balancing, and it can provide various traffic with different routing paths based on their QoS requirements. Theoretical analysis and simulation results show that switches equipped with MXrS can provide both gooddelay and throughput performance, and can reduce port contentions significantly.
Providing flexible personalized services on demand by heterogeneous network architectures or shared experiment environments is the next step for current information infrastructures. A major challenge is the efficient ...
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The objective of software process measurement is to find the abnormal conditions, such as incompliance and instable, in the real executing process of software process by measurement, so we can supply quantity proof fo...
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The objective of software process measurement is to find the abnormal conditions, such as incompliance and instable, in the real executing process of software process by measurement, so we can supply quantity proof for software process control and management. However, there are gaps between customer satisfaction degree measurement and software product quality degree measurement in mostly software process measurement approach and practice currently, cause the problems like ambiguity of measurement aims, anddifficult to evaluate the effect of measurement etc. This paper put forward a new software process measurement approach based on Six Sigma theory, which combines customer satisfaction degree, software quality, software process altogether. The approach is based on ISO9126's software internal-external-user quality model, uses QFd(quality function deployment) to confirm the aim of software process measurement and measurement technique factors, using SPC(statistics process control) method to do trend analysis and stability analysis for measurement items, to find andremove abnormal instances, constructs performance baseline for measured process performance, improves and justifies software process according to measurement results, and provides focus for software test and maintain, finally insure the implementation of the target of customer satisfaction degree and software quality.
As Internet traffic grows explosively, high-speed switches androuters with large capability are becoming necessary, scalable multi-stage switching fabric is the next step. Nevertheless, current scheduling schemes...
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As Internet traffic grows explosively, high-speed switches androuters with large capability are becoming necessary, scalable multi-stage switching fabric is the next step. Nevertheless, current scheduling schemes based on random matching orroundrobin dispatching for Memory-Space-Memory (MSM) Clos switching fabric, are subjected to the limited throughput and time delay under non-uniform traffic. As the complexity primitive, this paper introduces the Frame-based Stability-guaranteed Scheduling scheme (FSS) by relaxing the time constraint of scheduling. The stability of FFS as the primary academic analysis is proved too. At last, our simulation results show that FSS can achieve higher throughput under non-uniform traffic compared to current schemes, while keeping high performance under uniform traffic with low implementation complexity.
In order to strengthen the administration of the barn, we need to storage environment for scientific and effective monitoring and analysisThis paper firstly filter and merge the temperature and humidity information in...
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In order to strengthen the administration of the barn, we need to storage environment for scientific and effective monitoring and analysisThis paper firstly filter and merge the temperature and humidity information in the environment by using fuzzy neural network, then regard the temperature and humidity as particles, calculate the fitness of the particles according to corresponding mildew rate and cost, finally the outputs of temperature and humidity curve values are obtained through iterative optimization of local and global extreme by particle swarm algorithm.
In heterogeneous wireless network, its open and interconnected characteristic challenges current secure mechanisms, To enhance the security andreduce the redundant identifiers of users, An access authentication schem...
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With the development of Internet, P2P applications sometimes represent most of Internet traffic. This phenomenon effects on network performance worse. However, more and more P2P protocols can dynamically hop to differ...
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