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In order to make full use of resources in distributed parallel computing system, and reduce general time cost for performing the algorithm, task scheduling and resource management model and low-layer resource supervision-control model are designed and implemented. The unpredictable system behavior is resolved, which is caused by dynamic change resources. The dynamic join-in of resources is allowed...
A dynamic policy based network management scheme is presented for the problem that traditional policies can??t preferably adapt to change of network state. It defined dynamic policy form and appended new module PMA to IETF policy frame to improves the adaptability of policie. Then the application of dynamic policy to allocate resource is presented. By experiment and analysis, it is shown that this...
As the band of networks increases, the process speed of network-based intrusion detection system (NIDS) hardly keeps up with the speed of networks. By arranging several sensors to deal with the traffic in parallel, the intrusion detection system's speed can be significantly increased. How to split the traffic to the sensors is the key problem of a parallel intrusion detection system. To resolve the...
Coexistence of multicasting and DiffServ is promising since the DiffServ module can provide a scalable QoS framework and multicasting can save network resources. Although several approaches of multicasting in DiffServ networks have been proposed in recent years, most of them concern only one or two problems that existed in this research area. In this paper, we propose an integrated approach for DiffServ...
In this paper, we consider the problem of resource allocation (in terms of subcarrier, bit and corresponding power) for downlink transmission in multiuser OFDM system. An improved subcarrier and power allocation algorithm is proposed, which uses two steps to allocate recourses dynamically. Given the system??s total power and BER, this algorithm tends to maximize the bit rate to make effective use...
The key issue for parallel cluster computing is the stability of load balancing method, the unstable behavior such as oscillatory action which caused by delay can intensely influence the performance of load balancing algorithm. In such a case, a linear dynamic load balancing model is proposed in this paper. By analyzing the stability of this linear model, we can not only obtain the relation between...
Chord is the most essential and efficient peer-to-peer routing algorithm that, however, cannot reflect the hot resources problem in practical networks. To solve the problem, an optimized Chord algorithm has been put forward in this paper to accelerate locating the hot resources. The optimized Chord algorithm records the access time of resources and categories the resources into three classes. As for...
A genetic algorithm (GA) was proposed to solve the resource constrained project scheduling problem (RCPSP), in which resources are renewable and there is a single mode to perform each activity. This work employed genetic algorithms to schedule project activities to minimize make-span subject to precedence constraints and resources availability. In the genetic algorithm, a new permutation of priority-based...
Simulation is an important method in the research and development of storage and network system. A good simulator can save memory and times. There are many simulators developed, but most of those simulator aimed at performance and data schedule algorithm. None of those simulators can model manipuility and dependability in large scale storage network. In this paper, we present the facilities and design...
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