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Task scheduling is a NP puzzle. Its algorithm is an important research direction. This paper proposes a task scheduling algorithm based on real-coded immune algorithm by studying and analyzing task scheduling models and immune algorithms existed. This paper discusses the coding method, the generation and update of population, the update of memory cells and the values of partial parameters. This paper explores the affinity function and the concentration function. In the end, this new algorithm is implemented in the software VC++, and is proven validity and feasibility by comparing and analyzing examples [ABSTRACT FROM AUTHOR]

Due to the variations of the network in actual distributed system, failure detectors without adaptive mechanism cannot meet the requirements of QOS of applications. Adaptive failure detectors should dynamically adjust the detecting quality according to the real-time state of the network. Assuming that delay of the message and loss of the messages is a random probability, the failure detection model based on the predicted message delay is proposed in this paper. A PAC-AFD adaptive failure detection algorithm is realized based on the above model based on the prediction from historical message delay and it contains checking idea. Experimental results show that the algorithm can relieve the effect of delay of the message and loss of the message on the failure detection while ensuring the accuracy and completeness of detection. [ABSTRACT FROM AUTHOR]

Parallel computer cluster technology is an important development direction of high-performance parallel computer system. Parallel computer system is the best choice in institution, which has the high frequent operation requirement. This paper gives the ideal scheme based on the analysis for the complex degree of common distributed algorithm, and points out the advantages of distributed algorithm applied on the high-performance parallel computer system. [ABSTRACT FROM AUTHOR]

In this paper, we discussed the basic principle and the common shortcoming in the existing network vulnerability scanning systems. Based on these, distributed system based components of network vulnerability scanning system and the communication and collaboration of Agents are been described in detail. The system uses plug-in technology to strengthen the expansibility. Its key factors are friendly interface, faster scanning, and particularly scanning results in detail. [ABSTRACT FROM AUTHOR]

HPC is most commonly associated with computing used for scientific research nowadays, which always uses supercomputers and computer clusters. Cloud computing - a relatively recent, builds on decades of research in virtualization, distributed computing, utility computing and more recently networking, web and software service. Cloud computing includes 3 services: SaaS, PaaS and IaaS. The popular general cloud service like EC2 allow users to provision compute clusters fairly and quickly by paying a monetary value only for the duration of the resources. Recently, HPC give rises of the cloud computing for cheaper economic solutions and more enterprises announced their HPC on-demand service. In this paper, some HPC applications (mostly recently) that have been deployed with clouds are also summarized. The possibility of using cloud computing for HPC is illustrated by experiments and more and more application types are well-suited to use cloud. [ABSTRACT FROM AUTHOR]

An important challenge regarding peer's trust valuation in peer-to-peer (P2P) networks is how to cope with such problems as dishonest feedbacks of malicious peers and collusions, which cannot be effectively tackled by the existing solutions. So a feedback confidence (FC)-based distributed trust management scheme for P2P networks, named FCTM for short, is proposed to quantify and evaluate the trustworthiness of peers. In FCTM, the factor of FC is introduced to be used as the confidence metric for depicting the extent to which the feedback peer trusts its feedbacks, which is related to three aspects, including the density of interaction experiences with the trustee, the altering scope of interaction experiences and the interacting time. Besides, we consider the feedback credibility (RC), which is constructed with the similarity function to describe the veracity of its feedbacks, and time fading characteristics of trust. Theoretical analyses and experimental results demonstrate that FCTM has advantages in combating some malicious activities over the existing models, and show more robustness and effectiveness. [ABSTRACT FROM AUTHOR]

In order to realize the human-computer interactive interface fault-tolerant, dynamic reconfiguration and uniform control of interface switching of each humancomputer interactive node in distributed system, a rapid developing model is proposed to build human-computer interactive system recurring to an assistant developing tool designed self-owned. Subsequently, a fault-tolerant scheduling model is presented as well as corresponding scheduling algorithms based on the rapid developing model. This model is made up of Center Scheduling Component and many human-computer interactive nodes. Each humancomputer interactive node includes a Local Scheduling Component, an Interface Generating Component and some human-computer interactive interface components. Finally, feasibility of the model and correctness of the algorithms are proved by the simulation experiment. [ABSTRACT FROM AUTHOR]

As the latest development of the distributed storage technology, Cloud storage is the product of the integration of distributed storage and virtualization technologies. Cloud storage is a method that allows you to use storage facilities available on the Internet. There are ten critical common denominators that must be considered to make cloud storage valuable. A typical cloud storage system architecture includes a master control server and several storage servers. With the advent of cloud computing, multitenancy has simply been extended to include any cloud architecture--that supports multiple tenants. [ABSTRACT FROM AUTHOR]

For power system, power flow analysis is very important to enhance the system security and efficiency. An algorithm based on distributed computing is proposed for power flow analysis. In this algorithm, the coefficient matrix transformed into a bordered block diagonal form (BBDF) matrix, and each block is sent to corresponding client to calculate. In IEEE standard power systems, this algorithm has been proved more effective than Newton-Raphson iteration and decoupled algorithm. [ABSTRACT FROM AUTHOR]

Grid computing is applying the resources of many computers in a network to single problem at same time, usually to a scientific or technical problem that requires a great number of computer processing cycles or access to large amounts of data. Many academic institutions devote themselves to define standard of Grid computing and hope to do some application engineering work. How to design the general architecture is the most important factor of Grid computing application. This article given a Grid computing model contains general architecture and interfaces. The model is a simple distributed computing application based on Open Grid Services Architecture, which given a detailed description on GridService architecture, interfaces, creation of transient services, factories, services lifetime management, notification by analyzing the architecture and interfaces function of Open Grid Services Architecture. [ABSTRACT FROM AUTHOR]