共查询到19条相似文献,搜索用时 62 毫秒
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可扩展并行计算的应用与研究 总被引:1,自引:0,他引:1
黄淑玲 《数字社区&智能家居》2005,(4):69-72
文章首先介绍了并行计算机模型、可扩展性和使能技术,最后主要介绍了工作站机群系统(COW)。 相似文献
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基于分布存储的工作站机群系统由于具有很高的性能价格比,越来越受到高性能计算领域的重视。用户在使用机群系统时,迫切地需要一种性能监视、评估和预测的工具。THPT系统就是为满足这一需要而设计开发的。 THPT系统由两个部分组成:网络并行计算环境的实时管理和性能监测子系统MMS以及并行计算性能分析和预测子系统PAPS。本文主要对PAPS子系统进行论述。 相似文献
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Paraskevas Evripidou George Samaras 《International journal of parallel programming》2006,34(5):429-458
In this paper we present Parallel Computing with Mobile Agents (PaCMAn), a mobile agent based Metacomputer that enables its
users to utilize idle resources on the internet to tackle computational problems that could not be handled efficiently with
their own resources. The PaCMAn launches multiple mobile agents that cooperate and communicate to solve problems in parallel.
Each agent supports the basic communication and synchronization tasks of the classical parallel worker assuming the role of
a process in a parallel processing application. Application tasks, however, are assigned dynamically to the PaCMAn’s mobile
agents via TaskHandlers. TaskHandlers are Java objects capable of implementing particular tasks of the application. The PaCMAn
consists of three major components: Broker, Server and Client. A server machine has to be explicitly registered in order to
take part in the PaCMAn Metacomputer. A number of brokers keep track of the available resources. In the PaCMAn system both
server and client machines can be located anywhere in the Internet. The clients select the servers that they will utilize
based on the specific resource requirements. We have developed and tested prototype systems with several applications. These
prototypes provide proof of concept of our proposed Metacomputing philosophy. Furthermore they have demonstrated that PaCMAn
provides parallel efficiency. We also demonstrate that the PaCMAn Metacomputer can be used as the computational engine for
the creation of sophisticated Pervasive Services anywhere anytime. 相似文献
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现有的Intranet计算不能支持移动计算。利用移动代理技术建立了移动Intranet计算模型.探讨了在Intranet上实现移动代理计算模式的若干问题。 相似文献
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移动集群计算关键技术研究 总被引:5,自引:0,他引:5
随着集群和移动计算技术的快速发展及广泛应用,一种结合了这两种技术的新的计算方式——移动集群计算应运而生。分析讨论了移动集群计算的体系结构和实现移动集群计算的一些关键问题及解决方案。 相似文献
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在移动计算环境中基于移动代理的缓存失效方案 总被引:2,自引:2,他引:2
1 引言缓存技术是分布式计算环境中的重要技术,它可以改善系统的整体性能(如查询响应时间、吞吐量等),而移动计算的网络环境是一种特殊的分布式环境,与传统的分布式系统相比,它具有鲜明的特点:移动性、断接性、带宽多样性、可伸缩性、弱可靠性、网络通信的非对称性、电源能力局限性等等。这些特点使得缓存技术在移动计算环境中尤为重要。因为缓存能有效减少带宽需求,并能节省移动计算机的能耗。 相似文献
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Mobile agent systems are difficult to reason about and implement efficiently and safely. Theoretical work, most notably process calculi, provide solid semantics for mobile systems. However, the theory is often too abstract to match with the requirements of practical implementations. To fill this gap, intermediate models must be proposed. We present in this paper such a model named Interaction Spaces, a metaphor of geometrical spaces in which agents interact through simple transformations. The framework captures high-level distributed semantics, most notably asynchronous, multicast communications on FIFO channels. It also refines and implements the channel passing feature of the pi-calculus, together with the mobility of agent themselves. Above interaction spaces, we propose a full-fledged agent calculus and its associated operational semantics. 相似文献