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15th Innovation and Technology in Computer Science Education Conference

作者： Dukielska, Magdalena Sroka, Jacek Google Inc. Australia University of Warsaw Poland

ISBN: (纸本)9781605588209

In this paper we introduce the javaspaces NetBeans IDE (JSN) which integrates the Java Spaces technology, an implementation of Linda principles in Java, with the NetBeans(1) IDE. JSN is a didactic tool for practical assignments during distributed programming courses. It hides advanced aspects of Java Spaces configuration and lets students focus on inter-process coordination. An important component of JSN is a distributed debugger which can help to make concurrent programming classes easier to understand and more compelling.

关键词： javaspaces Linda NetBeans distributed debugger distributed programming integrated development environment

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Sorting that Uses javaspaces Technology

Sorting that Uses JavaSpaces Technology

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World Congress on Nature and Biologically Inspired Computing

作者： Muresan, Codruta Univ Babes Bolyai Dept Comp Sci R-3400 Cluj Napoca Romania

ISBN: (纸本)9781424450534

javaspaces technology provides a programming model that views an application as a collection of processes cooperating via the flow of objects into and out of one or more spaces. A space is a shared, network-accessible repository for objects. Processes perform simple operations to write objects into a space, take or read objects from a space. This technology is suited for parallel computation applications. I described two methods for a classic problem of parallel computing - sorting a list with a large number of elements which use Java Spaces.

关键词： component javaspaces sorting parallel processingt

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RMI, Jini, and javaspaces: An efficiency comparison

RMI, Jini, and JavaSpaces: An efficiency comparison

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International Conference on Parallel and Distributed Processing Techniques and Applications

作者： Eggen, R Ahuja, S Waters, C Univ N Florida Dept Comp & Informat Sci Jacksonville FL 32224 USA

ISBN: (纸本)1932415262

Parallel application programmers and software engineers have a variety of paradigms at their disposal. Some of the tools include traditional environments such as parallel virtual machine (PVM) and message passing interface (MPI). Tools that are more modern involve the World Wide Web, including Simple Object Access Protocol (SOAP), Common Object Request Broker Architecture (CORBA), and javaspaces. Java's object oriented approach proves to be a desirable platform for developing parallel distributed applications. This paper describes the benefits and expected efficiencies of using the object-oriented approach of Java's Jini and the RMI and Jini based object oriented tuple environment provided by javaspaces. [1].

关键词： javaspaces parallel distributed processing RMI Jini

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Coalescing idle workstations as a multiprocessor system using javaspaces and Java Web Start

Coalescing idle workstations as a multiprocessor system usin...

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8th IASTED International Conference on Internet and Multimedia Systems and Applications

作者： Atkinson, A Malhotra, V Univ Tasmania Sch Comp Hobart Tas 7001 Australia

ISBN: (纸本)0889864209

This paper describes a distributed system which aggregates the unused and usually wasted processing capacity of idle workstations. The aggregation is achieved through the use of now ubiquitous internet infrastructure and web technology. And, it delivers a powerful yet inexpensive execution environment for computationally intensive applications. The prototype system described here makes use of Sun Microsystems Jini technology, particularly javaspaces, along with Java Web Start, to produce a dynamic, flexible and reliable system. Two example applications used to evaluate the system are described: (a) the n-Queens. problem and (b) a parallel sorting (shearsort) application. The results of the evaluation clearly show that, for certain classes of applications, the system is capable of delivering significant performance.

关键词： parallel and distributed processing Java-based web applications Jini javaspaces

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MobileSpaces - javaspaces for mobile devices

MobileSpaces - JavaSpaces for mobile devices

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International Conference on Computer as a Tool (EUROCON 2005)

作者： Rybicki, T Domaszewicz, J Warsaw Univ Technol Fac Elect & Informat Technol Inst Telecommun PL-00665 Warsaw Poland

ISBN: (纸本)142440049X

Mobile distributed applications are becoming increasingly important. The tuple space is a convenient mechanism for exchanging data in a distributed application, and javaspaces, a part of the SUN Jini technology, is a leading implementation of the tuple space concept. Unfortunately, due to Java 2 Micro Edition (J2ME) limitations, it is not possible to access javaspaces from a mobile phone. This paper describes MobileSpaces - a system that brings javaspaces-like API to mobile phones. MobileSpaces follow the Jini Surrogate Architecture. A surrogate acts as an intermediary between a mobile phone-resident application and javaspaces.

关键词： Java 2 Micro Edition (J2ME) Mobile Information Device Profile (MIDP) distributed mobile application tuple space javaspaces Jini Jini Surrogate Architecture

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Dissemination of weather intelligence information and met sensor data acquisition using Jini/javaspaces technologies

Dissemination of weather intelligence information and met se...

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Conference on Battlespace Digitization and Network-Centric Systems III

作者： Torres, MA Vidal, E Army Res Lab BED White Sands Missile Range NM 88002 USA

ISBN: (纸本)081944961X

Digitization of the battlespace for current and future combat systems cannot be complete without effective weather intelligence products and decision aids. The Army faces an important challenge in the simultaneous collection and dissemination of vast amounts of raw and processed meteorological data. Data can originate from various types of sensors, sources, and computing models. Also, data collections can be sporadic and their publication can materialize in an assortment of formats and through dissimilar channels. To resolve many of these challenges, we have investigated a tuplespaces solution that provides loose-coupling of sensors, systems, and weather forecasting models in a networked environment. Of interest are the results of experiments that employ the Jini/javaspaces implementation to resolve the problems of data acquisition and dissemination. This paper will present our space-based design to loosely-couple several weather sensors and simultaneously acquire their data at high output rates. Our results show that tuplespaces implementations simplify acquisition and distribution of weather intelligence information. Other experimental results will demonstrate that tuplespaces architecture can also be employed by other network centric systems that involve information dissemination, decision aids, and collaboration/computing environments.

关键词： weather intelligence tuplespaces distributed computing Jini javaspaces data acquisition

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The parallel computing of a molecular docking algorithm using the javaspaces service

The parallel computing of a molecular docking algorithm usin...

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6th International Conference on Sciences of Electronics, Technologies of Information and Telecommunications (SETIT)

作者： Youcef, Mahdjoub Belhadri, Messabih Universit&#x00E9'||' '||' des Sciences et de la Technologie d''Oran USTO IVARM

ISBN: (纸本)9781467316583

The molecular docking is the focus of practical applications such as protein engineering and drug design. A docking algorithm is a procedure that predicts the assembly of two molecules like a key and a lock. To screen a large library of molecules, a docking algorithm requires high performance computing. Parallel and distributed applications have long been recognized as powerful computational tools and effective in the field of bioinformatics. Jini technology is one of the powerful infrastructures network for building and deploying distributed systems that are organized as a federation of services. javaspaces is one of the services that come bundled with Jini, it is a shared associative memory accessible by the network and allows an easily developing of a massively parallel and distributed applications. This paper discusses the use of the javaspaces service to build a distributed application in order to minimize the running time of a molecular docking algorithm.

关键词： Jini javaspaces molecular docking parallel and distributed applications

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XML based messaging service system by javaspaces

XML based messaging service system by JavaSpaces

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IEEE International Conference on Systems, Man and Cybernetics (SMC)

作者： Luo, Y Nagata, M Osaka Kyoiku Univ Osaka 5828582 Japan

ISBN: (纸本)0780370872

With this paper, We present XML based messaging model in javaspaces, called JSMS (javaspaces Messaging Service). We use XML to express message which exchanged between applications with tree structure. Using DOM-API or SAX-API, we can access message of XML-form, and come to be able to use the inside information of message. In a word, if message is defined with XML, messaging based on the content of message can be realized. Furthermore, in order to implement persistent storage of messages, we employ distributed object technology named javaspaces. It is easy for making to persistency and the transaction processing of the message to have implemented more by having taken javaspaces. Moreover, to use javaspaces, the protocol which had begun to be thought also processed message with XML-form more strongly. This protocol is a concept called message-tree. With this paper, introduce what how to defined message by XML, and message-tree, and JSMS system's composition.

关键词： message XML javaspaces messaging message-tree Java Jini

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Scheduling and prototyping of distributed real-time systems (an approach using JINI/javaspaces)

Scheduling and prototyping of distributed real-time systems ...

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作者： Tolga DEMIRTAS Naval Postgraduate School

学位级别：硕士

Scheduling is one of the basic issues in building real -time applications on a distributed computing system. A distributed computing system is typically modeled as a collection of processes interconnected by a communication network. For real -time applications, scheduling is needed to meet applications timing constraints. The major difference between single processor and distributed processors scheduling is that, in addition to deciding which order to execute tasks, distributed processors' scheduling algorithms must also decide which processors the task should run on. Moreover, these algorithms must also take into consideration practical network issues like transmission delay, loss of messages, and synchronization in the absence of a global clock. This thesis proposes a formal model to capture these network constraints and develops a proxy-based network buffer technique to support the inter-process communication for the user-defined distributed real -time systems prototypes generated by the Distributed Computer Aided Prototyping System (DCAPS). The proxy-based technique builds on the Jini/javaspaces infrastructure. We have conducted several experiments to measure the response time of inter-process communication via javaspaces. We have demonstrated the effectiveness of the proxy-based technique by creating an executabl e prototype of a user-defined distributed real -time system specification.

关键词： Computer Aided Prototyping Distributed Real-Time Systems Jini javaspaces Scheduling Prototyping

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基于javaspaces的分布式计算技术研究

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计算机应用 2005年第2期25卷 370-373页

作者：朱文华王茜东南大学计算机科学与工程系江苏南京210096

javaspaces是基于Java语言平台的面向对象的元组空间技术,它为分布式环境下构建可靠、灵活和可扩展的应用系统提供了一种简单而有用的方案。详细介绍了javaspaces的编程模型,分析了javaspaces的应用模式,并且提出了一个基于javaspaces... 详细信息

javaspaces是基于Java语言平台的面向对象的元组空间技术,它为分布式环境下构建可靠、灵活和可扩展的应用系统提供了一种简单而有用的方案。详细介绍了javaspaces的编程模型,分析了javaspaces的应用模式,并且提出了一个基于javaspaces的分布式并行计算框架。

关键词： javaspaces 元组空间分布式计算

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