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7^th international Special Session on Current Trends in Numerical Simulation for Parallel engineering Environments: New Directions and Work-in-Progress (ParSim 2008)

7<i><SUP>th</SUP></i> International Special Session on Curre...

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15th European Parallel-Virtual-Machine-and-Message-Passing-Interface-Users-Group Meeting (PVM/MPI)

作者： Trinitis, Carsten Schulz, Martin Tech Univ Munich Inst Informat LRR D-8000 Munich Germany Ctr Appl Sci Comp Lawrence Livermore Natl Lab Livemore CA USA

ISBN: (纸本)9783540874744

In today's world, the use of parallel programming and architectures is essential for simulating practical problems in engineering and related disciplines. Remarkable progress in CPU architecture (multi- and manycore, SMT, transactional memory, virtualization support, etc.), system scalability, and interconnect technology continues to provide new opportunities, as well as new challenges for both system architects and software developers. these trends are paralleled by progress in parallel algorithms, simulation techniques, and software integration from multiple disciplines. In its 7^th year ParSim continues to build a bridge between computer science and the application disciplines and to help with fostering cooperations between the different fields. In contrast to traditional conferences, emphasis is put on the presentation of up-to-date results with a shorter turn-around time. this offers the unique opportunity to present new aspects in this dynamic field and discuss them with a wide, interdisciplinary audience. the EuroPVM/MPI conference series, as one of the prime events in parallel computation, serves as an ideal surrounding for ParSim. this combination enables the participants to present and discuss their work within the scope of both the session and the host conference. © 2008 Springer-Verlag Berlin Heidelberg.

关键词： Parallel programming

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Virtual education system for the C programming language

Virtual education system for the C programming language

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7th international conference on Web Based Learning (ICWL 2008)

作者： Moon, Ilhyun Han, Saeron Choi, Kwansun Kim, Dongsik Jeon, Changwan Lee, Sunheum Jeon, Heunggu Electrical Communication Engineering SoonChunHyang University Information Communication Engineering SoonChunHyang University MiraeEnergy Tech. Co.

ISBN: (纸本)9783540850328

Web-based interactive learning is an important educational trend. In this paper, we implemented web-based virtual education courseware for the C programming language. It consists of two major components: a creative lecture component for students and an evaluation component for lecturers. the lecture component contains HTML-based lecture notes with creative multimedia content, such as flash movies and video clips, and an effective web-based compiler which compiles C programs at the server. these are submitted by students through the Web and the program returns their execution results to the students' PCs. there is also a submission component of a student's reports and an online examination. the administration and management system for attendance checking, report assignment, online examination and scoring, etc is implemented using web technologies such as HTML, Java, Java script, PHP and MySQL database. this system enables students to easily understand the content and programming techniques of the C programming language. It enables lecturers to achieve higher productivity, saving them time and labor.

关键词： web-based virtual education Java Applet web-based compiler PHP MySQL

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Building a distributed AOP middleware for large scale systems

Building a distributed AOP middleware for large scale system...

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Next Generation Aspect Oriented Middleware Workshop, NAOMI 2008 - 7th international conference on Aspect-Oriented Software Development, AOSD 200

作者： Mondéjar, Rubén García, Pedro Pairot, Carles Skarmeta, Antonio F. Gómez Universitat Rovira i Virgili Department of Computer Science and Mathematics Tarragona Spain Universidad de Murcia Department of Computer Engineering Murcia Spain

ISBN: (纸本)9781605581484

Building large scale applications is nowadays a complex challenge. Such complexity is determined by several factors like distributed application development, deployment or management, to name a few. Adaptive middleware plays an important role in achieving such task, and abstracts developers from the underlying layer issues like persistence, fault tolerance, and load balancing, among others. Distributed Aspect Oriented programming (AOP) is a promising paradigm that offers new ideas in the middleware arena. Several models like remote pointcut or component-aspects for designing wide-area distributed systems exist in such setting, but none of them completely fulfill the scalability requirement. In this paper we present a distributed aspect middleware for large-scale systems mainly offering three contributions. Firstly we introduce a complete aspect remoting service with one-to-one and one-to-many abstractions. Secondly, we outline the construction of a distributed aspect meta-model that provides a novel distributed meta-pointcut mechanism to intercept remote services. Finally, the distributed aspect composition model that allows connection mechanisms in design, activation, and runtime phases. the last part of the paper includes a proof-of-concept, consisting of an adaptive Distributed Hash Table (DHT), which is a clear example of how a wide variety of distributed aspects on large-scale scenarios can be implemented by using our model. © 2008 ACM.

关键词： Aspect oriented programming

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Traffic engineering and routing in IP networks with centralized control

Traffic engineering and routing in IP networks with centrali...

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7th international IFIP-TC6 Networking conference

作者： Fu, Jing Sjodin, Peter Karlsson, Gunnar Royal Inst Technol KTH Sch Elect Engn ACCESS Linnaeus Ctr SE-10044 Stockholm Sweden Royal Inst Technol KTH Sch Informat & Commun Technol SE-10044 Stockholm Sweden

ISBN: (纸本)9783540795483

there have been research initiatives in centralized control recently, which advocate that the control of an autonomous system (AS) should be performed in a centralized fashion. In this paper, we propose an approach to perform traffic engineering and routing in networks with centralized control, named LP-redirect. LP-redirect is based on an efficient formulation of linear programming (LP) that reduces the number of variables and constraints. As LP is not fast enough for runtime routing, LP-redirect uses a fast scheme to recompute routing paths when a network topology changes. the performance evaluation of LP-redirect shows that it is more efficient in both traffic engineering and computation than an approach using optimized link weights. In addition, LP-redirect is suitable for runtime traffic engineering and routing.

关键词： traffic engineering routing centralized control

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Optimisation-based approach for a better centrifugal spreading

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international JOURNAL OF SYSTEMS science 2008年第9期39卷 913-924页

作者： Virin, T. Koko, J. Piron, E. Martinet, P. Berducat, M. Cemagref French Agr & Environm Engn Res Ctr Montoldre France Univ Blaise Pascal Clermont II LIMOS Aubiere France Univ Blaise Pascal Clermont II LASMEA Aubiere France Cemagref French Agr & Environm Engn Res Ctr Aubiere France

the use of centrifugal spreaders for application of granular fertilizers raises concern about application accuracy. these spreaders are capable of distributing fairly uniform deposits with regularly-spaced parallel tramlines but lead over and under fertilizer application when distances separating the successive tractor trajectories are not constant or if paths are not parallel between them. the aim of this study is to propose an optimisation-based method to compute optimal variables for uniform fertilizer application. Mechanical constraints are also introduced so that the calculated parameters can be afterwards used as reference variables for the control of the spreader. the resulting improvements are illustrated by numerical examples for a field with geometrical irregularities.

关键词： parameter optimisation reference variables mathematical programming agriculture environmental engineering

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Optimisation-based approach for a better centrifugal spreading

Optimisation-based approach for a better centrifugal spreadi...

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7th Portuguese conference on Automatic Control

关键词： parameter optimisation reference variables mathematical programming agriculture environmental engineering

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An Island Based Hybrid Evolutionary Algorithm for Optimization

An Island Based Hybrid Evolutionary Algorithm for Optimizati...

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7th international conference on Simulated Evolution and Learning

作者： Li, Changhe Yang, Shengxiang Univ Leicester Dept Comp Sci Leicester LE1 7RH Leics England

ISBN: (纸本)9783540896937

Evolutionary computation has become an important problem Solving methodology among the Set of search and Optimization techniques. Recently, more and more different evolutionary techniques have been developed, especially hybrid evolutionary algorithms. this paper proposes an island based hybrid evolutionary algorithm (IHEA) for optimization, which is based on Particle swarm optimization (PSO), Past Evolutionary programming (FEP) and Estimation of Distribution Algorithm (EDA). Within IHEA, an island model is designed to cooperatively search for the global optima in search space. By combining the strengths of the three component algorithms, IHEA greatly improves the optimization performance of the three basic algorithms. Experimental results demonstrate that IHEA outperforms all the three component algorithms on the test problems.

关键词： Problem solving

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Parallel multiprocessor approaches to the RNA folding problem

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7th international conference on Parallel Processing and Applied Mathematics, PPAM 2007

作者： Ogoubi, Étienne Pouliot, David Turcotte, Marcel Hafid, Abdelhakim Département d'Informatique et de Recherche Opérationnelle Université de Montréal Pavillon André-Aisenstadt C.P. 6128 succursale Centre-ville Montréal QC H3C 3J7 Canada School of Information Technology and Engineering University of Ottawa 800 King Edward Avenue Ottawa ON K1N 6N5 Canada

ISBN: (纸本)3540681051

To quickly and efficiently fold long ribonucleic acid (RNA) sequences, fast computational models are needed. this paper compares two parallel multiprocessor computer architectures for the prediction of RNA secondary structure. We show promising experimental results using the OpenMP programming environment. this work is intended to be a testbed for the development of new approaches for the prediction of consensus RNA secondary structure from multiple sequences. © 2008 Springer-Verlag Berlin Heidelberg.

关键词： RNA

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Garbage collection in object oriented condensed graphs

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7th international conference on Parallel Processing and Applied Mathematics

作者： John, Sunil Morrison, John P. Natl Univ Ireland Univ Coll Cork Dept Comp Sci Ctr Unified Comp Cork Ireland

ISBN: (纸本)9783540681052

Even though Object Orientation has been proven to be an effective programming paradigm for software development, it has not been shown to be an ideal solution for the development of large scale parallel and distributed systems. there are a number of reasons for this: the parallelism and synchronisation in these systems has to be explicitly managed by the programmer;few Object Oriented languages have implicit support for Garbage Collection in parallel applications;and the state of a systems of concurrent objects is difficult to determine. In contrast, the Condensed Graph model provides a way of explicitly expressing parallelism but with implicit synchronisation;its implementation in the Web-Com system provides for automatic garbage collection and the dynamic state of the application is embodied in the topology of the Condensed Graph. these characteristics free programmers from the difficult and error prone process of explicitly managing parallelism and thus allows them to concentrate on expressing a solution to the problem rather than on its low level implementation. Object Oriented Condensed Graphs are a computational paradigm which combines Condensed Graphs with object orientation and this unified model leverages the advantages of both paradigms. this paper illustrates the Garbage Collection mechanism of Object Oriented Condensed Graphs as well as its basic concepts.

关键词： condensed graphs object oriented systems software engineering distributed and parallel computing

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Military task programming based on finite state machine (FSM) decision-making model

Military task programming based on finite state machine (FSM...

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international conference on System Simulation and Scientific Computing, ICSC

作者： Shidong Ma Guanghong Gong Liang Han Xiao Song The Aviation Key Laboratory for Advanced Simulation Technology Beijing Aeronautics and Astronautics University Beijing China The School of Automation Science and Electrical Engineering Beijing Aeronautics and Astronautics University Beijing China

Military task programming is an important foundation in military warfare simulations. Presently, scenarios in joint military warfare are built not so good to meet the requirement of aggregate-level warfare simulations and the requirement of intelligent decision in real time simulations. A method based on FSM model of aggregate-level military warfare decision-making and vehicle-level action decision-making is proposed in this paper. the programming process of joint military warfare with decision-making functions can be realized through the programming of these two levels, and the dynamic decision-making and execution of mission can be completed successfully.

关键词： Automata Decision making Military computing Dynamic programming Computational modeling Machine intelligence Functional programming Vehicle dynamics Computer simulation Space missions

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