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international symposium on parallel and distributed Processing (IPDPS)

作者： Michael Boyer David Tarjan Scott T. Acton Kevin Skadron Departments of Computer Science University of Virginia Charlottesville VA USA Departments of Electrical and Computer Engineering University of Virginia Charlottesville VA USA Departments of Computer Science University of Virginia Charlottesville VA

ISBN: (纸本)9781424437511

The availability of easily programmable manycore CPUs and GPUs has motivated investigations into how to best exploit their tremendous computational power for scientific computing. Here we demonstrate how a systems biology application - detection and tracking of white blood cells in video microscopy - can be accelerated by 200times using a CUDA-capable GPU. Because the algorithms and implementation challenges are common to a wide range of applications, we discuss general techniques that allow programmers to make efficient use of a manycore GPU.

关键词： Acceleration White blood cells Coprocessors Application software Concurrent computing Programming profession Computer architecture Iterative algorithms Biology computing systems biology

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Distribution of Human-Machine Interfaces in System-of-systems engineering

Distribution of Human-Machine Interfaces in System-of-System...

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symposium on Human Interface held at the HCI international 2009

作者： Leuchter, Sandro Muehlenberg, Dirk Fraunhofer Inst Informat & Data Proc IITB D-76131 Karlsruhe Germany

ISBN: (纸本)9783642025556

System-of-systems integration requires sharing of data, algorithms, user authorization/authentication, and user interfaces between independent systems. While SOA promises to solve the first issues the latter is still open. Within an experimental prototype for a distributed information system we have tested different methods to share not only the algorithmics and data of services but also their user interface. The experimental prototype consists of nodes providing services within process portals and nodes realizing services with software agents. Some of the services were extended with WSRP (web service remote portlet) to provide their own user interface components that can be transmitted between separated containers and application servers. Interoperability tests were conducted on JBoss and BEA Portal Workshop. Open questions remain on how the layout of one component should influence the internal layout of other GUI-components displayed concurrently. Former work on user interface management systems could improve todays tools in that respect.

关键词： HMI portlet wsrp web clipping interoperability

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Experienced Report on Assessing and Evaluating Change Impact Analysis Through a Framework and Associated Models

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JOURNAL OF INFORMATION SCIENCE AND engineering 2009年第2期25卷 363-373页

作者： Ekabua, Obeten O. Adigun, Matthew O. Univ Zululand Dept Comp Sci Ctr Excellence Mobile eServ Dev ZA-3886 Kwa Dlangezwa South Africa

In our evolving computing environment with heterogenously distributed information systems, products are continuously modified and changed. During this process a change to one part will, in most cases, results in changes to other parts. Therefore, in design and redesign for customization, predicting this change presents a significant challenge. Changes are required to fix faults or to improve or update products. This paper reports on the development of a change impact analysis factor adaptation model, a fault and failure assumption model and the implementation of a generic change propagation framework for evaluating and assessing utility service provisioning in a Grid service environment. While implementing the framework, data was collected for a period of 3 years which helped in predicting an immediate year. The obtained results from our pre- diction shows the framework, its associated models and Bayesian statistics as satisfying the criteria for a significant prediction accuracy in evaluating and assessing the effect of a change of service in a grid environment when compared to an unreported regression method.

关键词： change impact analysis service provisioning software metrics service maintenance Bayesian statistics grid environment

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Change Sequence Mining in Context-Aware Scientific Workflow

Change Sequence Mining in Context-Aware Scientific Workflow

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international symposium on parallel and distributed Processing with Applications, ISPA

作者： Yi Wang Jian Cao Minglu Li Department of Computer Science and Engineering Shanghai Jiaotong University Shanghai China

Grid computing technology makes it possibly to use scientific workflow to be shared and reused among different users. However, a scientific workflow model usually needs to be tailored during reuse because of different problem contexts met by different users. These change logs provide additional information to help users customize scientific workflow. In this paper, we present a change sequence mining approach to automatically induce customized workflow based on different scientific experiment contexts. A docking case for drug design is described to validate the approach.

关键词： Context modeling distributed processing Application software Computer science Drugs Collaborative work Workflow management software Prototypes Filters Knowledge engineering

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Notice of Violation of IEEE Publication Principles: Efficient implementation of QRD-RLS algorithm using hardware-software co-design

Notice of Violation of IEEE Publication Principles: Efficien...

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international symposium on parallel and distributed Processing (IPDPS)

作者： Nupur Lodha Nivesh Rai Aarthy Krishnamurthy Hrishikesh Venkataraman Dhirubhai Ambani Institute of Information and Communication Technology Gandhinagar India Performance Engineering Laboratory School of Electronic Engineering University of Dublin Ireland

Notice of Violation of IEEE Publication Principles "Efficient Implementation of QRD-RLS Algorithm using Hardware-software Co-design" by Napur Lodha, Nivesh Rai, Aarthy Krishnamurthy, Hrishikesh Venkataraman in the 2009 IEEE international symposium on parallel & distributed Processing (IPDPS 2009), 2009, pp. 1 - 4. After careful and considered review of the content and authorship of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE's Publication Principles. This paper contains significant portions of original text from the paper cited below. The original text was reused with insufficient attribution (including appropriate references to the original author(s) and/or paper title) and without permission from all coauthors. Due to the nature of this violation, reasonable effort should be made to remove all past references to this paper, and future references should be made to the following article: "Hardware-software Co-design of QRD-RLS Algorithm with Microblaze Soft Core Processor" by Napur Lodha, Nivesh Rai, Rahul Dubey, Hrishikesh Venkataraman in the Third international Conference on Information systems, Technology and Management (ICISTM-09), 2009, pp. 197 - 207. This paper presents the implementation of QR Decomposition based Recursive Least Square (QRD-RLS) algorithm on Field Programmable Gate Arrays (FPGA) using hardware-software co-design. The system has been implemented on Xilinx Spartan 3E FPGA with Microblaze soft core processor. The hardware part consists of a custom peripheral that solves the part of the algorithm with higher computational costs and the software part consists of an embedded soft core processor that manages the control functions and rest of the algorithm. The speed and flexibility of FPGAs render them viable for such computationally intensive application. This paper also presents the implementation results and their analysis.

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Feature-Modeling and Aspect-Oriented Programming: Integration and Automation

Feature-Modeling and Aspect-Oriented Programming: Integratio...

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ACIS international Conference on software engineering, Artificial Intelligence, Networking, and parallel/distributed Computing (SNPD)

作者： Kwanwoo Lee Goetz Botterweck Steffen Thiel Department of Information Systems Engineering Hansung University Seoul South Korea Lero – the Irish Software Engineering Research Centre University of Limerick Limerick Ireland Department of Computer Science Furtwangen University of Applied Sciences Furtwangen Germany

Feature modeling is an essential activity for modeling and managing the variability of a software product line. On the other hand, aspect-oriented programming provides effective means for modularizing feature implementation. Although current AOP tools (e.g., AJDT) provide a mechanism for switching aspect modules on and off to configure a product, this becomes infeasible in the context of large-scale product lines with thousands of variations. In this paper, we describe how feature modeling can be integrated with aspect-oriented programming to perform automated product derivation efficiently and effectively in the context of large-scale product lines.

关键词： Automatic programming Automation software engineering Switches Artificial intelligence Intelligent networks distributed computing parallel programming Management information systems systems engineering and theory

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parallel accelerated cartesian expansions for particle dynamics simulations

Parallel accelerated cartesian expansions for particle dynam...

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international symposium on parallel and distributed Processing (IPDPS)

作者： M. Vikram A. Baczewzki B. Shanker S. Aluru Department of Electrical and Computer Engineering Michigan State University East Lansing MI USA Department of Electrical and Computer Engineering Iowa State University Ames IA USA

ISBN: (纸本)9781424437511

Rapid evaluation of potentials in large physical systems plays a crucial role in several fields and has been an intensely studied topic on parallel computers. Computational methods and associated parallel algorithms tend to vary depending on the potential being computed. Real applications often involve multiple potentials, leading to increased complexity and the need to strike a balance between competing data distribution strategies, ultimately resulting in low parallel efficiencies. In this paper, we present a parallel accelerated Cartesian expansion (PACE) method that enables rapid evaluation of multiple forms of potentials using a common Fast Multipole Method (FMM) type framework. In addition, our framework localizes potential dependent computations to one particular operator, allowing reuse of much of the computation across different potentials. We present an implicitly load balanced and communication efficient parallel algorithm and show that it can integrate multiple potentials, multiple time steps and address dynamically evolving physical systems. We demonstrate the applicability of the method by solving particle dynamics simulations using both long-range and Lennard-Jones potentials with parallel efficiencies of 97% on 512 to 1024 processors.

关键词： Acceleration Concurrent computing Computational modeling parallel algorithms Data structures Distribution strategy Physics computing Application software Computer simulation Differential equations

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software-like debugging methodology for reconfigurable platforms

Software-like debugging methodology for reconfigurable platf...

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international symposium on parallel and distributed Processing (IPDPS)

作者： Loic Lagadec Damien Picard Architectures et Systèmes Laboratory-STICC Université de Bretagne Occidentale France

This paper presents a new debugging methodology for applications targeting reconfigurable platforms. The key issue behind is that bringing software engineering techniques advantages to hardware design would reduce design cycles hence time-to-market. Our high-level synthesis framework supports probes insertion both in the behavioural description of the application and in its hierarchical netlist. Probe status can control the execution, and traced signals can be read back from software. Probes' conditions can be reassigned at runtime tackling the main disadvantage of modifications through re-synthesis and favours short debugging cycles similarly to software development.

关键词： Debugging Hardware Probes Object oriented modeling Controllability Observability Productivity Application software Circuit simulation software design

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An Approach to the Development of Inference Engine for distributed System for Fault Diagnosis

An Approach to the Development of Inference Engine for Distr...

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ACIS international Conference on software engineering, Artificial Intelligence, Networking, and parallel/distributed Computing (SNPD)

作者： Vinod Bihari Prasad Bradley University Peoria IL USA

The reliable and fault tolerant computers are key to the success to aerospace, and communication industries. Designing a reliable digital system, and detecting and repairing the faults are challenging tasks in order for the digital system to operate without failures for a given period of time. The paper presents a new and systematic software engineering approach of performing fault diagnosis parallel and distributed computing. The purpose of the paper would be to demonstrate a method to build a fault diagnosis for a parallel and distributed computing. The paper chooses a model posed a tremendous challenge to the user for fault analysis. The model is the classic PMC model that happens to be a parallel and distributed computing. The paper would also show a method for building an optimal inference engine by obtaining sub graphs that also preserve the necessary and sufficient conditions of the model. Coin words: parallel and distributed Computing, Artificial Intelligence.

关键词： Engines Fault diagnosis distributed computing Digital systems Fault tolerance Aerospace engineering Aerospace industry Communication industry Fault detection software engineering

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Offer-based scheduling of deadline-constrained Bag-of-Tasks applications for utility computing systems

Offer-based scheduling of deadline-constrained Bag-of-Tasks ...

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international symposium on parallel and distributed Processing (IPDPS)

作者： Marco A. S. Netto Rajkumar Buyya Grid Computing and Distributed Systems Laboratory Department of Computer Science and Software Engineering University of Melbourne Australia

Metaschedulers can distribute parts of a bag-of-tasks (BoT) application among various resource providers in order to speed up its execution. When providers cannot disclose private information such as their load and computing power, which are usually heterogeneous, the metascheduler needs to make blind scheduling decisions. We propose three policies for composing resource offers to schedule deadline-constrained BoT applications. Offers act as a mechanism in which resource providers expose their interest in executing an entire BoT or only part of it without revealing their load and total computing power. We also evaluate the amount of information resource providers need to expose to the metascheduler and its impact on the scheduling. Our main findings are: (i) offer-based scheduling produces less delay for jobs that cannot meet deadlines in comparison to scheduling based on load availability (i.e. free time slots); thus it is possible to keep providers' load private when scheduling multi-site BoTs; and (ii) if providers publish their total computing power they can have more local jobs meeting deadlines.

关键词： Processor scheduling Computer applications Job shop scheduling Grid computing Cloud computing Application software Information resources Delay Biological system modeling Message passing

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