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Mapping parallel programs into hierarchical distributed computer systems
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ABSTRACT In most cases modern distributed computer systems (computer clusters and MPP systems) have hierarchical organization and non-uniform communication channels between elementary machines (computer nodes, processors or processor cores). Execution time of 

A communication support for real-time distributed computer controlled systems
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ABSTRACT In this paper, we analyse the ability of P-NET fieldbus to cope with the timing requirements of a Distributed Computer Control System (DCCS), where messages associated to discrete events should be made available within a maximum bound time. 

Seeking optimal policies for adaptive distributed computer systems with multiple controls
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ABSTRACT Modern distributed applications, such as distributed multi-media and mobile applications, face unpredictable operating conditions and load variations. Performance cannot be designed into such applications in advance; they have to be able to tune 

Problem formulations, models and algorithms for mapping distributed multimedia applications to distributed computer systems
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ABSTRACT In the report, the problem of optimal allocation of Distributed Multimedia Applications (DMA) into Distributed Computer Systems (DCS) is examined. We are given precedence graphs representing topologies of the DMA and data streams between 

Distributed Computer Systems
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A SINGLE LARGE-SCALE COMPUTER or a net work of smaller, less costly computers? In this era of multiplying minicomputer applications and increasing minicomputer efficiency, the answers to this question are changing. There are, of course, com puter applications for 

File placement on distributed computer systems
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Advances in large-scale integrated logic and communication technology coupled with the applications explosion have led to distributed architectures. A distributed compuler system is basically an interconnection of processing elements, each having certain capabilities, 

Nexus: An interoperability layer for parallel and distributed computer systems
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ABSTRACT Nexus is a set of services that can be used to implement various task-parallel languages, data-parallel languages, and message-passing libraries. Nexus is designed to permit the e cient, portable implementation of individual parallel programming systems 

Anomalous relations among various performance objectives in distributed computer systems
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ABSTRACT Distributed computer systems consist of a set of heterogeneous host computers (ie, nodes) connected by a communication network. A job that arrives at a node may either be processed locally or transferred to another node for remote processing, which we call load 

Load-balanced task allocation in locally distributed computer systems
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ABSTRACT A task force is a distributed program which consists of a set of communicating tasks. This paper presents an algorithm for allocating the tasks in a task force to a set of execution sites in a locally distributed computer system. The main objective of this 

A guide to dynamic load balancing in distributed computer systems
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Summary Load balancing is the process of redistributing the work load among nodes of the distributed system to improve both resource utilization and job response time while also avoiding a situation where some nodes are heavily loaded while others are idle or doing 

Solving PDE problems on parallel and distributed computer systems using the NAG parallel library
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The NAG Parallel Library enables users to take advantage of the increased computing power and memory capacity offered by multiple processors. It provides parallel subroutines in some of the areas covered by traditional numerical libraries, such as dense and sparse 

Automated Fault-Inject Based Dependability Analysis of Distributed Computer Systems
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ABSTRACT Recently, there has been interest in developing a dependability benchmarks for computer systems. This will require a way to inject several different types of faults into many different platforms and a way to collect and compare the results. Analyzing complex 

Using expert systems to manage distributed computer systems
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ABSTRACT Expert systems can be used effectively to manage distributed computer systems which are based on decentralized control of shared resources. These distributed systems can exhibit high reliability and performance. Yet, designing such systems pose formidable 

Report of the NSF workshop on research challenges in distributed computer systems
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Executive Summary This report1 summarizes recommendations from a workshop on research challenges in distributed computer systems, sponsored by the National Science Foundation. A program committee solicited input from the research community by asking 

Performance of distributed multiaccess computer-communication systems
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We consider an environment of geographically distributed message sources which communicate with each other over a" common" broadcast channel o£ fixed total capacity. This geographic dispersion along with the random generation times for messages creates 

Checking verifications of protocols and distributed systems by computer
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We provide a treatise about checking proofs of distributed systems by computer using general purpose proof checkers. In particular, we present two approaches to verifying and checking the verification of the Sequential Line Interface Protocol (SLIP), one using 

Learning computer systems in a distributed course: Problematizing content and context
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ABSTRACT In this paper, a research study of learning computer systems in a complex, internationally distributed course environment is described. The relation between a learner and the object of his/her studies being in focus in phenomenographic research is 

Distributed modular computer-integrated surgical robotic systems: architecture for intelligent object distribution
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This paper presents intelligent object distribution architecture to maximize the performance and intelligence of a distributed surgical robotics system and its preliminary implementation in an MR-guided surgical robot system in an open-configuration MRI scanner. The method 

Performance Characteristics for Hierarchically Organized Multiprocessor Computer Systemswith Generally Distributed Processing Times
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ABSTRACT Performance modeling and evaluation for hierarchi-, cally organized multiprocessor computer systems has to take into consideration the particulars of the hardware structure, the operating mode, and the structure of the application programs, as 

Distributed computer control systems in future nuclear power plants
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ABSTRACT DISTRIBUTED COMPUTER CONTROL SYSTEMS IN FUTURE NUCLEAR POWER PLANTS. Good operating experience with computer control in CANDU reactors over the last decade justifies broadening the role of digital electronic and computer related 

Leap-second considerations in distributed computer systems
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A Coordinated Universal Time name (specified in terms of seconds (tm_sec), minutes (tm_min), hours (tm_hour), days since January 1 of the year (tm_yday), and calendar year minus 1900 (tm_year)) is related to a time represented as seconds since the Epoch, 

Computer Simulation of Interacting Dynamic Mechanical Systems Using Distributed Memory Parallel Processors
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ABSTRACT A high performance parallel processing architecture has been designed for the simulation of dynamic mechanical systems. This architecture is designed to exploit parallelism in the simulation of rigid body motion in order to achieve real-time 

Impact of distributed computer systems on auditing
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One of the major impacts the advent of computers had on business was the centralization of data and processing activities. Data that were previously stored in a filing cabinet in an office are now stored in a computer in another room, building, or city. Similarly, processing is 

Application Of Intrusion Detection Systems In Distributed Computer Systems And Dynamic Networks
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ABSTRACT The main objective of development is implementation of intrusion detection system, that should be able to detect attempts invasion of security integrity of computer system in real time and to respond on these attacks on the basis of defined security policy. The research 

What do our students strive for? Insights from a distributed, project-based course incomputer systems
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ABSTRACT An important question for us as educators is what our students strive for in the courses we teach. If we understand what the students strive for, we can use these insights as an intellectual tool aiming to influence what they what they learn. Despite its potential for 

Mapping parallel programs onto distributed computer systems with faulty elements
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Mapping one-measured (line,ring) and two-measured (mesh,torus) parallel program structures onto a distributed computer system (DCS) regular structures (torus,two- measured circulant,hypercube) with faulty elements (processor nodes and links) is 

Audio and Video in Distributed Computer Systems: Why and How?
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ABSTRACT Technological advances allow computer systems to handle" continuous media" such as audio and video in addition to" discrete media" such as text and graphics. As with the introduction of computer graphics ten years ago, the integration of continuous media 

Computer based learning with distributed multimedia systems'
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ABSTRACT This contribution will discuss possible influences of advances in information technology on computer based learning and instruction. A joint project of Universities and Digital Equipment, called Nestor, will be described which takes advantage of such 

An application of parallel, distributed and network computer systems to solve computational processes in an area of large graphical data volumes processing,
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ABSTRACT The paper deals with the visualization in cluster environment. The parallel ray- tracing is the method how to compute 3D scene in photo-realistic quality in a cluster computer environment. The first part contains description of the photo-realistic 

Dynamic rate adaptation in distributed computer control systems
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 1 Dynamic Rate Adaptation in Distributed Computer Control Systems Ana Antunes  22 Dynamic Rate Adaptation in Distributed

Using low-cost workstations to investigate computer networks and distributed systems
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A quality education in contemporary computer science requires that students gain experience with realistic systems. Many efforts at bringing empirical computer science to undergraduates focus on rather old technologies, for example, building a compiler or 

Reliable communication in distributed computer-controlled systems
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Controller Area Network (CAN) is a fieldbus network suitable for small-scale Distributed Computer Controlled Systems, being appropriate for transferring short real-time messages. However, CAN networks are also known to present some reliability problems, which can 

The development of Two Dimensional Brain Tumors' Algorithm On Distributed ParallelComputer Systems
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ABSTRACT This thesis focuses on the implementation of parallel algorithm using the distributed parallel computer system in solving two-dimensional brain tumors growth problem. The study of partial differential equations (PDEs) is a fundamental area of 

„Tasks Solution for Large Graphical Data Processing in the Environment of Parallel,Distributed and Network Computer Systems 
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ABSTRACT The computational power of latest generations of graphical hardware has been increased. This hardware represents a massive parallel computational architecture and with its latest improvements in graphic processor unit programmability the graphical hardware 

Distributed display environments in computer-assisted surgery systems
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ABSTRACT This paper describes a specific Distributed Display Environment (DDE) developed for a Computer-Assisted Surgery (CAS) system. A mini LCD screen is used to display surgical guidance information. The resulting DDE is described according to a 

Using adaptive probing for real-time problem diagnosis in distributed computer systems
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ABSTRACT In this work, we focus on cost-efficient techniques for realtime diagnosis in distributed systems that allow an adaptive, on-line selection and execution of appropriate measurements (tests). Particularly, one of our applications concerns fault diagnosis in 

Performance Modeling of Open and Distributed Computer Systems
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The advent ofpowerful personal computers, workstations and high speed data networks has dramatically changed the architecture ofcomputer systems from a single mainframe computer system 10" a system of open and distributed computer systems," The current 

ASoCS: An Architecture Concept for Self-optimizing Parallel and Distributed Computer Systems
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ABSTRACT Application optimization usually means optimization for a given, static computer architecture. In such systems, the programmer optimizes towards given objective functions with respect to the existing system. This scenario changes dramatically when dealing with 

Distributed computer-controlled systems: The DEAR-COTS approach
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ABSTRACT This paper proposes a new architecture targeting real-time and reliable Distributed Computer-Controlled Systems (DCCS). This architecture provides a structured approach for the integration of soft and/or hard real-time applications with Commercial Off-The-Shelf ( 

Parallel ocean general circulation model for distributed memory computer systems
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One of the most actual problems of a modern science is the problem of global changes of environment, including global changes of a climate. The important part of this problem is investigation of World Ocean, its meso-and large-scale hydro physical variability. The 

Modeling and Optimization of the Throughput of the Processing Nodes in Computer-aided controlsystems of Distributed Production of Printer Matter
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A computer-aided control system of distributed production of printed matter which is interpreted as an open queuing network was considered. Optimal resource allocation to the processing network nodes is one of the key problems in this class of systems. An 

A Practical Example of Distributed Computer Systems
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C Molnar ,COMpZJ: k ,iiasa.ac.at Distributed computer systems are now in vogue. They include world-wide computer networks as well as the emulation of standard terminals or large computers running on small ones. Moreover, the last three years have produced a considerable amount of theory 

Resource Management in Mobile Communication Systems and Distributed Computer Systems
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G Alyfantis ,cgi.di.uoa.gr ABSTRACT In computer and communication systems, competition and mutual interactions among users sharing system resources is frequently observed. Typical examples include the sharing of bandwidth in a wireless network or storage capacity in caching systems. In this 

Information Security Policy in the Distributed Computer Systems
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ABSTRACT In the paper are presented the general principles of the information security policy in the computer systems. The main components of the security policy, implemented in accordance with the requirements of the modern standards, are described in detail.

A Note on" Optimal Static Load Balancing in Distributed Computer Systems
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SA Mondal ,arXiv preprint cs/0006004 ABSTRACT The problem of minimizing mean response time of generic jobs submitted to a heterogenous distributed computer systems is considered in this paper. A static load balancing strategy, in which decision of redistribution of loads does not depend on the 

Performing real-time image processing on distributed computer systems
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ABSTRACT The aim of the paper is to validate a software architecture that allows an image processing researcher to develop parallel applications. The challenge was to develop algorithms that perform real-time low level operations on digital images able to be 

An introduction to distributed computer systems
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E Beens ,alexandria.tue.nl ABSTRACT This thesis presents an introduction to the area of distributed computer systems. Nowadays many computers are connected by networks. An user operating such a computer is often very aware of the fact that it is connected to a network. Users have to know for 

Medical office automation using multifunction distributed intelligence computer systems
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Distributed intelligence computers are presently available at microcomputer prices, with a performance level, flexi- bility, and sophistication which far out- strips that of personal and shared-log- ic  computer systems being touted today for automating medical office 

Data Security Management in Distributed Computer Systems
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ABSTRACT This research deals with data security management in distributed and client/server computer systems, placing special emphasis on access security. The paper presents the subject of data security management in these systems by describing them, examining their 

Analytic Study of a Mixed Equilibrium in Symmetric Distributed Computer Systems
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ABSTRACT The study of equilibria in networks has gained much interest in recent years with the emergence of new application areas. Along with the ongoing research on road traffic equilibria, there has been new interest in understanding competitive situations in 

Information Dynamic Model of Behavior Entities in Distributed Computer Systems, Remote Data Access
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I. INTRODUCTION Theory of modeling information processes are widely applied to all disciplines, including effectively used in the theory and practice of law. Thus, based on interaction modeling entities and their organization formed the legal base of knowledge, expertise 

Vulnerabilities in distributed computer systems
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ABSTRACT The society relies more and more on computers and distributed applications. This dissertation considers security in such systems, focusing on how to break the security. Online banking, wireless systems with thin clients, and e-government are covered by the 

Distributed Intrusion Detection for Computer Systems Using Communicating Agents CAPT Dennis J. Ingram (1), H Steven Kremer (2), and Neil C. Rowe (3)
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CDJ Ingram ABSTRACT Intrusion detection for computer systems is a key problem of the Internet, and the Windows NT operating system has a number of vulnerabilities. The work presented here demonstrates that independent detection agents under Windows NT can be run in a 

Software Performance Modeling in Distributed Computer Systems
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ABSTRACT The rapidly evolving technology built into the computer systems are essential in current day's business environment. The result is an increasing need for tools and techniques that assist in understanding the behavior of these systems. Such an 

Centralized Vs. Distributed Computer Systems for a Multi-Instrument Sounding Rocket Payload
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The sun has been a great source of curiosity for humankind for a long time. It is believed that astronomy can be divided into three periods, the first of which (Ancient Astronomy) 

Browser Based Distributed Computing TJHSST Senior Research Project Computer Systems Lab 2009-2010
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ABSTRACT Distributed computing exists to spread computationally intensive problems over a wide array of machines in order to obtain results more quickly than possible on one machine. This approach requires a large number of less powerful machines in place of 

TECHNICAL AND ECONOMIC INDICES OF FUNCTIONING DISTRIBUTED COMPUTER SYSTEMS AND REALIZABILITY FUNCTION OF SOLVING COMPLEX
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VG Khoroshevsky, KV Pavsky, DS Nikitin ,sun.tsu.ru Estimation of the function of realizability of solving the labor-consuming problems on distributed computer systems (CS) is made. A set of integral equations for calculating the function of realizability of problem solution on distributed CSs is derived. A parallel 

Computer-Mediated Group Processes in Distributed Command and Control Systems
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ABSTRACT Carefully designed procedures for command and control (C2) staff operations are critical to realize effective direction and management of tactical forces. The survivability of command posts and the functions they serve are critical as well. With the increased use of 

Assignment of Tasks on Parallel and Distributed Computer Systems Affectation de T aches sur les Systaemes Informatiques Parallaeles et Distribu es
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This work addresses the problem of static task assignment in heterogeneous distributed computing systems. This thesis first provides a brief overview on the proposed approaches and classifies them according to the solution techniques: graph theoretical, state space 

Distributed  Object Systems Lab Department of Computer Science and Engineering Indian Institute of Technology, Madras Chennai, India
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ABSTRACT Estimating quality of software systems has always been a good practice in software engineering. Presently, quality evaluation techniques are applied only as an afterthought to software design process. However, quality of a software system should be stated based 

Data mining in distributed computer systems
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ABSTRACT The thesis presents a survey of techniques for accurate prediction of traffic distribution in computer network systems. The main concern of the work is focused around the operation of web systems in the Internet; the ideas and solutions presented here are 

Interacting with pervasive computer systems–How to support physical, mobile, collaborative and distributed work
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2. AWARE project ,Mobile and Distributed collaboration .. 9 Introduction.   3. The interactive operating theatre ,Operating Theatre 

Parallel and Distributed Systems Laboratory MTA SZTAKI, Computer and Automation Research Institute H1518 Budapest, PO Box 63, Hungary smith sztaki.
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ABSTRACT The SoftWare Radio (SWR) concept is one of the emerging new technologies to solve nowadays bottlenecks in the converging telecommunication and information systems. In this paper we give a survey about resource control and reconfiguration support in a 

Definition of global properties of distributed computer system by the analysis of systemscomponents method
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A distributed computer system (abbr. DCS) consists of a number of distinct and logically connected communicating asynchronous sequential processes. A task realization in a DCS is the result of these process activities. During the task realization a user of a system 

Computer Networks and Distributed Systems
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OT Teck The usage of computer network is growing in a high speed. We can foresee that the scale and complexity of future network will keep increase and the network will finally cover all human and most of the human made electronic devices.

Third International Congress on Computer Systems and Electronics Distributed system of security and vehicular access (Trisquel)
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JC Galicia, AGJ Gracia, YEP Gómez ,cisce.escom.ipn.mx ABSTRACT This paper describes the design and implementation of distributed system called Trisquel which uses Radio Frequency Identification (RFID). This system is oriented to provide a solution to accelerate vehicular access process to National Polytechnic Institute 

Basic Concept and Verification of Distributed Real-time Computer Network Architecture for Power systems Tatsuji Tanaka, Takehiko Tsuchiya, Shigeki
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Y Serizawa, F Fujikawa, T Otani ,transform.ru In accordance with changes in the power business structure caused by deregulation and newly introduced distributed generation, there has been an increasing need for new power system operation and control systems. In particular, the importance of intelligent control 

Optimization of Mapping Graphs of Parallel Programs onto Graphs of Distributed Computer Systems by Recurrent Neural Network
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MS Tarkov ,cdn.intechopen.com A distributed computer system (CS) is a set of elementary computers (ECs) connected by a network that is program-controlled from these computers. Each EC includes a computing module (CM)(processor with a memory) and a system unit (message router). The 

Multi-criterion tabu programming for pareto-optimal task assignment in distributed computer systems
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ABSTRACT Multi-criterion tabu programming is a new approach for a decision making support and it can be applied to determine the Pareto solutions. Similarly to rules applied in the genetic programming, tabu programming solves problems by using a general solver that 

Integrated Safety Mechanisms Based on Security Risks Minimization for the Distributed Computer Systems
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ABSTRACT Today, there are known the basic principles of decision-making on the safety control of distributed computer systems in the face of uncertainty and risk. However, in this area there are no practical methods for the quantitative risk analysis and assessment, 

DISTRIBUTED ALGORITHMS FOR PROVIDING FAIRNESS IN HETEROGENEOUSCOMPUTER SYSTEMS
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ABSTRACT Distributed computing systems often consist of heterogeneous computing resources managed by different administrators. Due to the distributed nature, effective management of the resources may become difficult and the performance of the system 

Distributed Modular Computer-Integrated Surgical Robotic Systems
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ABSTRACT We seek to build CIS research systems within a flexible, open architecture. In this paper, we outline our solutions to the problems of system design, construction, and integration in this environment: building distributed, modular systems for sensing, control, 

Distributed Systems   Computer Networks From Messages to Bits and Back
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A Abbas, O Bashir With distributed computing, different hardware and software components of an application can be located on different computers connected via networks. Distributed computing allows application developers to spread an application over an entire computer network. It, 

DESIGN AND IMPLEMENTATION OF A PARALLEL PROCESSING SYSTEM FOR DISTRIBUTEDTRAINING OF COMPUTER AIDED DIAGNOSIS SYSTEMS
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Scope: Training of classifiers for pattern recognition and classification is extremely time consuming. Although modern computers are very powerful, their computational power is not enough to provide fast training. The purpose of this work was to design and implement a 

Profiling Distributed File Systems with Computer Animation
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ALELJ Telleen, C Lee ,classes.soe.ucsc.edu ABSTRACT Achieving performance, reliability, and scalability has proven difficult for distributed file systems. Placement of data, load distribution and other overheads are often the culprits. Profiling is a useful technique for understanding file system behavior, improving 

Object Model Adrian Fitzpatrick, Gregory Biegel, Siobhian Clarke, Vinny Cahill Distributed Systems Group Department of Computer Science University of
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A Fitzpatrick ,swiki-lifia.info.unlp.edu.ar 1ABSTRACT A sentient object is a mobile, intelligent software component which is able to sense its environment via sensors and react to sensed information via actuators. Sentient objects are context-aware, aware of both their internal state and the state of their 

Computer Networks and Distributed Systems as a Basis for Cloud Environments and Cooperative Applications
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A Schill ,rn.inf.tu-dresden.de ?A Distributed System comprises several single components on different computers, which normally do not operate using shared memory and as a consequence communicate via the exchange of messages. The various components involved cooperate to achieve a 

Survey of Distributed Generation Systems Islanding Detection Methods Irvin J. Balaguer-lvarez1, Heung-Geun Kim2, Fang Z. Peng1, and Eduardo I. Ortiz-
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IJ Balaguer-lvarez, HG Kim, FZ Peng ,aicip.eecs.utk.edu ABSTRACT Distributed generators (DG), such as photovoltaic cells, are low cost, highly reliable and have electronic interfaces and reduced emissions. Even with the mentioned benefits, there are technical limits on the degree to which DG can be connected. One of these 

Shoshin Distributed Systems Group Department of Computer Science University of Waterloo, Waterloo Ontario N2L 3G1, Canada http://www. shoshin.
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ABSTRACT Distributed-system management concerns the observation of a distributed computation and then using the information gained by that observation to control the computation. This necessitates collecting the information required to determine the partial 

Parallel, Distributed and Network Computer Systems Applications to Solve Computational Processes in the Area of Large Graphical Data Volumes Processing
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B Sobota, M Straka - Computer Science and Technology Research ,hornad.fei.tuke.sk ABSTRACT Project is aimed to basic research in the area of large graphical data volumes processing by parallel, distributed and network computer architectures. Partial goals of projects are aimed to specification and modeling tools for large graphical data volumes 


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