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Proceedings International Conference on Parallel Computing in Electrical Engineering. PARELEC 2000

27-30 Aug. 2000

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Displaying Results 1 - 25 of 52
  • International Conference on Parallel Computing in Electrical Engineering PARELEC 2000 [front matter]

    Publication Year: 2000, Page(s):iii - viii
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    Freely Available from IEEE
  • Author index

    Publication Year: 2000, Page(s):262 - 263
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    Freely Available from IEEE
  • Fault tolerance for an embedded wormhole switched network

    Publication Year: 2000, Page(s):79 - 83
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (444 KB)

    The effectiveness of parallel and distributed systems depends heavily upon the reliability and efficiency of the method used for information transfer. To satisfy these requirements, the communication medium must supply fault tolerance throughout the communication layers, but should minimise operational overheads. The work described relates to a scalable communication system for a distributed-memor... View full abstract»

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  • Sequential and distributed simulations using Java threads

    Publication Year: 2000, Page(s):237 - 241
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (300 KB)

    We demonstrate an implementation methodology of sequential and distributed simulations using Java programming: two specific algorithms based on Java threads (single-channel and multi-channel algorithms) are proposed. From this point of view, the events are timely ordered into events lists and controlled by threads with respect to clock cycles. Each thread possesses an event list. The threads are g... View full abstract»

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  • Concurrent implementation of linear and nonlinear programming

    Publication Year: 2000, Page(s):39 - 42
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (232 KB)

    This paper presents the results of an example of a single-criterion problem which can be a link to a bigger decision making chain. Load balancing is the key issue for high performance of a parallel implementation of the problem. Due to its importance, load balancing is a well-studied problem in parallel and distributed systems in general. We would like to present three strategies that significantl... View full abstract»

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  • “Connection by communication” paradigm for dynamically reconfigurable multi-processor systems

    Publication Year: 2000, Page(s):74 - 78
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    The paper presents a paradigm for inter-processor connection control in message passing parallel systems. The paradigm is bused on permanent inter-processor connections created under centralized control as a residual effect of data communications. It enables creation of temporal infrastructure of permanent interprocessor connections which is next used for dynamic mapping of execution of communicat... View full abstract»

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  • Decoupled parallel simulation of power electronics systems using Matlab-Simulink

    Publication Year: 2000, Page(s):232 - 236
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (384 KB)

    This work presents an efficient parallel simulation method, namely the Discrete Time Model Segmentation Approach (DTMSA) which could be applied to simulate a complex system using simple Simulink block diagram models. In this approach, a complex system, like motor drives, can be decoupled into many smaller subsystems. Each subsystem is then formulated with a smaller matrix and simulated with in the... View full abstract»

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  • A scalable parallel algorithm for the extraction of active contours

    Publication Year: 2000, Page(s):94 - 98
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    We have developed a new parallel and scalable algorithm for active contour extractions. Our algorithm contains only communications between neighboring processors to achieve high performance parallel execution. Since the convergence ability of the contour is almost the same as the original (sequential) algorithm, the proposed method is a practical and effective algorithm to apply to any images View full abstract»

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  • Parallelization of a 3D magnetostatic code using High Performance Fortran

    Publication Year: 2000, Page(s):181 - 185
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (396 KB)

    Numerical simulation in electrical engineering allows one to reduce development costs by predicting device performance. An accurate prediction often requires 3D models, inducing high storage capacity and CPU power needs. As computation times can be very important, parallel computers are well suited to these models. 3D simulation in electrical engineering is based on recent research work (Whitney's... View full abstract»

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  • Parallel computational algorithms for the simulation of closed-loop robotic systems

    Publication Year: 2000, Page(s):34 - 38
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (324 KB)

    A new approach for the modelling and parallel simulation of closed-loop robotic systems is proposed in this paper. This approach uses virtual springs and dampers to include the closed-loop constraints thereby avoiding the solution of differential-algebraic equations. Moreover, it can lead to a completely decoupled dynamic model of parallel robotic manipulators which is ideal for the parallel compu... View full abstract»

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  • Time/space sharing distributed job scheduling policy in a workstation cluster environment

    Publication Year: 2000, Page(s):116 - 120
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (380 KB)

    This paper presents an algorithm for scheduling communication-intensive parallel applications in workstation clusters environment. The proposed scheduling policy combines the best attributes of both space-sharing and time-sharing principles and coexists with local schedulers (e.g., the Windows NT scheduler), which both provides coordinated scheduling and can generalise to provide a wide range of r... View full abstract»

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  • Parallel Jacobi-Davidson method for multichannel blind equalization criterium

    Publication Year: 2000, Page(s):67 - 72
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    Some recent works have represented novel techniques that exploit cyclostationarity for channel identification in data communication systems using only second order statistics. In particular, work has shown the feasibility of blind identification based on the forward shift structure of the correlation matrices of the source. We propose an alternative high performance algorithm based on the above pr... View full abstract»

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  • A parallel processing technique for electrical tree growth in solid insulating materials using cellular automata

    Publication Year: 2000, Page(s):228 - 231
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (244 KB)

    One of the major problems in an electrical insulation structure is its failure while operating at normal voltage stress which is due to electrical treeing. It is well-known that this electrical tree grows progressively and is damaging locally. To analyze the electrical treeing in the laboratory, not being cost effective, computer simulations are used. We have employed a known cellular automata met... View full abstract»

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  • Numerical calculation of electromagnetic problems on an SCI based PC-cluster

    Publication Year: 2000, Page(s):166 - 170
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (364 KB)

    This paper summarizes results obtained using the parallel 3D electromagnetic field simulation program POLOPT on a cluster of PCs connected via an Scalable Coherent Interface (SCI) network interface. Compared to previous measurements carried out with conventional network technologies such as Ethernet or Fast Ethernet, a significant rise in parallel efficiency can be obtained. One of the most critic... View full abstract»

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  • High-level synthesis system (HLDESA) for processor arrays

    Publication Year: 2000, Page(s):89 - 93
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (428 KB)

    An approach to high-level synthesis of processor arrays is presented. In particular we describe methods and tools of the system HLDESA for processor array design which include resource constraints. Two major groups of resource constraints are considered: implementation constraints such as area and performance constraints to meet desired properties of the array as well as interface constraints such... View full abstract»

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  • Parallel program execution with process migration

    Publication Year: 2000, Page(s):50 - 54
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB)

    A new model of process migration is considered. There are three classes of events which could initialize the reassignment procedure: new processes spawnings or terminations, significant increases of nodes' loads by users and unexpected changes of application and system configurations. Based on these parameters suitable migration rules are defined to achieve good load balancing of a computing platf... View full abstract»

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  • A framework for component-based distributed applications design. The CODE: Component Oriented Distributed Environment

    Publication Year: 2000, Page(s):8 - 12
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (376 KB)

    This paper describes the design of CODE-Component Oriented Distributed Environment, which is a framework for building component-based distributed applications. This system uses the DCOM technology to provide a flexible infrastructure that supports communication among processes spread across a local area network (Intranet). A component-oriented architecture is also defined to make an easy and intui... View full abstract»

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  • Analysis of high frequency electromagnetic wave propagation using parallel MIMD computer and cluster system

    Publication Year: 2000, Page(s):176 - 180
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    We present a parallel implementation of an algorithm for the determination of the electromagnetic field in a closed three-dimensional space. A homogenous dielectric and a remote radiation source are taken into consideration for the region under scope. Computations were carried out on the two different systems: a parallel MIMD computer, ALEX AVX2; and a cluster system, a network of PCs with an MPI ... View full abstract»

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  • Towards more powerful and flexible synchronization primitives

    Publication Year: 2000, Page(s):18 - 22
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (364 KB)

    A new scheme for parallel process synchronization is presented. For expressing synchronization conditions and associated control flow in a process code an interrupt mechanism is used. As a result, a passive waiting can be easily avoided. Interrupts are triggered when a specified condition becomes true. The conditions can reflect the status of a whole parallel application. To define the application... View full abstract»

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  • Cellular automata approach to scheduling problem

    Publication Year: 2000, Page(s):29 - 33
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    In the paper we propose using cellular automata (CAs) to solve a problem of scheduling tasks of a parallel program in the two processor system. We examine a hypothesis that a nonlinear structure of a program graph can be approximated by a linear CA structure. Corresponding CAs solving the scheduling problem act according to some rules which must be found. Searching effective rules is conducted wit... View full abstract»

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  • Parallel implementation of the three-dimensional temperature distribution field in a floor with electrical heating system

    Publication Year: 2000, Page(s):208 - 212
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    The author presents a parallel implementation of the summation of slow-converge series that describe the three-dimensional heat distribution. The thermal field arising from the electrical heating system situated in a concrete floor is computed by complicated three-dimensional series. The heater is approximated with two-dimensional Dirac's distribution (X, Y axes) and a gate function, which describ... View full abstract»

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  • Distributed hierarchical workstation cluster co-ordination scheme

    Publication Year: 2000, Page(s):111 - 115
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    When a set of geographically distributed autonomous clusters of workstations are combined into a single large-scale virtual distributed system, a control mechanism for coordinating the activities of the combined system for effective utilisation of the resources is indispensable. This paper presents a co-ordination mechanism suitable for scheduling and distributing services across the host of such ... View full abstract»

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  • Parallelization of the boundary element method for the modelling of large electromagnetic scattering problems

    Publication Year: 2000, Page(s):197 - 202
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB)

    The boundary integral method is used to solve electromagnetic scattering by perfect electric conducting or dielectric bodies. Due to the memory requirements, the size of computed problems is limited on regular scalar computers. The use of a distributed memory parallel computer allows one to remove this limitation and to solve large problems (dense matrices with more than 100000 rows). The problem ... View full abstract»

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  • A VLSI systolic array architecture for computation of third-order cumulants for two-dimensional signals

    Publication Year: 2000, Page(s):134 - 138
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (308 KB)

    Cumulants or higher-order statistics have been established as powerful analytical tools in modern signal processing. To estimate cumulants directly from the incoming time-series data in real-time, it is necessary to design a parallel architecture that speeds up the estimation process. This paper describes an efficient VLSI systolic array architecture for computing third-order cumulants for two-dim... View full abstract»

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  • Introduction of the speaking rate in the model of speech recognition

    Publication Year: 2000, Page(s):64 - 66
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (136 KB)

    We propose an improvement to the centisecond TLHMM model applied to the sound duration. Indeed, the distribution of the sound duration depends on the speaking rate. An adaptation in a post-processing step is needed. This adaptation is studied by proposing a model of the speaking rate based on average syllabic duration. The experiments elaborated on a set of BDSONS show the interest of this approac... View full abstract»

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