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Proceedings Fifth International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunication Systems

12-15 Jan. 1997

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Displaying Results 1 - 25 of 38
  • Proceedings Fifth International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunication Systems

    Publication Year: 1997
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    Freely Available from IEEE
  • Queueing network models with two classes of customers

    Publication Year: 1997, Page(s):229 - 234
    Cited by:  Papers (2)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (575 KB)

    Some peculiar properties of multi-class product-form closed queueing networks with two classes of customers are presented. In particular, we show that in a network with two stations there exists a combination of customer classes such that the stations are equally utilized regardless of the population size. Such an equiutilization point is shown to be an optimal operational point at which the syste... View full abstract»

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  • Index of authors

    Publication Year: 1997, Page(s): 249
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    Freely Available from IEEE
  • A study of virtual memory MTU reassembly within the PowerPC architecture

    Publication Year: 1997, Page(s):81 - 90
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1364 KB)

    Message transfer unit (MTU) reassembly schemes in modern operating systems cause I/O performance degradation when MTU sizes are larger than the architecture's page size. This can happen with emerging network technologies, such as Asynchronous Transfer Mode (ATM), where MTUs can be 64 KB or greater Traditional solutions either reassemble using memory copy or preallocate contiguous memory; these, ho... View full abstract»

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  • Efficient analysis techniques for symmetric multiprocessor architectures

    Publication Year: 1997, Page(s):125 - 130
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (748 KB)

    Performance analysis of multiprocessor architectures in the early design phases is an important task in the development of complex parallel architectures. An approach for the hierarchical modeling and analysis of a wide class of multiprocessor architectures is introduced. The technique combines and extends several efficient approaches to analyze large CTMCs underlying hierarchical models of multip... View full abstract»

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  • A hybrid simulation approach enabling performance characterization of large software systems

    Publication Year: 1997, Page(s):73 - 80
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (816 KB)

    We describe a method for performance analysis of large software systems that combines a fast instruction-set simulator with off-line detailed analysis of segments of the execution. The combination is faster than straight cycle-accurate simulation, simpler and more flexible than techniques relying on hardware monitoring, and accurate. Specifically, the instruction-set simulator running at a slowdow... View full abstract»

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  • A neural controller for transit node in high speed communication networks

    Publication Year: 1997, Page(s):70 - 71
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (216 KB)

    In order to provide multi-megabit communication services to an increasing number of users one needs efficient means of traffic control and network resource management. The neural network-based controller used in transit node of high speed networks seems to be a useful tool for assurance reliable and cost effective communications. The major aim of this paper is to study the problem of traffic contr... View full abstract»

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  • Modeling the communication behavior of the Intel Paragon

    Publication Year: 1997, Page(s):117 - 124
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (792 KB)

    Modeling the performance behavior of parallel machines is important for compiler support of efficient parallel programming. For parallel machines with a distributed memory organization this includes the simulation of the communication behavior. In this article, we investigate the communication behavior of the Intel Paragon for point-to-point and collective communication operations like single-broa... View full abstract»

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  • A study of an SCI switch fabric

    Publication Year: 1997, Page(s):162 - 169
    Cited by:  Papers (2)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (728 KB)

    The scalable coherent interface (SCI) defines a high-speed interconnect system that provides a coherent memory system. It specifies a topology-independent communication protocol with the possibility of connecting up to 64 K nodes. SCI switches are the key components in building large SCI systems effectively. An SCI switch which uses several internal buses is studied as well as more complex systems... View full abstract»

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  • Modelling slotted multi-channel ring all-optical networks

    Publication Year: 1997, Page(s):146 - 153
    Cited by:  Papers (4)  |  Patents (24)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (700 KB)

    This paper presents an approximate analytical model for the evaluation of throughput and access delays in high-speed all-optical networks with slotted multi-channel ring topology, where each channel is shared in statistical time division by all nodes transmitting to one destination using a collision- and contention-free access protocol based on a channel inspection capability. Nodes are assumed to... View full abstract»

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  • Traffic modeling methodology for performance analysis of a class of wide-area network problems

    Publication Year: 1997, Page(s):241 - 248
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (732 KB)

    Positive auto-correlations in input traffic dramatically increase the queue length statistics at a multiplexer. Further, traffic over several data networks has been found to possess a slowly decaying auto-correlation structure. These characteristics are difficult to capture using simple traditional models, and yet accurate studies of network environments need to be based on realistic traffic. This... View full abstract»

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  • Load and performance modeling of communication subsystems with the DO-IT toolbox

    Publication Year: 1997, Page(s):65 - 69
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    The specification and description language (SDL) and message sequence charts (MSCs) are established techniques to support the software development process in the telecommunication industry. Several commercial tools exist supporting functional aspects of the engineering process. However, rather little research has been done concerning the integration of nonfunctional aspects in the development proc... View full abstract»

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  • Fluid traffic modelling in simulation of a call admission control scheme for ATM networks

    Publication Year: 1997, Page(s):110 - 115
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (628 KB)

    Simulating traffic for an ATM network may be very time consuming due to the large amount of transmitted cells, if traditional simulation modelling at the cell level is employed. A possible means to speed up the simulations is to model the traffic at a higher abstraction level. We evaluate different simulation modelling techniques on a scheme for call admission control in ATM networks. By generatin... View full abstract»

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  • The effect of scheduling discipline on dynamic load sharing in heterogeneous distributed systems

    Publication Year: 1997, Page(s):17 - 24
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (844 KB)

    Dynamic load sharing policies have been extensively studied. Most of the previous studies have assumed a homogeneous distributed system with a first-come/first-served (FCFS) node scheduling policy. In addition, job service times and inter-arrival times are assumed to be exponentially distributed. In this paper, we study the impact of these assumptions on the performance of sender-initiated and rec... View full abstract»

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  • Modeling integrated services traffic for bandwidth management in next-generation intranets

    Publication Year: 1997, Page(s):154 - 161
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (720 KB)

    This paper discusses modeling requirements of network traffic over next-generation internets and intranets. This traffic will include not only traditional data, but continuous media and multimedia services like telephony, digital television, and interactive TV. We propose a model for interactive TV and discuss its relationship to traditional data and media traffic models. We also present simulatio... View full abstract»

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  • On the quantitative specification of jitter constrained periodic streams

    Publication Year: 1997, Page(s):171 - 176
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (456 KB)

    An increasing number of application systems can be characterized by their requirement to process sequences of events in real-time. These sequences are principally of constant rate, but may vary within given limits. Hence, several parameter sets that seem to differ only slightly have been proposed to describe such sequences. This includes the parameter sets used in the Tenet Protocol Suite, in the ... View full abstract»

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  • A dynamic load balancing algorithm for conservative parallel simulations

    Publication Year: 1997, Page(s):32 - 37
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (664 KB)

    Load balancing is an important component in improving the efficiency of distributed systems because it distributes an even workload over all the processors. This paper considers the problem of load-balancing a conservative parallel simulation for execution on a multicomputer. The synchronization protocol makes use of Chandy-Misra (1979) null-messages. An earlier study conducted by Boukerche and Tr... View full abstract»

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  • Performance evaluation using measure dependent transitions in Petri nets

    Publication Year: 1997, Page(s):235 - 240
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (492 KB)

    Decomposition is an often proposed method to determine Petri nets with a large state space. But there are no generalized rules on how to decompose a Petri net. We present a general method to adapt the transition parameters of timed Petri nets that show a cyclic behavior. The cyclic time intervals can be of constant length or differ. We realize this by adapting the firing rates of exponentially tim... View full abstract»

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  • Model-based alarm correlation in cellular phone networks

    Publication Year: 1997, Page(s):197 - 204
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (708 KB)

    Though cellular phone networks already contain intelligent network elements diagnosing local faults, alarm bursts caused by network element failures cannot be handled properly by this technology. It is the responsibility of the operators to extract the relevant alarms from such a burst and identify the cause. To assist the operators, several alarm correlation tools have been developed. The paper i... View full abstract»

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  • Measuring RPC traffic in an OS/2 DCE environment

    Publication Year: 1997, Page(s):51 - 54
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB)

    Distributed computing involves systems that operate across networks transparently, using the resources of multiple machines. The Open Software Foundation's Distributed Computing Environment (DCE) has evolved to address the need for a vendor-neutral platform to which distributed applications can be developed, and upon which they can run. Central to the design philosophy of DCE is its reliance on th... View full abstract»

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  • A method for the computation of reliability bounds for non-repairable fault-tolerant systems

    Publication Year: 1997, Page(s):221 - 228
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (576 KB)

    A realistic modeling of fault-tolerant systems requires to take into account phenomena such as the dependence of component failure rates and coverage parameters on the operational configuration of the system, which cannot be properly captured using combinatoric techniques. Such dependencies can be modeled with detail using continuous-time Markov chains (CTMCs). However, the use of CTMC models is l... View full abstract»

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  • The cache injection/cofetch architecture: initial performance evaluation

    Publication Year: 1997, Page(s):63 - 64
    Cited by:  Papers (5)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (196 KB)

    One of the major problems in a number of SM (shared memory) and DSM (distributed shared memory) applications is the overall cost of read misses in conditions when: (a) system latencies are relatively large, and (b) a shared data item is read relatively few times by each of the processors in the system; modern SM and DSM systems are typically based on off-the-shelf microprocessors which do not incl... View full abstract»

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  • Channel based scheduling of parallelizable tasks

    Publication Year: 1997, Page(s):11 - 16
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (512 KB)

    Considers the problem of scheduling a set of tasks on a parallel machine of identical processors. The tasks are parallelizable and can be run simultaneously on several processors, in which case the runtime is decreased, Our goal is to minimize the finishing time (or makespan) of the entire schedule. This problem is known to be NP-hard. We propose a new approach to scheduling, based on partitioning... View full abstract»

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  • Analytic models of workload behavior and pipeline performance

    Publication Year: 1997, Page(s):91 - 96
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (672 KB)

    The evaluation of pipeline performance and the analysis of different design alternatives and cost/performance tradeoffs are a fundamental aspect of high-performance computer system design. This performance evaluation process requires accurate models of both the pipeline organization and the characteristics of the workload being executed. We derive general mathematical models and analyses of worklo... View full abstract»

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  • Smart: an advanced shared-memory simulator-towards a system-level simulation environment

    Publication Year: 1997, Page(s):131 - 138
    Cited by:  Papers (2)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1424 KB)

    System-level events, such as process switching and task migration, have a major effect on the performance of computer systems. “Smart” is a new simulation environment that extends existing simulators, such as MINT, with the capability to emulate the effect of such mechanisms. “Smart” provides a user friendly interface (GUI) that allows control of different system parameters... View full abstract»

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