Proceedings 33rd Annual Simulation Symposium (SS 2000)最新文献

Modeling and simulation of a network of workstations with wormhole switching 具有虫洞交换的工作站网络的建模与仿真

Proceedings 33rd Annual Simulation Symposium (SS 2000) Pub Date : 2000-04-16 DOI: 10.1109/SIMSYM.2000.844928

Xavier Molero, F. Silla, V. Santonja

{"title":"Modeling and simulation of a network of workstations with wormhole switching","authors":"Xavier Molero, F. Silla, V. Santonja","doi":"10.1109/SIMSYM.2000.844928","DOIUrl":"https://doi.org/10.1109/SIMSYM.2000.844928","url":null,"abstract":"Networks of workstations (NOW) are becoming a very popular alternative to parallel computers for those applications with high needs of resources such as memory capacity processing power and input/output storage space. Typically, these networks connect workstations using irregular topologies, providing wiring flexibility, scalability, and incremental expansion capability required in this environment. In order to analyze and design these kind of systems it is necessary to have adequate tools. To address this problem, we have implemented a very flexible and easy to use NOW simulator. It is based on the one presented in (Silla, 1998; Silla and Duato, 1997; 1998) and it includes three more functionalities: it supports a technique for message fragmentation in packets, generates self-similar traffic, and also it can model networks with permanent faulted links or switches. We present this NOW simulator, the basic queueing models it is based on, its main internal organization, input parameters, output performance variables, and finally, we show several simple examples of performance measures obtained for, among others, message fragmentation, failures in links and switches, and self-similar traffic.","PeriodicalId":361153,"journal":{"name":"Proceedings 33rd Annual Simulation Symposium (SS 2000)","volume":"423 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122916334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Using the DEVS paradigm to implement a simulated processor 使用DEVS范例实现一个模拟处理器

Proceedings 33rd Annual Simulation Symposium (SS 2000) Pub Date : 2000-04-16 DOI: 10.1109/SIMSYM.2000.844901

Sergio Daicz, Alejandro J. Troccoli, S. Zlotnik, Gabriel A. Wainer

引用次数: 1

Event-driven simulation of timed Petri net models 时间Petri网模型的事件驱动仿真

Proceedings 33rd Annual Simulation Symposium (SS 2000) Pub Date : 2000-04-16 DOI: 10.1109/SIMSYM.2000.844905

W. M. Zuberek

引用次数: 3

Simulation optimization of airline delay using simultaneous perturbation stochastic approximation 基于同步摄动随机逼近的航班延误仿真优化

Proceedings 33rd Annual Simulation Symposium (SS 2000) Pub Date : 2000-04-16 DOI: 10.1109/SIMSYM.2000.844923

D. Hutchison, S. Hill

引用次数: 2

Exploring CORSIM runtime characteristics: profiling a traffic simulator 探索CORSIM运行时特性:分析流量模拟器

Proceedings 33rd Annual Simulation Symposium (SS 2000) Pub Date : 2000-04-16 DOI: 10.1109/SIMSYM.2000.844910

M. Bumble, L. D. Coraor, L. Elefteriadou

引用次数: 7

Modeling and analysis of software aging and rejuvenation 软件老化与返老还童的建模与分析

Proceedings 33rd Annual Simulation Symposium (SS 2000) Pub Date : 2000-04-16 DOI: 10.1109/SIMSYM.2000.844925

K. Trivedi, K. Vaidyanathan, K. Goseva-Popstojanova

引用次数: 163

Specifying truck movement in traffic models using cell-DEVS 使用cell-DEVS在交通模型中指定卡车运动

Proceedings 33rd Annual Simulation Symposium (SS 2000) Pub Date : 2000-04-16 DOI: 10.1109/SIMSYM.2000.844902

A. Davidson, Gabriel A. Wainer

引用次数: 21

On QoS multicasting performance in wide area networks 广域网中QoS组播性能研究

Proceedings 33rd Annual Simulation Symposium (SS 2000) Pub Date : 2000-04-16 DOI: 10.1109/SIMSYM.2000.844897

Tawfig Alrabiah, T. Znati

{"title":"On QoS multicasting performance in wide area networks","authors":"Tawfig Alrabiah, T. Znati","doi":"10.1109/SIMSYM.2000.844897","DOIUrl":"https://doi.org/10.1109/SIMSYM.2000.844897","url":null,"abstract":"Multicasting enables applications to scale to a large number of users without overloading the network and server resources. With the advent of multimedia applications, the focus of multicasting research has shifted from minimizing the overall cost of the multicast tree to finding one which supports the QoS requirements of the underlying multimedia application. Finding such a tree, however, is NP-complete. Several heuristics, such SPH, KPP, BSMA, and K-SLIM, have been proposed as an approximation of the optimal solution to the multimedia multicasting problem. These heuristics differ in their complexity, overhead and the way they minimize tree cost and end-to-end delay. This paper develops a simulation framework to study and compare the performance of these heuristics. Using the above framework, the multimedia multicast heuristics were tested with respect to the graph size, the multicast group size, and the delay requirements of the underlying multimedia traffic. The simulation results show that, an average, K-SLIM outperforms the other simulated heuristics. Furthermore, the results also show that the average cost of the multicast trees produced by SLIM+, a variation of K-SLIM which requires must less overhead, is close to the average cost of the multicast trees produced by K-SLIM.","PeriodicalId":361153,"journal":{"name":"Proceedings 33rd Annual Simulation Symposium (SS 2000)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122332645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An environment for formal modeling and simulation of control systems 控制系统的形式化建模和仿真环境

Proceedings 33rd Annual Simulation Symposium (SS 2000) Pub Date : 2000-04-16 DOI: 10.1109/SIMSYM.2000.844903

Bernardo Copstein, Michael da Costa Móra, L. Ribeiro

引用次数: 17

Multi-resolution modeling of power converter using waveform reconstruction 基于波形重构的功率变换器多分辨率建模

Proceedings 33rd Annual Simulation Symposium (SS 2000) Pub Date : 2000-04-16 DOI: 10.1109/SIMSYM.2000.844913

Yuwei Luo, R. Dougal, E. Santi

{"title":"Multi-resolution modeling of power converter using waveform reconstruction","authors":"Yuwei Luo, R. Dougal, E. Santi","doi":"10.1109/SIMSYM.2000.844913","DOIUrl":"https://doi.org/10.1109/SIMSYM.2000.844913","url":null,"abstract":"Computer simulation of switching power converters is complicated by the discontinuous (switching) nature of the converter waveforms. When switching details of the waveform are of interest, detailed simulations requiring extremely small time steps are needed. On the other hand, so-called averaged models allow capture of low-frequency converter dynamics (of interest for example when closing the feedback loop) by computing averaged continuous waveforms. The possibility of using relatively large time steps makes averaged models computationally efficient. A real-time hierarchical approach that combines the advantages of the two methods is proposed. An averaged model and a detailed model are used alternately in successive time intervals. The final state of one model at the end of a time interval is used to calculate the initial conditions for the other model running in the following time interval. The method is illustrated with a buck converter. The combined use of two models with a hierarchical or multilevel approach is shown to provide a powerful simulation tool for analysis and design. The detailed model is used 10% of the time and the averaged model 90% of the time. Results indicate that the detailed behavior is accurately simulated when the detailed model runs and the overall simulation time cost is lowered by running the averaged model 90% of the time. This approach provides a way to simulate the detailed behavior of a specific part in a rather large switching circuit network.","PeriodicalId":361153,"journal":{"name":"Proceedings 33rd Annual Simulation Symposium (SS 2000)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122609901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6