36th Annual Simulation Symposium, 2003.最新文献

An ns-based Bluetooth topology construction simulation environment 基于nss的蓝牙拓扑构建仿真环境

36th Annual Simulation Symposium, 2003. Pub Date : 2003-03-30 DOI: 10.1109/SIMSYM.2003.1192808

Chia-Jui Hsu, Yuh-Jzer Joung

引用次数: 12

Parallelizing black oil reservoir simulation systems for SMP machines SMP机黑油藏并行模拟系统

36th Annual Simulation Symposium, 2003. Pub Date : 2003-03-30 DOI: 10.1109/SIMSYM.2003.1192817

Fabrício A. B. Silva, E. P. Lopes, E. Aude, Flavio S. Mendes, H. Serdeira, Julio T. C. Silveira

{"title":"Parallelizing black oil reservoir simulation systems for SMP machines","authors":"Fabrício A. B. Silva, E. P. Lopes, E. Aude, Flavio S. Mendes, H. Serdeira, Julio T. C. Silveira","doi":"10.1109/SIMSYM.2003.1192817","DOIUrl":"https://doi.org/10.1109/SIMSYM.2003.1192817","url":null,"abstract":"We discuss the parallelization for SMP machines of black oil reservoir simulation programs. A reservoir simulator is a sophisticated computer program used to predict the future performance of a reservoir based on its current state and past performance. SMP architectures are composed of homogeneous microprocessors sharing access to the main memory. Due to advancements in microprocessor technology and the shared memory access, the best parallelization strategy for SMP (symmetric multiprocessing) machines may differ significantly from strategies used previously in MPP machines. We present a parallel implementation optimized for SMP machines of BOAST a three-phase, three-dimensional black oil simulator. The communication library used was LAM-MPI. We used the domain decomposition technique to parallelize the two more computing-intensive subprograms (routines) of BOAST which take about 80% of the total execution time of a typical simulation in a SMP machine. The speed-up obtained show that the chosen parallelization strategy has good load balancing and low communication overhead, achieving near-optimal performance in several simulations.","PeriodicalId":187135,"journal":{"name":"36th Annual Simulation Symposium, 2003.","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129885690","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: 5

Simulating highly dependable applications in a distributed computing environment 在分布式计算环境中模拟高度可靠的应用程序

36th Annual Simulation Symposium, 2003. Pub Date : 2003-03-30 DOI: 10.1109/SIMSYM.2003.1192803

Yinong Chen, Zhongshi He

引用次数: 2

Modeling as craft 作为工艺的建模

36th Annual Simulation Symposium, 2003. Pub Date : 2003-03-30 DOI: 10.1109/SIMSYM.2003.1192792

P. Fishwick

引用次数: 0

Approximate connectivity graph generation in mobile ad hoc radio networks 移动自组织无线网络中近似连接图的生成

36th Annual Simulation Symposium, 2003. Pub Date : 2003-03-30 DOI: 10.1109/SIMSYM.2003.1192801

C. Barrett, M. Marathe, D. C. Engelhart, A. Sivasubramaniam

{"title":"Approximate connectivity graph generation in mobile ad hoc radio networks","authors":"C. Barrett, M. Marathe, D. C. Engelhart, A. Sivasubramaniam","doi":"10.1109/SIMSYM.2003.1192801","DOIUrl":"https://doi.org/10.1109/SIMSYM.2003.1192801","url":null,"abstract":"Simulation is a widely used technique in the design and evaluation of mobile ad-hoc networks. However time and space constraints can often limit the extent of the size, complexity and detail of the networks that can be simulated. Approximations in the system model can possibly alleviate this problem, but we need to be careful about how much accuracy is compromised when employing them. This paper specifically focuses on one aspect of simulation cost that is incurred in the computation of the connectivity graph that is used to describe what mobile nodes can communicate with whom. Since such a graph is recomputed frequently during the simulation, we explore alternatives to computing this graph exactly and their accuracy in capturing the actual graph properties. We investigate three approximation alternatives to compute graph connectivity, and propose metrics for expressing their deviations from the actual graph. In addition, the graphs generated by these approximations are compared to the original by examining two previously proposed graph measures - the degree and clustering coefficient distributions. Results indicate that these approximations can be quite effective in avoiding repeated calculation of exact graph connectivity.","PeriodicalId":187135,"journal":{"name":"36th Annual Simulation Symposium, 2003.","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129981633","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

Enhancing multimedia caching algorithm performance through new interval definition strategies 通过新的间隔定义策略提高多媒体缓存算法的性能

36th Annual Simulation Symposium, 2003. Pub Date : 2003-03-30 DOI: 10.1109/SIMSYM.2003.1192811

Javier Fernández, J. Carretero, Félix García, J. M. Pérez, A. Calderón

引用次数: 6

An efficient scheme for chaining with client-centric buffer reservation for multi-media streaming 为多媒体流提供了一种以客户端为中心的缓冲区保留链接的有效方案

36th Annual Simulation Symposium, 2003. Pub Date : 2003-03-30 DOI: 10.1109/SIMSYM.2003.1192795

Joel Jeffrey Schultz, T. Znati

{"title":"An efficient scheme for chaining with client-centric buffer reservation for multi-media streaming","authors":"Joel Jeffrey Schultz, T. Znati","doi":"10.1109/SIMSYM.2003.1192795","DOIUrl":"https://doi.org/10.1109/SIMSYM.2003.1192795","url":null,"abstract":"This paper proposes a \"chaining\" based media content delivery algorithm which supports \"VCR operations\". The proposed algorithm explicitly balances the client-side requirements to support the VCR functionalities, while preserving the advantages of using the client playback device as a proxy video server, as specified in the original chaining algorithm. The paper also investigates the effect of supporting VCR operations on the performance of the proposed scheme and the impact these operations have on chaining. To this end, a study to assess the performance of the proposed algorithm, within this framework, is conducted. The results show that, for a small community of clients, increasing user activity, in terms of VCR operations performed during stream delivery, have detrimental effects on primary bandwidth reduction. Furthermore, the results show that a limited subset of VCR operations appears to boost the effectiveness of chaining. Introducing a full range of VCR functionalities, however, lead to a decrease in the amount of primary server bandwidth reduction, thereby indicating an apparent interplay between the number of clients viewing a video and the range of VCR operations supported.","PeriodicalId":187135,"journal":{"name":"36th Annual Simulation Symposium, 2003.","volume":"68 1-2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114131620","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: 7

A supernet: engineering traffic across network boundaries 超级网络:跨网络边界的工程流量

36th Annual Simulation Symposium, 2003. Pub Date : 2003-03-30 DOI: 10.1109/SIMSYM.2003.1192805

S. Lincke, C. Hood

引用次数: 1

Efficient microprocessor design space exploration through statistical simulation 高效微处理器设计通过统计仿真探索空间

36th Annual Simulation Symposium, 2003. Pub Date : 2003-03-30 DOI: 10.1109/SIMSYM.2003.1192818

L. Eeckhout, D. Stroobandt, K. D. Bosschere

引用次数: 6

Implementing parallel Cell-DEVS 实现并行Cell-DEVS

36th Annual Simulation Symposium, 2003. Pub Date : 2003-03-30 DOI: 10.1109/SIMSYM.2003.1192823

Alejandro J. Troccoli, Gabriel A. Wainer

引用次数: 54