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International Conference on Parallel Processing, 2004. ICPP 2004.最新文献

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MobiGATE: a mobile gateway proxy for the active deployment of transport entities MobiGATE:用于主动部署传输实体的移动网关代理
International Conference on Parallel Processing, 2004. ICPP 2004. Pub Date : 2004-08-15 DOI: 10.1109/ICPP.2004.1327967
Yongjie Zheng, A. Chan
{"title":"MobiGATE: a mobile gateway proxy for the active deployment of transport entities","authors":"Yongjie Zheng, A. Chan","doi":"10.1109/ICPP.2004.1327967","DOIUrl":"https://doi.org/10.1109/ICPP.2004.1327967","url":null,"abstract":"Using gateway proxies is one important approach to facilitating adaptation across wireless and mobile environments. Importantly, augmented service entities deployed within the gateway proxy residing on the wired network can be composed and deployed to shield mobile clients from the effects of poor network characteristics. The usual approach to the static composition of service entities on the gateway proxy is to have these service entities interact with each other by explicitly invoking procedures on the named interface. The tight coupling of interfaces inhibits the flexible composition and adaptation of the service entities to the dynamic operating characteristics of wireless networks. We present a Mobile GATEway for the active deployment of transport entities or MobiGATE (pronounced as MobiGate) for short. MobiGATE is a mobile middleware framework that supports the robust and flexible composition of transport entities, known as streamlets. The flow of data traffic is subjected to processing by a chain of streamlets. Each streamlet encapsulates a service entity that serves to adapt the flow of traffic across the wireless network. To facilitate the dynamic reconfiguration of the streamlets, we advocate applying the concept of coordination as the unifying approach to composing these transport service entities. Importantly, MobiGATE delineates a clear separation of interdependency parts from the service-specific computational codes of those service entities by using a separate coordination language to describe the coordination among streamlet service entities. To this end, we have defined a compositional language called MobiGATE coordination language (MCL) that provides rich constructs to support the definition of compositions, with constrained type validation and checking.","PeriodicalId":106240,"journal":{"name":"International Conference on Parallel Processing, 2004. ICPP 2004.","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124238942","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: 1
Future building blocks for parallel architectures 并行架构的未来构建块
International Conference on Parallel Processing, 2004. ICPP 2004. Pub Date : 2004-08-15 DOI: 10.1109/ICPP.2004.1327943
U. Brüning, W. Giloi
{"title":"Future building blocks for parallel architectures","authors":"U. Brüning, W. Giloi","doi":"10.1109/ICPP.2004.1327943","DOIUrl":"https://doi.org/10.1109/ICPP.2004.1327943","url":null,"abstract":"Early parallel architectures where shared memory systems (UMA, NUMA), which had the disadvantage of the shared memory bottleneck that limited the scalability of the system. In contrast, distributed memory architectures with message passing (NORMAs) provided any desired scalability; however, at the cost of a substantial communication latency. The latency could be reduced by custom communication hardware (examples: SUPRENUM, MANNA) yet since there was still a software routine involved, the remaining latency was in the order of microseconds. Therefore, and because of the simpler programming model of shared memory, it became the trend of the nineties to return to UMAs and NUMAs, employing powerful communication hardware to minimize the remote memory access time.","PeriodicalId":106240,"journal":{"name":"International Conference on Parallel Processing, 2004. ICPP 2004.","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122088680","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
A case study in exploiting temporal uncertainty in parallel simulations 在并行模拟中利用时间不确定性的案例研究
International Conference on Parallel Processing, 2004. ICPP 2004. Pub Date : 2004-08-15 DOI: 10.1109/ICPP.2004.1327916
M. Loper, R. Fujimoto
{"title":"A case study in exploiting temporal uncertainty in parallel simulations","authors":"M. Loper, R. Fujimoto","doi":"10.1109/ICPP.2004.1327916","DOIUrl":"https://doi.org/10.1109/ICPP.2004.1327916","url":null,"abstract":"Approximate Time (AT) has been proposed as a means for expressing temporal uncertainty in distributed simulation applications in order to enhance parallel performance. This is accomplished by specifying time intervals rather than precise values to indicate when an event might occur. This paper describes a case study in applying AT to a queueing simulation application in order to assess the performance and accuracy that can be obtained using this technique. Up to an order of magnitude speedup was obtained, with error in throughput statistics less than 3%, although somewhat larger error was reported in delay statistics.","PeriodicalId":106240,"journal":{"name":"International Conference on Parallel Processing, 2004. ICPP 2004.","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132574239","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: 17
PDAgent: a platform for developing and deploying mobile agent-enabled applications for wireless devices PDAgent:为无线设备开发和部署支持移动代理的应用程序的平台
International Conference on Parallel Processing, 2004. ICPP 2004. Pub Date : 2004-08-15 DOI: 10.1109/ICPP.2004.1327961
Jiannong Cao, Daniel C. K. Tse, A. Chan
{"title":"PDAgent: a platform for developing and deploying mobile agent-enabled applications for wireless devices","authors":"Jiannong Cao, Daniel C. K. Tse, A. Chan","doi":"10.1109/ICPP.2004.1327961","DOIUrl":"https://doi.org/10.1109/ICPP.2004.1327961","url":null,"abstract":"Mobile agents (MAs) can support mobile computing by carrying out tasks autonomously for a mobile user temporarily disconnected from the network. We describe PDAgent, a lightweight and highly portable platform for developing and deploying mobile agent-enabled applications on wireless handheld devices. Our approach offers the following advantages: (i) It does not require installing MA server on handheld devices and supports the adoption of any kind of mobile agent system at network hosts, while at the same time allow mobile users to have control of mobile agent activities; (ii) It support dynamic downloading of MA-enabled applications which can be made aware of and adaptive to the user's current context, and deploying the application to perform various tasks on behalf of the user over the wired network; (iii) It requires the minimum network connectivity and cost for users to deploy their applications. PDAgent provides APIs which allow developers to build new mobile applications on top of PDAgent. Example applications have been developed for PDAgent. We report on and discuss the results of experimental performance evaluations of PDAgent.","PeriodicalId":106240,"journal":{"name":"International Conference on Parallel Processing, 2004. ICPP 2004.","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130628770","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: 10
16-bit FP sub-word parallelism to facilitate compiler vectorization and improve performance of image and media processing 16位FP子字并行，方便编译矢量化，提高图像和媒体处理性能
International Conference on Parallel Processing, 2004. ICPP 2004. Pub Date : 2004-08-15 DOI: 10.1109/ICPP.2004.1327964
D. Etiemble, L. Lacassagne
{"title":"16-bit FP sub-word parallelism to facilitate compiler vectorization and improve performance of image and media processing","authors":"D. Etiemble, L. Lacassagne","doi":"10.1109/ICPP.2004.1327964","DOIUrl":"https://doi.org/10.1109/ICPP.2004.1327964","url":null,"abstract":"We consider the implementation of 16-bit floating point instructions on a Pentium 4 and a PowerPC G5 for image and media processing. By measuring the execution time of benchmarks with these new simulated instructions, we show that significant speed-up is obtained compared to 32-bit FP versions. For image processing, the speed-up both comes from doubling the number of operations per SIMD instruction and the better cache behavior with byte storage. For data stream processing with arrays of structures, the speed-up mainly comes from the wider SIMD instructions.","PeriodicalId":106240,"journal":{"name":"International Conference on Parallel Processing, 2004. ICPP 2004.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130812444","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
Taming lambda's for applications; the OptIPuter system software 为应用程序训练lambda;OptIPuter系统软件
International Conference on Parallel Processing, 2004. ICPP 2004. Pub Date : 2004-07-07 DOI: 10.1109/ICPADS.2004.84
A. Chien
{"title":"Taming lambda's for applications; the OptIPuter system software","authors":"A. Chien","doi":"10.1109/ICPADS.2004.84","DOIUrl":"https://doi.org/10.1109/ICPADS.2004.84","url":null,"abstract":"We are developing application abstractions called distributed virtual computers (DVC), which simplify application use of dynamic optical resources. DVC descriptions naturally express communication and computation resource requirements, enabling coordinated resource binding. We describe initial experience with DVCs and how they provide an integrating architecture for lambda grids. The OptIPuter project is a large multiinstitutional project led by Larry Smarr at the University of California, San Diego (UCSD) and Tom DeFanti at the University of Illinois at Chicago (UIC). Other software efforts include optical signaling software, visualization, distributed configuration management, and two driving applications involving petabytes of data. We are also constructing a high-speed OptIPuter testbed.","PeriodicalId":106240,"journal":{"name":"International Conference on Parallel Processing, 2004. ICPP 2004.","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125181371","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
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