Proceedings 10th Euromicro Workshop on Parallel, Distributed and Network-based Processing最新文献_第6页

Improving SMT performance scheduling processes 改进SMT性能调度流程

Proceedings 10th Euromicro Workshop on Parallel, Distributed and Network-based Processing Pub Date : 2002-01-09 DOI: 10.1109/EMPDP.2002.994302

R. Gonçalves, P. Navaux

引用次数: 3

Assignment schemes for replicated services in Jini Jini中复制服务的分配方案

Proceedings 10th Euromicro Workshop on Parallel, Distributed and Network-based Processing Pub Date : 2002-01-09 DOI: 10.1109/EMPDP.2002.994249

V. Georgiev, V. Getov

{"title":"Assignment schemes for replicated services in Jini","authors":"V. Georgiev, V. Getov","doi":"10.1109/EMPDP.2002.994249","DOIUrl":"https://doi.org/10.1109/EMPDP.2002.994249","url":null,"abstract":"This paper introduces and compares different schemes for assignment of replicated services in Jini - an object-oriented middleware architecture for network-centric computing. Each client in Jini has to be assigned a service selected from the pool of available services, which have joined the Jini federation and registered with the lookup service. Both early and delayed assignments are considered as basic options in our evaluation. The information for the system load can be collected at four different levels of detail in order to be used in the process of assignment decisions. In our analysis, we concentrate on the scenario where the requests for service generated by the clients follow independent user-initiated or machine-initiated transactions. The performance evaluation of the assignment schemes follows the queuing systems methodology. The comparisons are done with regard to the mean residence time of the clients in the system as well as the control overhead imposed by the assignment schemes. A case study of the scheme using the lowest information level proves the effectiveness, applicability and limitations of the delayed assignment in comparison to the early one. These results are a first step towards developing a methodology for building large-scale applications for Jini-based distributed systems.","PeriodicalId":126071,"journal":{"name":"Proceedings 10th Euromicro Workshop on Parallel, Distributed and Network-based Processing","volume":"132 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115423740","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: 3

Integration of legacy client-server applications in a secure multi-tier architecture 在安全的多层体系结构中集成遗留客户机-服务器应用程序

Proceedings 10th Euromicro Workshop on Parallel, Distributed and Network-based Processing Pub Date : 2002-01-09 DOI: 10.1109/EMPDP.2002.994289

Domenico Cotroneo, A. Mazzeo, L. Romano, S. Russo

{"title":"Integration of legacy client-server applications in a secure multi-tier architecture","authors":"Domenico Cotroneo, A. Mazzeo, L. Romano, S. Russo","doi":"10.1109/EMPDP.2002.994289","DOIUrl":"https://doi.org/10.1109/EMPDP.2002.994289","url":null,"abstract":"Presents a CORBA-based multi-tier architecture which is capable of adding security to an existing service. We assume the legacy application is available as a compiled program consisting of a client and a server module. Under these assumptions, we show how to build a new system which re-integrates the original service and secures it. The architecture we propose is quite flexible and represents a framework which can be adopted - with minor changes - for improving the security level of a wide class of legacy systems. A system prototype has been developed and its performance evaluated. The prototype uses digital certificates which can be provided by virtually any certification authority. A fundamental advantage of the proposed approach is that the legacy server is integrated in the secure system with no changes being made to it. This minimizes the development effort, since full reuse of existing software is achieved. Furthermore, backward compatibility is preserved, since it is possible to integrate the new clients with the pre-existing applications, protecting the investment in legacy systems.","PeriodicalId":126071,"journal":{"name":"Proceedings 10th Euromicro Workshop on Parallel, Distributed and Network-based Processing","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121939549","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

Characterizing parallel workloads to reduce multiple writer overhead in shared virtual memory systems 描述并行工作负载以减少共享虚拟内存系统中的多个写器开销

Proceedings 10th Euromicro Workshop on Parallel, Distributed and Network-based Processing Pub Date : 2002-01-09 DOI: 10.1109/EMPDP.2002.994285

S. Petit, J. Sahuquillo, A. Pont

{"title":"Characterizing parallel workloads to reduce multiple writer overhead in shared virtual memory systems","authors":"S. Petit, J. Sahuquillo, A. Pont","doi":"10.1109/EMPDP.2002.994285","DOIUrl":"https://doi.org/10.1109/EMPDP.2002.994285","url":null,"abstract":"Shared virtual memory (SVM) systems, because of their software implementation, enable shared-memory programming at a low design and maintenance cost. Nevertheless, as hardware implementations become faster, their performance is still far from that achieved by distributed shared memory (DSM) systems. Nowadays, SVM systems use relaxed memory consistency models and multiple writer protocols as techniques to reduce latencies and false sharing, respectively. However, these techniques induce additional overhead that decreases system performance. We performed a study of workload behavior aimed at improving the design of SVM protocols. The work focused on the identification of the type of shared data patterns that can appear in the accesses to protected sections using semaphores. Most coherence actions in SVM systems are performed as a consequence of the write operations executed in critical sections, so we pay special attention to the write operations performed when multiple writers are allowed. As these write operations may present spatial locality, we also study the write patterns on shared pages with similar behaviour. Different software filters are applied in the instrumented parallel workloads selected to capture and classify the most common sharing patterns. This enables the recognition of those patterns in which coherence overhead can be reduced by modifying the coherence actions performed by the protocol. Despite the fact that the performance evaluation of new coherence solutions is not our main goal, the ideas presented to improve the behaviour of SVM systems can be implemented at a reasonable hardware/software cost.","PeriodicalId":126071,"journal":{"name":"Proceedings 10th Euromicro Workshop on Parallel, Distributed and Network-based Processing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128753829","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

The CDAG: a data structure for automatic parallelization for a multithreaded architecture CDAG:用于多线程体系结构的自动并行化的数据结构

Proceedings 10th Euromicro Workshop on Parallel, Distributed and Network-based Processing Pub Date : 2002-01-09 DOI: 10.1109/EMPDP.2002.994274

B. Klauer, Frank Eschmann, R. Moore, K. Waldschmidt

引用次数: 8

Eventually consistent failure detectors 最终一致的故障检测器

Proceedings 10th Euromicro Workshop on Parallel, Distributed and Network-based Processing Pub Date : 2001-07-03 DOI: 10.1109/EMPDP.2002.994239

M. Larrea, Antonio Fernández, S. Arévalo

{"title":"Eventually consistent failure detectors","authors":"M. Larrea, Antonio Fernández, S. Arévalo","doi":"10.1109/EMPDP.2002.994239","DOIUrl":"https://doi.org/10.1109/EMPDP.2002.994239","url":null,"abstract":"The concept of unreliable failure detector was introduced by T.D. Chandra and S. Toueg (1996) as a mechanism that provides information about process failures. This mechanism has been used to solve different problems in asynchronous systems, in particular the Consensus problem. In this paper, we present a new class of unreliable failure detectors, which we call Eventually Consistent and denote by /spl square/C. This class adds to the failure detection capabilities of other classes an eventual leader election capability. This capability allows all correct processes to eventually choose the same correct process as leader. We study the relationship between /spl square/C and other classes of failure detectors. We also propose an efficient algorithm to trans form /spl square/C into /spl square/P in models of partial synchrony. Finally, to show the power of this new class of failure detectors, we present a Consensus algorithm based on /spl square/C. This algorithm successfully exploits the leader election capability of the failure detector and performs better in number of rounds than all the previously proposed algorithms for failure detectors with eventual accuracy.","PeriodicalId":126071,"journal":{"name":"Proceedings 10th Euromicro Workshop on Parallel, Distributed and Network-based Processing","volume":"281 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117119116","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: 44

Proceedings 10th Euromicro Workshop on Parallel, Distributed and Network-based Processing 第10届并行、分布式和网络处理欧洲微研讨会论文集

Proceedings 10th Euromicro Workshop on Parallel, Distributed and Network-based Processing Pub Date : 1900-01-01 DOI: 10.1109/EMPDP.2002.994204

N. Podhorszki, C. Rodríguez

引用次数: 11

DEWIZ-event-based debugging on the grid dewiz -基于事件的网格调试

Proceedings 10th Euromicro Workshop on Parallel, Distributed and Network-based Processing Pub Date : 1900-01-01 DOI: 10.1109/EMPDP.2002.994258

D. Kranzlmuller

引用次数: 2