Proceedings of the IEEE/ACM SC95 Conference最新文献

Interprocedural Compilation of Irregular Applications for Distributed Memory Machines 分布式内存机中不规则应用程序的程序间编译

Proceedings of the IEEE/ACM SC95 Conference Pub Date : 1995-12-08 DOI: 10.1145/224170.224336

G. Agrawal, J. Saltz

引用次数: 37

Parallel Algorithms for Forward and Back Substitution in Direct Solution of Sparse Linear Systems 稀疏线性系统直接解的正向和反向代换并行算法

Proceedings of the IEEE/ACM SC95 Conference Pub Date : 1995-12-08 DOI: 10.1145/224170.224471

Anshul Gupta, Vipin Kumar

引用次数: 20

Relative Debugging and its Application to the Development of Large Numerical Models 相对调试及其在大型数值模型开发中的应用

Proceedings of the IEEE/ACM SC95 Conference Pub Date : 1995-12-08 DOI: 10.1145/224170.224350

D. Abramson, Ian T Foster, J. Michalakes, R. Sosič

引用次数: 34

Quantum Chromodynamics Simulation on NWT NWT的量子色动力学模拟

Proceedings of the IEEE/ACM SC95 Conference Pub Date : 1995-12-08 DOI: 10.1145/224170.224403

M. Yoshida, A. Nakamura, M. Fukuda, Takashi Nakamura, S. Hioki

引用次数: 4

High-Performance Incremental Scheduling on Massively Parallel Computers — A Global Approach 大规模并行计算机上的高性能增量调度&#8212全球策略

Proceedings of the IEEE/ACM SC95 Conference Pub Date : 1995-12-08 DOI: 10.1145/224170.224358

Minyou Wu, W. Shu

引用次数: 4

Lazy Release Consistency for Hardware-Coherent Multiprocessors 硬件相干多处理器的延迟释放一致性

Proceedings of the IEEE/ACM SC95 Conference Pub Date : 1995-12-08 DOI: 10.1145/224170.224398

L. Kontothanassis, M. Scott, R. Bianchini

{"title":"Lazy Release Consistency for Hardware-Coherent Multiprocessors","authors":"L. Kontothanassis, M. Scott, R. Bianchini","doi":"10.1145/224170.224398","DOIUrl":"https://doi.org/10.1145/224170.224398","url":null,"abstract":"Release consistency is a widely accepted memory model for distributed shared memory systems. Eager release consistency represents the state of the art in release consistent protocols for hardware-coherent multiprocessors, while lazy release consistency has been shown to provide better performance for software distributed shared memory (DSM). Several of the optimizations performed by lazy protocols have the potential to improve the performance of hardware-coherent multiprocessors as well, but their complexity has precluded a hardware implementation. With the advent of programmable protocol processors it may become possible to use them after all. We present and evaluate a lazy release-consistent protocol suitable for machines with dedicated protocol processors. This protocol admits multiple concurrent writers, sends write notices concurrently with computation, and delays invalidations until acquire operations. We also consider a lazier protocol that delays sending write notices until release operations. Our results indicate that the first protocol outperforms eager release consistency by as much as 20% across a variety of applications. The lazier protocol, on the other hand, is unable to recoup its high synchronization overhead. This represents a qualitative shift from the DSM world, where lazier protocols always yield performance improvements. Based on our results, we conclude that machines with flexible hardware support for coherence should use protocols based on lazy release consistency, but in a less ''aggressively lazy'' form than is appropriate for DSM.","PeriodicalId":269909,"journal":{"name":"Proceedings of the IEEE/ACM SC95 Conference","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124813053","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: 34

MONSTER — The Ghost in the Connection Machine: Modularity of Neural Systems in Theoretical Evolutionary Research 怪物& # 8212;连接机器中的幽灵:理论进化研究中神经系统的模块化

Proceedings of the IEEE/ACM SC95 Conference Pub Date : 1995-12-08 DOI: 10.1145/224170.224226

Nigel Snoad, T. Bossomaier

{"title":"MONSTER — The Ghost in the Connection Machine: Modularity of Neural Systems in Theoretical Evolutionary Research","authors":"Nigel Snoad, T. Bossomaier","doi":"10.1145/224170.224226","DOIUrl":"https://doi.org/10.1145/224170.224226","url":null,"abstract":"Both genetic algorithms (GAs) and artificial neural networks (ANNs) (connectionist learning models) are effective generalisations of successful biological techniques to the artificial realm. Both techniques are inherently parallel and seem ideal for implementation on the current generation of parallel supercomputers. We consider how the two techniques complement each other and how combining them (i.e. evolving artificial neural networks with a genetic algorithm), may give insights into the evolution of structure and modularity in biological brains. The incorporation of evolutionary and modularity concepts into artificial systems has the potential to decrease the development time of ANNs for specific image and information processing applications. General considerations when genetically encoding ANNs are discussed, and a new encoding method developed, which has the potential to simplify the generation of complex modular networks. The implementation of this technique on a CM-5 parallel supercomputer raises many practical and theoretical questions in the application and use of evolutionary models with artificial neural networks.","PeriodicalId":269909,"journal":{"name":"Proceedings of the IEEE/ACM SC95 Conference","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129434892","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: 8

Parallelizing Navier-Stokes Computations on a Variety of Architectural Platforms 在各种架构平台上并行化Navier-Stokes计算

Proceedings of the IEEE/ACM SC95 Conference Pub Date : 1995-12-08 DOI: 10.1145/224170.224410

D. Jayasimha, M. Hayder, S. K. Pillay

引用次数: 2

Parallel Matrix-Vector Product Using Approximate Hierarchical Methods 并行矩阵向量积的近似层次方法

Proceedings of the IEEE/ACM SC95 Conference Pub Date : 1995-12-08 DOI: 10.1145/224170.224487

A. Grama, Vipin Kumar, A. Sameh

引用次数: 10

Index Array Flattening Through Program Transformation 通过程序变换使索引数组平坦化

Proceedings of the IEEE/ACM SC95 Conference Pub Date : 1995-12-08 DOI: 10.1145/224170.224420

R. Das, P. Havlak, J. Saltz, K. Kennedy

引用次数: 37