2012 11th International Symposium on Parallel and Distributed Computing最新文献

A Parallel High-Order Fictitious Domain Approach for Biomechanical Applications 一种生物力学应用的并行高阶虚拟域方法

2012 11th International Symposium on Parallel and Distributed Computing Pub Date : 2012-06-25 DOI: 10.1109/ISPDC.2012.45

M. Ruess, V. Varduhn, E. Rank, Z. Yosibash

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引用次数: 8

Dynamic Load Balancing in Data Grids by Global Load Estimation 基于全局负载估计的数据网格动态负载平衡

2012 11th International Symposium on Parallel and Distributed Computing Pub Date : 2012-06-25 DOI: 10.1109/ISPDC.2012.40

Lukas Rupprecht, Angelika Reiser, A. Kemper

{"title":"Dynamic Load Balancing in Data Grids by Global Load Estimation","authors":"Lukas Rupprecht, Angelika Reiser, A. Kemper","doi":"10.1109/ISPDC.2012.40","DOIUrl":"https://doi.org/10.1109/ISPDC.2012.40","url":null,"abstract":"Peer-to-Peer (P2P) technology can be utilized to combine remote resources and build distributed, high performance database systems, called data grids, which help to handle the rapidly increasing volumes of data produced by disciplines like astrophysics, biology, or geology. One major challenge of data grids are skewed query patterns which cause load imbalances and heavily diminish performance and availability. To avoid hot spots, sophisticated load balancing techniques are required. We present a dynamic replication strategy which prevents hot spots by dynamically replicating the hot data on different locations. The main questions of such a strategy are when to copy which data to what receivers and when to delete the copies. To answer these questions we propose a low-overhead, decentralized method which is able to deliver a highly accurate estimate of the global load and the single peer loads to all clients. We use that information in an optimization problem to determine the data to be replicated and the optimal replica receivers. A simulated performance evaluation based on a real-world scenario demonstrates the effectiveness of the approach.","PeriodicalId":287900,"journal":{"name":"2012 11th International Symposium on Parallel and Distributed Computing","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114085053","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: 4

A Parallel and Distributed Surrogate Model Implementation for Computational Steering 面向计算转向的并行分布式代理模型实现

2012 11th International Symposium on Parallel and Distributed Computing Pub Date : 2012-06-25 DOI: 10.1109/ISPDC.2012.35

D. Butnaru, G. Buse, D. Pflüger

引用次数: 15

Resolving Neighbourhood Relations in a Parallel Fluid Dynamic Solver 并行流体动力学求解器中邻域关系的求解

2012 11th International Symposium on Parallel and Distributed Computing Pub Date : 2012-06-25 DOI: 10.1109/ISPDC.2012.43

J. Frisch, R. Mundani, E. Rank

引用次数: 8

Hierarchical Hybrid Grids for Mantle Convection: A First Study 地幔对流的分层混合网格:首次研究

2012 11th International Symposium on Parallel and Distributed Computing Pub Date : 2012-06-25 DOI: 10.1109/ISPDC.2012.49

B. Gmeiner, M. Mohr, U. Rüde

引用次数: 3

Predictive Schemes for QoS Awareness of Publish/Subscribe Systems on MANET 基于MANET的发布/订阅系统的QoS感知预测方案

2012 11th International Symposium on Parallel and Distributed Computing Pub Date : 2012-06-25 DOI: 10.1109/ISPDC.2012.11

Imene Lahyani, M. Gassara, M. Jmaiel, C. Chassot

引用次数: 5

Automatic Optimization of In-Flight Memory Transactions for GPU Accelerators Based on a Domain-Specific Language for Medical Imaging 基于医学成像领域特定语言的GPU加速器飞行中内存事务自动优化

2012 11th International Symposium on Parallel and Distributed Computing Pub Date : 2012-06-25 DOI: 10.1109/ISPDC.2012.36

Richard Membarth, Frank Hannig, J. Teich, M. Körner, Wieland Eckert

{"title":"Automatic Optimization of In-Flight Memory Transactions for GPU Accelerators Based on a Domain-Specific Language for Medical Imaging","authors":"Richard Membarth, Frank Hannig, J. Teich, M. Körner, Wieland Eckert","doi":"10.1109/ISPDC.2012.36","DOIUrl":"https://doi.org/10.1109/ISPDC.2012.36","url":null,"abstract":"An efficient memory bandwidth utilization for GPU accelerators is crucial for memory bound applications. In medical imaging, the performance of many kernels is limited by the available memory bandwidth since only a few operations are performed per pixel. For such kernels only a fraction of the compute power provided by GPU accelerators can be exploited and performance is predetermined by memory bandwidth. As a remedy, this paper investigates the optimal utilization of available memory bandwidth by means of increasing in-flight memory transactions. Instead of doing this manually for different GPU accelerators, the required CUDA and OpenCL code is automatically generated from descriptions in a Domain-Specific Language (DSL) for the considered application domain. Moreover, the DSL is extended to also support global reduction operators. We show that the generated target-specific code improves bandwidth utilization for memory-bound kernels significantly. Moreover, competitive performance compared to the GPU back end of the widely used image processing library OpenCV can be achieved.","PeriodicalId":287900,"journal":{"name":"2012 11th International Symposium on Parallel and Distributed Computing","volume":"209 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123037117","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

Scheduling Architecturally-Supported Regions with Precedence-Based Priorities 基于优先级调度架构支持的区域

2012 11th International Symposium on Parallel and Distributed Computing Pub Date : 2012-06-25 DOI: 10.1109/ISPDC.2012.46

L. Masko, M. Tudruj

引用次数: 0

Teaching Parallel Programming Models on a Shallow-Water Code 浅水代码中并行编程模型的教学

2012 11th International Symposium on Parallel and Distributed Computing Pub Date : 2012-06-25 DOI: 10.1109/ISPDC.2012.48

Alexander Breuer, M. Bader

引用次数: 31

Improving the Allocation of Communication-Intensive Applications in Clouds Using Time-Related Information 利用时间相关信息改进云中通信密集型应用的分配

2012 11th International Symposium on Parallel and Distributed Computing Pub Date : 2012-06-25 DOI: 10.1109/ISPDC.2012.18

A. Stefano, G. Morana, D. Zito

引用次数: 9