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检索条件"任意字段=Proceedings - 16th Symposium on Computer Architecture and High Performance Computing"

共 2316 条记录，以下是121-130 订阅

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PeerStripe: A p2p-based large-file storage for desktop grids 07

PeerStripe: A p2p-based large-file storage for desktop grids

引用

16th International symposium on high performance Distributed computing 2007, HPDC'07 and Co-Located Workshops

作者： Miller, Chreston Butler, Patrick Shah, Ankur Butt, Ali R. Dept. of Computer Science Virginia Tech. Blacksburg VA 24061

ISBN: (纸本)1595936734

In desktop grids the use of off-the-shelf shared components makes the use of dedicated resources economically nonviable and increases the complexity of design of efficient storage systems that are required to address the exponentially growing storage demands of modern applications that run on these platforms. To address this challenge, we present PeerStripe, a storage system that transparently distributes files to storage space contributed by participants that have joined a peer-to-peer (p2p) network. PeerStripe uses structured p2p routing to yield a scalable, robust, reliable, and self-organizing storage system. the novelty of PeerStripe lies in its ingenious use of striping and error coding techniques in a heterogeneous distributed environment to stor every large data files. Our evaluation of PeerStripe shows that it can achieve acceptable performance for applications in desktop grids.

关键词： Distributed computer systems

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Partial content distribution on high performance networks 07

Partial content distribution on high performance networks

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16th International symposium on high performance Distributed computing 2007, HPDC'07 and Co-Located Workshops

作者： Weigle, Eric H. Chien, Andrew A. Computer Science and Engineering Center for Networked Systems University of California San Diego

ISBN: (纸本)1595936734

We present and analyze techniques to efficiently solve the partial content distribution problem-distributing a logical data set to receivers which individually desire only subsets of the total data. this is a more general and fundamentally different problem than traditional whole-file content distribution;providing new challenges and new optimization opportunities. It supports a wider variety of use models, e.g., striped file transfer, scatter/gather, or distributed editing. this work develops new metadata management and transfer scheduling techniques providing good results on high performance networks. Distributed applicationsin such systems tend to have data requirements more complicated than just total overlap at every node: transfers desired differ dramatically from whole-file content distribution. Traditional approaches perform poorly in such cases. We provide empirical data exhibiting these limitations, evaluate a new BitTorrent-based implementation of our ideas, and show order of magnitude improvements in bandwidth and latency. Copyright 2007 ACM.

关键词： Distributed computer systems

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A framework for exploiting adaptation in high heterogeneous distributed processing 14

A framework for exploiting adaptation in high heterogeneous ...

引用

14th symposium on computer architecture and high performance computing

作者： Yamin, AC Barbosa, JV Augustin, I da Silva, L Real, R Geyer, C Cavalheiro, G Catholic Univ Pelotas Pelotas RS Brazil

ISBN: (纸本)0769517722

ISAM(1) is a proposal directed to resource management in heterogeneous networks, supporting physical and logical mobility, dynamic adaptation and the execution of distributed applications based on components. In order to achieve its goals, ISAM uses, as strategy, an integrated enviromnent that: (a) provides a programming paradigm and its execution environment;(b) handles the adaptation process through a multilevel collaborative model, in which both the system and the application contribute. In this paper we discuss the main mechanisms used to implement the ISAM features, and we also present a parallel application that explores some of this features.

关键词： Application software Collaboration computer networks Distributed computing Distributed processing Grid computing Mobile computing Peer to peer computing Pervasive computing Proposals

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Towards a workflow-aware distributed versioning file system for metacomputing systems 05

Towards a workflow-aware distributed versioning file system ...

引用

14th IEEE International symposium on high performance Distributed computing

作者： Wang, Y Univ Alberta Dept Comp Sci Edmonton AB T6G 2M7 Canada

ISBN: (纸本)0780390377

In this paper, a novel workflow-aware distributed versioning file system, WAD-VFS is presented to overcome the shortcoming of traditional DFS and facilitate the high performance computing. Our preliminary simulation results are impressive and can hence serve as a supporting evidence of deploying WAD-VFS to our ongoing metacomputing project, Trellis system.

关键词： File systems Metacomputing Distributed computing Processor scheduling Backplanes Target tracking Tree data structures Concrete computer applications computer architecture

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Grid computing on massively multi-user online platform

Grid computing on massively multi-user online platform

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16th International Conference on computer Communications and Networks

作者： Yu, Y. C. Allen Law, K. L. Eddie Ryerson Univ Toronto ON Canada

ISBN: (纸本)9781424412501

Large-scale online applications such as Massively Multiplayer Online Games (MMOGs) require large amount of computing resources that support many players interacting simultaneously. Cluster computing is the technology mostly used by online game designing firms. Cluster computing is limited by the number and types of computers it can manage, but these computers are usually in the same geographical location. On the other hand, Grid computing offers large-scale high performance distributed computing which connects various types of computing resources on the Internet. In this paper, we design a Grid computing platform called the Massively Multi-user Online Platform (MMOP). the objectives of this proposed design are to offer scalability, flexibility, and simplicity to the development processes of distributed applications. MMOP allows executions of applications based on specified policy rules with dynamic addition of computing resources at run-time. Each application is managed separately, and multiple. large-scale applications can share a single computing architecture. An online game has been built to test the functional behavior of the MMOP. From the simulation results, the MMOP has demonstrated as a high performance and scalable computing architecture.

关键词： Grid computing

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Parallel implementation of a lattice-gauge-theory code: studying quark confinement on PC clusters 15

Parallel implementation of a lattice-gauge-theory code: stud...

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15th symposium on computer architecture and high performance computing

作者： Cucchieri, A Mendes, T Travieso, G Taurines, AR Univ Sao Paulo Inst Fis Sao Carlos BR-13560970 Sao Carlos SP Brazil

ISBN: (纸本)0769520464

We consider the implementation of a parallel Monte Carlo code for high-performance simulations on PC clusters with MPI. We carry out tests of speedup and efficiency. the code is used for numerical simulations of pure SU (2) lattice gauge theory at very large lattice volumes, in order to study the infrared behavior of gluon and ghost propagators. this problem is directly related to the confinement of quarks and gluons in the physics of strong interactions.

关键词： Computational modeling computer simulation Electromagnetic forces Lattices Neutrons Numerical simulation Physics Protons Quantum mechanics Supercomputers

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Hybrid task scheduling: Integrating static and dynamic heuristics 15

Hybrid task scheduling: Integrating static and dynamic heuri...

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15th symposium on computer architecture and high performance computing

作者： Boeres, C Lima, A Rebello, VEF Univ Fed Fluminense Inst Comp Niteroi RJ Brazil

ISBN: (纸本)0769520464

Researchers are constantly looking for ways to improve the execution time of parallel applications on distributed systems. Although compile-time static scheduling heuristics employ complex mechanisms, the quality of their schedules are handicapped by estimated run-time costs. On the other hand, while dynamic schedulers use actual run-time costs, they have to be of low complexity in order to reduce the scheduling overhead this paper investigates the viability of integrating these two approaches into a hybrid scheduling framework. the relationship between static schedulers, dynamic heuristics and scheduling events are examined the results show that a hybrid scheduler can indeed improve the schedules produced by good traditional static list scheduling algorithms.

关键词： Clustering algorithms Computational efficiency computer architecture Costs Distributed computing Dynamic scheduling Grid computing Processor scheduling Runtime Scheduling algorithm

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Power-efficient computing for Compute-intensive GPGPU Applications

Power-efficient Computing for Compute-intensive GPGPU Applic...

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19th IEEE International symposium on high performance computer architecture (HPCA)

作者： Gilani, Syed Zohaib Kim, Nam Sung Schulte, Michael J. Univ Wisconsin Madison WI 53706 USA

ISBN: (纸本)9781467355872

the peak compute performance of GPUs has been increased by integrating more compute resources and operating them at higher frequency. However, such approaches significantly increase power consumption of GPUs, limiting further performance increase due to the power constraint. Facing such a challenge, we propose three techniques to improve power efficiency and performance of GPUs in this paper. First, we observe that many GPGPU applications are integer-intensive. For such applications, we combine a pair of dependent integer instructions into a composite instruction that can be executed by an enhanced fused multiply-add unit. Second, we observe that computations for many instructions are duplicated across multiple threads. We dynamically detect such instructions and execute them in a separate scalar unit. Finally, we observe that 16 or fewer bits are sufficient for accurate representation of operands and results of many instructions. thus, we split the 32-bit datapath into two 16-bit datapath slices that can concurrently issue and execute up to two such instructions per cycle. All three proposed techniques can considerably increase utilization of compute resources, improving power efficiency and performance by 20% and 15%, respectively.

关键词： graphics processing units power aware computing

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Using content-addressable networks for load balancing in desktop grids 07

Using content-addressable networks for load balancing in des...

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16th International symposium on high performance Distributed computing 2007, HPDC'07 and Co-Located Workshops

作者： Kim, Jik-Soo Keleher, Peter Marsh, Michael Bhattacharjee, Bobby Sussman, Alan UMIACS Department of Computer Science University of Maryland College Park

ISBN: (纸本)1595936734

Desktop grids have evolved to combine Peer-to-Peer and Grid computing techniques to improve the robustness, reliability and scalability of job execution infrastructures. However, efficiently matching incoming jobs to available system resources and achieving good load balance in a fully decentralized and heterogeneous computing environment is a challenging problem. In this paper, we extend our prior work with a new decentralized algorithm for maintaining approximate global load information, and a job pushing mechanism that uses the global information to push jobs towards underutilized portions of the system. the resulting system more effectively balances load and improves overall system throughput. through a comparative analysis of experimental results across different system configurations and job profiles, performed via simulation, we show that our system can reliably execute Grid applications on a distributed set of resources both with low cost and with good load balance. Copyright 2007 ACM.

关键词： Distributed computer systems

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A high-performance Accelerator for Floating-Point Matrix Multiplication 15

A High-Performance Accelerator for Floating-Point Matrix Mul...

引用

15th IEEE International symposium on Parallel and Distributed Processing with Applications (ISPA) / 16th IEEE International Conference on Ubiquitous computing and Communications (IUCC)

作者： Jia, Xun Wu, Gunning Xie, Xianghui State Key Lab Math Engn & Adv Comp Wuxi 214125 Peoples R China

ISBN: (纸本)9781538637906

Matrix multiplication is a widely-used routine in science and engineering applications. Accelerating this routine is important, because applications with large-scale matrix multiplication are increasingly common, especially in the area of high-performance computing (HPC). However, existing computing platforms including CPU, GPGPU and FPGA suffer from unsatisfactory performance or efficiency for this routine. In this paper, we propose a high-performance accelerator for double-precision floating-point matrix multiplication, and build a performance model for design space exploration based on a memory access scheduling. Impact of architecture parameters on accelerator performance and efficiency are evaluated and analyzed. Experimental results show that our proposed accelerator with 256 processing elements (PEs) can achieve a maximum performance of 767.99 GFLOPS and an efficiency of 99.99% for large-scale matrix multiplication, which is well suited to the requirement of HPC applications.

关键词： matrix multiplication linear array accelerator high-performance architecture

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