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proceedings of the conference on High Performance computing on the Information Superhighway, HPC Asia'97 1997年 312-318页

作者： Nanri, Takeshi Sato, Hiroyuki Shimasaki, Masaaki Kyushu Univ Fukuoka Japan

On distributed shared memory (DSM) system, the optimization of memory access is very important for achieving good performance. In this paper we propose an optimizing compiler which controls a software cache system implemented on DSM. The software cache consists of static part related with compiler and dynamic part related with cache-managing runtime routines. Our compiler controls static part of the software cache by using information from static analysis. For applications whose behavior can only be dynamically determined, the compiler uses dynamic part of the software cache. We also propose application of RISC-oriented optimization techniques to parallel applications on our software cache system. We evaluate the efficiency of our compiler and RISC-oriented optimization techniques on distributed parallel machine, CM-5. Our results show that the compiler and the optimizations considerably improve the performance of basic linear algebra routines: matrix multiply, Cholesky decomposition and Gaussian elimination.

关键词： Program compilers

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Geostationary-satellite imagery applications on distributed, high-performance computing

Proceedings of the Conference on High Performance Computing ...

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proceedings of the conference on High Performance computing on the Information Superhighway, HPC Asia'97 1997年 50-55页

作者： Hawick, K.A. James, H.A. Maciunas, K.J. Vaughan, F.A. Wendelborn, A.L. Buchhorn, M. Rezny, M. Taylor, S.R. Wilson, M.D. Univ of Adelaide Adelaide

We discuss applications of high resolution geostationary satellite imagery and distributed high performance computing facilities for the storage, processing and delivery of satellite data products. We describe our system which is built on a distributed high performance computing environment using a number of software infrastructural building blocks and computational resources interconnected by an ATM-based broadband network. distributed High Performance computing hardware technology underpins our proposed system. In particular, we discuss the capabilities of a distributed hardware environment incorporating: high bandwidth communications networks such as Telstra's Experimental Broadband Network (EBN);large capacity hierarchical storage systems;and high performance parallel computing resources. We also describe a recent demonstration of our project resources to the remote-sensing user community.

关键词： Remote sensing

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SMTPS keynote: research and technology advances in systems aoftware for large scale computing systems 06

SMTPS keynote: research and technology advances in systems a...

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proceedings of the 20th international conference on parallel and distributed processing

作者： Frederica Darema NSF CISE Arlington VA

No abstract available.

ISBN: (纸本)9781424400546

No abstract available.

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Panel: Challenge and opportunity of HPC-based distributed systems

Panel: Challenge and opportunity of HPC-based distributed sy...

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International conference on parallel and distributed Systems (ICPADS)

Summary form only given, as follows. While digital device and digital information become immersive, internet computing as a discipline is at a turning point. Modern computing and communication systems are unprecedented powerful and, in the meantime, unprecedented complex. On one hand, new computing paradigms, such as cloud computing, internet of things, cyberinfrastructure, and data centric computing, continue emerging to utilize technological advances. On the other hand, timely challenges, such as reliability, security, power consumption, and coordination and consistency, have to be addressed to meet the ever increasing user demand. High performance computing (HPC) is moving from Peta-flops era to Exa-scale era. How the changing will influence data center based distributed computing, and vice visa. We are at a historical point to ask: what are the challenges and opportunities of HPC-based distributed systems? This is especially true for Far East, where China just historically reached the first place on the HPC top500 list and launched a unique program in Internet of Things. This panel invites outstanding leaders around the world to explore deliberations regarding the strategic value of HPC-based distributed systems and discuss disruptive technologies and innovations most likely to overturn today’s internet computing landscape. A record of the panel discussion was not made available for publication as part of the conference proceedings.

关键词： Internet of Things Turning Cloud computing Reliability Security Power demand

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A concurrency control protocol for parallel B-tree structures without latch-coupling for explosively growing digital content 08

A concurrency control protocol for parallel B-tree structure...

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11th International conference on Extending Database Technology, EDBT 2008

作者： Yoshihara, Tomohiro Kobayashi, Dai Yokota, Haruo Department of Computer Science Tokyo Institute of Technology 2-12-1 Ookayama Meguro-ku Tokyo 152-8552 Japan Global Scientific Information and Computing Center Tokyo Institute of Technology 2-12-1 Ookayama Meguro-ku Tokyo 152-8550 Japan Systems Development Laboratory Hitachi Ltd. JSPS

ISBN: (纸本)9781595939265

While shared-nothing parallel infrastructures provide fast processing of explosively growing digital content, managing data efficiently across multiple nodes is important. The value-range partitioning method with parallel B-tree structures in a shared-nothing environment is an efficient approach for handling large amounts of data. To handle large amounts of data, it is also important to provide an efficient concurrency control protocol for the parallel B-tree. Many studies have proposed concurrency control protocols for B-trees, which use latch-coupling. None of these studies has considered that latch-coupling contains a performance bottleneck of sending of messages between processing elements (PEs) in distributed environments because latch-coupling is efficient for a B-tree on a single machine. The only protocol without latch-coupling is the B-link algorithm, but it is difficult to use the B-link algorithm directly on an entire parallel B-tree structure because it is necessary to guarantee the consistency of the side pointers. We propose a new concurrency control protocol named LCFB that requires no latch-coupling in optimistic processes. LCFB reduces the amount of communication between PEs during a B-tree traversal. To detect access path errors in the LCFB protocol caused by removal of latch-coupling, we assign boundary values to each index page. Because a page split may cause page deletion in a Fat-Btree, we also propose an effective method for handling page deletions without latch-coupling. We then combine LCFB with the B-link algorithm within each PE to reduce the cost of Structure Modification Operations (SMOs) in a PE, as a solution to the difficulty of consistency management for the side pointers in a parallel B-tree structure. To compare the performance of the proposed protocol with conventional protocols MARK-OPT, INC-OPT, and ARIES/IM, we implemented them on an autonomous disk system with a Fat-Btree structure. Experimental results in various environments

关键词： Network protocols

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14th International conference on Dependability of Computer Systems, DepCoS-RELCOMEX 2019

14th International Conference on Dependability of Computer S...

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14th International conference on Dependability of Computer Systems, DepCoS-RELCOMEX 2019

ISBN: (纸本)9783030195007

The proceedings contain 54 papers. The special focus in this conference is on Dependability of Computer Systems. The topics include: Numerical Analysis of the Building Materials Electrical Properties Influence on the Electric Field Intensity;Framework to Verify distributed IoT Solutions for Traffic Analysis in ATN Stations;the Picking Process Model in e-Commerce Industry;evaluation of Design Pattern Utilization and Software Metrics in C# Programs;scheduling Tasks in a System with a Higher Level of Dependability;Comparison of parallel and Non-parallel Approaches in Algorithms for CAD of Complex Systems with Higher Degree of Dependability;Examples of Applications of CAD Methods in the Design of Fault Tolerant Systems;The Concept of the ALMM Solver Knowledge Base Retrieval Using Protégé Environment;graph-Based Vehicle Traffic Modelling for More Efficient Road Lighting;a Fuzzy Approach for Evaluation of Reconfiguration Actions After Unwanted Events in the Railway System;A Comparative Study of Statistical and Neural Network Models for PLC Network Traffic Anomaly Detection;on Some Computational and Security Aspects of the Blom Scheme;registration and Analysis of a Pilot’s Attention Using a Mobile Eyetracking System;minimization Problem Subject to Constraint of Availability in Semi-Markov Reliability Models;method for Railway Timetable Evaluation in Terms of Random Infrastructure Load;representing Process Characteristics to Increase Confidence in Assurance Case Arguments;dependability of Multichannel Communication System with Maintenance Operations for Air Traffic Management;modelling and Safety Assessment of Programmable Platform Based Information and Control Systems Considering Hidden Physical and Design Faults;multi-clustering Used as Neighbourhood Identification Strategy in Recommender Systems.

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2nd International conference on Computer and Communication Technologies, IC3T 2015

2nd International Conference on Computer and Communication T...

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2nd International conference on Computer and Communication Technologies, IC3T 2015

ISBN: (纸本)9788132225164

The proceedings contain 76 papers. The special focus in this conference is on Computer and Communication Technologies. The topics include: Medical image fusion in curvelet domain employing PCA and maximum selection rule;gigabit network intrusion detection system using extended bloom filter in reconfigurable hardware;hash-based rule mining algorithm in data-intensive homogeneous cloud environment;privacy preservation in distributed environment using RSA-CRT;segmentation of the human corpus callosum variability from t1 weighted MRI of brain;analysis of molecular single-electron transistors using silicene, graphene and germanene;identification of the plants based on leaf shape descriptors;a comparative analysis of different social network parameters derived from Facebook profiles;a fast and hardware-efficient visual cryptography scheme for images;energy-efficient modified bellman ford algorithm for grid and random network topologies;a novel approach for speaker recognition by using wavelet analysis and support vector machines;high speed network intrusion detection system using FPGA;a novel action descriptor to recognize actions from surveillance videos;protecting the augmented browser extension from mutation cross-site scripting;large-scale data management system using data de-duplication system;connectivity model for molecular communication-based nanomachines network in normal and sub-diffusive regimes;performance improvement of read operations in distributed file system through anticipated parallel processing;a novel multi-view similarity for clustering spatio-temporal data and performance evaluation of free space optical link under various weather conditions.

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parallel and distributed simulation 14

Parallel and distributed simulation

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Simulation Winter conference

作者： Richard M. Fujimoto School of Computational Science and Engineering Georgia Institute of Technology 266 Ferst Drive Atlanta USA

Driven by the widespread availability of commercial multiprocessor systems and advances in computer networking, the parallel and distributed simulation field emerged and flourished in the late 1970s and 1980s. The field has evolved since that time to address critical issues such as synchronization and interoperability, and remains an active area of research to this day. Many impressive successes have been reported to date. Today, new platforms ranging from massively parallel, heterogeneous supercomputers and cloud computing environments as well as broader technology trends such as big data and the Internet of Things present new challenges and opportunities. This presentation will review work in the parallel and distributed simulation field from seminal research in the 1970s and 80s to important successes that illustrate the potential offered by this technology. Key impediments that have prevented the technology from achieving more widespread adoption by the general modeling and simulation community are discussed as well as important challenges that remain in exploiting new and emerging computing platforms and technology trends.

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9th International conference on Modeling Techniques and Tools for Computer Performance Evaluation, 1997

9th International Conference on Modeling Techniques and Tool...

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9th International conferences on Modeling Techniques and Tools for Computer Performance Evaluation, 1997

ISBN: (纸本)9783540631019

The proceedings contain 18 papers. The special focus in this conference is on Modeling Techniques and Tools for Computer Performance Evaluation. The topics include: A performability modeling environment tool;dependability evaluation and the optimization of performability;design and implementation of a network computing platform using JAVA;storage alternatives for large structured state spaces;an efficient disk-based tool for solving very large markov models;efficient transient overload tests for real-time systems;towards an analytical tool for performance modeling of ATM networks by decomposition;an embedded network simulator to support network protocols’ development;synchronized two-way voice simulation for internet phone performance analysis and evaluation;processes as language-oriented building blocks of stochastic petri nets;measurement tools and modeling techniques for evaluating WEB server performance;workload characterization of input/output intensive parallel applications;interval based workload characterization for distributed systems;bounding the loss rates in a multistage ATM switch;simple bounds for queues fed by markovian sources and on queue length moments in fork and join queuing networks with general service times.

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Communication cost estimation and global data partitioning for distributed memory machines

Communication cost estimation and global data partitioning f...

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International conference on High Performance computing

作者： S.R. Prakash Y.N. Srikant Department of Computer Science & Automation Indian Institute of Science Bangalore India

Estimating communication cost involved in executing a program on distributed memory machines is important for evaluating the overheads due to repartitioning. The authors present a scheme which will work with reasonable efficiency for arrays with at most 3 dimensions. The hyperplane partitioning technique given by Prakash and Srikant (1997) is extended to complete programs by estimating the communication cost by the scheme presented in the work.

关键词： Costs parallel machines Permission Equations Computer science Automation Advertising USA Councils Telephony Degradation

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