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Transaction management in distributed scheduling environment for high performance database applications

5th international Woorkshop on distributed Computing (IWDC 2003)

作者： Goel, S Sharda, H Taniar, D Royal Melbourne Inst Technol Sch Elect & Comp Syst Engn Melbourne Vic Australia Monash Univ Sch Business Syst Clayton Vic 3168 Australia

ISBN: (纸本)3540207457

Synchronising the access of data has always been an issue in any data-centric application. The problem of synchronisation increases many folds, as the nature of application becomes distributed or volume of data approaches to terabyte sizes. Though high performance database systems like distributed and parallel database systems distribute data to different sites, most of the systems tend to nominate a single node to manage all relevant information about a resource and its lock. Thus transaction management becomes a daunting task for large databases in centralized scheduler environment. In this paper we propose a distributed scheduling strategy that uses a distributed lock table and compares the performance with centralized scheduler strategy. Performance evaluation clearly shows that multi-scheduler approach outperforms global lock table concept under heavy workload conditions.

关键词： Locks (fasteners)

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Proceedings of the international Conference on parallel Processing workshops

Proceedings of the International Conference on Parallel Proc...

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2003 international Conference on parallel Processing workshops, ICPPW 2003

ISBN: (纸本)0769520189

The proceedings contain 51 papers. The topics discussed include: an energy efficient data reaccess scheme for data broadcast in mobile computing environments;a hierarchical proxy architecture with load-based scheduling scheme to support network mobility;hierarchical protocol for broadcast-type group communication;a simple protocol for dominating set construction in mobile ad hoc networks;resource management schemes for Bluetooth scatternets;a Bluetooth group-scatternet formation algorithm for efficient routing;load balancing on pc clusters with the super-programming model;a dynamic load balancing scheme for IO-intensive applications in distributed systems;a scalable task duplication based algorithm for improving the schedulability of real-time heterogeneous multiprocessor systems;and scheduling directed a-cyclic task graphs on heterogeneous network of workstations to minimize schedule length.

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On Computation and resource management in Networked Embedded systems

On Computation and Resource Management in Networked Embedded...

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Proceedings of the Fifteenth IASTED international Conference on parallel and distributed Computing and systems

作者： Ghiasi, Soheil Nguyen, Karlene Bozorgzadeh, Elaheh Sarrafzadeh, Majid Computer Science Department University of California Los Angeles

ISBN: (纸本)088986392X

This paper presents the idea of managing the comprising computations of an application performed by an embedded networked system. An efficient algorithm for exploiting the timing slack of building blocks of the application is proposed. The slack of blocks can be utilized by replacing them with slower but cheaper, i.e. better, modules and by assigning the computations to the proper resources. Thus, our approach manages the comprising computations and system resources and can indirectly assist the realtime scheduling of computations on system resources. This is performed without compmmising the timing constraints of the application and can lead to significant improvements in power dissipation, computation accuracy or other metrics of the application domain. Our algorithm is well-suited for arbitrary tree computations. Moreover, it delivers solutions that are desirably close to the optimal solution. Experimental results for a number of object tracking applications implemented in an networked system with embedded computation resources, exhibit a significant amount of slack utilization.

关键词： Embedded systems

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GridBank: A Grid Accounting Services Architecture (GASA) for distributed systems sharing and integration

GridBank: A Grid Accounting Services Architecture (GASA) for...

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international parallel and distributed Processing Symposium, IPDPS 2003

作者： Barmouta, Alexander Buyya, Rajkumar Dept. of Computer Science and Software Engineering University of Western Australia NedlandsWA6009 Australia Lab Dept. of Computer Science and Software Engineering University of Melbourne Australia

ISBN: (纸本)0769519261

Computational Grids are emerging as a new infrastructure for Internet-based parallel and distributed computing. They enable the sharing, exchange, discovery, and aggregation of resources distributed across multiple administrative domains, organizations and enterprises. To accomplish this, Grids need infrastructure that supports various services: security, uniform access, resource management, scheduling, application composition, computational economy, and accounting. Although several initiatives are engaged in the development of Grid technologies, Grid accounting issues are yet to be addressed. To overcome this limitation, we propose a new infrastructure called GridBank that provides services for accounting. The support of computational economy and accounting services can lead to a self-regulated accountability in Grid computing. This paper presents requirements of Grid accounting and different economic models within which it can operate and proposes a Grid Accounting Services Architecture to meet them. The paper highlights implementation issues with a detailed discussion on the format for various records/databases that the GridBank needs to maintain. It also presents protocols for interaction between the GridBank and various components within Grid computing environments. © 2003 IEEE.

关键词： Grid computing

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distributed query processing on the grid

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international JOURNAL OF HIGH PERFORMANCE COMPUTING APPLICATIONS 2003年第4期17卷 353-367页

作者： Smith, J Gounaris, A Watson, P Paton, NW Fernandes, AAA Sakellariou, R Newcastle Univ Dept Comp Sci EPSRC Project High Performance Query Proc Grid Newcastle Upon Tyne NE1 7RU Tyne & Wear England Univ Manchester Dept Comp Sci Manchester M13 9PL Lancs England

distributed query processing (DQP) has been widely used in data intensive applications where data of relevance to users are stored at multiple locations. This paper argues: (i) that DQP can be important in the Grid, as a means of providing high-level, declarative languages for integrating data access and analysis;and (ii) that the Grid provides resource management facilities that are useful to developers of DQP systems. As well as discussing and illustrating how DQP technologies can be deployed within the Grid, the paper describes Polar*, a prototype implementation of a DQP system running over Globus. Polar* can handle complex data by adopting the ODMG object model and its query language OQL, which supports the invocation of user-defined operations. The Globus components are accessed through the MPICH-G interface rather than in a lower level way. A case study from bioinformatics is used throughout the paper, to show the benefits of the approach.

关键词： grid computing distributed query processing parallel query processing user-defined operation globus MPI ODMG

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5th international workshop on distributed Computing, IWDC 2003

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5th international workshop on distributed Computing, IWDC 2003

ISBN: (纸本)3540207457

The proceedings contain 37 papers. The special focus in this conference is on distributed Algorithms, Internetworking, Web, parallel and distributed systems. The topics include: Scalable group rekeying for secure multicast;a note on modalities for nonconjunctive global predicates;a synchronous self-stabilizing minimal domination protocol in an arbitrary network graph;decomposable algorithms for computing minimum spanning tree;clock synchronization algorithms and scheduling issues;estimating checkpointing, rollback and recovery overheads;analysis of BGP update surge during slammer worm attack;a scalable transition multicast scheme;transaction management in distributed scheduling environment for high performance database applications;a tool for the creation of interactive and dynamic grid testbed web portals;agent-based fair load distribution in Linux web server cluster;location management by movement prediction using mobility patterns and regional route maps;multi-path transmission algorithm for end-to-end seamless handover across heterogeneous wireless access networks;a three level architecture for next generation wireless networks;distributed certified e-mail system for mobile users;performance of a collaborative target detection scheme for wireless sensor networks;various distributed shortest path routing strategies for wireless ad hoc networks;towards privacy preserving distributed association rule mining;performance improvement of the contract net protocol using instance based learning;a hybrid model for optimising distributed data mining;tuning the quality parameters of a firewall to maximize net benefit;a token based distributed algorithm for medium access in an optical ring network and distributed connection control protocols in all-optical WDM networks.

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resource co-allocation for parallel tasks in computational grids

Resource co-allocation for parallel tasks in computational g...

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international workshop on Challenges of Large Applications in distributed Environments

作者： Lizhe Wang Wentong Cai Bu-Sung Lee Simon See Wei Jie School of Computer Engineering Nanyang Technological University Singapore Sun Microsystems Inc. Singapore Institute of High Performance Computing Singapore

ISBN: (纸本)0769519849

Tasks running in computational Grids may require multiple types of resources simultaneously. Thus, co-allocation of multiple types of resources is needed when scheduling tasks. Traditional list scheduling heuristics cannot address the problem of resource co-allocation in computational Grids. This paper presents models for computational Grids and parallel tasks running in computational Grids. Based on these models, a parallel task scheduling algorithm for resource co-allocation in computational Grids is proposed. The algorithm identifies the critical resource of parallel tasks and tries to schedule a task as early as possible when all the resources required by the task are available. Simulation results show that the algorithm can gain performance improvement, especially in the resource competitive computational Grid.

关键词： Concurrent computing Grid computing Processor scheduling scheduling algorithm Computational modeling High performance computing distributed computing Sun Performance gain resource management

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5th international workshop on Advanced parallel Processing Technologies, APPT 2003

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5th international workshop on Advanced parallel Processing Technologies, APPT 2003

ISBN: (纸本)3540200541

The proceedings contain 77 papers. The special focus in this conference is on Architecture, Software, Grid and Network. The topics include: Using split queues to improve the performance of parallel switch;a data driven loop engine on array processor;a new architecture of a fast floating-point multiplier;a highly efficient FC-san based on load stream;a new high-performance distributed shared i/o system;design and implementation of Fortran front end;an alternative superscalar architecture with integer execution units only;a high efficiency distributed mutual exclusion algorithm;the security architecture of the java operating system JX;simultaneous multithreading trace processors;a VLSI architecture design of 1-d dwt;overcoming static register pressure for software pipelining in the Itanium architecture;separating data storage, data computation, and resource management one from another in operating systems;a high performance design and implementation of the virtual interface architecture;optimization of asynchronous volume replication protocol;predicate analysis based on path information;new no-blocking permutation network;a task-oriented parallel computation model;a method of data assignment on heterogeneous disk system;orthogonal design method for optimal cache configuration;a probabilistically correct election protocol in asynchronous distributed systems;a formal specification and method for MAS as a distributed system;optimal fixed priority assignment with limited priority levels;a proof assistant for mobile processes and data space fusion based approach for effective alignment of computation and data.

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2nd international workshop on Self-Adaptive Software, IWSAS 2001

2nd International Workshop on Self-Adaptive Software, IWSAS ...

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2nd international workshop on Self-Adaptive Software, IWSAS 2001

ISBN: (纸本)3540007318

The proceedings contain 20 papers. The special focus in this conference is on Self-Adaptive Software. The topics include: Introduction to self-adaptive software;managing online self-adaptation in real-time environments;an approach to self-adaptive software based on supervisory control;constraint-guided self-adaptation;model-based adaptivity in real-time scheduling;adaptive agent based system for state estimation using dynamic multidimensional information sources;confidence from self-knowledge and domain knowledge;FDTS in self-adaptive protocol specification;frame-based self-adaptive test case selection;model-based diagnosis for information survivability;exercising qualitative control in autonomous adaptive survivable systems;dynamic change in workflow-based coordination of distributed services;a smart spell checker system implementation using adaptive software architecture;design principles for resource management systems for intelligent spaces;adaptivity in agent-based systems via interplay between action selection and norm selection;probabilistic dispatch, dynamic domain architecture, and self-adaptive software;a cybernetic perspective of self-adaptive software and results of the second international workshop on self-adaptive software.

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distributed query processing on the grid

Distributed query processing on the grid

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3rd international workshop on Grid Computing

关键词： grid computing distributed query processing parallel query processing user-defined operation globus MPI ODMG

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