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4th international conference on Networking and distributed computing (ICNDC)

作者： Cao, Junwei Yang, Mingbo Tsinghua Univ Tsinghua Natl Lab Informat Sci & Technol Res Inst Informat Technol Beijing 100084 Peoples R China

ISBN: (纸本)9781479930463

Price rising of energy and the limitation of fossil fuel makes it an inevitable tendency to introduce distributed energy such as renewable energy to the existing supply system in the future. Different players, such as power generation, transmission, and distribution, along with the value chain must now cooperate and interact with each other by shared interfaces or eventually a customized network for secure and reliable delivery of energy. While smart grids are focusing on the informationization and intellectualization of the existing power grid, the new concept of an energy internet is proposed as an internet-style solution for energy issues by integrating information and power flows bi-directionally, which can be considered as the version 2.0 of smart grids. Some key features of an energy internet compared with conventional energy grid such as openness and peer-to-peer are introduced. Architecture of an energy internet is proposed in details, including energy storage, switches and routers. The definition of an energy internet call for a much greater degree of interactive flexibility for efficient energy management than the present system is designed to handle.

关键词： energy internet smart grid energy router distributed generation

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Resource Allocation with Supply Adjustment in distributed computing Systems

Resource Allocation with Supply Adjustment in Distributed Co...

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international conference on distributed computing Systems (ICDCS 2010)

作者： Danak, Amir Mannor, Shie McGill Univ Dept Elect & Comp Eng Montreal PQ Canada

ISBN: (纸本)9780769540597

We present two resource-allocation mechanisms for on-demand computing services in parallel and distributed systems, where users pay for their actual usage of the computational resources. We specialize our solution for allocation of grid resources which is a challenging issue due to the dynamic behavior of the system. The problem is studied from the seller's point of view and adjustment of the market capacity is proposed as his strategic move to maximize his profit from resource sharing.

关键词： Resource allocation

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Dynamic task scheduling of the grid workflow

Dynamic task scheduling of the grid workflow

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2nd international conference on Embedded Software and Systems

作者： Gao, LW Yao, YW S China Univ Technol Inst Comp Sci Guangzhou 510640 Peoples R China

ISBN: (纸本)0769525121

The technique of grid, becomes the focus of the research gradually. As the workflow in grid environment, grid workflow has some characteristics itself so that it can't inherit traditional workflow straightly. Hence, in this article, we will put forward a new task scheduling algorithm for the grid workflow. By carrying out the distributed booking and assigning of the resource, computing the time of implement intelligently, and building the scheduling sequence dynamically, it achieves the optimization of the scheduling in view of the whole grid system.

关键词： grid computing resource allocation scheduling distributed booking dynamic task scheduling grid environment grid workflow resource assignment

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A distributed Abstract State Machine for grid Systems: A Preliminary Study

A Distributed Abstract State Machine for Grid Systems: A Pre...

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2nd international conference on Parallel, distributed, grid and Cloud computing for Engineering

作者： Bianchi, A. Manelli, L. Pizzutilo, S. Univ Bari Dept Informat Aldo Moro Italy

ISBN: (纸本)9781905088423

grid systems technology has evolved over recent years and the Open grid Service Architecture (OGSA) has rapidly become the "de facto" standard. OGSA includes several important capabilities needed to support grid applications and, among them, the job management and execution capability, which concern searching candidate locations and executing and managing jobs until end. Such functionalities enable users to use distributed resources for their applications. These tasks are critical in the grid system context because their incorrect execution can heavily affect provided services, so adoption of formal method is sometimes mandatory. This paper is aimed at defining an abstract model for specifying the job management and execution services. We propose a distributed Abstract State Machine (DASM) model to analyse and design OGSA capability and its implementation in coreASM.

关键词： grid technology open grid service architecture distributed systems distributed abstract state machine web services formal models

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Scientific workflow scheduling in computational grids - Planning, reservation, and data/network-awareness 07

Scientific workflow scheduling in computational grids - Plan...

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8th IEEE/ACM international conference on grid computing

作者： Yan, Yonghong Chapman, Barbara Univ Houston Dept Comp Sci Houston TX 77204 USA

ISBN: (纸本)9781424415595

A very important issue in executing a scientific workflow in computational grids is how to map and schedule workflow tasks onto multiple distributed resources and handle task dependencies in a timely manner to deliver users' expected performance. In this paper, we present our work to develop and evaluate an advanced workflow scheduler in computational grid environments, the GRACCE scheduler. The GRACCE scheduler applies advanced scheduling techniques, such as resource negotiation and reservation, data/network-aware scheduling and performance prediction in the resource allocation and execution planning process. To evaluate the scheduler, we have set up an experimental environment that models a computational grid in those aspects relevant to workflow scheduling. Our results show the average performance improvement, using the GRACCE scheduler, is about 20% under high resource loads.

关键词： Processor scheduling Computer networks grid computing Resource management distributed computing Scheduling algorithm Process planning Computational modeling Computer science Engines

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Dynamic security perimeters for inter-enterprise service integration

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FUTURE GENERATION COMPUTER SYSTEMS-THE international JOURNAL OF grid computing THEORY METHODS AND APPLICATIONS 2007年第4期23卷 633-657页

作者： Djordjevic, I. Dimitrakos, T. Romano, N. Mac Randal, D. Ritrovato, P. British Telecommun PLC Secur Res Ctr Ipswich IP5 3RE Suffolk England Univ Salerno CRMPA DIIMA I-84084 Fisciano Italy Rutherford Appleton Lab CCLRC Didcot OX11 0QX Oxon England

Levaraeine the convergence of grid and Web services technologies, we anticipate the emergence of new business and scientific computing paradigms that are based on dynamic Virtual Organisations (VO). These VOs span across organisational boundaries and enable the enactment of collaborative processes that integrate services, resources and knowledge in order to perform tasks that the VO partners could not undertake on their own. Such a dynamic and complex structure opens several challenging problems relating to VO security. In this paper, We summarise a novel architecture Supporting grid-enabled collaboration for the purposes of Application Service Provision. We then focus on the underpinning security architecture that enables the federated management and distributed enforcement of dynamic security perimeters for virtual communities of services, and on resources that span across administrative and enterprise boundaries. We highlight how this architecture, realised in the context of a European research project developing a grid platform for application serviced provision, addresses the outstanding challenges that underlie the automation of trust and security management in scalable, multi-institutional, and dynamic Virtual Organisations. (c) 2006 Elsevier B.V. All rights reserved.

关键词： access control application service provision (ASP) distributed systems grid computing information security virtual organisations Web services

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distributed Multidimensional Data Indexing Strategy in Cloud computing Environment 6

Distributed Multidimensional Data Indexing Strategy in Cloud...

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6th international conference on Smart grid and Electrical Automation (ICSGEA)

作者： He Dinghua Wuhan Polytech Dept Comp Wuhan 430074 Peoples R China

ISBN: (纸本)9781665432634

distributed multidimensional data index is an important tool to realize massive data retrieval task. However, traditional data index ignores the influence of distributed data offset on index structure, which results in the large number of index iterations and long retrieval time. The distributed multi-dimensional data index strategy in cloud computing environment is studied. In the cloud computing environment, parallel processing of offset distributed data;through differentiation of different data dimensions, the establishment of distributed multidimensional data index structure;the construction of node selection cost detection model, through adjusting the local node selection location, optimizing index retrieval structure, to achieve the distributed multidimensional data retrieval task. Experimental results: the number of iterations of the index is 251 times and 278 times lower than the two groups of traditional indexes, and the retrieval time is 6.91s and 6.8034s lower than the two traditional indexes. It can be seen that the index strategy in cloud computing environment has better data retrieval performance.

关键词： Cloud computing Environment distributed Multidimensional Data Index Strategy Retrieval Time Consuming

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A Qualitative Comparison of Popular Middleware Distributions used in grid computing Environment 2

A Qualitative Comparison of Popular Middleware Distributions...

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2nd international conference on Computer and Communication Systems (ICCCS)

作者： Nawaz, Rab Zhou, WuYang Shahid, Muhammad Usman Khalid, Osman Univ Sci & Technol China Sch Informat Sci & Technol Hefei Anhui Peoples R China COMSATS Inst Informat Technol Dept Comp Sci Abbottabad Pakistan

ISBN: (纸本)9781538605394

The advancement in the fields of science, engineering, social networking and e-commerce along with the tremendous growth in the pervasive technologies has generated a tsunami of data in digital form. To store and process this type of data is a big challenge for the researcher. Different distributed computing and processing systems have been developed to overcome these real world data computational and storage problems. For such computational intensive applications, cloud or grid computing can be seen as a special type of distributed computing platform. One of the main layer used in grid computing environment is middleware, that divides the user job and distribute it among several available computing resources for processing and then do the result aggregation task. In this paper we have surveyed the existing popular middleware software libraries used in grid computing environment and presented a qualitative comparison of these systems w.r.t resource management.

关键词： grid computing grid middleware condor legion punch resource management european data grid datagrid grid engine glite and openlava etc

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The Application of distributed computing By Webgis To The RS Image

The Application of Distributed Computing By Webgis To The RS...

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2nd international conference on Environmental and Computer Science

作者： Kuang, Mingsheng Kuang, Honghai Southwest Univ Sch Geog Sci Chongqing 400715 Peoples R China

ISBN: (纸本)9780769539379

The application of distributed computing by WebGIS to the is image had been studied in the paper. A server of WebGIS was set up. A RS image was divided into grids. There was a computer in each grid. distributed computing of GIS datas was dealed with by computer node in each grid. The available information was submitted to the server of WebGIS. So we can draw a conclusion that we can enhance efficiency of GIS datas in RS images by the application of distributed computing.

关键词： WebGIS RS Image Distribute

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Fair Scheduling Approach For Load Balancing and Fault Tolerant in grid Environment

Fair Scheduling Approach For Load Balancing and Fault Tolera...

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IEEE international conference on Emerging Trends in computing, Communication and Nanotechnology (ICECCN)

作者： Karthikumar, S. K. Preethi, M. Udhaya Chitra, P. KLN Coll Informat Technol Dept Informat Technol Pottapalayam 630611 India Thiagarajar Coll Engn Dept Comp Sci & Engn Madurai Tamil Nadu India

ISBN: (纸本)9781467350372;9781467350365;9781467350358

grid computing is becoming an important technology in distributed environment. The Main issues consider in grid computing is Load balancing, Fault tolerance and Fault recovery. This paper Focuses on Load balancing and Fault tolerance. Load balancing is an important technique by maintaining the workload properly in the sites. This article designs a grid Scheduler, which selects the Minimum Loaded Site for the candidate set of nearest sites, Execute the job within the grid. Then the job is dispatched to the Fault Detector based on the availability of the site. The load balancing task in the grid environment will significantly improve the performance of the grid environment. Fault tolerance is a main technique in grid environment. This technique will used to execute the job from the processor failure. To achieve high throughput and resource utilization we propose a Fair scheduling algorithm. Trails for the proposed system are conducted using grid Simulation Toolkit (gridSim).

关键词： distributed System Fault tolerance grid computing gridSim Load balancing Scheduling

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