Filters








63,648 Hits in 3.4 sec

Mapping Workflows on Grid Resources: Experiments with the Montage Workflow [chapter]

Rizos Sakellariou, Henan Zhao, Ewa Deelman
2010 Grids, P2P and Services Computing  
Scientific workflows have received considerable attention in Grid computing.  ...  This paper is concerned with the issue of scheduling scientific workflows and, by considering a commonly used astronomy workflow, Montage, investigates the impact of different strategies to schedule the  ...  grid.  ... 
doi:10.1007/978-1-4419-6794-7_10 dblp:conf/europar/SakellariouZD09 fatcat:bwzy2ia7cvdlrnqmt453h2xliq

Performance metrics and ontologies for Grid workflows

Hong-Linh Truong, Schahram Dustdar, Thomas Fahringer
2007 Future generations computer systems  
Moreover, given the complexity of both Grid systems and workflows, semantics of essential performance-related concepts and relationships, and associated performance data in Grid workflows should be well  ...  Many Grid workflow middleware services require knowledge about the performance behavior of Grid applications/services in order to effectively select, compose, and execute workflows in dynamic and complex  ...  We thank Peter Brunner for his help in collecting workflow monitoring data. The work described in this paper is partially supported by the European Union through the IST-2002-511385 K-WfGrid project.  ... 
doi:10.1016/j.future.2007.01.003 fatcat:deai7yt26zfzbibcrgzqij5rya

Specification of grid workflow applications with AGWL: an Abstract Grid Workflow Language

T. Fahringer, J. Qin, S. Hainzer
2005 CCGrid 2005. IEEE International Symposium on Cluster Computing and the Grid, 2005.  
In this paper, we present an Abstract Grid Workflow Language (AGWL) for describing Grid workflow applications at a high level of abstraction.  ...  A rich set of constructs (compound activities) is provided to simplify the specification of Grid workflow applications which includes compound activities such as if, forEach and while loops as well as  ...  Grid workflow applications are emerging as one of the most important and challenging Grid application classes.  ... 
doi:10.1109/ccgrid.2005.1558629 dblp:conf/ccgrid/FahringerQH05 fatcat:fobgqev4mresxch2vylzqbcvxm

Artificial intelligence and grids: workflow planning and beyond

Y. Gil, E. Deelman, J. Blythe, C. Kesselman, H. Tangmunarunkit
2004 IEEE Intelligent Systems  
We describe Pegasus, a system to generate executable grid workflows given a high-level specification of desired results.  ...  Pegasus uses Artificial Intelligence planning techniques to compose valid end-to-end workflows, and has been used in several scientific applications.  ...  This research was supported in part by the National Science Foundation under grants ITR-0086044 (GriPhyN) and EAR-0122464 (SCEC/ITR), and in part by an internal grant from the Information Sciences Institute  ... 
doi:10.1109/mis.2004.1265882 fatcat:p6ekxvjr2jcg7cenoi2gl6652q

A Grid workflow infrastructure

Dieter Cybok
2006 Concurrency and Computation  
Steven Newhouse and Dr. Anthony Mayer  ...  choosing orchestration/BPEL4WS: -Definition of end-to-end processes -Existing Grid services can be used -Central workflow engine • GWEL: -XML based -Elements and concepts of BPEL4WS are reused A Grid  ...  -Compensating transactions -Managing exceptions • Additional grid workflow requirements: -Dealing with large amounts of data -We have considered both, BPEL4WS and WSCI as the base for GWEL • Reasons for  ... 
doi:10.1002/cpe.998 fatcat:gkrzdeedb5ewzdyhsrhtqmku7y

Workflows in Computation Grids

Dominik Kuropka, Gottfried Vossen, Mathias Weske
2006 2006 Fifth International Conference on Grid and Cooperative Computing Workshops  
Since flexibility concepts for workflows have been elaborated extensively in conventional business-oriented domains, we show how to reuse and adapt them for workflow management in computation grids.  ...  in computing grids.  ...  Figure 1 : 1 Workflow Management and the Grid.  ... 
doi:10.1109/gccw.2006.101 dblp:conf/gcc/KuropkaVW06 fatcat:354lq2vpenh7xm6qud5z2kxy7i

Petri net based Grid workflow verification and optimization

Haijun Cao, Hai Jin, Song Wu, Shadi Ibrahim
2011 Journal of Supercomputing  
In addition, we present our Grid workflow analysis approaches on three aspects: workflow reachability verification, workflow deadlock verification, and workflow optimization.  ...  In this paper, based on Petri net, we propose a service composition oriented Grid workflow model and its related six elementary workflow patterns: sequence, condition, iteration, concurrency, synchronization  ...  Suppose place p 1 is the source (the input of Grid workflow) place and p m is the sink (the output of Grid workflow) place.  ... 
doi:10.1007/s11227-011-0668-3 fatcat:47nscgy6efdrjhp7xh6hvx2kf4

A taxonomy of grid workflow verification and validation

Jinjun Chen, Yun Yang
2008 Concurrency and Computation  
To ensure the correctness of grid workflow specification and execution, grid workflow verification and validation must be conducted.  ...  As such, in this paper, we analyse the grid workflow verification and validation and present a taxonomy.  ...  Figure 1 . 1 Correctness of grid workflow specification and execution vs grid workflow verification and validation , grid workflow verification taxonomy consists of six elements: (a) structure verification  ... 
doi:10.1002/cpe.1220 fatcat:e3mgph2fkjgdlf3snqskb4wkzy

Cooperative and decentralized workflow scheduling in global grids

Mustafizur Rahman, Rajiv Ranjan, Rajkumar Buyya
2010 Future generations computer systems  
To overcome these problems, this paper proposes a novel approach for decentralized and cooperative workflow scheduling in a dynamic and distributed Grid resource sharing environment.  ...  Existing Grid scheduling systems, such as e-Science workflow brokers operate in tandem but lack the notion of cooperation mechanism that can lead to efficient application schedules across distributed resources  ...  System models Grid model The proposed workflow scheduling algorithm utilizes the Grid-Federation [23] model with regard to resource organization and Grid networking.  ... 
doi:10.1016/j.future.2009.07.002 fatcat:5d4hx5tayjd65ndgb6kgsassa4

Real-World Workflow Support in the ASKALON Grid Environment [chapter]

Radu Prodan, Thomas Fahringer, Farrukh Nadeem, Marek Wieczorek
2008 Grid Middleware and Services  
We describe techniques for performance prediction, scheduling, advance reservation, and scalability analysis and illustrate a variety of experimental results that validate each of our technique.  ...  We present the approach taken by the ASKALON project to support various runtime phases of a real world hydrological application in the Austrian Grid environment.  ...  Finally, an enactment engine service executes the workflow on the Grid according to the given schedule and investigates the most severe sources of performance overheads and the scalability of the execution  ... 
doi:10.1007/978-0-387-78446-5_17 fatcat:ancmsx4t75a5jdpg3gihcpexle

Wildfire: distributed, Grid-enabled workflow construction and execution

Francis Tang, Ching Lian Chua, Liang-Yoong Ho, Yun Ping Lim, Praveen Issac, Arun Krishnan
2005 BMC Bioinformatics  
We observe two trends in bioinformatics: (i) analyses are increasing in complexity, often requiring several applications to be run as a workflow; and (ii) multiple CPU clusters and Grids are available  ...  For execution, Wildfire uses GEL, the underlying workflow execution engine, which can exploit available parallelism on multiple CPU machines including Beowulf-class clusters and Grids.  ...  Acknowledgements The authors would like to thank Tan Chee Meng and Prof.  ... 
doi:10.1186/1471-2105-6-69 pmid:15788106 pmcid:PMC1274263 fatcat:77sz4qxmibdvzkhqokoibutmqe

Cost-Aware Grid Workflow Resource Allocation

Pengcheng Xiong, Yushun Fan
2007 Third International Conference on Semantics, Knowledge and Grid (SKG 2007)  
Semantics have become acceptable techniques for data integration, data interoperability and data visualization in many software engineering domains and web developments over the past few years.  ...  Illustrating with an application from the dairy industry, we describe the design architecture and theory, and argue its generic capability to application in other problem domains.  ...  concepts; and (2) having the explicit goal of reuse and sharing knowledge by defining a common framework and vocabulary.  ... 
doi:10.1109/skg.2007.98 dblp:conf/skg/XiongF07 fatcat:bk2vxv42yzcabkhlcaryauy2rq

Scientific Workflows in the Cloud [chapter]

Gideon Juve, Ewa Deelman
2011 Grids, Clouds and Virtualization  
and how they enable new features for workflow applications.  ...  We describe how clouds can be configured to execute workflow tasks, and present a case study that examines the performance and cost of three typical workflow applications on Amazon EC2.  ...  They support all of the same techniques for workflow management and execution that have been developed for clusters and grids.  ... 
doi:10.1007/978-0-85729-049-6_4 fatcat:423wdzax3jejtljpzjhcwhi27i

Deadline/Budget-Based Scheduling of Workflows on Utility Grids [chapter]

Jia Yu, Kotagiri Ramamohanarao, Rajkumar Buyya
2009 Market-Oriented Grid and Utility Computing  
Therefore, while scheduling workflows on utility Grids, service price must be considered while optimizing the execution performance.  ...  Two different workflow structures and experiment settings are also presented for evaluation of the proposed scheduling heuristics.  ...  GRID WORKFLOW MANAGEMENT SYSTEM Scientific communities such as high-energy physics, gravitational-wave physics, geophysics, astronomy, and bioinformatics, are utilizing Grids to share, manage, and process  ... 
doi:10.1002/9780470455432.ch19 fatcat:72vnejkn2bgddiebkqlqif6g7a

Control-path Oriented Workflow Intelligence Analysis on EnterprizeWorkflow Grids

Kwang-Hoon Kim
2005 2005 First International Conference on Semantics, Knowledge and Grid  
Keywords: workflow intelligence and quality, workflow control-path analysis and rediscovery, workflow traceability, workflow knowledge analysis, workflow mining and rediscoverability  ...  of the workflow traceability and rediscoverability.  ...  His research interests include groupware, workflow systems, BPM, CSCW, collaboration theory, Grid/ P2P distributed systems, data warehousing and mining, software architecture modeling and simulation, e-commerce  ... 
doi:10.1109/skg.2005.58 dblp:conf/skg/Kim05a fatcat:ofj35ypl6fd2tdsyrldftvvpdy
« Previous Showing results 1 — 15 out of 63,648 results