2009 Fifth IEEE International Conference on e-Science最新文献_第5页

Towards a Mobile Workbench for Researchers 面向研究人员的移动工作台

2009 Fifth IEEE International Conference on e-Science Pub Date : 2009-12-09 DOI: 10.1109/e-Science.2009.26

Andreas V. Hense, Florian Quadt, Matthias Römer

引用次数: 2

Robust Asynchronous Optimization for Volunteer Computing Grids 志愿计算网格的鲁棒异步优化

2009 Fifth IEEE International Conference on e-Science Pub Date : 2009-12-09 DOI: 10.1109/E-SCIENCE.2009.44

Travis Desell, M. Magdon-Ismail, B. Szymanski, Carlos A. Varela, H. Newberg, N. Cole

{"title":"Robust Asynchronous Optimization for Volunteer Computing Grids","authors":"Travis Desell, M. Magdon-Ismail, B. Szymanski, Carlos A. Varela, H. Newberg, N. Cole","doi":"10.1109/E-SCIENCE.2009.44","DOIUrl":"https://doi.org/10.1109/E-SCIENCE.2009.44","url":null,"abstract":"Volunteer computing grids offer significant computing power at relatively low cost to researchers, while at the same time generating public interest in different scientific projects. However, in order to be used effectively, their heterogeneity, volatility and restrictive computing models must be overcome. As these computing grids are open, incorrect or malicious results must also be handled. This paper examines extending the BOINC volunteer computing framework to allow for asynchronous global optimization as applied to scientific computing problems. The asynchronous optimization method used is resilient to faults and the heterogeneous nature of volunteer computing grids, while allowing scalability to tens of thousands of hosts. A work verification strategy that does not require the validation of every result is presented. This is shown to be able to effectively reduce the need for verification done to less than 30% of the reported results, without degrading the performance of the asynchronous search methods. An asynchronous version of particle swarm optimization (APSO) is presented and com- pared to previously used asynchronous genetic search (AGS) using the MilkyWay@Home BOINC computing project. Both search methods are shown to scale to MilkyWay@Home’s current user base, over 75,000 heterogeneous and volatile hosts, something not possible for traditional optimization methods. APSO is shown to provide faster convergence to optimal results while being less sensitive to its search parameters. The verification strategy presented is shown to be effective for both AGS and APSO.","PeriodicalId":325840,"journal":{"name":"2009 Fifth IEEE International Conference on e-Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132233464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15

Stream Monitoring in Large-Scale Distributed Concealed Environments 大规模分布式隐蔽环境中的流监测

2009 Fifth IEEE International Conference on e-Science Pub Date : 2009-12-09 DOI: 10.1109/e-Science.2009.30

M. Lassnig, T. Fahringer, V. Garonne, A. Molfetas, M. Branco

引用次数: 6

Comparing METS and OAI-ORE for Encapsulating Scientific Data Products: A Protein Crystallography Case Study 比较METS和OAI-ORE封装科学数据产品:蛋白质晶体学案例研究

2009 Fifth IEEE International Conference on e-Science Pub Date : 2009-12-09 DOI: 10.1109/e-Science.2009.29

C. Brooking, S. R. Shouldice, Gautier Robin, B. Kobe, Jennifer L. Martin, J. Hunter

{"title":"Comparing METS and OAI-ORE for Encapsulating Scientific Data Products: A Protein Crystallography Case Study","authors":"C. Brooking, S. R. Shouldice, Gautier Robin, B. Kobe, Jennifer L. Martin, J. Hunter","doi":"10.1109/e-Science.2009.29","DOIUrl":"https://doi.org/10.1109/e-Science.2009.29","url":null,"abstract":"This paper describes the set of eResearch services developed by the eResearch Lab within the University of Queensland (UQ) for the Structural Genomics (SG) Group at UQ. The aim of these services is to enable collaborative teams of protein crystallographers in the SG group to track their experiments and to manage the plethora and diversity of data that they generate through distributed high-throughput approaches and complex scientific workflows. More specifically we describe: the secure Web-based laboratory information management system (TIMTAM) and the X-ray diffraction image archive (DIMER) used to monitor experiments and record data captured prior to structure determination and the publication of a new crystal structure in public repositories such as the Protein Data bank (PDB). We also describe the services that we have developed to relate the different products generated at each stage in the protein crystallography pipeline through OAI-ORE compound objects. We conclude by comparing the OAI-ORE approach for publishing and sharing related scientific outcomes with the METS-based approach employed by other scientific laboratories.","PeriodicalId":325840,"journal":{"name":"2009 Fifth IEEE International Conference on e-Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116669430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Fluxdata.org: Publication and Curation of Shared Scientific Climate and Earth Sciences Data Fluxdata.org:气候和地球科学共享数据的出版和管理

2009 Fifth IEEE International Conference on e-Science Pub Date : 2009-12-09 DOI: 10.1109/E-SCIENCE.2009.25

M. Humphrey, D. Agarwal, C. Ingen

引用次数: 9

Publish My Data: A Composition of Services from ANDS and ARCS 发布我的数据:来自ANDS和arc的服务组合

2009 Fifth IEEE International Conference on e-Science Pub Date : 2009-12-01 DOI: 10.1109/E-SCIENCE.2009.31

A. Burton, A. Treloar

引用次数: 18

Rapid Chemistry Portals through Engaging Researchers 通过参与研究人员快速化学门户

2009 Fifth IEEE International Conference on e-Science Pub Date : 2009-12-01 DOI: 10.1109/e-Science.2009.47

J. Koetsier, Andrew Turner, Patricia Richardson, Jano van Hemert

引用次数: 5

An Autonomic Approach to Integrated HPC Grid and Cloud Usage 集成HPC网格和云使用的自主方法

2009 Fifth IEEE International Conference on e-Science Pub Date : 2009-12-01 DOI: 10.1109/E-SCIENCE.2009.58

Hyunjoo Kim, Y. E. Khamra, S. Jha, M. Parashar

{"title":"An Autonomic Approach to Integrated HPC Grid and Cloud Usage","authors":"Hyunjoo Kim, Y. E. Khamra, S. Jha, M. Parashar","doi":"10.1109/E-SCIENCE.2009.58","DOIUrl":"https://doi.org/10.1109/E-SCIENCE.2009.58","url":null,"abstract":"Clouds are rapidly joining high-performance Grids as viable computational platforms for scientific exploration and discovery, and it is clear that production computational infrastructures will integrate both these paradigms in the near future. As a result, understanding usage modes that are meaningful in such a hybrid infrastructure is critical. For example, there are interesting application workflows that can benefit from such hybrid usage modes to, per- haps, reduce times to solutions, reduce costs (in terms of currency or resource allocation), or handle unexpected runtime situations (e.g., unexpected delays in scheduling queues or unexpected failures). The primary goal of this paper is to experimentally investigate, from an applications perspective, how autonomics can enable interesting usage modes and scenarios for integrating HPC Grid and Clouds. Specifically, we used a reservoir characterization application workflow, based on Ensemble Kalman Filters (EnKF) for history matching, and the CometCloud autonomic Cloud engine on a hybrid platform consisting of the TeraGrid and Amazon EC2, to investigate 3 usage modes (or autonomic objectives) – acceleration, conservation and resilience.","PeriodicalId":325840,"journal":{"name":"2009 Fifth IEEE International Conference on e-Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126446167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 50

A Topological Framework for the Interactive Exploration of Large Scale Turbulent Combustion 大尺度湍流燃烧相互作用探索的拓扑框架

2009 Fifth IEEE International Conference on e-Science Pub Date : 2009-12-01 DOI: 10.1109/E-SCIENCE.2009.42

P. Bremer, G. Weber, Julien Tierny, Valerio Pascucci, M. Day, J. Bell

{"title":"A Topological Framework for the Interactive Exploration of Large Scale Turbulent Combustion","authors":"P. Bremer, G. Weber, Julien Tierny, Valerio Pascucci, M. Day, J. Bell","doi":"10.1109/E-SCIENCE.2009.42","DOIUrl":"https://doi.org/10.1109/E-SCIENCE.2009.42","url":null,"abstract":"The advent of highly accurate, large scale volumetric simulations has made data analysis and visualization techniques an integral part of the modern scientific process. To develop new insights from raw data, scientists need the ability to define features of interest in a flexible manner and to understand how changes in the feature definition impact the subsequent analysis of the data. Therefore, simply exploring the raw data is not sufficient. This paper presents a new topological framework for the analysis of large scale, time-varying, turbulent combustion simulations. It allows the scientists to interactively explore the complete parameter space of fuel consumption thresholds for an entire time-dependent combustion simulation. By computing augmented merge trees and their corresponding data segmentations, the system allows the user complete flexibility to segment, select, and track burning cells through time thanks to a linked view interface. We developed this technique in the context of low-swirl turbulent pre-mixed same simulation analysis, where the topological abstractions enable an efficient tracking through time of the burning cells and provide new qualitative and quantitative insights into the dynamics of the combustion process.","PeriodicalId":325840,"journal":{"name":"2009 Fifth IEEE International Conference on e-Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121083813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 16