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Displaying 1-29 out of 29 total
An Experimental Distributed Visualization System for Petascale Computing
Found in: Computing in Science and Engineering
By Jinghua Ge, Andrei Hutanu, Cornelius Toole, Robert Kooima, Imtiaz Hossain, Gabrielle Allen
Issue Date:September 2010
pp. 78-83
<p>The coming era of petascale computing and heterogeneous platforms calls for fundamental changes in perspective on how we design distributed visualization software.</p>
 
Improving Application Execution in Multicluster Grids
Found in: Computational Science and Engineering, IEEE International Conference on
By Zhou Lei, Zhifeng Yun, Gabrielle Allen, Xin Li, Nian-Feng Tzeng, Christopher White
Issue Date:July 2008
pp. 163-170
Multicluster Grids have emerged as major execution environments to solve large-scale compute-intensive applications, with each participating cluster having its own scheduler under different policies. In order to take full advantages of multicluster Grid ca...
 
Semantic Enabled Metadata Framework for Data Grids
Found in: Complex, Intelligent and Software Intensive Systems, International Conference
By Dayong Huang, Xinqi Wang, Gabrielle Allen, Tevfik Kosar
Issue Date:March 2008
pp. 381-386
We designed a semantic enabled metadata framework using ontology for multi-disciplinary and multi-institutional large scale scientific data sets in a Data Grid setting. There are two main issues we intend to address: data integration for semantically and p...
 
An Integrated Grid Portal for Managing Energy Resources
Found in: e-Science and Grid Computing, International Conference on
By Promita Chakraborty, Gabrielle Allen, Zhou Lei, John Lewis, Adam Lewis, Ian Chang-Yen, Itthichok Jangjaimon, Nian-Feng Tzeng
Issue Date:December 2007
pp. 25-33
The discovery and management of energy resources, especially at locations in the Gulf of Mexico, requires an economic but technically enhanced infrastructure. Research teams from Louisiana State University, University of Louisiana at Lafayette, and Souther...
 
Ensemble Subsurface Modeling Using Grid Computing Technology
Found in: Computer and Computational Sciences, International Multi-Symposiums on
By Xin Li, Zhou Lei, Christopher White, Gabrielle Allen
Issue Date:August 2007
pp. 235-244
Ensemble Kalman Filter (EnKF) uses a randomized ensemble of subsurface models for error and uncertainty estimation. However, the complexity of geological models and the requirement of a large number of simulation runs make routine applications extremely di...
 
TOPSAW Sawing Optimization Analysis Using Grid Computing
Found in: Computer and Computational Sciences, International Multi-Symposiums on
By Ashwin Bommathanahalli, Maoyuan Xie, Zhifeng Yun, Sun JosephChang, Zhou Lei, Gabrielle Allen
Issue Date:August 2007
pp. 228-234
TOPSAW program has been developed and successfully used in the replication of sawmill cutting to determine the optimal cutting pattern for a log to get the maximum value for lumber in terms of dollars based on National Hardwood Lumber Association grading r...
 
Cluster Abstraction: Towards Uniform Resource Description and Access in Multicluster Grid
Found in: Computer and Computational Sciences, International Multi-Symposiums on
By Maoyuan Xie, Zhifeng Yun, Zhou Lei, Gabrielle Allen
Issue Date:August 2007
pp. 220-227
Multicluster Grid Maoyuan Xie, Zhifeng Yun, Zhou Lei, Gabrielle Allen Center for Computation & Technology, Louisiana State University, Louisiana, USA {mxie, zyun, zlei, gallen}@cct.lsu.edu Abstract Multicluster Grid has emerged as a major approach for ...
 
An Innovative Simulation Approach for Water Mediated Attraction Based on Grid Computing
Found in: Computer and Computational Sciences, International Multi-Symposiums on
By Zhifeng Yun, Samuel J. Keasler, Maoyuan Xie, Zhou Lei, Gabrielle Allen
Issue Date:August 2007
pp. 204-211
In order to investigate the behavior of the solvation, particularly, to quantify the solvent effects on the proper- ties of solutes on a molecular basis, several simulation ap- proaches are proposed, which make enable the modeling and rigorous examination ...
 
A Generic Task-Farming Framework for Reservoir Analysis in a Grid Environment
Found in: Parallel Processing Workshops, International Conference on
By Santiago Pena, Dayong Huang, Zhou Lei, Gabrielle Allen, Xin Li, Chris D. White
Issue Date:August 2006
pp. 426-434
The vast majority of research projects involving Grid Computing have focused on the development and standardization of the middleware that allows Grids to function. Despite the maturity of the middleware as the Grid core, the actual application of Grids to...
 
ResGrid: A Grid-aware Toolkit for Reservoir Uncertainty Analysis
Found in: Cluster Computing and the Grid, IEEE International Symposium on
By Zhou Lei, Dayong Huang, Archit Kulshrestha, Santiago Pena, Gabrielle Allen, Xin Li, Christopher White, Richard Duff, John R. Smith, Subhash Kalla
Issue Date:May 2006
pp. 249-252
Many efforts in Grid communities have focused on middleware research and development. However, Grid application-level tools are needed which can build higherlevel functionality on top of core middleware services. We work with specific classes of scientific...
 
The GridLab Grid Application Toolkit
Found in: High-Performance Distributed Computing, International Symposium on
By Gabrielle Allen, Kelly Davis, Thomas Dramlitsch, Tom Goodale, Ian Kelley, Gerd Lanfermann, Jason Novotny, Thomas Radke, Kashif Rasul, Michael Russell, Ed Seidel, Oliver Wehrens
Issue Date:July 2002
pp. 411
We present a synopsis of the Grid Application Toolkit, under development in the EU GridLab project, along with some of the new application scenarios which it will enable.
   
Supporting Efficient Execution in Heterogeneous Distributed Computing Environments with Cactus and Globus
Found in: SC Conference
By Gabrielle Allen, Ian Foster, Nicholas T. Karonis, Matei Ripeanu, Edward Seidel, Brian Toonen
Issue Date:November 2001
pp. 52
Improvements in the performance of processors and networks make it both feasible and interesting to treat collections of workstations, servers, clusters, and supercomputers as integrated computational resources, or Grids. However, the highly heterogeneous ...
   
Early Experiences with the EGrid Testbed
Found in: Cluster Computing and the Grid, IEEE International Symposium on
By Gabrielle Allen, Thomas Dramlitsch, Tom Goodale, Gerd Lanfermann, Thomas Radke, Ed Seidel, Thilo Kielmann, Kees Verstoep, Zoltan Balaton, Peter Kacsuk, Ferenc Szalai, Joern Gehring, Axel Keller, Achim Streit, Ludek Matyska, Miroslav Ruda, Ales Krenek, Hara
Issue Date:May 2001
pp. 130
The Testbed and Applications working group of the European Grid Forum (EGrid) is actively building and experimenting with a grid infrastructure connecting several research-based supercomputing sites located in Europe. This paper reports on our first feasib...
 
Solving Einstein's Equations on Supercomputers
Found in: Computer
By Gabrielle Allen, Tom Goodale, Gerd Lanfermann, Thomas Radke, Edward Seidel, Werner Benger, Hans-Christian Hege, Andre Merzky, Joan Massó, John Shalf
Issue Date:December 1999
pp. 52-58
<p>In 1916, Albert Einstein published his famous general theory of relativity, which contains the rules of gravity and provides the basis for modern theories of astrophysics and cosmology. For many years, physicists, astrophysicists, and mathematicia...
 
The Cactus Computational Toolkit and Using Distributed Computing to Collide Neutron Stars
Found in: High-Performance Distributed Computing, International Symposium on
By Gabrielle Allen, Tom Goodale, Joan Massó, Edward Seidel
Issue Date:August 1999
pp. 7
We are developing a system for collaborative research and development for a distributed group of researchers at different institutions around the world. In a new paradigm for collaborative computational science, the computer code and supporting infrastruct...
 
The Cactus Computational Collaboratory: Enabling Technologies for Relativistic Astrophysics, and a Toolkit for Solving PDE's by Communities in Science and Engineering
Found in: Frontiers of Massively Parallel Processing, Symposium on the
By Gabrielle Allen, Tom Goodale, Edward Seidel
Issue Date:February 1999
pp. 36
We are developing a system for collaborative research and development for a distributed group of researchers at different institutions around the world. In a new paradigm for {collaborative} computational science, the computer code and supporting infrastru...
 
Collaborating Mechanical Design Phases Across A Grid
Found in: Computational Science and Engineering - Workshops, IEEE International Conference on
By Zhifeng Yun, Maoyuan Xie, Fuguo Zhou, Gabrielle Allen, Tevfik Kosar, Zhou Lei
Issue Date:July 2008
pp. 65-70
Traditional mechanical design process faces three major challenges: 1) the need for rapid and repeated numerous time-consuming simulations, such as Finite Element Analysis and Computational Fluid Dynamics; 2) the need for dataset management; 3) the lack of...
 
Nomadic Migration: Fault Tolerance in a Disruptive Grid Environment
Found in: Cluster Computing and the Grid, IEEE International Symposium on
By Gerd Lanfermann, Gabrielle Allen, Thomas Radke, Edward Seidel
Issue Date:May 2002
pp. 280
<p>Nomadic Migration describes a technology, which provides an application with the ability to seek out and exploit remote computing resources by migrating tasks from site to site, dynamically adapting the application to a changing Grid environment. ...
   
Nomadic Migration: A New Tool for Dynamic Grid Computing
Found in: High-Performance Distributed Computing, International Symposium on
By Gerd Lanfermann, Gabrielle Allen, Thomas Radke, Edward Seidel
Issue Date:August 2001
pp. 0429
Abstract: We describe the design and implementation of a technology which pro vides an application with the ability to seek out and exploit remote computing resources by migrating tasks from site to site, dynamically adapting the application to a changing ...
 
Efficient Techniques for Distributed Computing
Found in: High-Performance Distributed Computing, International Symposium on
By Thomas Dramlitsch, Gabrielle Allen, Edward Seidel
Issue Date:August 2001
pp. 0435
Abstract: We discuss a set of novel techniques we are developing, which build on standard tools, to make distributed computing for large-scale simulations across multiple machines (even scattered across different continents) a reality. With these technique...
 
The Cactus Code: A Problem Solving Environment for the Grid
Found in: High-Performance Distributed Computing, International Symposium on
By Gabrielle Allen, Werner Benger, Tom Goodale, Hans-Christian Hege, Gerd Lanfermann, André Merzky, Thomas Radke, Edward Seidel, John Shalf
Issue Date:August 2000
pp. 253
Cactus is an open source problem-solving environment designed for scientists and engineers. Its modular structure facilitates parallel computation across different architectures and collaborative code development between different groups. The Cactus Code o...
 
Design, implementation and use of a simulation data archive for coastal science
Found in: Proceedings of the 19th ACM International Symposium on High Performance Distributed Computing (HPDC '10)
By Gabrielle Allen, Harsha Bhagawaty, Lei Jiang, Nathan Brener, Sreekanth Pothanis, Tevfik Kosar
Issue Date:June 2010
pp. 651-657
With many researchers now having easy access to supercomputers, coastal scientists are able to develop and run simulations that model the physical and ecological processes in ocean or nearshore areas in a distributed and collaborative environment. However,...
     
Ensuring correctness at the application level: a software framework approach
Found in: Proceedings of the 2009 Workshop on Component-Based High Performance Computing (CBHPC '09)
By Eloisa Bentivegna, Erik Schnetter, Gabrielle Allen, Oleg Korobkin
Issue Date:November 2009
pp. 1-11
As scientific applications extend to the simulation of more and more complex systems, they involve an increasing number of abstraction levels, at each of which errors can emerge and across which they can propagate; tools for correctness evaluation and enfo...
     
A grid-enabled workflow system for reservoir uncertainty analysis
Found in: Proceedings of the 6th international workshop on Challenges of large applications in distributed environments (CLADE '08)
By Christopher White, Emrah Ceyhan, Gabrielle Allen, Tevfik Kosar
Issue Date:June 2008
pp. 1-6
Reservoir uncertainty analysis is significant for petroleum engineers for predictions of reservoir performance. However, analysis of reservoir performance uncertainty is challenging because large amounts of data must be transferred efficiently, reliably an...
     
Advance reservations: a theoretical and practical comparison of GUR & HARC
Found in: Proceedings of the 15th ACM Mardi Gras conference: From lightweight mash-ups to lambda grids: Understanding the spectrum of distributed computing requirements, applications, tools, infrastructures, interoperability, and the incremental adoption of key capabilities (MG '08)
By Gabrielle Allen, Maria Cristina Tugurlan, Yixin Wu
Issue Date:January 2008
pp. N/A
Grid computing has provided new capabilities for connecting distributed computing nodes, experimental instruments, visualization facilities, data storage and people across high speed networks. Emerging communities of "e-Scientists" are now building cyber-i...
     
Feature rich, enhanced grid portal for LONI
Found in: Proceedings of the 15th ACM Mardi Gras conference: From lightweight mash-ups to lambda grids: Understanding the spectrum of distributed computing requirements, applications, tools, infrastructures, interoperability, and the incremental adoption of key capabilities (MG '08)
By Archit Kulshrestha, Daniel S. Katz, Gabrielle Allen, Katerina Stamou, Prathyusha V. Akunuri
Issue Date:January 2008
pp. N/A
Well designed portals can provide user communities with easy and intuitive access to high performance computing resources, applications, collaborators and data. Generic portal interfaces can for example provide information about available compute resources...
     
Near realtime visualization of coastal modelling results with WMS and Google Maps
Found in: Proceedings of the 15th ACM Mardi Gras conference: From lightweight mash-ups to lambda grids: Understanding the spectrum of distributed computing requirements, applications, tools, infrastructures, interoperability, and the incremental adoption of key capabilities (MG '08)
By Alex Nagelberg, Carola Kaiser, Gabrielle Allen, Hartmut Kaiser
Issue Date:January 2008
pp. N/A
The SCOOP (SURA (Southeastern Universities Research Association) Coastal Ocean Observing and Prediction, http://scoop.sura.org) project promotes the effective and rapid fusion of observed oceanographic data with numerical models and facilitates the rapid d...
     
Grid-enabled sawing optimization: from scanning images to cutting solution
Found in: Proceedings of the 15th ACM Mardi Gras conference: From lightweight mash-ups to lambda grids: Understanding the spectrum of distributed computing requirements, applications, tools, infrastructures, interoperability, and the incremental adoption of key capabilities (MG '08)
By Ashwin Bommathanahalli, Gabrielle Allen, Sun Joseph Chang, Zhifeng Yun, Zhou Lei
Issue Date:January 2008
pp. N/A
Due to the unrepeatability of log sawing, sawing technology that will improve sawmill productivity before actually cutting the logs needs to be developed. TOPSAW program has been tested and successfully used to replicate the sawmill cutting and determine t...
     
Supporting efficient execution in heterogeneous distributed computing environments with cactus and globus
Found in: Proceedings of the 2001 ACM/IEEE conference on Supercomputing (CDROM) (Supercomputing '01)
By Brian Toonen, Edward Seidel, Gabrielle Allen, Ian Foster, Matei Ripeanu, Nicholas T. Karonis, Thomas Dramlitsch
Issue Date:November 2001
pp. 52-52
Improvements in the performance of processors and networks make it both feasible and interesting to treat collections of workstations, servers, clusters, and supercomputers as integrated computational resources, or Grids. However, the highly heterogeneous ...
     
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