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Displaying 1-14 out of 14 total
Poster: Bringing Task and Data Parallelism to Analysis of Climate Model Output
Found in: 2012 SC Companion: High Performance Computing, Networking, Storage and Analysis (SCC)
By Robert Jacob,Jayesh Krishna,Xiabing Xu,Sheri Mickelson,Tim Tautges,Mike Wilde,Robert Latham,Ian Foster,Robert Ross,Mark Hereld,Jay Larson,Pavel Bochev,Kara Peterson,Mark Taylor,Karen Schuchardt,Jain Yin,Don Middleton,Mary Haley,David Brown,Wei Huang,Dennis Shea,Richard Brownrigg,Mariana Vertenstein,Kwan-Liu Ma,Jingrong Xie
Issue Date:November 2012
pp. 1495
Climate models are both outputting larger and larger amounts of data and are doing it on more sophisticated numerical grids. The tools climate scientists have used to analyze climate output, an essential component of climate modeling, are single threaded a...
 
Topology-aware data movement and staging for I/O acceleration on Blue Gene/P supercomputing systems
Found in: SC Conference
By Venkatram Vishwanath,Mark Hereld,Vitali Morozov,Michael E. Papka
Issue Date:November 2011
pp. 1-11
There is growing concern that I/O systems will be hard pressed to satisfy the requirements of future leadership-class machines. Even current machines are found to be I/O bound for some applications. In this paper, we identify existing performance bottlenec...
 
Proactive Support for Large-Scale Data Exploration
Found in: 2013 IEEE International Symposium on Parallel & Distributed Processing, Workshops and Phd Forum (IPDPSW)
By Mark Hereld,Tanu Malik,Venkatram Vishwanath
Issue Date:May 2013
pp. 2025-2034
Computational science is generating increasingly unwieldy datasets created by complex and high-resolution simulations of physical, social, and economic systems. Traditional post processing of such large datasets requires high bandwidth to large storage res...
 
A Web 2.0-Based Scientific Application Framework
Found in: Web Services, IEEE International Conference on
By Wenjun Wu, Thomas D. Uram, Michael Wilde, Mark Hereld, Michael E. Papka
Issue Date:July 2010
pp. 642-643
A significant obstacle to building usable, web-based interfaces for computational science in a Grid environment is how to deploy scientific applications on computational resources and expose these applications as web services. To streamline the development...
 
ParalleX: A Study of A New Parallel Computation Model
Found in: Parallel and Distributed Processing Symposium, International
By Guang R. Gao, Thomas Sterling, Rick Stevens, Mark Hereld, Weirong Zhu
Issue Date:March 2007
pp. 294
This paper proposes the study of a new computation model that attempts to address the underlying sources of performance degradation (e.g. latency, overhead, and starvation) and the difficulties of programmer productivity (e.g. explicit locality management ...
 
Next Generation System Software for Future High-End Computing Systems
Found in: Parallel and Distributed Processing Symposium, International
By Guang R. Gao, Kevin B. Theobald, Ziang Hu, Haiping Wu, Jizhu Lu, Thomas L. Sterling, Keshav Pingali, Paul Stodghill, Rick Stevens, Mark Hereld
Issue Date:April 2002
pp. 0175b
Future high-end computers will offer great performance improvements over today's machines, enabling applications of far greater complexity. However, designers must solve the challenge of exploiting massive parallelism efficiency in the face of very high la...
 
Prophesy: An Infrastructure for Analyzing and Modeling the Performance of Parallel and Distributed Applications
Found in: High-Performance Distributed Computing, International Symposium on
By Valerie E. Taylor, Xingfu Wu, Jonathan Geisler, Xin Li, Zhiling Lan, Rick Stevens, Mark Hereld, Ivan R. Judson
Issue Date:August 2000
pp. 302
Efficient execution of applications requires insight into how the system features affect the performance of the application. For distributed systems, the task of gaining this insight is complicated by the complexity of the system features. This insight gen...
 
Tutorial: Introduction to Building Projection-based Tiled Display Systems
Found in: IEEE Computer Graphics and Applications
By Mark Hereld, Ivan R. Judson, Rick L. Stevens
Issue Date:July 2000
pp. 22-28
This tutorial introduces the concepts and technologies needed to build projector-based display systems. The motivations for constructing tiled displays are many. Some applications are limited by the resolution of today's single displays. Other applications...
 
Accelerating I/O Forwarding in IBM Blue Gene/P Systems
Found in: SC Conference
By Venkatram Vishwanath, Mark Hereld, Kamil Iskra, Dries Kimpe, Vitali Morozov, Michael E. Papka, Robert Ross, Kazutomo Yoshii
Issue Date:November 2010
pp. 1-10
Current leadership-class machines suffer from a significant imbalance between their computational power and their I/O bandwidth. I/O forwarding is a paradigm that attempts to bridge the increasing performance and scalability gap between the compute and I/O...
 
Electronic poster: co-visualization of full data and in situ data extracts from unstructured grid cfd at 160k cores
Found in: Proceedings of the 2011 companion on High Performance Computing Networking, Storage and Analysis Companion (SC '11 Companion)
By Andrew Bauer, Benjamin Matthews, Jing Fu, Kenneth Jansen, Mark Hereld, Min Zhou, Onkar Sahni, Venkatram Vishwanath, Berk Geveci, Christopher Carothers, Kalyan Kumaran, Mark Shephard, Michael Papka, Michel Rasquin, Ning Liu, Patrick Marion, Raymond Loy
Issue Date:November 2011
pp. 103-104
Scalability and time-to-solution studies have historically been focused on the size of the problem and run time. We consider a more strict definition of "solution" whereby a live data analysis (co-visualization of either the full data or in situ data extra...
     
Prophesy: Automating the Modeling Process
Found in: International Workshop on Active Middleware Services
By Valerie Taylor, Xingfu Wu, Jonathan Geisler, Xin Li, Zhiling Lan, Mark Hereld, Ivan R. Judson, Rick Stevens
Issue Date:August 2001
pp. 3
Performance models provide significant insight into the performance relationships between an application and the system, either parallel or distributed, used for execution. The development of models often requires significant time, sometimes in the range o...
 
Modeling early galaxies using radiation hydrodynamics
Found in: Proceedings of the 2011 companion on High Performance Computing Networking, Storage and Analysis Companion (SC '11 Companion)
By Daniel R. Reynolds, Eric C. Olson, Mark Hereld, Michael E. Papka, Michael L. Norman, Rick Wagner, Joseph A. Insley, Robert Harkness, Venkatram Vishwanath
Issue Date:November 2011
pp. 141-142
This simulation uses a flux-limited diffusion solver to explore the radiation hydrodynamics of early galaxies, in particular, the ionizing radiation created by Population III stars. At the time of this rendering, the simulation has evolved to a redshift of...
     
Examples of in transit visualization
Found in: Proceedings of the 2nd international workshop on Petascal data analytics: challenges and opportunities (PDAC '11)
By Manish Parashar, Michael E. Papka, Nathan Fabian, Pat Marion, Ron Oldfield, Scott Klasky, Sebastien Jourdain, Venkatram Vishwanath, Ciprian Docan, Kenneth Moreland, Mark Hereld, Norbert Podhorszki
Issue Date:November 2011
pp. 1-6
One of the most pressing issues with petascale analysis is the transport of simulation results data to a meaningful analysis. Traditional workflow prescribes storing the simulation results to disk and later retrieving them for analysis and visualization. H...
     
Modeling resource-coupled computations
Found in: Proceedings of the 2009 Workshop on Ultrascale Visualization (UltraVis '09)
By Eric C. Olson, Joseph A. Insley, Mark Hereld, Michael E. Papka, Thomas D. Uram, Venkatram Vishwanath
Issue Date:November 2009
pp. 27-33
Increasingly massive datasets produced by simulations beg the question How will we connect this data to the computational and display resources that support visualization and analysis? This question is driving research into new approaches to allocating com...
     
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