Demos in the Indiana University Booth
Hybrid Workflows with LEAD II and Trident
Supporting Real Time Weather Predictions with LEAD II - Experiences with Vortex2 Experiment
Hybrid workflow systems work cooperatively to utilize high end computing and cloud resources. We demonstrate early success with weather workflows that were produced to support the Vortex 2 tornado field effort and running under the open source Trident Scientific Workflow Workbench and Apache ODE orchestration engines. Both presentations will be accessible through the touchscreen. Visitors will also have the option, with guidance from D2I staff, to run two different workflows. The first will be the Vortex2 workflow and takes about an hour. A 2nd option will be a workflow similar to Vortex2 which bypasses ext2arps and WRF execution so it can run in a smaller window of time in order to demo visualization generation and mobile web site.
Open Gateway Computing Environments (OGCE) Tool Suite
OGCE provides tools for science gateways that can be used in whole are in part; gateways can take specific components workflow such as composers or fault tolerant job managers, that solve specific problems, or they can use the entire software suite to build their gateway. Featured tools include the Gadget Container, an Open Social container for scientific web interfaces; GFAC, a Web service for wrapping command line tools as secure online services; XRegistry, a secure service for registering and and workflow and services; and XBaya, a visual composer of services into composite applications.
Cloud Computing and FutureGrid
Funded by a $10 million grant from the National Science Foundation, FutureGrid is a high performance test bed that allows scientists to work collaboratively to develop and test novel approaches to parallel, grid and cloud computing. FutureGrid is one of only two experimental systems in the NSF Track 2 program that funds the most powerful, next-generation scientific supercomputers in the nation.
Application-level Fault Tolerance in Open MPI through Preemptive Process Migration and Resiliency
As HPC systems continue to grow in size, the mean time to failure (MTTF) for these systems is on a proportional decline. The DARPA Exascale report predicts a component failure every 35 minutes. Without fault tolerance mechanisms in place, such short MTTF will be a significant limit to application scalability. This demonstration involves the sustained operation of a parallel scientific application in the face of node failures, using adaptive fault tolerance techniques in Open MPI, a production-quality MPI-2 implementation.
A hands-on view of the world’s most powerful networks.
Worldview is an interactive, three dimensional, real-time network visualization system designed to make the world of networks readily accessible for network engineers and non-experts alike.
• Network Visualization – compare multiple networks to better understand the research and educational networking landscape
• Interactive Functionality – use the intuitive multi-touch interface to explore the world
• Situational Awareness – keep an eye on weather and earthquakes while watching realtime network state
• History – replay network activity to observe historic trends
Global Epidemic and Mobility (GLEaM) Computational Tool
The GLobal Epidemic and Mobility (GLEaM) computational tool integrates socio-demographic and human mobility data in a spatially structured stochastic modeling approach to simulate the spread of epidemics at the world-wide scale. This approach defines models that are fairly scalable and can be conveniently used to provide worldwide scenarios and patterns for emerging disease spreading. The display features the GLEaM computational tool architecture and a novel visualization component that, by means of a touch screen, enables users to interactively compare the output of the GLEaM model though dynamic map visualization and a set of charts that quantitatively describe the geo-temporal progression of the disease in proposed different scenarios.
Exposing Real-World Applications of Computational Science using
Shown here is the first of two stereoscopic videos primarily aimed at middle-school children. Each video is centered on a real-world application of computational science and features current research project(s) that utilize the TeraGrid. Visually and cognitively, the videos engage the viewer while delivering the message that computer simulation is an important part of our modern world. The first video features the LEADII project and discusses atmospheric science and weather. The second video will highlight projects from astronomy and astrophysics. Each video will be approximately five minutes in length and contain a mixture of computer-generated artistic representations, computer-generated results from scientific visual simulations, and live-action stereoscopic video. The initial two videos will be released in various electronic formats this coming winter (2010).
Acknowledgements: This material is based in part upon work supported by the National Science Foundation under Grant Number OCI-0503697. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.