1. Presented by High-Performance Visualization of Geographic Data Bhaduri L. Budhendra and Alexandre Sorokine Geographic Information Science & Tech Computational Sciences & Engineering Division

2. 2 Bhaduri_HPC_GIS_0611 Geographic information systems: A short introduction Uses  Government  Homeland security  Resource management  Environmental management A geographic information system (GIS) is an information system to handle geographic data

3. 3 Bhaduri_HPC_GIS_0611 GIS and high-performance computing: Incentives for convergence  Growing size of geographic databases  LIDAR (light detection and ranging) data  Hi-resolution satellite imagery  Sensor networks  Large national datasets (LandScan, Homeland Security Infrastructure Protection)  Integration of multiple data sources  Internet applications  OpenGIS standards  New technologies and analytical methods  Dynamic data analysis  Data mining and visual exploratory methods  Simulation models

4. 4 Bhaduri_HPC_GIS_0611 High-performance visualization architecture for GIS  EVEREST Visualization Cluster  30 x 8 foot viewing area  11,530  3,072 pixel array (35 MP)  27 digital light projectors  14 rendering nodes + 1 head node  Quadrics Elan3 network  Software  OS SUSE Linux  Xdmx distributed X server  GRASS GIS Rendering Node Display Head Node

5. 5 Bhaduri_HPC_GIS_0611 pd-GRASS: Parallel display for GRASS GIS GRASS GIS  Freely available  No license fees  Works on LINUX pd-GRASS  GRASS module for parallel visualization  Full parallelization  Tested with data sets of up to 40 GB  Full GRASS GIS functionality  Available under general public license from http://www.ornl.gov/gist/software/grass/

6. 6 Bhaduri_HPC_GIS_0611 pd-GRASS examples 3-arcsecond cell size About 3  10 9 pixel  Shuttle Radar Topography Mission (SRTM) data set

7. 7 Bhaduri_HPC_GIS_0611 High-resolution 3-dimensional view of LIDAR data 10 8 cells Approximately 4 GB LIDAR data set for the city of Houston

8. 8 Bhaduri_HPC_GIS_0611 EDGAR: Electric grid dynamic real-time visualization system Visualization of the electric grid Real-time data collection Approximately 80,000 nodes and 30,000 lines

9. 9 Bhaduri_HPC_GIS_0611 Contacts Budhendra Bhaduri Geographic Information Science and Tech Computational Sciences and Engineering Division (865) 241-9272 bhaduribl@ornl.gov Alexandre Sorokine Geographic Information Science and Tech Computational Sciences and Engineering Division (865) 576-7597 sorokina@ornl.gov 9 Bhaduri_HPC_GIS_0611