Document Source: http://www.csm.ornl.gov/~dickson/SicDAC_Vis_2002_Notes.html
SciDAC Status Overview -- Alan Laub
ISIC - Integrated Software Infrastructure Center
MICS - Math, Info, Computer Science
Tony Mezzacappa - TeraScale Supernova Initiative
Vis platforms - EnSight -- TeraScale Browser
Need:
(My name (?) was on one of Tony's Project org. graphs)Chris Johnson, Utah/ SCI Institute
Integrated Software Environment -- SciRun, BioPSE -- Computational Workbench - Problem-Solving Environment
What If?
Viz has no 'gold-standard' test sets for collaborative research
S3D Direct Numerical Simulation
Wendy Koegler - Feature Detection Tools (Sandia)
Threshold Detection, Orthogonal Decomposition
Event Searching - interaction among features
Don Middleton, NCAR, Boulder, CO
Vis5D (Wisconsin) Open Sourced Vis5D+ (NCAR) - at end-of-life
Victoria Interrante, U Minn.
Visual Representation
Visibility-Impeding Halo - inter-ocular gaps - push 3-D depth cues
Essential Features -- non-photorealistic rendering - principal-line shading
T-Rex Time-Dependent, 3-D Texture for Fluid Flows
Dean Williams, LLNL
Python - import C++, FORTRAN, Vtk modules via Python wrappers,
DODS (http/HTML DB query language?)
John van Rosendale
Vis needs for SciDAC
Examples:
Abstract Data Model:
HDF-5 - Can extract one scalar value per point from multi-valued meshes
Visual Analytics - Viz as debugging
3-D Electron-Beam Microscopy
Russ Taylor, UNC - Haptics
Hybrid Rendering technique for visualizing particle beam dynamics data
Texture-based volume rendering for low-detail regions (PC graphics hardware) Render points for high-interest/detail areas. Reduces storage requirements. Point Data (x, y, z) (px, py, pz) (momenta)
Partition -> Octree, Extract -> Hybrid Representation - sort by density - on NERSC/LBL (Same machine simulation ran on). 5GB -> 100MB Data reduction
Need particle corellation tool
Magnetic field lines in accelerator - rendering dense, intertwined lines Illuminated, textures, semi-transparent, haloing Hierarchically organized, for interaction
Uses Victoria Interrante's haloing rendering technique?
Need to abstract field complexity - cannot viz 100K - 1M particle paths
Dave Schissel, Fusion SciDAC Collaboratory
D. Spong, ORNL LHD Toroidal Accelerator Viz
Benchmark Sim vs. Theory & Experiment
Larry Arnstein, UW Cell Systems Initiative
VLSI scales of abstraction - synchronous function blocks, concurrent processes Verification, back-annotation Abstraction results in sub-optimal overall design
Labscape - Ubiquitous Lab Assistant
Graph w/globally unique nodes, specialization through inheritance, hierarchy, annotation
Material, control and data flow
Used Human Factors study to evaluate tool
Deployment at High Schools