1. Scalable Interfaces for Geometry and Mesh based Applications (SIGMA)
Capabilities: Geometry and Mesh (data) generation/handling infrastructure with flexible solver interfaces.
CGM supports both open-source (OCC) and commercial (ACIS) geometry modeling engines.
MOAB provides scalable mesh (data) usage in applications through efficient array-based access; Support parallel I/O, visualization.
MeshKit provides unified meshing interfaces to advanced algorithms and to external packages (Cubit/Netgen).
Interfaces for mesh-to-mesh coupling and discrete solvers:
CouPE provides component based multi-physics solver capability utilizing underlying scalable mesh-to-meh solution transfers.
PETSc – MOAB interface simplifies efficient discretization and solution of PDE on unstructured meshes with FEM.
Download SIGMA 1.0 tools:
For support, [package=cgm,moab,lasso,meshkit]
Website:

2. SIGMA: Application highlights
Wide variety of DOE applications covering Climate, Nuclear Fusion & Fission, Mesh generation and Visualization.
NEK5000: Spectral element CFD code
Atmospheric Modeling with conservative remapping
Fusion: radiative transport
Coupled multi-physics nuclear reactor analysis

3. SIGMA: Research areas and collaboration
Application and algorithm development in collaboration with several national laboratories and universities. Some active research areas:
scalable meshing algorithms and parallel mesh infrastructure,
mesh-to-mesh coupling and conservative solution transfer,
field descriptions on mesh and flexible discretization schemes for PDEs,
solver interactions and multiphysics/multiscale capabilities.
SBIR (Kitware): Development of graphical front end and analysis tool
Based on Reactor Geometry Generator and MeshKit along with CGM+MOAB
Kitware GUI: Visualize geometry, generate mesh & analyze