SIGMA Release 1.2.1

Posted by Vijay Mahadevan in CGM, Meshkit, MOAB, News, SIGMA

SIGMA v1.2.1 Release Notes

SIGMA v1.2.1 minor release includes a consolidated packaging of all geometry and mesh related components. Details on compatibility of the different tools and dependent libraries are available separately and all questions can be directed to <package>[email protected].
The current release contains the following SIGMA tools:

• Common Geometry Module (CGM) – Version 15.1
• Mesh Oriented datABase (MOAB) – Version 4.9.1
• MeshKit library (MeshKit) – Version 1.4.1

CGM Version 15.1

This version of CGM is compatible with Cubit 15.0 and OCE 0.17.1.

Enhancements

• PR #37: Implement Surface::closest_point_along_vector for OCC and test the method.
• PR #39: Added new utilities for performing imprint and merge operations.

Fixes

• PR #38: Fix a bug in OCCSurface::closest_point_along_vector and add test that exercised it.
• PR #35, #36: CMake configuration fixes and updates for linking with dependencies including OCC.

MOAB Version 4.9.1

Features

• PR #200: MOAB now supports auto-download and configuration/installation of several dependencies (HDF5, NetCDF and Metis/ParMetis) out of the box; Use configuration options:
  • --download-hdf5 --download-netcdf --download-metis etc
  • We plan to add support for more dependencies in future releases.
• PR #187: Removal qvdual tool from MOAB
• PR #218: Remove txt Reader/Writer support (this was an empty shell class)
• A configuration suggestion script (suggest_configuration.sh) is now part of MOAB repository.
  This script simplifies options to be used for new users and should work mostly!

Enhancements

• Better support for OSX, Linux and LCF systems
• PR #191: Improve augmenting ghost entities with set information (remove parallel and memory bottlenecks)
• PR #194: Generate Fortran prototypes during configuration directly (no auto-generation during build)
• PR #199: Enhanced support for dealing with polygons and polyhedra with added functionality for VTK and Exodus formats
• PR #202: AHF support for high-order elements
• PR #208: The debian support now includes Fortran and Metis dependencies

Fixes

• Several key fixes found through cppcheck and Coverity (static analysis tools)
• Improvements in both autotools and CMake configuration systems
• PR #214, #217: Core::connect_iterate works with non congruently allocated cells of same type.

MeshKit Version 1.4.1

Enhancements

• Added timing to AssyGen for CGM boolean operations.
• Improved CoreGen parallel save time, (deleting GEOM_DIMENSION tag before parallel save). Also , saving only Material and Neumann sets in the final mesh.3. Added PARALLEL_PARTITION tag to the
• Added support for HEX27 element creation in CoreGen. User may specify HEX8 or HEX27 in the input file.
• CoreGen keyword ‘MESHTOGEOM’ supported for CUBIT mesh files. A new tool mbmeshtogeom in MOAB can be used to compute MESHTOGEOM ratio on an already existing mesh file.

Fixes

• Bug in rectangular assembly orientation in AssyGen and CoreGen. The orientation is as it is described in the input file, instead of being mirrored.
• Linking issues on OSX.