OpenMC version 0.6.2

Hi all,

The OpenMC development team is proud to announce the release of version 0.6.2. This release includes various new features and bug fixes added over the past four months.

New features in version 0.6.2 include:

  • Meshline plotting capability
  • Support for plotting cells/materials on middle universe levels
  • Ability to model cells with no surfaces
  • Compatibility with PETSc 3.5
  • Compatability with OpenMPI 1.7/1.8
  • Improved overall performance via logarithmic-mapped energy grid search
  • Improved multi-threaded performance with atomic operations
  • Support for fixed source problems with fissionable materials
    Bug fixes include:
  • Fix problem with -t, --track command-line flag
  • Improved evaporation spectrum algorithm
  • Fix segfault when tallying in a void material
  • Handle metastable nuclides in NNDC data and multiplicities in MT=5 data
    I’d like to thank Bryan Herman, Adam Nelson, Jon Walsh, Sterling Harper, Will Boyd, Nick Horelik, Matt Ellis, John Xia, and Anton Leontiev for their contributions to this release. The source code can be downloaded at or the master branch on the GitHub Repository.

Best regards,