Libmesh 0.6.2 0.6.3 changelog

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The first release candidate of libMesh 0.6.3 is now available for download.

(Also available, a PDF version of the changelog.)

New features include:

  • Continuing experimental ParallelMesh development
  • More internal parallelization
  • Operator overloading on scalar/vector/tensor operations with mixed underlying types
  • Exception throwing, stack trace file output on errors
  • More norm options for some library methods
  • Better PETSc nonlinear solver integration
  • Better line search in libMesh NewtonSolver
  • You can now force LibMesh to use quadrature rules with positive weights
  • Grundmann-Moller quadrature rules
  • Changed/added quadrature rules for TRIs at almost every order, preferring rules with fewer points and positive weights
  • QMonomial quadrature class for cheaper integration rules for monomial/XYZ bases on QUADs
  • Recomputed Gauss and Jacobi quadrature rules out to 32 significant digits
  • Updated Exodus library
  • Expanded Exodus I/O support, including subdomain ids, multiple timesteps per file
  • Improved libMesh file formats
  • Assorted bug fixes, compatibility fixes, efficiency improvements

A few backwards-incompatible API changes have been made:

  • The macro error() has been replaced with libmesh_error() to avoid name conflicts, and internal assert() calls have been replaced by libmesh_assert() to enable exception-throwing and tracefile output on assertion failures.
  • The libMesh::init()/close() methods have been replaced by a libMeshInit object's constructor and destructor, to simplify application code slightly and to provide better cleanup behavior when an uncaught exception is thrown. The old methods are now deprecated and will eventually be removed.
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