Libmesh 0.6.2 0.6.3 changelog

From libMesh Wiki

Revision as of 15:53, 18 August 2008

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

(Also available, a PDF version.)

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The macro error() has been replaced with libmesh_error() to avoid name conflicts, and internal assert() calls have been replaced by libmesh_assert() to enable exception-throwing and tracefile output on assertion failures.

The libMesh::init()/close() methods have been replaced by a libMeshInit object's constructor and destructor, to simplify application code slightly and to provide better cleanup behavior when an uncaught exception is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.