AFEPack/ChangeLog at master · wangheyu/AFEPack · GitHub

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## ChangeLog

* Use the boost::iostream::filtering_istream to permit shell script style
  comments in the text library file in the template data. So for user please
  put boost to some directory can be found be the compiler!

* A bug in renumerateElement is corrected.

* Lasy mode is added to adapt the code for really large scale computation.
  Under such case, we only handle the node basis functions and the element
  image building is not implemented at all. The user should make the vertices
  of the element to be stored in correct order. In the class IrregularMesh,
  a method lazyRegularize is provided to generate a mesh only store the
  information of elements and nodes. Dirty tricks!

* Add the POSIX threads support. The support mainly includes the interface
  to call a member function or a non-member function by a new thread.
  Class ThreadManager will take care of the threads. Functions provided
  by POSIX thread library are still avaible in the thread functions. You
  should guarantee the code is thread safe yourself.

* Add the order-0 Raviart-Thomas element on rectangle and twin-triangle.

* in FEMFunction::writeEasyMeshData and FEMFunction::writeOpenDXData,
  the bug to save incorrect data when the nodes is not sorted is removed.

* class DBMesh is revised that the bug in setting boundary marker is
  removed.

* A serious bug removed from Element::buildGeometryImage.

* Rename the AMGSolver::init member function as AMGSolver::reinit which
  is more nature.

* Add the support to vector value basis function finite element space.
  This is a big upgrade of the whole library. A list of files are revised
  including TemplateElement, FEMSpace, BilinearOperator, etc. There is
  only one vector value template element in the library currently, which
  is the order-0 Raviart-Thomas element on triangles.


* A bug is removed from file Operator.template.h in function
        template <class value_type, int DIM>
        void Operator::L2Project(FEMFunction <value_type, DIM> & f0,
	                         FEMFunction <value_type, DIM> & f1,
                                 Method method,
                                 int algebric_accuracy);

* All examples are revised and a list of simple tools provided in the example
  directory.

* Add an example to solve a viscous Burgers equation using class MovingMesh.

* Modified the prototype of some member function of class AMGSolver,
  AMGOptimizer, AMGPreconditioner. The original ones have some problems
  in a "const" modifier.

* Debug the Makefile problem in directory "template".

* Add the mechenism to use Algebraic Multigrid Method as a pre-conditioner
  of the solvers in deal.II.

* Add the optimization mechenism for finite element space. With this
  mechenism, the efficiency of the numerical integration can be improved
  if it should be taken for more than one time because it can save the
  integration information in memory.

* Add the class DGFEMSpace to handle Discontinuous Garlerkin Finite
  Element Space.

* Add the class MovingMesh as the derivative class of Mesh which can
  be used as a general mesh while with a provided monitor, the mesh
  can move according the monitor.

* Since version 1.5, the package is planed to be released. The package
  now is comparative stable while there must be a lot of bugs still that
  it at most is an Alpha version. :-)