--- /dev/null
+/**
+ * @page changes_between_6_3_and_7_0 Changes between Version 6.3 and 7.0
+
+<p>
+This is the list of changes made between the release of
+deal.II version 6.3.0 and that of version 7.0.0. It is subdivided into changes
+made to the three sub-libraries <a href="#base">base</a>,
+<a href="#lac">lac</a>, and <a href="#deal.II">deal.II</a>, as well as
+changes to the <a href="#general">general infrastructure,
+documentation, etc</a>.
+</p>
+
+<p>
+All entries are signed with the names of the author. Regular
+contributor's names are abbreviated by WB (Wolfgang Bangerth), GK
+(Guido Kanschat), RH (Ralf Hartmann).
+</p>
+
+
+<a name="incompatible"></a>
+<h3 style="color:red">Incompatibilities</h3>
+
+<p style="color:red">
+Following are a few modifications to the library that unfortunately
+are incompatible with previous versions of the library, but which we
+deem necessary for the future maintainability of the
+library. Unfortunately, some of these changes will require
+modifications to application programs. We apologize for the
+inconvenience this causes.
+</p>
+
+<ol>
+
+<li> The public member variable Quadrature::n_quadrature_points has
+been removed after being deprecated for nearly three
+years. Quadrature.size() replaces its function, and the new version
+more naturally preserves consistency.
+<br>
+(GK 2010/11/11)
+</li>
+
+<li>
+ deal.II has had a somewhat quirky directory and library structure for
+ historical reasons, but this has now changed: All include and source
+ files are now under the top-level <code>include/</code>
+ and <code>source</code> directories. Furthermore, we no longer build a
+ plethora of libraries but only <code>libdeal_II.g.so</code> (debug
+ version) and <code>libdeal_II.so</code> (optimized version). In
+ particular, we no longer build different versions of the library for
+ different space dimensions.
+ <br>
+ As a consequence, if your makefile makes any assumption on the
+ location of deal.II include files or the name of the deal.II library
+ it will need to be changed. The <a
+ href="../../development/makefiles.html">sample Makefiles</a> have been
+ updated for this.
+ <br>
+ (WB 2010/10/25)
+ </li>
+
+<li> The <code>Polynomials::Lagrange::generate_complete_basis</code>
+function has been renamed to Polynomials::generate_complete_Lagrange_basis .
+The function was previously the only member of a class, and a static
+one on top of that, which did not make much sense.
+<br>
+(WB 2010/10/22)</li>
+
+<li> The <code>QGauss2, QGauss3, ..., QGauss7</code> classes — deprecated
+for more than 6 years already — have finally been removed.
+You should use code like <code>QGauss@<dim@>(4)</code> instead.
+<br>
+(WB 2010/09/19)</li>
+
+
+<li> The FE_Nedelec class had previously implemented the lowest order
+when the value 1 was passed to the constructor. This has now been
+adjusted: the lowest order now results from passing 0, making this
+consistent with the FE_RaviartThomas class and following the convention
+used in by Brezzi and Raviart (though not in the original paper of
+Nedelec).
+<br>
+(Markus Bürg 2010/09/14)</li>
+
+<li> The fields DoFHandler::tria and DoFHandler::selected_fe are now
+private instead of protected. Inheriting classes can only access them
+through DoFHandler::get_tria() and DoFHandler::get_fe(), respectively.
+<br>
+(GK 2010/08/16)</li>
+
+</ol>
+
+
+<a name="general"></a>
+<h3>General</h3>
+
+<ol>
+ <li><p>New: The new step-38 program shows how to discretize and solve
+ partial differential equations posed on curved manifolds embedded in
+ higher dimensional spaces.
+ <br>
+ (Andrea Bonito, M. Sebastian Pauletti, 2011/01/02)
+ </p></li>
+
+ <li><p>New: deal.II now has a Qt based graphical user interface to edit
+ input parameter files for the ParameterHandler class. The executable is
+ located in <code>lib/bin/dealii_parameter_gui</code>.
+ <br>
+ (Martin Steigemann, 2010/12/20)
+ </p></li>
+
+ <li><p>New: A significant number of classes, primarily in the
+ <code>base/</code> subdirectory, now provide the necessary member functions
+ for serialization through BOOST's serialization library.
+ <br>
+ (Pradeep Rao, WB, 2010/12/06)
+ </p></li>
+
+ <li><p>Fixed: A good number of problems associated with meshes that are
+ embedded in a higher space dimension (i.e. where <code>dim @< spacedim</code>)
+ are now fixed.
+ <br>
+ (Sebastian Pauletti, Andrea Bonito, Luca Heltai, WB, 2010/12/06)
+ </p></li>
+
+ <li><p>Updated: The version of the <a href="http://www.threadingbuildingblocks.org">Threading
+ Building Blocks (TBB)</a> shipped with deal.II has been updated
+ to release 3.0 Update 3 (Commercially aligned version).
+ <br>
+ (WB, 2010/11/18)
+ </p></li>
+
+ <li><p>New: While 2d and 3d could mostly be handled with the
+ same code, dimension-independent programming was always a bit
+ different because the faces of 1d cells (i.e. vertices) did not
+ have appropriate iterators defined. This has now been changed:
+ there is now a class TriaAccessor<0,1,spacedim> (and corresponding
+ DoFAccessor<0,DH>) that allows to write things like
+ @code
+ cell->face(0)->boundary_indicator();
+ cell->face(1)->at_boundary();
+ cell->face(1)->get_dof_indices(...);
+ @endcode
+ even if the cell corresponds to a one-dimensional triangulation where
+ this was not previously possible.
+ <br>
+ (WB, 2010/11/11)
+ </p></li>
+
+ <li>
+ <p>New: After more than 2 years of work, we have merged a branch on which
+ we have implemented the functionality necessary to distribute meshes on
+ hundreds, thousands, or more processors. An overview of the framework
+ in which this is implemented is presented in the @ref distributed module,
+ the @ref distributed_paper, as well as in step-40.
+ <br>
+ (Timo Heister, Martin Kronbichler, Wolfgang Bangerth 2010/10/23)
+ </p>
+
+ <li>
+ <p>New: Documentation of how to handle constraints on degrees of freedom
+ has been centralized in a new documentation module on @ref constraints.
+ <br>
+ (WB 2010/09/16)
+ </p>
+
+ <li>
+ <p>Fixed: When using Trilinos and deal.II both with static libraries,
+ a linker error would occur whenever a program linked both the 2d and
+ 3d libraries of deal.II. This is now fixed.
+ <br>
+ (WB 2010/07/23)
+ </p>
+
+ <li>
+ <p>Fixed: On all non-linux platforms, if static libraries were selected
+ and <code>./configure</code> was instructed to use Trilinos (which also
+ was compiled with static libraries), a failure would occur. This should
+ now be fixed.
+ <br>
+ (WB 2010/07/23)
+ </p>
+
+ <li>
+ <p>Fixed: The step-33 tutorial program can not be built with GCC versions
+ 4.5.x. There are in fact two problems, one that pertains to uses of
+ <code>std::make_pair</code> that don't work any more with the upcoming
+ C++ 1x standard that GCC 4.5.x already follows, and some in which the
+ Trilinos package Sacado is incompatible with GCC 4.5.x, at least up to
+ Trilinos version 10.4.0. While the latter problem can only be fixed in
+ future Trilinos versions, at least the former problem is solved in step-33.
+ <br>
+ (WB 2010/07/18)
+ </p>
+
+ <li>
+ <p>Fixed: GCC version 3.4.0 failed to compile the file
+ <code>deal.II/source/numerics/matrices.cc</code> with
+ an internal compiler error. This has
+ now been worked around.
+ <br>
+ (WB 2010/07/15)
+ </p>
+
+ <li>
+ <p>Fixed: A problem in the Makefiles caused error messages when
+ building under CygWin.
+ <br>
+ (GK 2010/07/12)
+ </p>
+
+ <li>
+ <p>Fixed: GCC version 3.3.x failed to compile the files
+ <code>lac/include/lac/precondition_block.h</code>,
+ <code>deal.II/source/multigrid/mg_dof_handler.cc</code> and
+ <code>examples/step-34/step-34.cc</code>. These problems have
+ now been worked around.
+ <br>
+ (WB 2010/07/12)
+ </p>
+
+ <li>
+ <p>Fixed: Some older 3.x versions of GCC crashed compiling the functions in
+ namespace DoFRenumbering::boost. There is now a configuration time test
+ that checks that the compiler accepts the constructs in question. If the
+ compiler does not, then these functions are disabled.
+ <br>
+ (WB 2010/07/01)
+ </p>
+
+ <li>
+ <p>Fixed: Linking with more than one of the deal.II 1d, 2d, or 3d libraries
+ when using static libraries did not work. This is now fixed. However, due to
+ GCC bug <a href="http://gcc.gnu.org/bugzilla/show_bug.cgi?id=10591"
+ target="_top">10591</a>, GCC versions prior to and including 4.1.x will
+ still not work. Working with shared libraries was not and is not affected
+ by this problem.
+ <br>
+ (WB 2010/07/01)
+ </p>
+
+ <li>
+ <p>Updated: The version of <a href="http://www.boost.org/">boost</a>
+ included in the <code>contrib/</code> directory has been updated
+ to 1.43.0.
+ <br>
+ (WB 2010/06/30)
+ </p>
+
+ <li>
+ <p>Fixed: GCC version 4.0.1 had a bug that prevented it from compiling
+ release 6.3.0 because it apparently had an infinite loop allocating
+ memory when compiling <code>fe_values.cc</code> in optimized mode. This
+ problem had been fixed in GCC 4.0.2, but some versions of Mac OS X still use
+ this GCC version in their Xcode environment. In any case, the code in
+ deal.II has been changed to avoid this problem.
+ <br>
+ (WB 2010/06/30)
+ </p>
+
+ <li>
+ <p>Fixed: Configuring with an external BOOST version did not work when
+ using shared libraries since the test ran in the wrong order with respect
+ to another configure test. This is now fixed.
+ <br>
+ (Bradley Froehle 2010/06/29)
+ </p>
+
+ <li>
+ <p>Updated: The conversion tool in <code>contrib/mesh_conversion</code> that
+ can read CUBIT output and convert it into something that is readable by
+ deal.II has been updated.
+ <br>
+ (Jean-Paul Pelteret 2010/06/28)
+ </p>
+
+ <li>
+ <p>
+ Fixed: deal.II release 6.3.0 did not compile with Trilinos versions 9.x and
+ 10.0. This is now fixed.
+ <br>
+ (Martin Kronbichler, WB 2010/06/28)
+ </p>
+</ol>
+
+
+
+<a name="base"></a>
+<h3>base</h3>
+
+
+<ol>
+
+<li> A static member function Point::unit_vector() has been introduced
+to simplify the task of creating a vector in one coordinate direction
+independent of the dimension.
+<br>
+(GK 2010/11/17)
+</li>
+
+<li><p> There are now Patterns::FileName and Patterns::DirectoryName classes
+ that can be used to indicate that a given parameter is supposed to be
+ a file or directory name.
+ <br>
+ (Martin Steigemann 2010/10/25)
+ </p>
+
+ <li><p> New: The ParameterHandler class is now built on the
+ <a href="http://www.boost.org" target="_top">boost</a>
+ <code>property_tree</code> library which provides a much better
+ foundation for extensions. In particular, the description of parameters
+ can now be exported in XML and JSON formats for processing with external
+ programs, for example graphical user interfaces. As a consequence of
+ the re-write, a bug in ParameterHandler::print_parameters_section
+ was fixed when using the LaTeX output format.
+ <br>
+ (WB 2010/09/09)
+ </p>
+
+ <li><p> Fixed: The ParameterHandler::set() functions allowed to set values that
+ did not satisfy the pattern given during declaration of the parameter. This
+ is now fixed: the functions now throw an exception.
+ <br>
+ (WB 2010/09/09)
+ </p>
+
+ <li><p> Fixed: The Patterns::Integer and Patterns::Double classes did
+ not properly check that a value given matched the pattern because they
+ ignored text after an initial match. This led to <code>"3.141"</code> and
+ <code>"3.141..,-RXYZ"</code> to be recognized as valid integers and
+ double values, respectively. This is now fixed.
+ <br>
+ (WB 2010/09/08)
+ </p>
+
+ <li><p> Fixed: The computation of quadrature points in the QGaussLobatto
+ class uses a Newton method that was wrongly implemented. While the
+ results were correct (at least for moderate orders), it required more
+ iterations than necessary. This is now fixed.
+ <br>
+ (Andrea Bonito 2010/08/12)
+ </p>
+
+ <li><p> Changed: The DataOutBase::write_vtu function now writes data
+ as 64-bit values, rather than 32-bit values.
+ <br>
+ (Scott Miller 2010/08/5)
+ </p>
+
+ <li><p> New: MappingQ and MappingQEulerian now support order > 1 also in
+ codimension one. Step-34 has been modified to show how this works.
+ <br>
+ (Luca Heltai 2010/07/23-27)
+ </p>
+
+ <li><p> New: QGaussOneOverR now has a new constructor for arbitrary quadrature
+ points and not only the vertices of the reference cell.
+ <br>
+ (Luca Heltai 2010/07/21)
+ </p>
+</ol>
+
+
+<a name="lac"></a>
+<h3>lac</h3>
+
+<ol>
+ <li><p>New: Added a new constructor for PETScWrappers::Vector that takes
+ an existing PETSc Vec that was created by the user and is only wrapped for
+ usage.
+ <br>
+ (TH, 2010/12/03)
+ </p></li>
+
+ <li><p>New: When Hypre is available as a sub-package of PETSc, the new class
+ PETScWrappers::PreconditionBoomerAMG provides the BoomerAMG implementation
+ of the algebraic multigrid method of the Hypre package as a preconditioner.
+ This functionality is used, for example, in step-40.
+ <br>
+ (Timo Heister 2010/11/13)
+ </p></li>
+
+ <li><p>New: The class LAPACKFullMatrix now has functions to compute the
+ singular value decomposition of a matrix and its inverse.
+ <br>
+ (GK 2010/11/7)
+ </p></li>
+
+ <li><p>New: The classes RelaxationBlockSOR and RelaxationBlockSSOR
+ implement overlapping Schwarz relaxation methods. Additionally,
+ their base class RelaxationBlock and the helper class BlockList have
+ been added to the library.
+ <br>
+ (GK 2010/10/19)
+ </p></li>
+
+ <li><p>Improved: The ConstraintMatrix::merge function now takes a second
+ argument that indicates what should happen if the two objects to be
+ merged have constraints on the very same degree of freedom.
+ <br>
+ (WB 2010/09/18)
+ </p></li>
+
+ <li><p>Updated: Changes to the <code>SLEPcWrappers</code> to preserve
+ compatibility with SLEPc version 3.1. Main new updated features are
+ new solver classes: (i) Power; and (ii) Generalized Davidson.
+ <br>
+ (Toby D. Young 2010/08/04)
+ </p></li>
+
+ <li><p>Fixed: SparseMatrix::precondition_SSOR and
+ SparseMatrixEZ::precondition_SSOR had a bug, which made the SSOR
+ method inaccurate for relaxation parameters different from unity.
+ <br>
+ (GK 2010/07/20)
+ </p></li>
+</ol>
+
+
+
+<a name="deal.II"></a>
+<h3>deal.II</h3>
+
+<ol>
+ <li><p>New: The GridTools::transform function used to work only on
+ meshes that are not refined at all. It now also works on meshes
+ that have been refined uniformly, though not on adaptively refined
+ ones.
+ <br>
+ (WB, 2010/12/20)
+ </p></li>
+
+ <li><p>New: When computing errors using
+ VectorTools::integrate_difference in codimension one problems, if
+ you specified a norm that requires the computation of the gradients,
+ you would get in trouble, because on codimension one manifolds we only
+ have information on the <em>tangential</em> gradient. This is now
+ fixed, by discarding the normal component of the provided function,
+ before computing the difference with the finite element function.
+ <br>
+ (Luca Heltai, 2010/12/05)
+ </p></li>
+
+ <li><p>New: The VectorTools::interpolate_boundary_values function can now
+ also be used to interpolate boundary values on meshes embedded in a higher
+ dimensional space.
+ <br>
+ (WB, 2010/11/20)
+ </p></li>
+
+ <li><p>Fixed: Triangulation::execute_coarsening_and_refinement misplaced
+ the new central vertex of a quad in a two-dimensional mesh embedded into
+ higher dimensional space if said quad was at the boundary of the surface
+ described by this triangulation. This is now fixed.
+ <br>
+ (WB, 2010/11/18)
+ </p></li>
+
+ <li><p>New: The GridTools::extract_boundary_mesh function can be used to
+ generate a surface mesh from the boundary of a volume mesh.
+ <br>
+ (Sebastian Pauletti, 2010/11/15)
+ </p></li>
+
+ <li><p>Fixed: For DoF iterators, it was previously possible to write
+ code like <code>*it1 = *it2</code>, presumably with the intent to
+ copy the entire cell pointed to on the right hand side onto the cell
+ pointed to at the left. However, this is not what happens since
+ iterators are not pointers but only point to accessor classes. The
+ assignment operator has therefore been removed.
+ <br>
+ (WB, 2010/11/12)
+ </p></li>
+
+ <li><p>New: The GridOut::write_gnuplot function now also works for meshes
+ that are embedded in a higher
+ dimensional space (i.e. if the codimension was greater than 1).
+ <br>
+ (WB, 2010/11/03)
+ </p></li>
+
+ <li><p>New: The class hp::FEFaceValues and hp::FESubfaceValues were not
+ previously available for meshes that were embedded in a higher
+ dimensional space (i.e. if the codimension was greater than 1). This is
+ now fixed. As a consequence, the VectorTools::interpolate_boundary_values
+ function is now also available for such meshes.
+ <br>
+ (WB, 2010/11/02)
+ </p></li>
+
+ <li><p>Fixed: The FEValuesExtractors::Vector class did not work when the dimension
+ of the domain was not equal to the dimension of the space in which it is
+ embedded. This is now fixed.
+ <br>
+ (Sebastian Pauletti, WB, 2010/11/01)
+ </p></li>
+
+ <li><p>Fixed: The methods VectorTools::project_boundary_values_curl_conforming
+ set the boundary values now also H(curl)-conforming, when hanging node
+ constraints are present.
+ <br>
+ (Markus Buerg, 2010/10/11)
+ </p></li>
+
+ <li><p>Changed: The DataPostprocessor functions now take an additional
+ argument that indicates the location of an evaluation point. For backward
+ compatibility, the old function signature still exists so that applications
+ that overload one of the existing functions continue to work.
+ The old signature has been deprecated, however, and will be removed in a
+ future version.
+ <br>
+ (Scott Miller 2010/10/08)
+ </p></li>
+
+ <li><p>Changed: FETools is now a namespace rather than a class with only
+ static member functions.
+ <br>
+ (WB 2010/09/25)
+ </p></li>
+
+ <li><p>New: FE_DGVector implements discontinuous elements based on
+ vector valued polynomial spaces.
+ <br>
+ (GK 2010/09/17)
+ </p></li>
+
+ <li>
+ <p>
+ Fixed: The methods VectorTools::interpolate_boundary_values and
+ VectorTools::project_boundary_values with ConstraintMatrix argument added
+ inhomogeneities also to DoFs that were already constrained when entering the
+ call without changing the list of DoFs that those were constrained to. This
+ leads to wrong results for inhomogeneous constraints in case e.g.
+ DoFTools::make_hanging_node_constraints was called before. Now, the correct
+ way for combining hanging node constraints and Dirichlet conditions in one
+ ConstraintMatrix is to first make the hanging node constraints, and then
+ interpolate/project the boundary values. The latter operation will then
+ simply not add any new constraints if a DoF is already constrained. The
+ same is also true for VectorTools::compute_no_normal_flux_constraints.
+ <br>
+ (Luca Heltai, Martin Kronbichler, WB 2010/09/16)
+ </p>
+
+ <li>
+ <p>
+ Fixed: The method FEValuesViews::Vector::curl aborted the program in 2d under certain
+ circumstances. This is now fixed.
+ <br>
+ (Andrea Bonito, WB 2010/09/14)
+ </p>
+
+ <li><p>Improved: MeshWorker::loop() now uses WorkStream for multithreading
+ <br>
+ (GK 2010/09/10)
+ </p>
+
+ <li>
+ <p>
+ Fixed: The method FEValuesViews::SymmetricTensor< 2, dim, spacedim >::get_function_divergences
+ incorrectly calculated the divergence.
+ <br>
+ (Andrew McBride 2010/09/09)
+ </p>
+
+ <li>
+ <p>
+ New: Reimplementation of the parent function in the various DoFCellAccessors so
+ that one can call the parent function from a DoFIterator and also gets a
+ DoFIterator returned.
+ <br>
+ (Markus Buerg 2010/08/30)
+ </p>
+
+ <li>
+ <p>
+ New: FETools::compute_embedding_matrices now computes the embedding matrix
+ for all refinement cases in parallel.
+ <br>
+ (Markus Buerg 2010/08/26)
+ </p>
+
+ <li>
+ <p>
+ New: There is now a function CellAccessor::parent so that one can do
+ <code>cell-@>parent()</code>
+ <br>
+ (Markus Buerg 2010/08/26)
+ </p>
+
+ <li>
+ <p>
+ Improved: DoFHandler has a default constructor, so that it can be used in containers.
+ <br>
+ (GK 2010/08/16)
+ </p>
+
+ <li>
+ <p>
+ New: The functions VectorTools::project_boundary_values_curl_conforming
+ are added. They can compute Dirichlet boundary conditions for Nedelec
+ elements.
+ <br>
+ (Markus Buerg 2010/08/13)
+ </p>
+
+ <li>
+ <p>
+ Fixed: The function FEValuesViews::Vector::get_function_curls produced
+ wrong results in some cases, because it erased the given vector first.
+ This is now fixed.
+ <br>
+ (Markus Buerg 2010/08/13)
+ </p>
+
+ <li>
+ <p>
+ New: Ability to project second-order SymmetricTensor and first-order Tensor objects from the quadrature points to the support points of the cell using FETools::compute_projection_from_quadrature_points
+ <br>
+ (Andrew McBride 2010/07/29)
+ </p>
+
+ <li>
+ <p>
+ Fixed: In some rather pathological cases, the function
+ Triangulation::prepare_coarsening_and_refinement (which is called from
+ Triangulation::execute_coarsening_and_refinement) could take very long
+ if the flag Triangulation::eliminate_unrefined_islands was given in
+ the mesh smoothing flags upon construction of the triangulation. This is
+ now fixed.
+ <br>
+ (WB 2010/07/27)
+ </p>
+
+ <li><p> New: Brezzi-Douglas-Marini elements of arbitrary order in FE_BDM.
+ <br>
+ (GK 2010/07/19)
+ </p>
+
+ <li>
+ <p>
+ Fixed: The FEValues::get_cell() function was unusable from user code
+ since its implementation used a class that was only forward declared
+ and not visible at the point of instantiations in user code. This is now
+ fixed.
+ <br>
+ (WB 2010/07/16)
+ </p>
+
+ <li>
+ <p>New: The multilevel matrices for continuous elements
+ can be built with the MeshWorker now.
+ <br>
+ (Bärbel Janssen 2010/07/01)
+ </p></li>
+
+ <li>
+ <p>
+ Fixed: On some systems and compilers, the library could not be compiled
+ because of a duplicate symbol in <code>MeshWorker::LocalResults</code>.
+ This is now fixed.
+ <br>
+ (WB 2010/06/28)
+ </p>
+
+ <li>
+ <p>
+ Fixed: The output of the function
+ FE_Q::adjust_quad_dof_index_for_face_orientation
+ was wrong in 3d for polynomial orders of three or greater. This is now
+ fixed.
+ <br>
+ (WB 2010/06/28)
+ </p>
+</ol>
+
+
+*/
/**
- * @page changes_after_6_3 Changes after Version 6.3
+ * @page changes_after_7_0 Changes after Version 7.0
<p>
This is the list of changes made after the release of
-deal.II version 6.3.0. It is subdivided into changes
-made to the three sub-libraries <a href="#base">base</a>,
-<a href="#lac">lac</a>, and <a href="#deal.II">deal.II</a>, as well as
-changes to the <a href="#general">general infrastructure,
-documentation, etc</a>.
-</p>
-
-<p>
+deal.II version 7.0.0.
All entries are signed with the names of the author. Regular
contributor's names are abbreviated by WB (Wolfgang Bangerth), GK
(Guido Kanschat), RH (Ralf Hartmann).
</p>
<ol>
-
-<li> The public member variable Quadrature::n_quadrature_points has
-been removed after being deprecated for nearly three
-years. Quadrature.size() replaces its function, and the new version
-more naturally preserves consistency.
-<br>
-(GK 2010/11/11)
-</li>
-
-<li>
- deal.II has had a somewhat quirky directory and library structure for
- historical reasons, but this has now changed: All include and source
- files are now under the top-level <code>include/</code>
- and <code>source</code> directories. Furthermore, we no longer build a
- plethora of libraries but only <code>libdeal_II.g.so</code> (debug
- version) and <code>libdeal_II.so</code> (optimized version). In
- particular, we no longer build different versions of the library for
- different space dimensions.
- <br>
- As a consequence, if your makefile makes any assumption on the
- location of deal.II include files or the name of the deal.II library
- it will need to be changed. The <a
- href="../../development/makefiles.html">sample Makefiles</a> have been
- updated for this.
- <br>
- (WB 2010/10/25)
- </li>
-
-<li> The <code>Polynomials::Lagrange::generate_complete_basis</code>
-function has been renamed to Polynomials::generate_complete_Lagrange_basis .
-The function was previously the only member of a class, and a static
-one on top of that, which did not make much sense.
-<br>
-(WB 2010/10/22)</li>
-
-<li> The <code>QGauss2, QGauss3, ..., QGauss7</code> classes — deprecated
-for more than 6 years already — have finally been removed.
-You should use code like <code>QGauss@<dim@>(4)</code> instead.
-<br>
-(WB 2010/09/19)</li>
-
-
-<li> The FE_Nedelec class had previously implemented the lowest order
-when the value 1 was passed to the constructor. This has now been
-adjusted: the lowest order now results from passing 0, making this
-consistent with the FE_RaviartThomas class and following the convention
-used in by Brezzi and Raviart (though not in the original paper of
-Nedelec).
-<br>
-(Markus Bürg 2010/09/14)</li>
-
-<li> The fields DoFHandler::tria and DoFHandler::selected_fe are now
-private instead of protected. Inheriting classes can only access them
-through DoFHandler::get_tria() and DoFHandler::get_fe(), respectively.
-<br>
-(GK 2010/08/16)</li>
-
+ <li>
</ol>
<h3>General</h3>
<ol>
- <li><p>New: The new step-38 program shows how to discretize and solve
- partial differential equations posed on curved manifolds embedded in
- higher dimensional spaces.
- <br>
- (Andrea Bonito, M. Sebastian Pauletti, 2011/01/02)
- </p></li>
-
- <li><p>New: deal.II now has a Qt based graphical user interface to edit
- input parameter files for the ParameterHandler class. The executable is
- located in <code>lib/bin/dealii_parameter_gui</code>.
- <br>
- (Martin Steigemann, 2010/12/20)
- </p></li>
-
- <li><p>New: A significant number of classes, primarily in the
- <code>base/</code> subdirectory, now provide the necessary member functions
- for serialization through BOOST's serialization library.
- <br>
- (Pradeep Rao, WB, 2010/12/06)
- </p></li>
-
- <li><p>Fixed: A good number of problems associated with meshes that are
- embedded in a higher space dimension (i.e. where <code>dim @< spacedim</code>)
- are now fixed.
- <br>
- (Sebastian Pauletti, Andrea Bonito, Luca Heltai, WB, 2010/12/06)
- </p></li>
-
- <li><p>Updated: The version of the <a href="http://www.threadingbuildingblocks.org">Threading
- Building Blocks (TBB)</a> shipped with deal.II has been updated
- to release 3.0 Update 3 (Commercially aligned version).
- <br>
- (WB, 2010/11/18)
- </p></li>
-
- <li><p>New: While 2d and 3d could mostly be handled with the
- same code, dimension-independent programming was always a bit
- different because the faces of 1d cells (i.e. vertices) did not
- have appropriate iterators defined. This has now been changed:
- there is now a class TriaAccessor<0,1,spacedim> (and corresponding
- DoFAccessor<0,DH>) that allows to write things like
- @code
- cell->face(0)->boundary_indicator();
- cell->face(1)->at_boundary();
- cell->face(1)->get_dof_indices(...);
- @endcode
- even if the cell corresponds to a one-dimensional triangulation where
- this was not previously possible.
- <br>
- (WB, 2010/11/11)
- </p></li>
-
- <li>
- <p>New: After more than 2 years of work, we have merged a branch on which
- we have implemented the functionality necessary to distribute meshes on
- hundreds, thousands, or more processors. An overview of the framework
- in which this is implemented is presented in the @ref distributed module,
- the @ref distributed_paper, as well as in step-40.
- <br>
- (Timo Heister, Martin Kronbichler, Wolfgang Bangerth 2010/10/23)
- </p>
-
- <li>
- <p>New: Documentation of how to handle constraints on degrees of freedom
- has been centralized in a new documentation module on @ref constraints.
- <br>
- (WB 2010/09/16)
- </p>
-
<li>
- <p>Fixed: When using Trilinos and deal.II both with static libraries,
- a linker error would occur whenever a program linked both the 2d and
- 3d libraries of deal.II. This is now fixed.
- <br>
- (WB 2010/07/23)
- </p>
-
- <li>
- <p>Fixed: On all non-linux platforms, if static libraries were selected
- and <code>./configure</code> was instructed to use Trilinos (which also
- was compiled with static libraries), a failure would occur. This should
- now be fixed.
- <br>
- (WB 2010/07/23)
- </p>
-
- <li>
- <p>Fixed: The step-33 tutorial program can not be built with GCC versions
- 4.5.x. There are in fact two problems, one that pertains to uses of
- <code>std::make_pair</code> that don't work any more with the upcoming
- C++ 1x standard that GCC 4.5.x already follows, and some in which the
- Trilinos package Sacado is incompatible with GCC 4.5.x, at least up to
- Trilinos version 10.4.0. While the latter problem can only be fixed in
- future Trilinos versions, at least the former problem is solved in step-33.
- <br>
- (WB 2010/07/18)
- </p>
-
- <li>
- <p>Fixed: GCC version 3.4.0 failed to compile the file
- <code>deal.II/source/numerics/matrices.cc</code> with
- an internal compiler error. This has
- now been worked around.
- <br>
- (WB 2010/07/15)
- </p>
-
- <li>
- <p>Fixed: A problem in the Makefiles caused error messages when
- building under CygWin.
- <br>
- (GK 2010/07/12)
- </p>
-
- <li>
- <p>Fixed: GCC version 3.3.x failed to compile the files
- <code>lac/include/lac/precondition_block.h</code>,
- <code>deal.II/source/multigrid/mg_dof_handler.cc</code> and
- <code>examples/step-34/step-34.cc</code>. These problems have
- now been worked around.
- <br>
- (WB 2010/07/12)
- </p>
-
- <li>
- <p>Fixed: Some older 3.x versions of GCC crashed compiling the functions in
- namespace DoFRenumbering::boost. There is now a configuration time test
- that checks that the compiler accepts the constructs in question. If the
- compiler does not, then these functions are disabled.
- <br>
- (WB 2010/07/01)
- </p>
-
- <li>
- <p>Fixed: Linking with more than one of the deal.II 1d, 2d, or 3d libraries
- when using static libraries did not work. This is now fixed. However, due to
- GCC bug <a href="http://gcc.gnu.org/bugzilla/show_bug.cgi?id=10591"
- target="_top">10591</a>, GCC versions prior to and including 4.1.x will
- still not work. Working with shared libraries was not and is not affected
- by this problem.
- <br>
- (WB 2010/07/01)
- </p>
-
- <li>
- <p>Updated: The version of <a href="http://www.boost.org/">boost</a>
- included in the <code>contrib/</code> directory has been updated
- to 1.43.0.
- <br>
- (WB 2010/06/30)
- </p>
-
- <li>
- <p>Fixed: GCC version 4.0.1 had a bug that prevented it from compiling
- release 6.3.0 because it apparently had an infinite loop allocating
- memory when compiling <code>fe_values.cc</code> in optimized mode. This
- problem had been fixed in GCC 4.0.2, but some versions of Mac OS X still use
- this GCC version in their Xcode environment. In any case, the code in
- deal.II has been changed to avoid this problem.
- <br>
- (WB 2010/06/30)
- </p>
-
- <li>
- <p>Fixed: Configuring with an external BOOST version did not work when
- using shared libraries since the test ran in the wrong order with respect
- to another configure test. This is now fixed.
- <br>
- (Bradley Froehle 2010/06/29)
- </p>
-
- <li>
- <p>Updated: The conversion tool in <code>contrib/mesh_conversion</code> that
- can read CUBIT output and convert it into something that is readable by
- deal.II has been updated.
- <br>
- (Jean-Paul Pelteret 2010/06/28)
- </p>
-
- <li>
- <p>
- Fixed: deal.II release 6.3.0 did not compile with Trilinos versions 9.x and
- 10.0. This is now fixed.
- <br>
- (Martin Kronbichler, WB 2010/06/28)
- </p>
</ol>
-<a name="base"></a>
-<h3>base</h3>
+<a name="specific"></a>
+<h3>Specific improvements</h3>
<ol>
-
-<li> A static member function Point::unit_vector() has been introduced
-to simplify the task of creating a vector in one coordinate direction
-independent of the dimension.
-<br>
-(GK 2010/11/17)
-</li>
-
-<li><p> There are now Patterns::FileName and Patterns::DirectoryName classes
- that can be used to indicate that a given parameter is supposed to be
- a file or directory name.
- <br>
- (Martin Steigemann 2010/10/25)
- </p>
-
- <li><p> New: The ParameterHandler class is now built on the
- <a href="http://www.boost.org" target="_top">boost</a>
- <code>property_tree</code> library which provides a much better
- foundation for extensions. In particular, the description of parameters
- can now be exported in XML and JSON formats for processing with external
- programs, for example graphical user interfaces. As a consequence of
- the re-write, a bug in ParameterHandler::print_parameters_section
- was fixed when using the LaTeX output format.
- <br>
- (WB 2010/09/09)
- </p>
-
- <li><p> Fixed: The ParameterHandler::set() functions allowed to set values that
- did not satisfy the pattern given during declaration of the parameter. This
- is now fixed: the functions now throw an exception.
- <br>
- (WB 2010/09/09)
- </p>
-
- <li><p> Fixed: The Patterns::Integer and Patterns::Double classes did
- not properly check that a value given matched the pattern because they
- ignored text after an initial match. This led to <code>"3.141"</code> and
- <code>"3.141..,-RXYZ"</code> to be recognized as valid integers and
- double values, respectively. This is now fixed.
- <br>
- (WB 2010/09/08)
- </p>
-
- <li><p> Fixed: The computation of quadrature points in the QGaussLobatto
- class uses a Newton method that was wrongly implemented. While the
- results were correct (at least for moderate orders), it required more
- iterations than necessary. This is now fixed.
- <br>
- (Andrea Bonito 2010/08/12)
- </p>
-
- <li><p> Changed: The DataOutBase::write_vtu function now writes data
- as 64-bit values, rather than 32-bit values.
- <br>
- (Scott Miller 2010/08/5)
- </p>
-
- <li><p> New: MappingQ and MappingQEulerian now support order > 1 also in
- codimension one. Step-34 has been modified to show how this works.
- <br>
- (Luca Heltai 2010/07/23-27)
- </p>
-
- <li><p> New: QGaussOneOverR now has a new constructor for arbitrary quadrature
- points and not only the vertices of the reference cell.
- <br>
- (Luca Heltai 2010/07/21)
- </p>
-</ol>
-
-
-<a name="lac"></a>
-<h3>lac</h3>
-
-<ol>
- <li><p>New: Added a new constructor for PETScWrappers::Vector that takes
- an existing PETSc Vec that was created by the user and is only wrapped for
- usage.
- <br>
- (TH, 2010/12/03)
- </p></li>
-
- <li><p>New: When Hypre is available as a sub-package of PETSc, the new class
- PETScWrappers::PreconditionBoomerAMG provides the BoomerAMG implementation
- of the algebraic multigrid method of the Hypre package as a preconditioner.
- This functionality is used, for example, in step-40.
- <br>
- (Timo Heister 2010/11/13)
- </p></li>
-
- <li><p>New: The class LAPACKFullMatrix now has functions to compute the
- singular value decomposition of a matrix and its inverse.
- <br>
- (GK 2010/11/7)
- </p></li>
-
- <li><p>New: The classes RelaxationBlockSOR and RelaxationBlockSSOR
- implement overlapping Schwarz relaxation methods. Additionally,
- their base class RelaxationBlock and the helper class BlockList have
- been added to the library.
- <br>
- (GK 2010/10/19)
- </p></li>
-
- <li><p>Improved: The ConstraintMatrix::merge function now takes a second
- argument that indicates what should happen if the two objects to be
- merged have constraints on the very same degree of freedom.
- <br>
- (WB 2010/09/18)
- </p></li>
-
- <li><p>Updated: Changes to the <code>SLEPcWrappers</code> to preserve
- compatibility with SLEPc version 3.1. Main new updated features are
- new solver classes: (i) Power; and (ii) Generalized Davidson.
- <br>
- (Toby D. Young 2010/08/04)
- </p></li>
-
- <li><p>Fixed: SparseMatrix::precondition_SSOR and
- SparseMatrixEZ::precondition_SSOR had a bug, which made the SSOR
- method inaccurate for relaxation parameters different from unity.
- <br>
- (GK 2010/07/20)
- </p></li>
-</ol>
-
-
-
-<a name="deal.II"></a>
-<h3>deal.II</h3>
-
-<ol>
- <li><p>New: The GridTools::transform function used to work only on
- meshes that are not refined at all. It now also works on meshes
- that have been refined uniformly, though not on adaptively refined
- ones.
- <br>
- (WB, 2010/12/20)
- </p></li>
-
- <li><p>New: When computing errors using
- VectorTools::integrate_difference in codimension one problems, if
- you specified a norm that requires the computation of the gradients,
- you would get in trouble, because on codimension one manifolds we only
- have information on the <em>tangential</em> gradient. This is now
- fixed, by discarding the normal component of the provided function,
- before computing the difference with the finite element function.
- <br>
- (Luca Heltai, 2010/12/05)
- </p></li>
-
- <li><p>New: The VectorTools::interpolate_boundary_values function can now
- also be used to interpolate boundary values on meshes embedded in a higher
- dimensional space.
- <br>
- (WB, 2010/11/20)
- </p></li>
-
- <li><p>Fixed: Triangulation::execute_coarsening_and_refinement misplaced
- the new central vertex of a quad in a two-dimensional mesh embedded into
- higher dimensional space if said quad was at the boundary of the surface
- described by this triangulation. This is now fixed.
- <br>
- (WB, 2010/11/18)
- </p></li>
-
- <li><p>New: The GridTools::extract_boundary_mesh function can be used to
- generate a surface mesh from the boundary of a volume mesh.
- <br>
- (Sebastian Pauletti, 2010/11/15)
- </p></li>
-
- <li><p>Fixed: For DoF iterators, it was previously possible to write
- code like <code>*it1 = *it2</code>, presumably with the intent to
- copy the entire cell pointed to on the right hand side onto the cell
- pointed to at the left. However, this is not what happens since
- iterators are not pointers but only point to accessor classes. The
- assignment operator has therefore been removed.
- <br>
- (WB, 2010/11/12)
- </p></li>
-
- <li><p>New: The GridOut::write_gnuplot function now also works for meshes
- that are embedded in a higher
- dimensional space (i.e. if the codimension was greater than 1).
- <br>
- (WB, 2010/11/03)
- </p></li>
-
- <li><p>New: The class hp::FEFaceValues and hp::FESubfaceValues were not
- previously available for meshes that were embedded in a higher
- dimensional space (i.e. if the codimension was greater than 1). This is
- now fixed. As a consequence, the VectorTools::interpolate_boundary_values
- function is now also available for such meshes.
- <br>
- (WB, 2010/11/02)
- </p></li>
-
- <li><p>Fixed: The FEValuesExtractors::Vector class did not work when the dimension
- of the domain was not equal to the dimension of the space in which it is
- embedded. This is now fixed.
- <br>
- (Sebastian Pauletti, WB, 2010/11/01)
- </p></li>
-
- <li><p>Fixed: The methods VectorTools::project_boundary_values_curl_conforming
- set the boundary values now also H(curl)-conforming, when hanging node
- constraints are present.
- <br>
- (Markus Buerg, 2010/10/11)
- </p></li>
-
- <li><p>Changed: The DataPostprocessor functions now take an additional
- argument that indicates the location of an evaluation point. For backward
- compatibility, the old function signature still exists so that applications
- that overload one of the existing functions continue to work.
- The old signature has been deprecated, however, and will be removed in a
- future version.
- <br>
- (Scott Miller 2010/10/08)
- </p></li>
-
- <li><p>Changed: FETools is now a namespace rather than a class with only
- static member functions.
- <br>
- (WB 2010/09/25)
- </p></li>
-
- <li><p>New: FE_DGVector implements discontinuous elements based on
- vector valued polynomial spaces.
- <br>
- (GK 2010/09/17)
- </p></li>
-
- <li>
- <p>
- Fixed: The methods VectorTools::interpolate_boundary_values and
- VectorTools::project_boundary_values with ConstraintMatrix argument added
- inhomogeneities also to DoFs that were already constrained when entering the
- call without changing the list of DoFs that those were constrained to. This
- leads to wrong results for inhomogeneous constraints in case e.g.
- DoFTools::make_hanging_node_constraints was called before. Now, the correct
- way for combining hanging node constraints and Dirichlet conditions in one
- ConstraintMatrix is to first make the hanging node constraints, and then
- interpolate/project the boundary values. The latter operation will then
- simply not add any new constraints if a DoF is already constrained. The
- same is also true for VectorTools::compute_no_normal_flux_constraints.
- <br>
- (Luca Heltai, Martin Kronbichler, WB 2010/09/16)
- </p>
-
- <li>
- <p>
- Fixed: The method FEValuesViews::Vector::curl aborted the program in 2d under certain
- circumstances. This is now fixed.
- <br>
- (Andrea Bonito, WB 2010/09/14)
- </p>
-
- <li><p>Improved: MeshWorker::loop() now uses WorkStream for multithreading
- <br>
- (GK 2010/09/10)
- </p>
-
- <li>
- <p>
- Fixed: The method FEValuesViews::SymmetricTensor< 2, dim, spacedim >::get_function_divergences
- incorrectly calculated the divergence.
- <br>
- (Andrew McBride 2010/09/09)
- </p>
-
- <li>
- <p>
- New: Reimplementation of the parent function in the various DoFCellAccessors so
- that one can call the parent function from a DoFIterator and also gets a
- DoFIterator returned.
- <br>
- (Markus Buerg 2010/08/30)
- </p>
-
- <li>
- <p>
- New: FETools::compute_embedding_matrices now computes the embedding matrix
- for all refinement cases in parallel.
- <br>
- (Markus Buerg 2010/08/26)
- </p>
-
- <li>
- <p>
- New: There is now a function CellAccessor::parent so that one can do
- <code>cell-@>parent()</code>
- <br>
- (Markus Buerg 2010/08/26)
- </p>
-
- <li>
- <p>
- Improved: DoFHandler has a default constructor, so that it can be used in containers.
- <br>
- (GK 2010/08/16)
- </p>
-
- <li>
- <p>
- New: The functions VectorTools::project_boundary_values_curl_conforming
- are added. They can compute Dirichlet boundary conditions for Nedelec
- elements.
- <br>
- (Markus Buerg 2010/08/13)
- </p>
-
- <li>
- <p>
- Fixed: The function FEValuesViews::Vector::get_function_curls produced
- wrong results in some cases, because it erased the given vector first.
- This is now fixed.
- <br>
- (Markus Buerg 2010/08/13)
- </p>
-
- <li>
- <p>
- New: Ability to project second-order SymmetricTensor and first-order Tensor objects from the quadrature points to the support points of the cell using FETools::compute_projection_from_quadrature_points
- <br>
- (Andrew McBride 2010/07/29)
- </p>
-
- <li>
- <p>
- Fixed: In some rather pathological cases, the function
- Triangulation::prepare_coarsening_and_refinement (which is called from
- Triangulation::execute_coarsening_and_refinement) could take very long
- if the flag Triangulation::eliminate_unrefined_islands was given in
- the mesh smoothing flags upon construction of the triangulation. This is
- now fixed.
- <br>
- (WB 2010/07/27)
- </p>
-
- <li><p> New: Brezzi-Douglas-Marini elements of arbitrary order in FE_BDM.
- <br>
- (GK 2010/07/19)
- </p>
-
- <li>
- <p>
- Fixed: The FEValues::get_cell() function was unusable from user code
- since its implementation used a class that was only forward declared
- and not visible at the point of instantiations in user code. This is now
- fixed.
- <br>
- (WB 2010/07/16)
- </p>
-
- <li>
- <p>New: The multilevel matrices for continuous elements
- can be built with the MeshWorker now.
- <br>
- (Bärbel Janssen 2010/07/01)
- </p></li>
-
- <li>
- <p>
- Fixed: On some systems and compilers, the library could not be compiled
- because of a duplicate symbol in <code>MeshWorker::LocalResults</code>.
- This is now fixed.
- <br>
- (WB 2010/06/28)
- </p>
-
<li>
- <p>
- Fixed: The output of the function
- FE_Q::adjust_quad_dof_index_for_face_orientation
- was wrong in 3d for polynomial orders of three or greater. This is now
- fixed.
- <br>
- (WB 2010/06/28)
- </p>
</ol>
</p>
<p>
- Please refer to the archive of the <a
- href="http://dealii.org/mailman/listinfo/dealii_dealii.org">deal.II
+ Please refer to the archive of the <a target="_top"
+ href="http://dealii.org/mailman/listinfo/dealii">deal.II
mailing list</a> for additional news.
</p>
<p> Changes in the library since the last major release are
- <a href="../doxygen/deal.II/changes_after_6_3.html">here.</a></p>
+ <a href="../doxygen/deal.II/changes_after_7_0.html">here.</a></p>
<dl>
+ <dt>
+ <strong style="color:red">2011/01/08: Version 7.0 released</strong>
+ </dt>
+ <dd>
+ Version 7.0.0 was released today. This release is a huge step
+ forward, with several significant new features such as support for
+ thousands or tens of thousands of processors. A complete list of new
+ features is found <a
+ href="../doxygen/deal.II/changes_between_6_3_and_7_0.html" target="body">here</a>.
+ </dd>
+
+
<dt>
<strong>2011/01/02: step-38 shows how to solve partial differential
equations on curved manifolds</strong>
projects / dealii-svn.git / commitdiff