--- /dev/null
+/**
+ * @page changes_between_7_3_and_8_0 Changes between Version 7.3 and 8.0
+
+<p>
+This is the list of changes made between the release of
+deal.II version 7.3.0 and that of 8.0.0.
+All entries are signed with the names of the authors.
+</p>
+
+
+
+<!-- ----------- INCOMPATIBILITIES ----------------- -->
+
+<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> Removed: it was possible to call get_dof_indices(), get_dof_values(),
+set_dof_values(), and distribute_local_to_global() for cells that were not
+active, if the finite element only had DoFs on vertices (i.e. Q1). This is
+no longer allowed.
+<br>
+(Timo Heister, 2013/06/02)
+
+<li> Changed: Internal structures of ExceptionBase are now thread safe. The
+Assert macro does not print an exception to deallog any more prior to
+throwing if deal_II_exceptions::abort_on_exception==false. Removed: A
+number of obsolete Exceptions that are not used in the library any more.
+<br>
+(Matthias Maier, 2013/04/16)
+
+<li> Removed: A number of header files that have been deprecated a long time
+ago have been removed. All of them had previously only included the header file
+that had superseded them. To upgrade, simply include the currently used
+header file. This is also backward compatible with deal.II 7.3.
+<br>
+(Guido Kanschat, 2013/04/12)
+
+<li> Removed: The interfaces to the obsolete direct solvers MA27 and MA47 from
+the Harwell Subroutine Library. Support for the HSL routines were not ported to
+the new build system. However, the sparse direct solver UMFPACK remains to be
+supported and is provided as part of the standard deal.II distribution, unlike
+the HSL functions.
+<br>
+(Matthias Maier, 2013/04/01)
+
+<li> Changed: The TimeDependent::end_sweep function with an argument indicating
+the number of threads has been removed. Use the corresponding function without
+an argument. Since the argument had a default value, few users will have used
+this function.
+<br>
+(Wolfgang Bangerth, 2013/03/17)
+
+</ol>
+
+
+<!-- ----------- GENERAL IMPROVEMENTS ----------------- -->
+
+<a name="general"></a>
+<h3>General</h3>
+
+
+<ol>
+ <li> Improvements on the CMake build system: A Working C (or Fortran) compiler
+ is now fully optional; Improved support for static linkage with a toggle
+ "DEAL_II_PREFER_STATIC_LIBS" that will prefer static archives for non system
+ libraries and "DEAL_II_STATIC_EXECUTABLE" that will switch the complete link
+ interface to static linkage.
+ <br>
+ (Matthias Maier, 2013/07/16)
+ </li>
+
+ <li> New: various functions for parallel computations got introduced to
+ make Trilinos and PETSc interfaces similar. Now step-40 can be used with
+ PETSc or Trilinos with just a few changes. This patch also introduces
+ better support for block systems in the PETSc interfaces.
+ <br>
+ (Timo Heister, 2013/07/15)
+ </li>
+
+ <li> New: deal.II can now be compiled to 64-bit global dof indices. To turn
+ this feature on, use the cmake option -DDEAL_II_WITH_64BIT_INDICES=ON. If
+ PETSc and/or Trilinos are used, they must be compiled to support 64-bit
+ indices. To write a code that can use 32-bit and 64-bit indices depending on
+ deal.II compilation option, use types::global_dof_index for all the global
+ dof indices.
+ <br>
+ (Kainan Wang and Bruno Turcksin, 2013/06/05)
+ </li>
+
+ <li> New: All vector classes now have a member function
+ <code>locally_owned_elements</code> that returns an index
+ set indicating which elements of this vector the current
+ processor owns.
+ <br>
+ (Wolfgang Bangerth, 2013/05/24)
+ </li>
+
+
+ <li> New: A new element FE_Q_iso_Q1 has been implemented that is defined by
+ a subdivision of the element into smaller Q1 elements. An element of order
+ @p p is similar to FE_Q of degree @p p with the same numbering of degrees of
+ freedom. The element is useful e.g. for defining a sparser preconditioner
+ matrix for AMG at higher order FE_Q elements or for representing a component
+ of a system of PDEs where higher resolution is preferred over high order.
+ <br>
+ (Martin Kronbichler, 2013/05/14)
+ </li>
+
+ <li> New: The step-49 tutorial program now also has a discussion on
+ what to do once you have a coarse mesh and want to refine it.
+ <br>
+ (Wolfgang Bangerth, 2013/04/03)
+ </li>
+
+ <li> New: The number of threads used by deal.II/TBB can now be limited at
+ run time. Using MPI based code using PETSc/Trilinos no longer requires you
+ to compile the library without threads. See MPI_InitFinalize and
+ MultithreadInfo::set_thread_limit for details.
+ <br>
+ (Timo Heister, 2013/03/26)
+ </li>
+
+ <li> New: The results section of step-36 now explains how to use ARPACK
+ as an alternative to SLEPc as eigenvalue solver.
+ <br>
+ (Juan Carlos Araujo Cabarcas, 2013/03/25)
+ </li>
+
+ <li> New: deal.II now uses <a href="http://www.cmake.org/">CMake</a>
+ as its configuration and build tool. Please read through the
+ readme and other installation files for information about how the
+ installation process has changed.
+ <br>
+ Because this touches the configuration of every external package we
+ interact with, there are a number of other changes as a result:
+ <ul>
+ <li>The minimum supported version for Trilinos is now 10.8.x.
+ <li>We no longer link with different versions of the p4est library
+ in debug and optimized mode. Rather, we now link with the same
+ library in both modes. The p4est installation instructions have
+ been updated. <blink>TODO TODO TODO</blink>
+ </ul>
+ <br>
+ (Matthias Maier, 2013/03/07)
+ </li>
+</ol>
+
+
+<!-- ----------- SPECIFIC IMPROVEMENTS ----------------- -->
+
+<a name="specific"></a>
+<h3>Specific improvements</h3>
+
+<ol>
+
+<li>New: VectorTools::project and a whole host of similar functions
+are now also available for objects of type hp::DoFHandler.
+<br>
+(Wolfgang Bangerth, 2013/07/21)
+</li>
+
+<li>Fixed: hp::DoFHandler::n_boundary_dofs() had a bug that always led
+to a failed assertion. This is now fixed.
+<br>
+(Wolfgang Bangerth, 2013/07/21)
+</li>
+
+<li>Fixed: VectorTools::project has an option to first project onto the
+boundary. However, the implementation of this option ignored the mapping
+that is provided to the function. This is now fixed.
+<br>
+(Wolfgang Bangerth, 2013/07/16)
+</li>
+
+<li>Improved: The WorkStream class used throughout deal.II is now using
+thread local variables and initializes temporary variables on the thread
+that uses them, leading to better cache locality.
+<br>
+(Wolfgang Bangerth, 2013/07/16)
+</li>
+
+<li>Improved: The "pure" functions in MeshWorker::LocalIntegrator are now implemented and throw
+an exception if not overloaded.
+<br>
+(Guido Kanschat, 2013/07/16)
+</li>
+
+<li> New: The function SparseDirectUMFPACK::Tvmult is now implemented.
+<br>
+(Matthias Maier, 2013/07/03)
+</li>
+
+<li> New: In addition to the FEValuesExtractors::Scalar,
+FEValuesExtractors::Vector, and FEValuesExtractors::SymmetricTensor classes,
+there are now also fully featured FEValuesExtractors::Tensor extractors
+for non-symmetric tensors of rank 2.
+<br>
+(Denis Davydov, 2013/07/02)
+</li>
+
+<li> New: There are now functions Tensor::component_to_unrolled_index()
+and Tensor::unrolled_to_component_indices() in the same way as they
+already exist for the SymmetricTensor class.
+<br>
+(Denis Davydov, 2013/07/02)
+</li>
+
+<li> New: There is now a read-write version of TableIndices::operator[].
+<br>
+(Denis Davydov, 2013/07/02)
+</li>
+
+<li> New: The function parallel::distributed::Triangulation::copy_triangulation() is
+now implemented.
+<br>
+(Martin Steigemann, 2013/07/02)
+</li>
+
+<li> New: TriaRawIterator::operator < (TriaRawIterator&) now implements a total ordering
+relation for cells even on distributed::parallel::Triangulation across processors.
+Additionally, TriaRawAccessor and CellAccessor now have an ordering relation.
+<br>
+(Guido Kanschat, 2013/06/24)
+</li>
+
+<li> New: CellAccessor::id() that returns a unique CellId that
+also works in parallel computations (where level and index is not
+useful).
+<br>
+(Timo Heister, 2013/06/24)
+</li>
+
+<li> New: added ConstantTensorFunction<rank, dim> and ZeroTensorFunction<rank, dim> to provide
+a tensor valued analogue to ConstantFunction and ZeroFunction.
+<br>
+(Matthias Maier, 2013/06/20)
+</li>
+
+<li> Fixed: BlockSparsityPattern::column_number was returning
+wrong values.
+<br>
+(Timo Heister, 2013/06/16)
+</li>
+
+<li> Fixed: The stabilization parameter for the artificial diffusion
+in the step-31 tutorial program has been increased slightly to avoid
+instabilities at later times (<i>t</i> > 60).
+<br>
+(Martin Kronbichler, 2013/06/04)
+</li>
+
+<li> Fixed: If an exception was generated on a task created by
+Threads::new_task, the program would terminate with a segmentation
+fault, leaving little trace of what had happened. This is now handled
+more gracefully.
+<br>
+(Wolfgang Bangerth, 2013/06/02)
+</li>
+
+<li> Changed: subdomain ids can now only be queried/set on active cells.
+Consequently, is_artificial(), is_ghost(), and is_locally_owned() is
+now restricted to active cells.
+<br>
+(Timo Heister, 2013/05/31)
+</li>
+
+<li> Improved: Triangulation::begin(level) and Triangulation::end(level) now return an
+empty iterator range if the level is larger than the maximal locally owned level,
+but still in the global level range of a distributed Triangulation.
+<br>
+(Timo Heister and Guido Kanschat, 2013/05/26)
+</li>
+
+<li> New: The IndexSet::add_indices function that takes another IndexSet
+object now has an additional argument <code>offset</code> that can be used
+to offset the indices of first argument.
+<br>
+(Wolfgang Bangerth, 2013/05/25)
+</li>
+
+<li> New: ConstraintMatrix::distribute is now also implemented for
+arguments of type PETScWrappers::MPI::BlockVector.
+<br>
+(Wolfgang Bangerth, 2013/05/25)
+</li>
+
+<li> Fixed: IndexSet::operator== returned the wrong results
+in some cases.
+<br>
+(Wolfgang Bangerth, 2013/05/25)
+</li>
+
+<li> New: The global function <code>complete_index_set()</code>
+creates and returns an index set of given size that contains
+every single index with this range.
+<br>
+(Wolfgang Bangerth, 2013/05/24)
+</li>
+
+<li> New: All vector classes now have a static member variable
+<code>supports_distributed_data</code> that indicates whether the
+vector class supports data that is distributed across multiple
+processors. This variable is provided as a <i>traits variable</i>
+to allow generic algorithms working on general vector types to
+query the capabilities of the vector class at compile time.
+<br>
+(Wolfgang Bangerth, 2013/05/23)
+</li>
+
+<li> Fixed: FETools::back_interpolate has been revised to work correctly
+also with parallel::distributed::Vector.
+<br>
+(Martin Steigemann, 2013/05/23)
+</li>
+
+<li> Removed: The file <code>mesh_worker/vector_info.h</code> was unused and
+untested. It has thus been removed.
+<br>
+(Wolfgang Bangerth, Guido Kanschat, 2013/05/21)
+</li>
+
+<li> Fixed: The method parallel::distributed::Vector::compress
+(VectorOperation::insert) previously set the elements of ghost elements
+unconditionally on the owning processor, even if they had not been touched.
+This led to a problem in certain library functions where vector entries became
+zero in a spurious way. This is now fixed by discarding the elements in ghost
+entries for the VectorOperation::insert operation. This is legitimate since we
+assume consistency of set elements across processors, so the owning processor
+sets the element already.
+<br>
+(Martin Kronbichler, 2013/05/21)
+</li>
+
+<li> Improved: DoFTools::make_periodicity_constraints now also works
+for meshes where the refinement level of the two sides of the domain
+is not the same, i.e., one side is more refined than the other.
+<br>
+(Wolfgang Bangerth, 2013/05/20)
+</li>
+
+<li> Improved: Through the fields DataOutBase::VtkFlags::time and
+DataOutBase::VtkFlags::cycle, it is now possible to encode the time and/or
+cycle within a nonlinear or other iteration in VTK and VTU files written
+via DataOutBase::write_vtk and DataOutBase::write_vtu.
+<br>
+(Wolfgang Bangerth, 2013/05/12)
+</li>
+
+<li> Fixed: The method ConvergenceTable::evaluate_convergence_rates with
+ reference column did not take the dimension of the reference column into
+ account, leading to wrong logarithmic rates for dim!=2. This can now be fixed
+ by specifying the dimension as a last argument.
+<br>
+(Martin Kronbichler, 2013/05/10)
+</li>
+
+<li> Improved: The functions MatrixTools::create_mass_matrix and
+MatrixTools::create_laplace_matrix take now an optional ConstraintMatrix
+argument that allows to directly apply the constraints. This also helps
+VectorTools::project. Note that not providing constraints remains the default
+and recommended way to ensure consistency when several matrices are combined.
+<br>
+(Martin Kronbichler, 2013/05/08)
+</li>
+
+<li> New: The classes TrilinosWrappers::SparseMatrix and
+TrilinosWrappers::BlockSparseMatrix now fully implement vmult and Tvmult with
+deal.II's own vector classes Vector<double> and
+parallel::distributed::Vector<double>.
+<br>
+(Martin Kronbichler, 2013/05/08)
+</li>
+
+<li> Improved: The matrix-vector product ChunkSparseMatrix::vmult now runs in
+parallel in shared memory.
+<br>
+(Martin Kronbichler, 2013/05/07)
+</li>
+
+<li> New: The class ChunkSparseMatrix and the associated
+ChunkSparsityPattern now offer iterator classes to iterate over rows of the
+matrix in an STL-like way.
+<br>
+(Martin Kronbichler, 2013/05/07)
+</li>
+
+<li> Fixed: The stopping criterion for early exit in SolverBicgstab did not
+work properly for systems with large values, leading to premature exit. This
+is now fixed.
+<br>
+(Martin Kronbichler, 2013/05/07)
+</li>
+
+<li> Changed: The SolverGMRES implementation previously applied two
+iterations of the modified Gram–Schmidt algorithm for
+orthogonalization. In many situations one iteration is enough. The algorithm
+can now detect loss of orthogonality and enables re-orthogonalization only if
+necessary. The second iteration (and, hence, old behavior) can be forced by
+the flag SolverGMRES::AdditionalData::force_re_orthogonalization.
+<br>
+(Martin Kronbichler, 2013/05/06)
+</li>
+
+<li> Changed: FETools::interpolate is now instantiated for all
+vector types, not just dealii::Vector and dealii::BlockVector.
+<br>
+(Wolfgang Bangerth, 2013/05/06)
+</li>
+
+<li> Fixed: setting values in TrilinosWrappers::SparseMatrix
+in parallel was adding the values instead.
+<br>
+(Bruno Turcksin, Timo Heister, 2013/05/03)
+</li>
+
+<li> Fixed: Generate an error if the user tries to refine a cell
+that is already on the maximum level in a distributed triangulation.
+<br>
+(Timo Heister, 2013/05/01)
+</li>
+
+<li> Fixed: The version of ParameterHandler::set that takes a boolean
+as second argument was broken and did not work. This is now fixed.
+<br>
+(Ashkan Dorostkar, Wolfgang Bangerth, 2013/04/30)
+</li>
+
+<li> Fixed: PETScWrappers::VectorBase::print now saves and restores
+the precision
+and width associated with the stream it prints to around setting
+the values passed as arguments.
+<br>
+(Fahad Alrashed, 2013/04/22)
+</li>
+
+<li> Fixed: FullMatrix::print now saves and restores the precision
+and width associated with the stream it prints to around setting
+the values passed as arguments.
+<br>
+(Fahad Alrashed, 2013/04/22)
+</li>
+
+<li> New: LogStream now has member functions LogStream::width,
+LogStream::precision and LogStream::flags that make it look more
+like normal objects of type <code>std::ostream</code>.
+<br>
+(Fahad Alrashed, 2013/04/22)
+</li>
+
+<li> New: SparseDirectUMFPACK has long had the ability to work with
+BlockSparseMatrix objects, but couldn't deal with BlockVector objects.
+This is now fixed.
+<br>
+(Wolfgang Bangerth, 2013/04/21)
+</li>
+
+<li> New: Class TimerOutput::Scope does automatic scope based enter/
+exit_section of a TimerOutput object.
+<br>
+(Timo Heister, 2013/04/18)
+</li>
+
+<li> Fixed: TimerOutput constructed with an MPI_COMM in wall_time
+mode now constructs synchronized Timer objects. This gives reliable
+parallel benchmark timings.
+<br>
+(Timo Heister, 2013/04/18)
+</li>
+
+<li> Improved and Fixed: LogStream (and deallog) now respect std::flush in
+addition to std::endl to write out content to the console/file.
+Furthermore, LogStream::push(...) and LogStream::pop() now work in a thread
+safe manner. Also allow to pop() the prefix "DEAL".
+<br>
+(Matthias Maier, 2013/04/18)
+</li>
+
+<li> Fixed: The HalfHyperShellBoundary class got refining
+the edges that sit at the perimeter of the circular face of the domain
+wrong. This is now fixed.
+<br>
+(Wolfgang Bangerth, Jörg Frohne, 2013/04/17)
+</li>
+
+<li> New: Functions::FEFieldFunction can now deal with
+parallel::distributed::Triangulation objects.
+<br>
+(Wolfgang Bangerth, 2013/04/15)
+</li>
+
+<li> New: There is now a version of SparseMatrix::copy_from that can copy
+from TrilinosWrappers::SparseMatrix.
+<br>
+(Wolfgang Bangerth, Jörg Frohne, 2013/04/15)
+</li>
+
+<li> Improved: The SolverCG implementation now uses only three auxiliary
+vectors, down from previously four. Also, there are some shortcuts in case
+PreconditionIdentity is used that improve the solver's performance.
+<br>
+(Martin Kronbichler, 2013/04/11)
+</li>
+
+<li> Fixed: The results section of step-23 did not show the movie in release 7.3
+due to a poor HTML markup. This is now fixed.
+<br>
+(Wolfgang Bangerth, 2013/04/10)
+</li>
+
+<li> Fixed: It is now possible to use the MeshWorker framework in 1d as well.
+<br>
+(Wolfgang Bangerth, Scott Miller, 2013/04/09)
+</li>
+
+<li> Fixed: It was not possible to create a default-constructed object of
+type Triangulation<1>::face_iterator. This is now fixed.
+<br>
+(Wolfgang Bangerth, Scott Miller, 2013/04/09)
+</li>
+
+<li> New: VectorTools::subtract_mean_value can now be called without a
+boolean mask. The vector type is templatified and instantiated for all
+non distributed vectors.
+<br>
+(Matthias Maier, 2013/04/08)
+</li>
+
+<li> Fixed: It is now possible to call ConvergenceTable::evaluate_convergence_rates
+multiple times.
+<br>
+(Matthias Maier, 2013/04/08)
+</li>
+
+<li> Fixed: GridTools::distort_random (previously called Triangulation::distort_random)
+had a bug where points were only ever moved in <i>positive</i> coordinate
+directions rather than with uniform probability in either direction. The 1d
+implementation also had the problem that it did not move vertices if the
+<i>cell</i> they were on was at the boundary, even if the <i>vertex</i>
+itself was not. All of these problems are now fixed.
+<br>
+(Wolfgang Bangerth, 2013/04/05)
+</li>
+
+<li> New: There is a class VectorFunctionFromTensorFunction that converts
+between objects of type TensorFunction and Function.
+<br>
+(Spencer Patty, 2013/4/2)
+</li>
+
+<li> Fixed: The ParameterHandler class could not deal with parameters named
+<code>"value"</code> (and a few other names). This is now fixed.
+<br>
+(Denis Davydov, Matthias Maier, Wolfgang Bangerth, 2013/3/31)
+</li>
+
+<li> Changed: TimerOutput no longer assumes that sections are not nested
+when outputting percentage and total run time.
+<br>
+(Timo Heister, 2013/3/28)
+</li>
+
+<li> New: MPI_InitFinalize can also initialize PETSc/Slepc when
+not compiling with MPI. This is now the preferred way to initialize
+MPI/PETSc/Slepc in all cases.
+<br>
+(Timo Heister, 2013/3/26)
+</li>
+
+<li> Added/fixed: IterativeInverse::vmult() can now handle vectors
+using a different number type than the matrix type. As usual, the
+number types must be compatible. Addtitionally, the initial guess is
+always set to zero, since starting with the incoming vector makes no
+sense.
+<br>
+(Guido Kanschat, 2013/03/21)
+</li>
+
+<li> Added GridOut::write_svg() to allow for the output of
+two-dimensional triangulations in two space dimensions in the SVG
+format (Scalable Vector Graphics, an generic XML-based vector image
+format developed and maintained by the World Wide Web Consortium W3C).
+This function also provides cell coloring and cell labeling for the
+visualization of basic cell properties. Pespective view is further
+possible and the cell level number may be converted into altitude,
+revealing the inactive cells lying below.
+<br>
+(Christian Wülker, 2013/03/21)
+</li>
+
+<li> Added TimerOutput::reset to remove the collected information so far and
+added a new frequency TimerOutput::never to only output information if
+triggered by print_summary().
+<br>
+(Timo Heister, 2013/03/20)
+</li>
+
+<li> Changed: FEValuesExtractors::Scalar, FEValuesExtractors::Vector and
+FEValuesExtractors::SymmetricTensor could not be default constructed, and
+consequently one could not easily put them into arrays (where they would
+be default constructed when changing the size, and later assigned useful
+values). These classes can now be default constructed to invalid
+values, but can of course not be used in any useful way.
+<br>
+(Wolfgang Bangerth, 2013/03/15)
+</li>
+
+<li> Fixed: FETools::interpolation_difference did not work with PETSc.
+This is now fixed.
+<br>
+(Timo Heister, 2013/03/01)
+</li>
+
+</ol>
+
+
+*/
/**
- * @page changes_after_7_3 Changes after Version 7.3
+ * @page changes_after_8_0 Changes after Version 8.0
<p>
This is the list of changes made after the release of
-deal.II version 7.3.0.
+deal.II version 8.0.0.
All entries are signed with the names of the authors.
</p>
<ol>
-<li> Removed: it was possible to call get_dof_indices(), get_dof_values(),
-set_dof_values(), and distribute_local_to_global() for cells that were not
-active, if the finite element only had DoFs on vertices (i.e. Q1). This is
-no longer allowed.
-<br>
-(Timo Heister, 2013/06/02)
-
-<li> Changed: Internal structures of ExceptionBase are now thread safe. The
-Assert macro does not print an exception to deallog any more prior to
-throwing if deal_II_exceptions::abort_on_exception==false. Removed: A
-number of obsolete Exceptions that are not used in the library any more.
-<br>
-(Matthias Maier, 2013/04/16)
-
-<li> Removed: A number of header files that have been deprecated a long time
-ago have been removed. All of them had previously only included the header file
-that had superseded them. To upgrade, simply include the currently used
-header file. This is also backward compatible with deal.II 7.3.
-<br>
-(Guido Kanschat, 2013/04/12)
-
-<li> Removed: The interfaces to the obsolete direct solvers MA27 and MA47 from
-the Harwell Subroutine Library. Support for the HSL routines were not ported to
-the new build system. However, the sparse direct solver UMFPACK remains to be
-supported and is provided as part of the standard deal.II distribution, unlike
-the HSL functions.
-<br>
-(Matthias Maier, 2013/04/01)
-
-<li> Changed: The TimeDependent::end_sweep function with an argument indicating
-the number of threads has been removed. Use the corresponding function without
-an argument. Since the argument had a default value, few users will have used
-this function.
-<br>
-(Wolfgang Bangerth, 2013/03/17)
-
</ol>
<ol>
- <li> Improvements on the CMake build system: A Working C (or Fortran) compiler
- is now fully optional; Improved support for static linkage with a toggle
- "DEAL_II_PREFER_STATIC_LIBS" that will prefer static archives for non system
- libraries and "DEAL_II_STATIC_EXECUTABLE" that will switch the complete link
- interface to static linkage.
- <br>
- (Matthias Maier, 2013/07/16)
- </li>
-
- <li> New: various functions for parallel computations got introduced to
- make Trilinos and PETSc interfaces similar. Now step-40 can be used with
- PETSc or Trilinos with just a few changes. This patch also introduces
- better support for block systems in the PETSc interfaces.
- <br>
- (Timo Heister, 2013/07/15)
- </li>
-
- <li> New: deal.II can now be compiled to 64-bit global dof indices. To turn
- this feature on, use the cmake option -DDEAL_II_WITH_64BIT_INDICES=ON. If
- PETSc and/or Trilinos are used, they must be compiled to support 64-bit
- indices. To write a code that can use 32-bit and 64-bit indices depending on
- deal.II compilation option, use types::global_dof_index for all the global
- dof indices.
- <br>
- (Kainan Wang and Bruno Turcksin, 2013/06/05)
- </li>
-
- <li> New: All vector classes now have a member function
- <code>locally_owned_elements</code> that returns an index
- set indicating which elements of this vector the current
- processor owns.
- <br>
- (Wolfgang Bangerth, 2013/05/24)
- </li>
-
-
- <li> New: A new element FE_Q_iso_Q1 has been implemented that is defined by
- a subdivision of the element into smaller Q1 elements. An element of order
- @p p is similar to FE_Q of degree @p p with the same numbering of degrees of
- freedom. The element is useful e.g. for defining a sparser preconditioner
- matrix for AMG at higher order FE_Q elements or for representing a component
- of a system of PDEs where higher resolution is preferred over high order.
- <br>
- (Martin Kronbichler, 2013/05/14)
- </li>
-
- <li> New: The step-49 tutorial program now also has a discussion on
- what to do once you have a coarse mesh and want to refine it.
- <br>
- (Wolfgang Bangerth, 2013/04/03)
- </li>
-
- <li> New: The number of threads used by deal.II/TBB can now be limited at
- run time. Using MPI based code using PETSc/Trilinos no longer requires you
- to compile the library without threads. See MPI_InitFinalize and
- MultithreadInfo::set_thread_limit for details.
- <br>
- (Timo Heister, 2013/03/26)
- </li>
-
- <li> New: The results section of step-36 now explains how to use ARPACK
- as an alternative to SLEPc as eigenvalue solver.
- <br>
- (Juan Carlos Araujo Cabarcas, 2013/03/25)
- </li>
-
- <li> New: deal.II now uses <a href="http://www.cmake.org/">CMake</a>
- as its configuration and build tool. Please read through the
- readme and other installation files for information about how the
- installation process has changed.
- <br>
- Because this touches the configuration of every external package we
- interact with, there are a number of other changes as a result:
- <ul>
- <li>The minimum supported version for Trilinos is now 10.8.x.
- <li>We no longer link with different versions of the p4est library
- in debug and optimized mode. Rather, we now link with the same
- library in both modes. The p4est installation instructions have
- been updated. <blink>TODO TODO TODO</blink>
- </ul>
- <br>
- (Matthias Maier, 2013/03/07)
- </li>
</ol>
<ol>
-<li>New: VectorTools::project and a whole host of similar functions
-are now also available for objects of type hp::DoFHandler.
-<br>
-(Wolfgang Bangerth, 2013/07/21)
-</li>
-
-<li>Fixed: hp::DoFHandler::n_boundary_dofs() had a bug that always led
-to a failed assertion. This is now fixed.
-<br>
-(Wolfgang Bangerth, 2013/07/21)
-</li>
-
-<li>Fixed: VectorTools::project has an option to first project onto the
-boundary. However, the implementation of this option ignored the mapping
-that is provided to the function. This is now fixed.
-<br>
-(Wolfgang Bangerth, 2013/07/16)
-</li>
-
-<li>Improved: The WorkStream class used throughout deal.II is now using
-thread local variables and initializes temporary variables on the thread
-that uses them, leading to better cache locality.
-<br>
-(Wolfgang Bangerth, 2013/07/16)
-</li>
-
-<li>Improved: The "pure" functions in MeshWorker::LocalIntegrator are now implemented and throw
-an exception if not overloaded.
-<br>
-(Guido Kanschat, 2013/07/16)
-</li>
-
-<li> New: The function SparseDirectUMFPACK::Tvmult is now implemented.
-<br>
-(Matthias Maier, 2013/07/03)
-</li>
-
-<li> New: In addition to the FEValuesExtractors::Scalar,
-FEValuesExtractors::Vector, and FEValuesExtractors::SymmetricTensor classes,
-there are now also fully featured FEValuesExtractors::Tensor extractors
-for non-symmetric tensors of rank 2.
-<br>
-(Denis Davydov, 2013/07/02)
-</li>
-
-<li> New: There are now functions Tensor::component_to_unrolled_index()
-and Tensor::unrolled_to_component_indices() in the same way as they
-already exist for the SymmetricTensor class.
-<br>
-(Denis Davydov, 2013/07/02)
-</li>
-
-<li> New: There is now a read-write version of TableIndices::operator[].
-<br>
-(Denis Davydov, 2013/07/02)
-</li>
-
-<li> New: The function parallel::distributed::Triangulation::copy_triangulation() is
-now implemented.
-<br>
-(Martin Steigemann, 2013/07/02)
-</li>
-
-<li> New: TriaRawIterator::operator < (TriaRawIterator&) now implements a total ordering
-relation for cells even on distributed::parallel::Triangulation across processors.
-Additionally, TriaRawAccessor and CellAccessor now have an ordering relation.
-<br>
-(Guido Kanschat, 2013/06/24)
-</li>
-
-<li> New: CellAccessor::id() that returns a unique CellId that
-also works in parallel computations (where level and index is not
-useful).
-<br>
-(Timo Heister, 2013/06/24)
-</li>
-
-<li> New: added ConstantTensorFunction<rank, dim> and ZeroTensorFunction<rank, dim> to provide
-a tensor valued analogue to ConstantFunction and ZeroFunction.
-<br>
-(Matthias Maier, 2013/06/20)
-</li>
-
-<li> Fixed: BlockSparsityPattern::column_number was returning
-wrong values.
-<br>
-(Timo Heister, 2013/06/16)
-</li>
-
-<li> Fixed: The stabilization parameter for the artificial diffusion
-in the step-31 tutorial program has been increased slightly to avoid
-instabilities at later times (<i>t</i> > 60).
-<br>
-(Martin Kronbichler, 2013/06/04)
-</li>
-
-<li> Fixed: If an exception was generated on a task created by
-Threads::new_task, the program would terminate with a segmentation
-fault, leaving little trace of what had happened. This is now handled
-more gracefully.
-<br>
-(Wolfgang Bangerth, 2013/06/02)
-</li>
-
-<li> Changed: subdomain ids can now only be queried/set on active cells.
-Consequently, is_artificial(), is_ghost(), and is_locally_owned() is
-now restricted to active cells.
-<br>
-(Timo Heister, 2013/05/31)
-</li>
-
-<li> Improved: Triangulation::begin(level) and Triangulation::end(level) now return an
-empty iterator range if the level is larger than the maximal locally owned level,
-but still in the global level range of a distributed Triangulation.
-<br>
-(Timo Heister and Guido Kanschat, 2013/05/26)
-</li>
-
-<li> New: The IndexSet::add_indices function that takes another IndexSet
-object now has an additional argument <code>offset</code> that can be used
-to offset the indices of first argument.
-<br>
-(Wolfgang Bangerth, 2013/05/25)
-</li>
-
-<li> New: ConstraintMatrix::distribute is now also implemented for
-arguments of type PETScWrappers::MPI::BlockVector.
-<br>
-(Wolfgang Bangerth, 2013/05/25)
-</li>
-
-<li> Fixed: IndexSet::operator== returned the wrong results
-in some cases.
-<br>
-(Wolfgang Bangerth, 2013/05/25)
-</li>
-
-<li> New: The global function <code>complete_index_set()</code>
-creates and returns an index set of given size that contains
-every single index with this range.
-<br>
-(Wolfgang Bangerth, 2013/05/24)
-</li>
-
-<li> New: All vector classes now have a static member variable
-<code>supports_distributed_data</code> that indicates whether the
-vector class supports data that is distributed across multiple
-processors. This variable is provided as a <i>traits variable</i>
-to allow generic algorithms working on general vector types to
-query the capabilities of the vector class at compile time.
-<br>
-(Wolfgang Bangerth, 2013/05/23)
-</li>
-
-<li> Fixed: FETools::back_interpolate has been revised to work correctly
-also with parallel::distributed::Vector.
-<br>
-(Martin Steigemann, 2013/05/23)
-</li>
-
-<li> Removed: The file <code>mesh_worker/vector_info.h</code> was unused and
-untested. It has thus been removed.
-<br>
-(Wolfgang Bangerth, Guido Kanschat, 2013/05/21)
-</li>
-
-<li> Fixed: The method parallel::distributed::Vector::compress
-(VectorOperation::insert) previously set the elements of ghost elements
-unconditionally on the owning processor, even if they had not been touched.
-This led to a problem in certain library functions where vector entries became
-zero in a spurious way. This is now fixed by discarding the elements in ghost
-entries for the VectorOperation::insert operation. This is legitimate since we
-assume consistency of set elements across processors, so the owning processor
-sets the element already.
-<br>
-(Martin Kronbichler, 2013/05/21)
-</li>
-
-<li> Improved: DoFTools::make_periodicity_constraints now also works
-for meshes where the refinement level of the two sides of the domain
-is not the same, i.e., one side is more refined than the other.
-<br>
-(Wolfgang Bangerth, 2013/05/20)
-</li>
-
-<li> Improved: Through the fields DataOutBase::VtkFlags::time and
-DataOutBase::VtkFlags::cycle, it is now possible to encode the time and/or
-cycle within a nonlinear or other iteration in VTK and VTU files written
-via DataOutBase::write_vtk and DataOutBase::write_vtu.
-<br>
-(Wolfgang Bangerth, 2013/05/12)
-</li>
-
-<li> Fixed: The method ConvergenceTable::evaluate_convergence_rates with
- reference column did not take the dimension of the reference column into
- account, leading to wrong logarithmic rates for dim!=2. This can now be fixed
- by specifying the dimension as a last argument.
-<br>
-(Martin Kronbichler, 2013/05/10)
-</li>
-
-<li> Improved: The functions MatrixTools::create_mass_matrix and
-MatrixTools::create_laplace_matrix take now an optional ConstraintMatrix
-argument that allows to directly apply the constraints. This also helps
-VectorTools::project. Note that not providing constraints remains the default
-and recommended way to ensure consistency when several matrices are combined.
-<br>
-(Martin Kronbichler, 2013/05/08)
-</li>
-
-<li> New: The classes TrilinosWrappers::SparseMatrix and
-TrilinosWrappers::BlockSparseMatrix now fully implement vmult and Tvmult with
-deal.II's own vector classes Vector<double> and
-parallel::distributed::Vector<double>.
-<br>
-(Martin Kronbichler, 2013/05/08)
-</li>
-
-<li> Improved: The matrix-vector product ChunkSparseMatrix::vmult now runs in
-parallel in shared memory.
-<br>
-(Martin Kronbichler, 2013/05/07)
-</li>
-
-<li> New: The class ChunkSparseMatrix and the associated
-ChunkSparsityPattern now offer iterator classes to iterate over rows of the
-matrix in an STL-like way.
-<br>
-(Martin Kronbichler, 2013/05/07)
-</li>
-
-<li> Fixed: The stopping criterion for early exit in SolverBicgstab did not
-work properly for systems with large values, leading to premature exit. This
-is now fixed.
-<br>
-(Martin Kronbichler, 2013/05/07)
-</li>
-
-<li> Changed: The SolverGMRES implementation previously applied two
-iterations of the modified Gram–Schmidt algorithm for
-orthogonalization. In many situations one iteration is enough. The algorithm
-can now detect loss of orthogonality and enables re-orthogonalization only if
-necessary. The second iteration (and, hence, old behavior) can be forced by
-the flag SolverGMRES::AdditionalData::force_re_orthogonalization.
-<br>
-(Martin Kronbichler, 2013/05/06)
-</li>
-
-<li> Changed: FETools::interpolate is now instantiated for all
-vector types, not just dealii::Vector and dealii::BlockVector.
-<br>
-(Wolfgang Bangerth, 2013/05/06)
-</li>
-
-<li> Fixed: setting values in TrilinosWrappers::SparseMatrix
-in parallel was adding the values instead.
-<br>
-(Bruno Turcksin, Timo Heister, 2013/05/03)
-</li>
-
-<li> Fixed: Generate an error if the user tries to refine a cell
-that is already on the maximum level in a distributed triangulation.
-<br>
-(Timo Heister, 2013/05/01)
-</li>
-
-<li> Fixed: The version of ParameterHandler::set that takes a boolean
-as second argument was broken and did not work. This is now fixed.
-<br>
-(Ashkan Dorostkar, Wolfgang Bangerth, 2013/04/30)
-</li>
-
-<li> Fixed: PETScWrappers::VectorBase::print now saves and restores
-the precision
-and width associated with the stream it prints to around setting
-the values passed as arguments.
-<br>
-(Fahad Alrashed, 2013/04/22)
-</li>
-
-<li> Fixed: FullMatrix::print now saves and restores the precision
-and width associated with the stream it prints to around setting
-the values passed as arguments.
-<br>
-(Fahad Alrashed, 2013/04/22)
-</li>
-
-<li> New: LogStream now has member functions LogStream::width,
-LogStream::precision and LogStream::flags that make it look more
-like normal objects of type <code>std::ostream</code>.
-<br>
-(Fahad Alrashed, 2013/04/22)
-</li>
-
-<li> New: SparseDirectUMFPACK has long had the ability to work with
-BlockSparseMatrix objects, but couldn't deal with BlockVector objects.
-This is now fixed.
-<br>
-(Wolfgang Bangerth, 2013/04/21)
-</li>
-
-<li> New: Class TimerOutput::Scope does automatic scope based enter/
-exit_section of a TimerOutput object.
-<br>
-(Timo Heister, 2013/04/18)
-</li>
-
-<li> Fixed: TimerOutput constructed with an MPI_COMM in wall_time
-mode now constructs synchronized Timer objects. This gives reliable
-parallel benchmark timings.
-<br>
-(Timo Heister, 2013/04/18)
-</li>
-
-<li> Improved and Fixed: LogStream (and deallog) now respect std::flush in
-addition to std::endl to write out content to the console/file.
-Furthermore, LogStream::push(...) and LogStream::pop() now work in a thread
-safe manner. Also allow to pop() the prefix "DEAL".
-<br>
-(Matthias Maier, 2013/04/18)
-</li>
-
-<li> Fixed: The HalfHyperShellBoundary class got refining
-the edges that sit at the perimeter of the circular face of the domain
-wrong. This is now fixed.
-<br>
-(Wolfgang Bangerth, Jörg Frohne, 2013/04/17)
-</li>
-
-<li> New: Functions::FEFieldFunction can now deal with
-parallel::distributed::Triangulation objects.
-<br>
-(Wolfgang Bangerth, 2013/04/15)
-</li>
-
-<li> New: There is now a version of SparseMatrix::copy_from that can copy
-from TrilinosWrappers::SparseMatrix.
-<br>
-(Wolfgang Bangerth, Jörg Frohne, 2013/04/15)
-</li>
-
-<li> Improved: The SolverCG implementation now uses only three auxiliary
-vectors, down from previously four. Also, there are some shortcuts in case
-PreconditionIdentity is used that improve the solver's performance.
-<br>
-(Martin Kronbichler, 2013/04/11)
-</li>
-
-<li> Fixed: The results section of step-23 did not show the movie in release 7.3
-due to a poor HTML markup. This is now fixed.
-<br>
-(Wolfgang Bangerth, 2013/04/10)
-</li>
-
-<li> Fixed: It is now possible to use the MeshWorker framework in 1d as well.
-<br>
-(Wolfgang Bangerth, Scott Miller, 2013/04/09)
-</li>
-
-<li> Fixed: It was not possible to create a default-constructed object of
-type Triangulation<1>::face_iterator. This is now fixed.
-<br>
-(Wolfgang Bangerth, Scott Miller, 2013/04/09)
-</li>
-
-<li> New: VectorTools::subtract_mean_value can now be called without a
-boolean mask. The vector type is templatified and instantiated for all
-non distributed vectors.
-<br>
-(Matthias Maier, 2013/04/08)
-</li>
-
-<li> Fixed: It is now possible to call ConvergenceTable::evaluate_convergence_rates
-multiple times.
-<br>
-(Matthias Maier, 2013/04/08)
-</li>
-
-<li> Fixed: GridTools::distort_random (previously called Triangulation::distort_random)
-had a bug where points were only ever moved in <i>positive</i> coordinate
-directions rather than with uniform probability in either direction. The 1d
-implementation also had the problem that it did not move vertices if the
-<i>cell</i> they were on was at the boundary, even if the <i>vertex</i>
-itself was not. All of these problems are now fixed.
-<br>
-(Wolfgang Bangerth, 2013/04/05)
-</li>
-
-<li> New: There is a class VectorFunctionFromTensorFunction that converts
-between objects of type TensorFunction and Function.
-<br>
-(Spencer Patty, 2013/4/2)
-</li>
-
-<li> Fixed: The ParameterHandler class could not deal with parameters named
-<code>"value"</code> (and a few other names). This is now fixed.
-<br>
-(Denis Davydov, Matthias Maier, Wolfgang Bangerth, 2013/3/31)
-</li>
-
-<li> Changed: TimerOutput no longer assumes that sections are not nested
-when outputting percentage and total run time.
-<br>
-(Timo Heister, 2013/3/28)
-</li>
-
-<li> New: MPI_InitFinalize can also initialize PETSc/Slepc when
-not compiling with MPI. This is now the preferred way to initialize
-MPI/PETSc/Slepc in all cases.
-<br>
-(Timo Heister, 2013/3/26)
-</li>
-
-<li> Added/fixed: IterativeInverse::vmult() can now handle vectors
-using a different number type than the matrix type. As usual, the
-number types must be compatible. Addtitionally, the initial guess is
-always set to zero, since starting with the incoming vector makes no
-sense.
-<br>
-(Guido Kanschat, 2013/03/21)
-</li>
-
-<li> Added GridOut::write_svg() to allow for the output of
-two-dimensional triangulations in two space dimensions in the SVG
-format (Scalable Vector Graphics, an generic XML-based vector image
-format developed and maintained by the World Wide Web Consortium W3C).
-This function also provides cell coloring and cell labeling for the
-visualization of basic cell properties. Pespective view is further
-possible and the cell level number may be converted into altitude,
-revealing the inactive cells lying below.
-<br>
-(Christian Wülker, 2013/03/21)
-</li>
-
-<li> Added TimerOutput::reset to remove the collected information so far and
-added a new frequency TimerOutput::never to only output information if
-triggered by print_summary().
-<br>
-(Timo Heister, 2013/03/20)
-</li>
-
-<li> Changed: FEValuesExtractors::Scalar, FEValuesExtractors::Vector and
-FEValuesExtractors::SymmetricTensor could not be default constructed, and
-consequently one could not easily put them into arrays (where they would
-be default constructed when changing the size, and later assigned useful
-values). These classes can now be default constructed to invalid
-values, but can of course not be used in any useful way.
-<br>
-(Wolfgang Bangerth, 2013/03/15)
-</li>
-
-<li> Fixed: FETools::interpolation_difference did not work with PETSc.
-This is now fixed.
-<br>
-(Timo Heister, 2013/03/01)
-</li>
-
</ol>
projects / dealii.git / commitdiff