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-
- <h2>News on <acronym>deal.II</acronym></h2>
-
- <p>
- This page lists news and announcements on
- <acronym>deal.II</acronym> in reverse chronological order. If you
- send us extensions to the library, please feel free to also send a
- patch to this file such that we can announce your contributions in
- your own words.
- </p>
-
- <p>
- Please refer to the archive of the <a target="_top"
- href="http://www.dealii.org/mail.html">deal.II
- mailing list</a> for additional news.
- </p>
-
-
- <p>
- <dt><strong>Recent changes</strong></dt>
- <dd>
- Changes in the library since the last major release are
- <strong><a href="../doxygen/deal.II/changes_after_8_1.html">here.</a></strong>
- </dd>
- </p>
-
-
- <dl>
- <dt>
- <strong style="color:red">2013/12/24: Version 8.1 released</strong>
- </dt>
- <dd>
- deal.II version 8.1 was released today. A full list of changes can be
- found <a href="../doxygen/deal.II/changes_between_8_0_and_8_1.html"
- target="body">here</a>.
- <br>
- deal.II can be downloaded at
- <a href="https://code.google.com/p/dealii/downloads/list"
- target="_top">this site</a>.
- </dd>
-
- <dt>
- <strong>2013/12/18: step-26 for the heat equation </strong>
- </dt>
- <dd>
- step-26 fills a long-standing gap: There was no tutorial
- program solving the heat equation. There was also no tutorial
- showing in relatively easy terms how to do adaptive meshes
- in time dependent problems. This program fills both of these
- needs.
- </dd>
-
- <dt>
- <strong>2013/11/01: step-42 solves an elasto-plastic contact problem </strong>
- </dt>
- <dd>
- step-42, written by Jörg Frohne, Timo Heister and Wolfgang
- Bangerth, shows how to solve an elasto-plastic contact problem.
- The program is an extension of step-41 to a much more complex
- equation (nonlinear elasto-plasticity) and also demonstrates
- how to compute solutions for such problems in parallel.
- </dd>
-
- <dt>
- <strong>2013/10/01: step-51 implements an HDG method </strong>
- </dt>
- <dd>
- step-51, contributed by Martin Kronbichler and Scott Miller,
- implements a hybridized discontinuous Galerkin method for the scalar
- convection-diffusion equation. The method uses standard DG terms for
- describing the element interior but couples the local sub-problems
- using face elements. The local contribution is eliminated from the
- global linear system by a static condensation process.
- </dd>
-
- <dt>
- <strong style="color:red">2013/07/24: Version 8.0 released</strong>
- </dt>
- <dd>
- deal.II version 8.0 was released today. This is a major new
- release, featuring the conversion of the configuration and
- build system to <a href="http://www.cmake.org/">CMake</a>,
- support for parallel computations with more than 4 billion
- unknowns, and many more. A full list of changes can be
- found <a href="../doxygen/deal.II/changes_between_7_3_and_8_0.html"
- target="body">here</a>.
- <br>
- deal.II can be downloaded at
- <a href="https://code.google.com/p/dealii/downloads/list"
- target="_top">this site</a>.
- </dd>
-
- <dt>
- <strong>2013/06/05: 64-bit version of deal.II</strong>
- </dt>
- <dd>
- Because the global dof index variables in deal.II were of type
- unsigned int, it was not possible to create a dof_handler with more than
- 4.3 billions of unknowns. The 64-bit version of deal.II uses unsigned long
- long int and thus, allows for 18e18 unknowns.
- </dd>
-
-
- <dt>
- <strong>2013/03/07: Build system switched to CMake</strong>
- </dt>
- <dd>
- After having used Autoconf as the configuration and build system
- since the beginning of deal.II in 1997, we have now switched to
- <a href="http://www.cmake.org/">CMake</a>. This implementation,
- contributed by Matthias Maier of Heidelberg University, has taken
- more than half a year, consists of more than 10,000 lines, and
- touches every aspect of the installation process. It provides a more
- modern interface to and more reliable way of interacting with other
- packages. Furthermore, it no longer relies on shell scripts and
- therefore integrates more easily with integrated development
- environments as well as Microsoft Windows without Cygwin.
- </dd>
-
- <dt>
- <strong style="color:red">2013/02/27: Version 7.3 released</strong>
- </dt>
- <dd>
- Version 7.3.0 was released today. This release provides one new
- tutorial, work on parallel linear algebra, the new FE_Q_DG0 element,
- and a large number of enhancements and bug fixes throughout the
- entire library. A complete list of new features is
- found <a href="../doxygen/deal.II/changes_between_7_2_and_7_3.html"
- target="body">here</a>.
- </dd>
-
- <dt>
- <strong style="color:red">2012/09/03: Version 7.2 released</strong>
- </dt>
- <dd>
- Version 7.2.0 was released today. This release provides four
- new tutorial programs, a framework for matrix-free
- computations, and a large number of enhancements and bug fixes
- throughout the entire library. A complete list of new
- features is found <a
- href="../doxygen/deal.II/changes_between_7_1_and_7_2.html" target="body">here</a>.
- </dd>
-
-
- <dt>
- <strong>2012/06/06: step-43 — an efficient solver for
- two-phase flow</strong>
- </dt>
- <dd>
- The step-21 tutorial program was the first program in the
- deal.II tutorial to demonstrate the solution of two-phase flow
- problems, but it suffered from the fact that it was very
- slow. step-43 demonstrates some of the techniques that can be
- used to make solvers for such problems more efficient and
- accurate.
- </dd>
-
-
- <dt>
- <strong>2012/06/03: New step-15</strong>
- </dt>
- <dd>
- Step-15 used to be a program that demonstrated techniques for solving
- a rather quirky, nonlinear, 1d problem. It was an interesting problem,
- but it served little purpose in teaching deal.II or in demonstrating
- nonlinear solution techniques. It has now been replaced by a more
- illustrative example, contributed in large part by Sven Wetterauer, in
- which we solve the nonlinear elliptic minimal surface equation using a
- Newton iteration.
- </dd>
-
-
- <dt>
- <strong>2012/05/05: Matrix-free implementation framework</strong>
- </dt>
- <dd>
- A matrix-free framework has been contributed by Katharina
- Kormann and Martin Kronbichler. The implementation is memory
- efficient and includes parallelism via MPI for distributed
- meshes, threads for shared-memory computations, and usage of
- processors' vector units. The two new tutorial programs step-37
- (multigrid solver) and step-48 (nonlinear wave equation with
- distributed grid) demonstrate the new features.
- </dd>
-
-
- <dt>
- <strong>2012/04/02: step-44 — a finite strain
- elasticity solver</strong>
- </dt>
- <dd>
- step-44, contributed by Andrew McBride and Jean-Paul
- Pelteret, demonstrates one approach to modelling large
- deformations of nearly-incompressible elastic solids. The
- elastic response is governed by a non-linear, hyperelastic
- free-energy function. The geometrical response is also
- nonlinear, i.e., the program considers finite deformations.
- </dd>
-
-
- <dt>
- <strong>2012/04/02: step-41 solves the obstacle problem</strong>
- </dt>
- <dd>
- step-41, a program contributed by Jörg Frohne, shows
- how to solve the obstacle problem. This problem describes
- the deformation of a body subject to an inequality
- constraint that arises from the fact that the deformation is
- constrained by contact of the body with some external
- obstacle. The program uses the primal-dual active set method
- to solve this problem.
- </dd>
-
-
- <dt>
- <strong style="color:red">2011/10/09: Version 7.1 released</strong>
- </dt>
- <dd>
- Version 7.1.0 was released today. This release provides two
- new tutorial programs and many smaller enhancements
- throughout the entire library. A complete list of new
- features is found <a
- href="../doxygen/deal.II/changes_between_7_0_and_7_1.html" target="body">here</a>.
- </dd>
-
-
- <dt>
- <strong>2011/10/06: step-32, a massively parallel thermal
- convection solver</strong>
- </dt>
- <dd>
- Long in the making, the step-32 tutorial program
- demonstrates how to solve the Boussinesq equations
- describing thermal convection on large numbers of
- processors.
- </dd>
-
-
- <dt>
- <strong>2011/04/30: step-46 demonstrates coupling different models
- on different parts of the domain</strong>
- </dt>
- <dd>
- step-46 shows how to couple different models defined on subsets of
- the domain, in this case Stokes flow around an elastic solid. The
- trick here is that variables (here the flow velocity and pressure,
- and the solid displacement) do not live on the entire domain, but
- only on a part. The point of the program is how to represent this in
- source code.
- </dd>
-
-
- <dt>
- <strong style="color:red">2011/01/09: 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>
- </dt>
- <dd>
- The new step-38 program, contributed by Andrea Bonito and M. Sebastian
- Pauletti, shows how to discretize and solve partial differential
- equations posed on curved manifolds embedded in higher dimensional
- spaces.
- </dd>
-
- <dt>
- <strong>2010/12/20: Graphical frontend to edit parameter files</strong>
- </dt>
- <dd>
- Contributed by Martin Steigemann, deal.II now has Qt based graphical
- user interface to edit input parameter files for
- the <code>ParameterHandler</code> class. The executable is located in
- <code>lib/bin/dealii_parameter_gui</code>.
- </dd>
-
- <dt>
- <strong>2010/10/25: New directory and library structure</strong>
- </dt>
- <dd>
- 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.
- </dd>
-
- <dt>
- <strong>2010/10/23: Distributed mesh functionality available</strong>
- </dt>
- <dd>
- After more than 2 years of work by Timo Heister, Martin Kronbichler,
- and Wolfgang Bangerth, and with help by Carsten Burstedde, 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 a documentation module,
- an accompanying paper, as well as in the new step-40 tutorial program.
- </dd>
-
- <dt>
- <strong style="color:red">2010/07/18: Version 6.3.1 released</strong>
- </dt>
- <dd>
- Version 6.3.1 was released today. This release addresses a number of
- problems in release 6.3.0 related to compatibility with certain
- compilers, operating systems, and versions of external libraries.
- A list of changes between
- versions 6.3.0 and 6.3.1 can be found <a
- href="../doxygen/deal.II/changes_between_6_3_0_and_6_3_1.html" target="body">here</a>.
- </dd>
-
- <dt>
- <strong>2010/06/25: deal.II on Facebook</strong>
- </dt>
- <dd>
- We built a facebook page titled <b>deal.II</b> today. Please, feel free
- to join us there!
- </dd>
-
- <dt>
- <strong style="color:red">2010/06/25: Version 6.3 released</strong>
- </dt>
- <dd>
- Version 6.3.0 was released today, containing several new
- tutorial programs, a new threading framework and a framework
- for assembling linear systems by just providing the local integrals.
- A complete list of changes between
- versions 6.2.0 and 6.3.0 can be found <a
- href="../doxygen/deal.II/changes_between_6_2_and_6_3.html" target="body">here</a>.
- </dd>
-
- <dt>
- <strong>2010/06/24: step-39 solves Poisson's equation with
- the interior penalty discontinuous Galerkin method on
- adaptively refined meshes with multigrid</strong>
- </dt>
- <dd>
- Using the MeshWorker framework, this program highlights the
- fact that loops over meshes are very generic and that
- building matrices and level matrices and evaluating error
- estimates are really the same task.
- </dd>
-
- <dt>
- <strong> 2010/06/24: The Meshworker framework has been released</strong>
- </dt>
- <dd>
- Using its generic loop and the provided auxiliary classes,
- this framework relieves the application programmer from coding
- loops over cells, faces, and subfaces, such that focus can remain
- on implementation of the local integrals.
- </dd>
-
- <dt>
- <strong>2010/06/23: step-45 shows periodic boundary
- conditions</strong>
- </dt>
- <dd>
- Contributed by Markus Bürg, the new tutorial program step-45
- demonstrates an often requested feature: periodic boundary
- conditions.
- </dd>
-
-
- <dt>
- <strong>2010/02/13: New multigrid, new step-16</strong>
- </dt>
- <dd>
- Over the last few months, the multigrid implementation has seen
- significant rewrites, with much of the work done by Bärbel
- Janssen. The goal — now achieved — was to finally fully
- support multigrid also for continuous finite elements on adaptively
- refined meshes (uniformly refined meshes and discontinuous elements
- have worked for a long time). As part of this process, step-16 has
- been rewritten and now solves the same problem step-6 solves, just
- with a multigrid solver.
- </dd>
-
-
- <dt>
- <strong>2009/10/07: step-35 shows the solution of the
- Navier-Stokes equations</strong>
- </dt>
- <dd>
- Step-35, a tutorial program contributed by Abner
- Salgado-Gonzalez, shows an implementation of a projection
- scheme for the numerical solution of the Navier-Stokes
- equations.
- </dd>
-
-
- <dt>
- <strong>2009/07/30: New tutorial program step-36</strong>
- </dt>
- <dd>
- The new step-36 tutorial program, contributed by Toby D. Young and
- Wolfgang Bangerth, shows how to solve eigenvalue problems, using the
- Schrödinger equation as an example.
- </dd>
-
-
- <dt>
- <strong style="color:red">2009/06/05: Version 6.2.1 released</strong>
- </dt>
- <dd>
- deal.II version 6.2.0 contained a couple of minor but
- annoying bugs in its interaction with PETSc. The
- documentation package also did not include any typeset
- formulas. Release 6.2.1 corrects these mistakes.
- A complete list of changes between
- versions 6.2.0 and 6.2.1 can be found <a
- href="../doxygen/deal.II/changes_between_6_2_0_and_6_2_1.html" target="body">here</a>.
- </dd>
-
- <dt>
- <strong style="color:red">2009/04/27: Version 6.2 released</strong>
- </dt>
- <dd>
- Version 6.2.0 was released today!
- A complete list of changes between
- versions 6.1.0 and 6.2.0 can be found <a
- href="../doxygen/deal.II/changes_between_6_1_and_6_2.html" target="body">here</a>.
- </dd>
-
- <dt>
- <strong>2009/04/14: New tutorial program step-34</strong>
- </dt>
- <dd>
- step-34, written by Luca Heltai, demonstrates the ability of
- deal.II to discretize and solve boundary integral equations
- on curved manifolds.
- </dd>
-
-
- <dt>
- <strong>2008/12/05: Support for meshes embedded in
- higher dimensions</strong>
- </dt>
- <dd>
- Based on work by Cataldo Manigrasso and Luca Heltai
- developed over the last few months on a branch, deal.II now
- supports meshes that are embedded in higher space
- dimensions. This allows, for example, to solve equations on
- the surface of a sphere (e.g. to use boundary element
- methods for exterior problems).
- </dd>
-
-
- <dt>
- <strong>2008/11/14: New tutorial program step-31</strong>
- </dt>
- <dd>
- The latest tutorial program, step-31, is contributed by
- Martin Kronbichler and Wolfgang Bangerth and shows the
- solution of the Boussinesq approximation to thermally driven
- convection in an incompressible fluid.
- </dd>
-
-
- <dt>
- <strong>2008/09/10: New tutorial program step-28</strong>
- </dt>
- <dd>
- step-28, contributed by Yaqi Wang, illustrates the solution
- of a coupled system of diffusion equations relevant to
- nuclear reactor physics where we use different meshes for
- different components of a vector-valued solution.
- </dd>
-
-
- <dt>
- <strong>2008/08/21: <acronym>deal.II</acronym> now exceeds
- of 400,000 lines of code</strong>
- </dt>
- <dd>
- Since today, <acronym>deal.II</acronym> has more than 400,000
- lines of code. The rate of growth continues to be close on
- par with the 3000 lines of code per month that we have had
- over many years already, with no signs of abating activity!
- </dd>
-
-
- <dt>
- <strong>2008/07/08: Support for anisotropic mesh refinement</strong>
- </dt>
- <dd>
- Contributed by Tobias Leicht as well as Ralf Hartmann, deal.II
- now supports anisotropic refinement of meshes. This functionality
- is explained in the step-30 tutorial program.
- </dd>
-
-
- <dt>
- <strong style="color:red">2008/05/28: Version 6.1 released</strong>
- </dt>
- <dd>
- Version 6.1.0 was released today!
- A complete list of changes between
- versions 6.0.0 and 6.1.0 can be found <a
- href="../doxygen/deal.II/changes_between_6_0_and_6_1.html" target="body">here</a>.
- </dd>
-
- <dt>
- <strong>2008/05/23: step-33 illustrates the Euler equations</strong>
- </dt>
- <dd>
- <a href="../doxygen/deal.II/step_33.html">step-33</a>,
- a tutorial program written mostly by David Neckels, illustrates how
- the Euler equations of compressible inviscid gas dynamics can be
- solved. More generally, the program also provides a framework for
- the solution of arbitrary hyperbolic, nonlinear conservation laws.
- </dd>
-
- <dt>
- <strong>2008/03/28: step-22 demonstrates solving the Stokes
- equations</strong>
- </dt>
- <dd>
- The new <a href="../doxygen/deal.II/step_22.html">step-22</a>
- tutorial program, written by Martin Kronbichler and Wolfgang
- Bangerth, shows how to solve, and in particular how to solve
- efficiently, the Stokes equations that describe viscous
- incompressible fluid flow.
- </dd>
-
- <dt>
- <strong>2007/10/31: step-29 tutorial program added</strong>
- </dt>
- <dd>
- Contributed by Moritz Allmaras, the <a
- href="../doxygen/deal.II/step_29.html">step-29</a> tutorial program
- explains how problems involving complex numbers can be treated in
- <acronym>deal.II</acronym>. In the example,
- the complex-valued solution to a Helmholtz equation is split into
- real and imaginary parts and a vector-valued finite element field
- is used to discretize them seperately. The program also demonstrates
- how quantities derived from the finite element solution can be directly
- included in the output by using the new <code>DataPostprocessor</code>
- class.
- </dd>
-
- <dt>
- <strong style="color:red">2007/09/07: Version 6.0 released</strong>
- </dt>
- <dd>
- Version 6.0.0 was released today!
- A complete and long list of changes between
- versions 5.2.0 and 6.0.0 can be found <a
- href="5.2.0-vs-6.0.0.html" target="body">here</a>.
- </dd>
-
- <dt>
- <strong>2007/08/09: step-27 demonstrates hp technology</strong>
- </dt>
- <dd>
- The new <a href="../doxygen/deal.II/step_27.html">step-27</a>
- tutorial program finally demonstrates how to use the
- hp finite element technology that has been part of deal.II for some
- 18 months now. It solves a Laplace equation with hp finite elements
- and shows how to set finite element degrees, assemble matrices on
- cells with varying polynomial degrees, and how to compute a simple
- criterion for estimating the local Sobolev smoothness of a function.
- </dd>
-
- <dt>
- <strong>2007/07/16: Wilkinson Prize</strong>
- </dt>
- <dd>
- The principal authors of <acronym>deal.II</acronym>—Wolfgang
- Bangerth, Ralf Hartmann and Guido Kanscht—have received the <a
- href="http://www.mcs.anl.gov/WilkinsonPrize/">J. H. Wilkinson
- Prize for Numerical Software</a> for their creation of and work on
- the deal.II library. The prize committee particularly noted the
- reliability and usability of the software and the quality of the
- documentation.
- <p>
- We want to take the opportunity to thank our user community for their
- support over the years that kept us working on this software. We
- consider this award motivation to continue this work!
- </dd>
-
- <dt>
- <strong>2007/02/09: Support for previously unorientable meshes</strong>
- </dt>
- <dd>
- Up to now, in 3D only 'orientable' meshes could be used in
- deal.II, where all lines are in standard orientation and the
- faces can be either in standard orientation or with a
- reversed normal. This has been generalized such that now all
- hexahedral meshes can be used.
- </dd>
-
- <dt>
- <strong>2006/10/30: step-21 is finished</strong>
- </dt>
- <dd>
- Step-21 demonstrates the time dependent flow of a multiphase fluid
- through a porous medium. It is an extension of step-20, using a mixed
- formulation and block solvers.
- </dd>
-
- <dt>
- <strong>2006/10/03: step-23/24/25 are finished</strong>
- </dt>
- <dd>
- The step-23, step-24 and step-25 tutorial programs have been added,
- demonstrating how to solve the time dependent wave equation
- and a nonlinear variant of it, the sine-Gordon equation.
- </dd>
-
- <dt>
- <strong>2006/08/24: <acronym>deal.II</acronym> is now part of the
- SPEC CPU 2006 benchmark</strong>
- </dt>
- <dd>
- A modified version of the <acronym>deal.II</acronym> library and the
- step-14 tutorial program has been incorporated into the industry
- standard <a href="http://www.spec.org/cpu2006/" target="_top">SPEC CPU 2006</a>
- benchmark testsuite that is used to determine the speed of
- computers. It is part of the floating point testsuite <a
- href="http://www.spec.org/cpu2006/CFP2006/" target="_top">CFP2006</a> as benchmark
- <a
- href="http://www.spec.org/cpu2006/Docs/447.dealII.html" target="_top">447.dealII</a>.
- <p>
- The inclusion of our software into an industry
- standard benchmark testsuite will lead to better support of compilers
- and machines for the kind of program we write, in particular for
- unstructured hierarchical mesh computations. This will in turn
- help make our codes run faster on future systems.
- </dd>
-
- <dt>
- <strong>2006/2/12: step-20 is finished</strong>
- </dt>
- <dd>
- The new step-20 tutorial program shows how to use Raviart-Thomas
- elements to solve a mixed formulation of the Laplace equation. It
- also demonstrates the use of block matrices and vectors, and how they
- can be used to define more complex solvers and preconditioners
- working on the Schur complement.
- </dd>
-
- <dt>
- <strong>2006/1/3-5: First User Workshop</strong>
- </dt>
- <dd>
- After 8 years of existence, it was time to have the first user
- meeting. During a 3-day workshop held in Heidelberg, topics of
- software development, use of deal.II for applications, and future
- directions were discussed by about a dozen developers and users.
- </dd>
-
- <dt>
- <strong>2005/12/20: hp functionality merged</strong>
- </dt>
- <dd>
- After the code had been developed and maintained on a branch for 3
- years by Oliver Kayser-Herold and Wolfgang Bangerth, it has now been
- merged into the main development, and will be available for the next
- release.
- </dd>
-
- <dt>
- <strong style="color:red">2005/09/17: Version 5.2 released</strong>
- </dt>
- <dd>
- Version 5.2.0 was released today!
- A complete and long list of changes between
- versions 5.1.0 and 5.2.0 can be found <a
- href="5.1.0-vs-5.2.0.html" target="body">here</a>.
- </dd>
-
- <dt>
- <strong>2005/09/09: Two more tutorial programs</strong>
- </dt>
- <dd>
- Two more tutorial programs, step-18 and step-19, are now
- available. step-18 shows how to solve time-dependent but quasi-static
- elasticity programs in parallel. step-19 demonstrates some data
- handling and parameter file techniques.
- </dd>
-
- <dt>
- <strong>2005/03/29: <acronym>deal.II</acronym> now has a Wiki</strong>
- </dt>
- <dd>
- Hosted by Luca Heltai, there is now a wiki. See the link from the
- <acronym>deal.II</acronym> front page. Users of
- <acronym>deal.II</acronym> are encouraged to visit it, and,
- as is usual with wikis, edit pages freely and post their
- experiences and code snippets they want others to know about.
- </dd>
-
- <dt>
- <strong>2005/03/07: Function parser library integrated</strong>
- </dt>
- <dd>
- Luca Heltai has contributed code that integrates a third
- party <a
- href="http://warp.povusers.org/FunctionParser/">function
- parser library</a>) that takes a string describing a
- mathematical function, and returns an object that can be used in
- all places where function objects are used in deal.II.
- </dd>
-
- <dt>
- <strong style="color:red">2004/12/24: Version 5.1 released</strong>
- </dt>
- <dd>
- Version 5.1.0 was released today!
- A complete and long list of changes between
- versions 5.0.0 and 5.1.0 can be found <a
- href="5.0.0-vs-5.1.0.html" target="body">here</a>.
- </dd>
-
- <dt>
- <strong>2004/10/21: Q<sub>r</sub> elements of arbitrary order now
- support hanging node constraints also in 3d</strong>
- </dt>
-
- <dd>
- Lagrange elements previously had hanging node constraint matrices
- hard coded in 3d, which were only available for r=1,2. Thanks to
- code written by Oliver Kayser-Herold, this information is now
- computed on-the-fly, which allows the use of Lagrange elements of
- arbitrary order also in 3d on meshes with hanging nodes.
- </dd>
-
- <dt>
- <strong>2004/05/25: Version 5.0 released</strong>
- </dt>
- <dd>
- Version 5.0.0 was released today!
- A complete and long list of changes between
- versions 4.0.0 and 5.0.0 can be found <a
- href="4.0.0-vs-5.0.0.html" target="body">here</a>.
- </dd>
-
- <dt>
- <strong>2004/03/08: Interfaces to PETSc and METIS</strong>
- </dt>
- <dd>
- In order to support parallel computations, we now have interfaces to
- both the PETSc library for sequential and parallel linear algebra,
- as well as to the METIS library for domain partitioning.
- </dd>
-
- <dt>
- <strong>2004/03/08: MIPSpro compiler version 7.41 supported</strong>
- </dt>
- <dd>
- deal.II now also supports compilation on SGIs by the MIPSpro
- compiler version 7.41.
- </dd>
-
- <dt>
- <strong>2003/06/06: Version 4.0 released</strong>
- </dt>
- <dd>
- After one year, we made it and released Version 4.0.0 today!
- A complete list of changes between
- versions 3.4.0 and 4.0.0 can be found <a
- href="3.4.0-vs-4.0.0.html" target="body">here</a>.
- </dd>
-
- <dt>
- <strong>2003/04/27: <acronym>deal.II</acronym> now exceeds
- of 200,000 lines of code</strong>
- </dt>
- <dd>
- Since today, <acronym>deal.II</acronym> has now more than 200,000
- lines of code. The rate of growth continues to be close to
- 3000 lines of code per month.
- </dd>
-
- <dt>
- <strong>2003/01/24: deal.II runs on AIX 5.1</strong>
- </dt>
- <dd>
- Using gcc3.2, deal.II can now also be compiled on AIX systems
- with the PowerPC chip.
- </dd>
-
- <dt>
- <strong>2002/12/18: deal.II runs on Mac OS X 10.2</strong>
- </dt>
- <dd>
- Some changes have been made to allow compiling and running deal.II on
- Mac OS X 10.2 systems.
- </dd>
-
- <dt>
- <strong>2002/12/05: Intel ICC 7.0 compiler supported</strong>
- </dt>
- <dd>
- deal.II now also supports compilation by the recently released
- Intel icc 7.0 compiler.
- </dd>
-
- <dt>
- <strong>2002/06/28: deal.II 64-bit ready</strong>
- </dt>
- <dd>
- deal.II also runs on 64-bit systems without changes, as
- tests on a Sparc machine with Solaris 9 in 64-bit mode have
- shown. We also have reports of people running deal.II on
- IA64 systems.
- </dd>
-
- <dt>
- <strong>2002/06/06: Version 3.4 released</strong>
- </dt>
- <dd>
- Today, version 3.4 of the <acronym>deal.II</acronym> library
- has been released. A complete list of changes between
- versions 3.3.0 and 3.4.0 can be found <a
- href="2002/3.3.0-vs-3.4.0.html" target="body">here</a>.
- </dd>
-
- <dt>
- <strong>2002/05/22: Intel ECC Itanium compiler now supported</strong>
- </dt>
- <dd>
- <code>aclocal.m4</code> has been changed to detect the Intel ECC
- compiler for Itanium systems. The ECC compiler can produce
- optimized code for Intel's new IA-64 architecture.
- </dd>
-
- <dt>
- <strong>2002/03/07: New web home www.dealii.org and new
- email addresses</strong>
- </dt>
- <dd>
- The <acronym>deal.II</acronym> homepage has been moved to <a
- href="http://www.dealii.org"
- target="_top">www.dealii.org</a>. Also the <a
- href="../mail.html">email addresses</a> have been
- changed. Though the old web home and the old addresses will
- be supported for some time we recommend to adjust the
- bookmarks and mail addresses accordingly.
- </dd>
-
- <dt>
- <strong>2002/02/01: Version 3.3 released</strong>
- </dt>
- <dd>
- Today, version 3.3 of the <acronym>deal.II</acronym> library
- has been released. A complete list of changes between
- versions 3.2.0 and 3.3.0 can be found <a
- href="2002/3.2.0-vs-3.3.0.html" target="body">here</a>.
- </dd>
-
- <dt>
- <strong>2002/01/31: <acronym>deal.II</acronym> now consists
- of 160,000 lines of code</strong>
- </dt>
- <dd>
- All <code>.cc</code> and <code>.h</code> files of
- <acronym>deal.II</acronym> now sum up to more than 160,000(!)
- lines of code. <acronym>deal.II</acronym> continues to grow
- with a rate almost constant at 3000 lines of code per month.
- </dd>
-
- <dt>
- <strong>2001/09/28: Version 3.2 released</strong>
- </dt>
- <dd>
- After a long phase of implementation and testing, we today
- released version 3.2 of the <acronym>deal.II</acronym>
- library. There are many changes between version 3.1 and
- release 3.2. A complete list of these changes can be found
- <a href="2001/3.1.0-vs-3.2.0.html" target="body">here</a>.
- </dd>
-
- <dt>
- <strong>2001/07/06: Compaq's cxx compiler supported</strong>
- </dt>
- <dd>
- The present development version now also supports
- compilation by Compaq's cxx compiler. See the <a
- href="../readme.html#prerequisites" target="body">ReadMe</a>
- file for more information on using this compiler.
- </dd>
-
- <dt>
- <strong>2001/06/28: deal.II 3.1.2 released</strong>
- </dt>
- <dd>
- Version 3.1.2 is a bug-fix release based on 3.1. A list of
- changes between the two versions can be found on
- <a href="2001/3.1.1-vs-3.1.2.html" target="body">this
- page</a>.
- </dd>
-
- <dt>
- <strong>2001/05/23: Intel ICC compiler supported</strong>
- </dt>
- <dd>
- The present development version of the library is now fixed
- so that it can also be compiled by
- Intel's ICC C++ compiler for Linux.
- </dd>
-
- <dt>
- <strong>2001/05/17: deal.II 3.1.1 released</strong>
- </dt>
- <dd>
- Version 3.1.1 is a bug-fix release based on 3.1. A list of
- changes between the two versions can be found on
- <a href="2001/3.1.0-vs-3.1.1.html" target="body">this
- page</a>.
- </dd>
-
- <dt>
- <strong>2001/02/26: Support for Subroutines from the Harwell Subroutine
- Library (HSL)</strong>
- </dt>
- <dd>
- The <a href="http://www.hsl.rl.ac.uk/"
- target="_top">Harwell Subroutine Library (HSL)</a> is a
- library that, among much other functionality, offers some
- sparse direct solvers. We have added support for an
- interface to these solvers to the library.
- </dd>
-
- <dt>
- <strong>2001/02/20: Version 3.1 released</strong>
- </dt>
- <dd>
- After a long testing phase, we today released version 3.1 of
- the <acronym>deal.II</acronym> library.
- There are many changes between version 3.0 and release
- 3.1. A complete list of these changes can be found
- <a href="2000/3.0.0-vs-3.1.0.html" target="body">here</a>.
- </dd>
-
- <dt>
- <strong>2000/08/07: deal.II 3.0.1</strong>
- </dt>
- <dd>
- Version 3.0.1 is a bug-fix release based on 3.0. A list of
- changes between the two versions can be found on
- <a href="2000/3.0.0-vs-3.0.1.html" target="body">this
- page</a>.
- (<a href="2000/03.html" target="body">Announcement</a>)
- </dd>
-
- <dt>
- <strong>2000/04/13: deal.II 3.0 announced</strong>
- </dt>
- <dd>
- Today, after 2½ years of development and testing, the
- first public release of the <acronym>deal.II</acronym>
- library was announced (<a href="2000/01.html"
- target="body">full text</a>).
- </dd>
- </dl>
-
-
-</body>
- <!- Some JQuery needs to come after the body ->
- <script src="js/jquery.min.js"></script>
- <script src="js/bootstrap.min.js"></script>
- <script src="js/accordion.js"></script>
+ <body>
+ This page is now part of the top-level project description. See
+ <a target="_top" href="http://dealii.org/news.html">this page</a>.
+ </body>
</html>
projects / dealii-svn.git / commitdiff