What is deal.II?
deal.II is a C++ program library targeted at the computational solution of partial differential equations using adaptive finite elements. It uses state-of-the-art programming techniques to offer you a modern interface to the complex data structures and algorithms required.
For the impatient:
Let's say you've unpacked the .tar.gz file into a directory /path/to/dealii/sources. Then configure, compile, and install the deal.II library with:
$ mkdir build
$ cd build
$ cmake -DCMAKE_INSTALL_PREFIX=/path/where/dealii/should/be/installed/to /path/to/dealii/sources
$ make install (alternatively $ make -j<N> install)
$ make test
To build from the repository, execute the following commands first:
$ git clone https://github.com/dealii/dealii
$ cd dealii
Then continue as before.
A detailed ReadME can be found at ./doc/readme.html, ./doc/users/cmake_user.html, or at https://www.dealii.org/.
Getting started:
The tutorial steps are located under examples/ of the installation. Information about the tutorial steps can be found at ./doc/doxygen/tutorial/index.html or at https://www.dealii.org/.
deal.II includes support for pretty-printing deal.II objects inside GDB.
See contrib/utilities/dotgdbinit.py or
the new documentation page (under 'information for users') for instructions
on how to set this up.
License:
Please see the file ./LICENSE.md for details
Further information:
For further information have a look at ./doc/index.html or at https://www.dealii.org.
Continuous Integration Status:
| System | Status | More information |
|---|---|---|
| Indent |  |
using GitHub actions |
| Linux | See https://jenkins.tjhei.info | |
| MacOS | See https://jenkins.tjhei.info | |
| MacOS |  |
See https://github.com/dealii/dealii/actions |
| MSVC |  |
See https://github.com/dealii/dealii/actions |
| Docker |  |
See https://github.com/dealii/dealii/actions |
| CDash |  |
Various builds and configurations on https://cdash.43-1.org/index.php?project=deal.II |
Docker Images:
Docker images based on the Ubuntu operating system are available on Docker Hub. You can use any of the available version (list of available tags) by running, for example:
$ docker run --rm -t -i dealii/dealii:master-focal
The above command would drop you into an isolated environment, in which you
will find the latest version of deal.II (master development branch) installed
under /usr/local.