The following tar-zipped tgz source packs are available for download.
The user should choose a directory location to unpack these files, which will become the installation directory of OpenFOAM. If the installation is for a single user only, or if the user does not have root access to the machine, we would recommend the installation directory is $HOME/OpenFOAM (i.e. a directory OpenFOAM in the user’s home directory). If the installer has root permissions and the installation is for more than one user, one of the ‘standard’ locations can be used, e.g. /usr/local/OpenFOAM, /opt/OpenFOAM, or just /opt.
After the installation directory is chosen (and, if necessary, created), simply copy the 2 source pack files into the directory and unpack using tar xzf <filename>, e.g. from the installation directory:
tar xzf ThirdParty-2.1.1.tgz
OpenFOAM is developed and tested on Linux, but should work with other POSIX systems. OpenFOAM-2.1.1 and ThirdParty-2.1.1 have been tested on the following Linux distributions:
- Ubuntu 10.04 (lucid), 10.10 (maverick), 11.04 (natty), 11.10 (oneiric), 12.04 (precise)
- OpenSuSE 11.3, 11.4 and 12.1
- Fedora 15, 16 and 17
Dependent packages required for Ubuntu can be installed by executing the following command in a terminal:
System versions of the OpenMPI and Scotch libraries can also be installed for Ubuntu, rather than having to compile them from sources:
Dependent packages required for OpenSuSE can be installed by executing the following commands in a terminal:
zypper install cmake libqt4-devel gnuplot
OpenFOAM-2.1.1 also builds on many other and older Linux distributions but the ParaView-3.10.1 version supplied in ThirdParty requires cmake-2.8.2 or higher and Qt-4.6.2 or higher which can be obtained from various repositories for many Linux distributions. To check your system setup, you can execute the foamSystemCheck script, described in “Checking the System” (below).
Dependent packages required for Fedora can be installed by executing the following commands in a terminal:
sudo yum install openmpi openmpi-devel qt-devel qt-webkit-devel zlib-devel
OpenFOAM-2.1.1 also builds on many other and older Linux distributions but the ParaView-3.12.0 version supplied in ThirdParty requires cmake-2.8.2 or higher and Qt-4.6.2 or higher which can be obtained from various repositories for many Linux distributions. To check your system setup, you can execute the foamSystemCheck script, described in “Checking the System” (below).
The environment variable settings are contained in files in an OpenFOAM-2.1.1/etc directory in the OpenFOAM release. e.g. for the case where the installation is in $HOME/OpenFOAM, in:
- if running bash or ksh (if in doubt type echo $SHELL), source the
etc/bashrc file by adding the following line to the end of your
$HOME/.bashrc file: source $HOME/OpenFOAM/OpenFOAM-2.1.1/etc/bashrc
- if running tcsh or csh, source the etc/cshrc file by adding the following
line to the end of your $HOME/.cshrc file: source $HOME/OpenFOAM/OpenFOAM-2.1.1/etc/cshrc
then type “source $HOME/.cshrc” in the current terminal window
OpenFOAM may also be installed in alternative locations. However, the installation directory should be network available (e.g. NFS) if parallel calculations are planned.
The environment variable FOAM_INST_DIR can be used to find and source the appropriate resource file. Here is a bash/ksh/sh example:
[ -f $foamDotFile ] && . $foamDotFile
if ( -f $foamDotFile ) source $foamDotFile
To check your system is ready to build the sources, execute the foamSystemCheck script (in the OpenFOAM-2.1.1/bin directory). If any critical software is missing, or needs updating to a newer version, please contact the system administrator to install the required software before proceeding to the build.
In particular your system will need to include a recent version of gcc (check with gcc --version, we recommend gcc-4.4.? but gcc-4.3.? is sufficient). If the installed version is not recent source pack for newer versions are available from http://gcc.gnu.org/.
To build OpenFOAM you will also need the flex software installed on your system. If that is missing (type flex --version to check), then install it.
Go to the top-level source directory $WM_PROJECT_DIR and execute the top-level build script ./Allwmake. In principle this will build everything, but if problems occur with the build order it may be necessary to update the environment variables and re-execute ./Allwmake.
OpenFOAM uses wmake to perform compilation (building, linking) of its C++ source code into executable code. wmake is called from the Allwmake scripts during the initial build of the complete OpenFOAM project but can be executed directly to update the compilation of any of the OpenFOAM components:
- all invocations can have an optional directory:
wmake libso $FOAM_SRC/finiteVolume
- recursively build all applications in current or specified directory:
wmake all <dir>
- build any single object or executable:
- build any single shared library:
wmake libso <lib dir>
wmake comes with a parallel compilation scheduler, wmakeScheduler, which spawns compilation jobs on free machines. These machines need password-less network access, e.g. using SSH, and a network mounted installation, e.g. using NFS.
wmakeScheduler is set up with environment variables:
- WM_SCHEDULER : the name of the scheduler to use
- WM_HOSTS : the list of cores to use
- WM_NCOMPROCS : the number of parallel builds (usually the size of WM_HOSTS)
- WM_COLOURS : Optional list of colours for the compilation output from the cores.
For example to build on 1 processor of machine aaa and 4 processors of bbb:
export WM_HOSTS="aaa:1 bbb:4"
export WM_NCOMPPROCS=$($WM_SCHEDULER -count)
export WM_COLOURS="black blue green cyan red magenta yellow"
Paraview is the third-party software that we provide for graphical post-processing in OpenFOAM. It’s compilation is automated using a script called makeParaView in the ThirdParty-2.1.1 directory.
To install Paraview, execute the following:
To check your installation setup, execute the foamInstallationTest script (in the OpenFOAM-2.1.1/bin directory). If no problems are reported, proceed to getting started with OpenFOAM; otherwise, go back and check you have installed the software correctly and/or contact your system administrator.
Create a project directory within the $HOME/OpenFOAM directory named <USER>-2.1.1 (e.g. chris-2.1.1 for user chris and OpenFOAM version 2.1.1) and create a directory named run within it, e.g. by typing:
We appreciate that bugs in OpenFOAM are reported so we can fix them. Please refer to the OpenFOAM bugs pages to report bugs.