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CompileOpenFOAM.md

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How to compile OpenFOAM

I've tried compiling many ways, but below are the instructions that gave me a working copy. There shouldn't be any missing steps, but if something comes across as strange, challenge it!

Compiling OpenFOAM 2.1.1 with the system OpenMPI-1.4.3 and gcc-4.3.4

We're going to use the system OpenMPI and gcc 4.3.4.

Organizing everything

Let's start by making sure all of our files are actually kept in our projects directory rather than our home directory. Wherever I have username, you should substitute in your username (for example, I would use spal1313).

First, let's link a folder in our PROJ directory into our HOME directory:

  • Add export PROJ=/projects/username to your .my.bashrc
  • run source $HOME/.bashrc
  • run mkdir $PROJ/OpenFOAM
  • link the newly made file into your home directory by running ln -s $PROJ/OpenFOAM $HOME/OpenFOAM. You can check that this worked by running touch $HOME/OpenFOAM/test, and if it didn't work, try reversing the last two arguments to ln.

Now, go ahead and download all of the source files onto your machine. I like to create a source directory, but that's just me. tar xvf them into your $HOME/OpenFOAM folder. You should now have $HOME/OpenFOAM/OpenFOAM-2.1.1 and $HOME/OpenFOAM/ThirdParty-2.1.1 folders.

Add the following to the bottom of your .my.bashrc file:

export FOAM_INST_DIR=$HOME/OpenFOAM
foamDotFile=$FOAM_INST_DIR/OpenFOAM-2.1.1/etc/bashrc
[ -f $foamDotFile ] && . $foamDotFile

and run the command source ~/.bashrc .

Prepare the system for programs to be used

Let's now prepare the system to use the needed programs. Create a file named in $HOME/useOpenFOAM.sh and include the following in it:

#!/bin/bash
. /curc/tools/utils/dkinit
use Moab > /dev/null
use Torque > /dev/null
use .zlib-1.2.5 > /dev/null
use .flex-2.5.35 > /dev/null
use .gcc-4.3.4 > /dev/null
use OpenMPI-1.4.3 > /dev/null

Then add source ~/useOpenFOAM.sh to the bottom of your .my.bashrc file.

Tell OpenFOAM to use this system OpenMPI by changing line 84 in $WM_PROJECT_DIR/etc/bashrc to SYSTEMOPENMPI.

Begin the compile

Now, log into a compile node (for example ssh janus-compile1). If you're already in a compile node, run source ~/.bashrc just to be safe.

Run foamSystemCheck. If you get any errors, or your system can't find the file, then something has gone wrong.

Move into the source code by running cd $WM_PROJECT_DIR, and kick off the compile with ./Allwmake 2>&1 | tee make.log.

Testing Everything

Ryan created the following super helpful test instructions:

To test the installation, you can run foamInstallationTest.

Then create a directory for the tutorials within mkdir -p $FOAM_RUN.

Copy the tutorials to the run directory with cp -r $FOAM_TUTORIALS $FOAM_RUN

Try to run laminar flow in a cavity:

  • cd $FOAM_RUN/tutorials/incompressible/icoFoam/cavity
  • blockMesh
  • icoFoam