Installation/Linux/OpenFOAM-1.7.1/Ubuntu

From OpenFOAMWiki

1 Introduction

This page is dedicated to explaining how to install OpenFOAM OF Version 171.png in Ubuntu.

If you do not yet feel comfortable using Linux, then perhaps you better first read the page Working with the Shell and train a bit with the shell/terminal environments, so you can have a better perception of the steps shown below.


2 Copy-Paste steps

A few notes before you start copy-pasting:

  1. Lines that start with # don't have to be copy-pasted. They are just comments to let you know what's going on.
  2. One wrong character is enough for breaking this guide, so make sure you can read the characters properly or that the installed language system does not break the copied characters!


2.1 Ubuntu 12.04

Here you have at least two choices:

  • You can install the Deb packages, which provide a quick and easy way for having a working installation of OpenFOAM 1.7.1. This is the quickest solution for beginners and instructions are provided here: Ubuntu Deb Pack Installation
  • You can install from source, by either:
    • Following the official instructions from here: Source Pack Installation - Caution: these instructions are outdated for Ubuntu 12.04.
    • Or by following the detailed step-by-step instructions below...


Discussion thread where you can ask questions about these steps: none so far.

Steps:

  1. Switch to root mode (administrator), to install the necessary packages:
    sudo -s
    • If the 'sudo' command tells you're not in the sudoers list, then run:
      su -
  2. Install the necessary packages:
    apt-get install build-essential cmake flex bison zlib1g-dev gnuplot libreadline-dev \
    libncurses-dev libxt-dev gcc-4.5 g++-4.5 binutils-dev
  3. Now exit from the root mode:
    exit
  4. Download and unpack (here you can copy-paste all in single go):
    #OpenFOAM downloading and installation
    cd ~
    mkdir OpenFOAM
    cd OpenFOAM
    wget "http://downloads.sourceforge.net/foam/OpenFOAM-1.7.1.gtgz?use_mirror=mesh" -O OpenFOAM-1.7.1.tgz
    wget "http://downloads.sourceforge.net/foam/ThirdParty-1.7.1.gtgz?use_mirror=mesh" -O ThirdParty-1.7.1.tgz
     
    tar -xzf OpenFOAM-1.7.1.tgz 
    tar -xzf ThirdParty-1.7.1.tgz 
     
    #fix 'settings.sh' file
    wget "https://raw.github.com/OpenCFD/OpenFOAM-1.7.x/master/etc/settings.sh" -O OpenFOAM-1.7.1/etc/settings.sh
  5. For building OpenFOAM itself, it depends on whether you have installed the i386 or x86_64 architecture of Ubuntu. To check this, run:
    uname -m

    Now, accordingly:

    • For i386:
      #update rules' files
      wget "https://raw.github.com/OpenFOAM/OpenFOAM-2.1.x/master/wmake/rules/linuxGcc45/c" -O wmake/rules/linuxGcc/c
      wget "https://raw.github.com/OpenFOAM/OpenFOAM-2.1.x/master/wmake/rules/linuxGcc45/c++" -O wmake/rules/linuxGcc/c++
       
      #fix the rules' files
      sed -i -e 's/gcc/\$(WM_CC)/' wmake/rules/linuxGcc/c
      sed -i -e 's/g++/\$(WM_CXX)/' wmake/rules/linuxGcc/c++
       
      #here you can change 4 to the number of cores you've got
      source $HOME/OpenFOAM/OpenFOAM-1.7.1/etc/bashrc WM_NCOMPPROCS=4 WM_MPLIB=OPENMPI WM_ARCH_OPTION=32
      export WM_CC='gcc-4.5'
      export WM_CXX='g++-4.5'
    • For x86_64:
      #update rules' files
      wget "https://raw.github.com/OpenFOAM/OpenFOAM-2.1.x/master/wmake/rules/linux64Gcc45/c" -O wmake/rules/linux64Gcc/c
      wget "https://raw.github.com/OpenFOAM/OpenFOAM-2.1.x/master/wmake/rules/linux64Gcc45/c++" -O wmake/rules/linux64Gcc/c++
       
      #fix the rules' files
      sed -i -e 's/gcc/\$(WM_CC)/' wmake/rules/linux64Gcc/c
      sed -i -e 's/g++/\$(WM_CXX)/' wmake/rules/linux64Gcc/c++
       
      #here you can change 4 to the number of cores you've got
      source $HOME/OpenFOAM/OpenFOAM-1.7.1/etc/bashrc WM_NCOMPPROCS=4 WM_MPLIB=OPENMPI
      export WM_CC='gcc-4.5'
      export WM_CXX='g++-4.5'
  6. Save an alias in the personal .bashrc file:
    FULL_SETTINGS="$FOAM_SETTINGS; export WM_CC=gcc-4.5; export WM_CXX=g++-4.5"
    echo "alias of171='source \$HOME/OpenFOAM/OpenFOAM-1.7.1/etc/bashrc ${FULL_SETTINGS}'" >> $HOME/.bashrc
    unset FULL_SETTINGS
    Note: This last line means that whenever you start a new terminal window or tab, you should run the alias command associated to the OpenFOAM 1.7.1 shell environment. In other words, whenever you start a new terminal, you should run:
    of171
    
    For more information on this topic, read section Using aliases to help manage multiple OpenFOAM versions in the page Installation/Working with the Shell.
  7. Now let's build OpenFOAM:
    (Warning: this may take somewhere from 30 minutes to 6 hours, depending on your machine.)
    #Go into OpenFOAM's main source folder
    cd OpenFOAM-1.7.1
     
    # This next command will take a while... somewhere between 30 minutes to 3-6 hours.
    ./Allwmake > make.log 2>&1
     
    #Run it a second time for getting a summary of the installation
    ./Allwmake > make.log 2>&1
  8. To check if everything went well:
    #Check if icoFoam is working
    icoFoam -help
     
    #Edit the file "make.log" and check if there are any error messages
    #Example:
    kwrite make.log
     
    #Create a tarball in case you've seen any errors (it's the first error that matters)
    #or if you don't understand the output
    #and attach the file "make.log.tar.gz" to a post in the designated thread
    tar -czf make.log.tar.gz make.log
    Instructions on how to further diagnose the issue yourself, have a look at the section Common errors when building OpenFOAM from source code in the page FAQ/Installation and Running.
  9. Now, in order to build ParaView 3.8.0 that comes with OpenFOAM, we first need to build a custom version of Qt 4.6.4:
    cd $WM_THIRD_PARTY_DIR
    mkdir -p etc/tools
     
    wget "https://raw.github.com/wyldckat/scripts4OpenFOAM3rdParty/master/getQt"
    wget "https://raw.github.com/OpenFOAM/ThirdParty-2.1.x/master/makeQt" -O makeQt
    wget "https://raw.github.com/OpenFOAM/ThirdParty-2.1.x/master/etc/tools/QtFunctions" \
      -O etc/tools/QtFunctions
    wget "https://raw.github.com/OpenFOAM/ThirdParty-2.1.x/master/etc/tools/ThirdPartyFunctions" \
      -O etc/tools/ThirdPartyFunctions
     
    sed -i -e 's=\-opensource =-opensource -stl =' makeQt
     
    chmod +x getQt
    chmod +x makeQt
     
    ./getQt
     
    #fix the defaults for Qt not to use gcc or g++ by default
    sed -i -e 's/= gcc/= gcc-4.5/' qt-everywhere-opensource-src-4.6.4/mkspecs/common/g++.conf
    sed -i -e 's/= g++/= g++-4.5/' qt-everywhere-opensource-src-4.6.4/mkspecs/common/g++.conf
     
    ./makeQt 4.6.4 > mkqt.log 2>&1
  10. Now to build ParaView 3.8.0:
    #Fix one of the files
    sed -i -e 's=ptrdiff_t=std::ptrdiff_t=' paraview-3.8.0/VTK/Utilities/vtkmetaio/metaUtils.cxx
     
    #make sure that Qt libraries are packed along with ParaView
    echo "addCMakeVariable DEVELOPMENT_INSTALL_QT_LIBS:BOOL=ON" >> tools/makeParaViewFunctions
    echo "addCMakeVariable CMAKE_C_COMPILER:FILEPATH=/usr/bin/gcc-4.5" >> tools/makeParaViewFunctions
    echo "addCMakeVariable CMAKE_CXX_COMPILER:FILEPATH=/usr/bin/g++-4.5" >> tools/makeParaViewFunctions
     
    #build ParaView 3.8.0
    ./makeParaView -qmake ${WM_THIRD_PARTY_DIR}/platforms/$WM_ARCH$WM_COMPILER/qt-4.6.4/bin/qmake \
      > mkPV.log 2>&1
     
    #build the OpenFOAM reader for ParaView
    export PATH=${WM_THIRD_PARTY_DIR}/platforms/$WM_ARCH$WM_COMPILER/qt-4.6.4/bin:$PATH
    cd $FOAM_UTILITIES/postProcessing/graphics/PV3FoamReader
     
    #hack the file that will enforce that libOpenFOAM.so is loaded when needed
    sed -i -e 's/LIB_LIBS = /LIB_LIBS = \-lOpenFOAM /' vtkPV3Readers/Make/options
     
    ./Allwclean
    ./Allwmake
     
    #last but not least, remove the old settings file for ParaView
    rm ~/.config/ParaView/ParaView3.8.0.ini
  11. Now you can go read the User Guide, which is located at $HOME/OpenFOAM/OpenFOAM-1.7.1/doc/Guides-a4/UserGuide.pdf.


Reminder: Whenever you start a new terminal window or tab, you should run the alias command associated to the OpenFOAM 1.7.1 shell environment. In other words, run the following command whenever you start a new terminal:
of171
For more information on this topic, read section Using aliases to help manage multiple OpenFOAM versions in the page Installation/Working with the Shell.


Discussion thread where you can ask questions about these steps: none so far.