[KDuby17]

I am installing dsmcFOAM+ found on the hyStrath GitHub repository (https://hystrath.github.io/). I have been following the installation instructions on the same repository https://hystrath.github.io/installation/:

One note is that

sudo apt-get install qt4-dev-tools libqt4-dev libqt4-opengl-dev freeglut3-dev libqtwebkit-dev

does not work on Unbuntu 20.04LTS. This may or may not be the issue.

Before doing Step #5. I add OpenFoam-v1706's bashrc by adding

source $HOME/OpenFOAM/OpenFOAM-v1706/etc/bashrc

at the end of my $Home/.bashrc and then source ~/.bashrc.

When I first did Step #5 as direct, the installation Step #6 failed, because wmkdep could not find the header files. When using foamInstallationTest, I get the icoFoam not installed error. Using this forum

https://www.cfd-online.com/Forums/openfoam-installation/229950-icofoam-not-installed.html

one solution is to use:

./Allwmake -j -s -l

but the icoFoam error still persists. I also installed the relevant Qt packages/libraries for Ubuntu 20.04LTS and there is no difference.


I am not sure what else to do.

[AlexanderCushen]

I recently went through the same installation process and ran into some problems, but not the same as these. For me, installing the correct version of gcc was the largest barrier -- when you type "gcc --version" into terminal, does it show a correct installation?

It also sounds like you may have read these instructions, but if not, I would recommend verifying each step of this guide before moving onto the later steps on Hystrath.

Let me know how it goes!

[KDuby17]

I forgot about this post. Vincent at the hyStrath Github was able to help. It was the wrong version of the GCC. However, Vincent gave me the following commands to get QT4 packages/libraries installed:

sudo add-apt-repository ppa:rock-core/qt4
sudo apt update

I think installing one of the libraries/packages is undoing/corrupting the version downgrade in the first step because I encountered the same issues installing dsmcFOAM on other machines. I just rerun the following after Step 4:

 sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-7 7
 sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-7 7
 sudo update-alternatives --config gcc
 sudo update-alternatives --config g++

For the first two commands, the terminal returns a message about a force installation because of a broken link. After that, OpenFOAM compiles without any critical errors. On the VM in question, I did get a failure on the cfd-module because it was looking for some files for the dsmc-module, but succeeded the second time. Though I have not encountered this error again.