[linox]

I'm using OpenFoam-3.0.1 for simulations and it was working fine until I upgraded from Ubuntu 14 to 16.04 LTS. I got the following error when trying to run a simulation: error while loading shared libraries: libmpi.so.1: cannot open shared object file: No such file or directory


I have tried the following suggested steps to get OpenFoam working again:-

#Go into OpenFOAM's main source folder
cd $WM_PROJECT_DIR

#Change how the flex version is checked
find src applications -name "*.L" -type f | xargs sed -i -e 's=\(YY\_FLEX\_SUBMINOR\_VERSION\)=YY_FLEX_MINOR_V ERSION < 6 \&\& \1='
file:///home/hp/OpenFOAM/OpenFOAM-3.0.1/logs.tar.gz


This seems to have solve the problem but gave rise to a new problem:

Segmentation fault (core dumped)


I have tried several suggested steps to resolve this new problem to no avail. These include:


sudo apt-get clean
sudo apt-get check
sudo apt-get autoremove
sudo apt-get update
sudo apt-get upgrade

I also run Allwmake (Attached) to search for clues but got more confused

The first error line reads

/home/hp/OpenFOAM/OpenFOAM-3.0.1/applications/utilities/mesh/manipulation/createBaffles
In file included from lnInclude/CGALTriangulation3Ddefs.H:41:0,
from DelaunayMeshTools/DelaunayMeshTools.H:45,
from DelaunayMeshTools/DelaunayMeshTools.C:26:
lnInclude/CGALTriangulation3DKernel.H:36:43: fatal error: CGAL/Delaunay_triangulation_3.h: No such file or directory
compilation terminated.
/home/hp/OpenFOAM/OpenFOAM-3.0.1/wmake/rules/General/transform:8: recipe for target '/home/hp/OpenFOAM/OpenFOAM-3.0.1/platforms/linux64GccDPInt32Opt/applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/DelaunayMeshTools/DelaunayMeshTools.o' failed
make[2]: *** [/home/hp/OpenFOAM/OpenFOAM-3.0.1/platforms/linux64GccDPInt32Opt/applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/DelaunayMeshTools/DelaunayMeshTools.o] Error 1

I would appreciate any help towards resolve this issue. I will remove and reinstall Openfoam as a last resort.


Thanks

Patrick

[Tobi]

Hi Patrick,

if you build FOAM with older libraries, it is clear that during the update of ubuntu, the old libraries are replaced by new ones (see flex etc.). However, your compilation is based on the old libraries so this will not work anyway. You have to recompile your code with the usage of the new libraries. Sometimes it happens that libraries are also renamed and you have to provide a symbolic link. However, I would clean everything and recompile it. In addition, switch to the latest FOAM version to have bug-fixes included. If you are working in two-phase flows I only can recommend it.

[linox]

Originally Posted by Tobi

Hi Patrick,

if you build FOAM with older libraries, it is clear that during the update of ubuntu, the old libraries are replaced by new ones (see flex etc.). However, your compilation is based on the old libraries so this will not work anyway. You have to recompile your code with the usage of the new libraries. Sometimes it happens that libraries are also renamed and you have to provide a symbolic link. However, I would clean everything and recompile it. In addition, switch to the latest FOAM version to have bug-fixes included. If you are working in two-phase flows I only can recommend it.

Hi Tobias

Thanks for responding. I will follow you recommendation to swtich to the latest OF version. I hope for a smooth switch.

Thanks