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[snappyHexMesh] Tutorial crashes: snappyHexMesh floating point exception.

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Old   April 29, 2016, 07:22
Question Tutorial crashes: snappyHexMesh floating point exception.
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I have been trying to run some tutorials with snappyHexMesh but they all crash when snappyHexMesh gets executed.

For example in rotorDisk running ./Allrun i get

Code:
Running blockMesh on /home/jasv/OpenFoam/tutorials/rotorDisk
Running surfaceFeatureExtract on /home/jasv/OpenFoam/tutorials/rotorDisk
Running snappyHexMesh on /home/jasv/OpenFoam/tutorials/rotorDisk
/usr/.../openfoam/3.0.1/intel-openmpi/OpenFOAM-3.0.1/bin/tools/RunFunctions: line 42:  5886 Floating point exception(core dumped) $APP_RUN "$@" > log.$APP_NAME 2>&1
Running createPatch on /home/jasv/OpenFoam/tutorials/rotorDisk
Running simpleFoam on /home/jasv/OpenFoam/tutorials/rotorDisk
Executing the commands individually leads to an error while snappyHexMesh is executed:

Code:
#0  Foam::error::printStack(Foam::Ostream&) at ??:?
#1  Foam::sigFpe::sigHandler(int) at ??:?
#2  ? in "/lib64/libc.so.6"
#3  ? at triangleFuncs.C:?
#4  Foam::triangleFuncs::intersectBb(Foam::Vector<double> const&, Foam::Vector<double> const&, Foam::Vector<double> const&, Foam::treeBoundBox const&) at ??:?
#5  Foam::treeDataPrimitivePatch<Foam::triSurface>::overlaps(int, Foam::treeBoundBox const&) const at ??:?
#6  ? at triSurfaceSearch.C:?
#7  ? at triSurfaceSearch.C:?
#8  ? at triSurfaceSearch.C:?
#9  ? at triSurfaceSearch.C:?
#10  ? at triSurfaceSearch.C:?
#11  ? at refinementSurfaces.C:?
#12  ? at ??:?
#13  __libc_start_main in "/lib64/libc.so.6"
#14  ? at ??:?
zsh: floating point exception (core dumped)  snappyHexMesh -overwrite
I get the same error with every other tutorial with snappyHexMesh I tried.

This error is in the main FAQ. I ran
Code:
export WM_COMPILE_OPTION=Debug
as described there but the error output doesn't changes.

What should I do to get snappyHexMesh to work?
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Old   May 1, 2016, 17:19
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Quick questions:
  1. Are you referring to the specific "rotorDisk" tutorial case "incompressible/simpleFoam/rotorDisk" that is present in OpenFOAM 3.0.1?
  2. Which Intel compiler version was used for compiling OpenFOAM? I ask this one because recently the following was reported about ICC 16: http://www.openfoam.org/mantisbt/view.php?id=2067
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Old   May 6, 2016, 04:44
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  1. Yes $FOAM_TUTORIALS/incompressible/simpleFoam/rotorDisk.
    But it's only an example: i have the same problem with simpleFoam/windAroundBuildings, pimpleDyMFoam/propeller,...
  2. icc 16.0.2
    I haven't compiled it myself but that's the output when running icc -v in the cluster.
Thanks for the link.
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Old   May 9, 2016, 09:10
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Yasir Shkara
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Hello Jasv,

I have the same problem when I run snappyHexMesh for any case, I'm using OF 3.01
did you get to any solution to this problem so far?

Thanks!
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Old   May 10, 2016, 03:55
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Not really, but I expect it to be a compiler error. On my debian with gcc 4.9, openmpi and default compilation settings it works well. In the wiki you can find a compatibility matrix.
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