CFD Online Discussion Forums - [groovyBC] Error at the beginning of a simulation

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[groovyBC] Error at the beginning of a simulation

Hi,

New question concerning proper installation of a groovyBC. I have some strange situation here and maybe some of you know what it is.

So, when I'm trying to run the simulation, using groovyBC, then I get something like below:

Code:

#0  Foam::error::printStack(Foam::Ostream&) in "/home/piotr/OpenFOAM/OpenFOAM-1.6.x/lib/linux64GccDPOpt/libOpenFOAM.so"

#1  Foam::sigFpe::sigFpeHandler(int) in "/home/piotr/OpenFOAM/OpenFOAM-1.6.x/lib/linux64GccDPOpt/libOpenFOAM.so"

#2  ?? in "/lib/libc.so.6"

#3  Foam::divide(Foam::Field<double>&, double const&, Foam::UList<double> const&) in "/home/piotr/OpenFOAM/OpenFOAM-1.6.x/lib/linux64GccDPOpt/libOpenFOAM.so"

#4  Foam::tmp<Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> > Foam::operator/<Foam::fvPatchField, Foam::volMesh>(Foam::dimensioned<double> const&, Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> const&) in "/home/piotr/OpenFOAM/OpenFOAM-1.6.x/applications/bin/linux64GccDPOpt/compressibleInterFoam"

#5  main in "/home/piotr/OpenFOAM/OpenFOAM-1.6.x/applications/bin/linux64GccDPOpt/compressibleInterFoam"

#6  __libc_start_main in "/lib/libc.so.6"

#7  _start at /build/buildd/eglibc-2.10.1/csu/../sysdeps/x86_64/elf/start.S:116

Floating point exception

Of course I've put a line in a controlDict:

Code:

libs ( "libOpenFOAM.so" "libgroovyBC.so" ) ;

but it doesn't work.

I feel that probably I made something wrong during the "installation" of groovyBC on my machine. Is it all right, that the path to the groovy library is:

Code:

./OpenFOAM/piotr-1.6.x/lib/linux64GccDPOpt/libgroovyBC.so

instead of:

Code:

./OpenFOAM/OpenFOAM-1.6.x/lib/linux64GccDPOpt/

Is it ok?

Quote:

Originally Posted by piprus (Post 251972)

Hi,

Code:

./OpenFOAM/piotr-1.6.x/lib/linux64GccDPOpt/libgroovyBC.so

instead of:

Code:

./OpenFOAM/OpenFOAM-1.6.x/lib/linux64GccDPOpt/

Is it ok?

I think it is OK. Generally, we should put library in our own directory. Did you run the demo case in groovyBC package?

Elliot

Quote:

Originally Posted by elliot_hfx (Post 251989)

Did you run the demo case in groovyBC package?

Elliot

Good point, I have to check it...

---------
OK I checked that. I ran the average-t-junction case and it crashed after the step t=0.429104 and just before calculating deltaT of the next step:

Code:

Courant Number mean: 2.06335e+30 max: 6.04513e+31

#0  Foam::error::printStack(Foam::Ostream&) in "/home/piotr/OpenFOAM/OpenFOAM-1.6.x/lib/linux64GccDPOpt/libOpenFOAM.so"

#1  Foam::sigFpe::sigFpeHandler(int) in "/home/piotr/OpenFOAM/OpenFOAM-1.6.x/lib/linux64GccDPOpt/libOpenFOAM.so"

#2  ?? in "/lib/libc.so.6"

#3  Foam::Time::adjustDeltaT() in "/home/piotr/OpenFOAM/OpenFOAM-1.6.x/lib/linux64GccDPOpt/libOpenFOAM.so"

#4  main in "/home/piotr/OpenFOAM/OpenFOAM-1.6.x/applications/bin/linux64GccDPOpt/pimpleFoam"

#5  __libc_start_main in "/lib/libc.so.6"

#6  _start at /build/buildd/eglibc-2.10.1/csu/../sysdeps/x86_64/elf/start.S:116

Floating point exception

So there is a problem for sure, but this time different (only first 3 lines are exactly the same) than before, even though stinks the same...
--------
This time I ran wobbler. The simulation went smoothly without any errors and the results looks quite nice in ParaView. Strange

Quote:

Originally Posted by piprus (Post 251972)

Code:

#0  Foam::error::printStack(Foam::Ostream&) in "/home/piotr/OpenFOAM/OpenFOAM-1.6.x/lib/linux64GccDPOpt/libOpenFOAM.so"

#1  Foam::sigFpe::sigFpeHandler(int) in "/home/piotr/OpenFOAM/OpenFOAM-1.6.x/lib/linux64GccDPOpt/libOpenFOAM.so"

#2  ?? in "/lib/libc.so.6"

#3  Foam::divide(Foam::Field<double>&, double const&, Foam::UList<double> const&) in "/home/piotr/OpenFOAM/OpenFOAM-1.6.x/lib/linux64GccDPOpt/libOpenFOAM.so"

#4  Foam::tmp<Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> > Foam::operator/<Foam::fvPatchField, Foam::volMesh>(Foam::dimensioned<double> const&, Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> const&) in "/home/piotr/OpenFOAM/OpenFOAM-1.6.x/applications/bin/linux64GccDPOpt/compressibleInterFoam"

#5  main in "/home/piotr/OpenFOAM/OpenFOAM-1.6.x/applications/bin/linux64GccDPOpt/compressibleInterFoam"

#6  __libc_start_main in "/lib/libc.so.6"

#7  _start at /build/buildd/eglibc-2.10.1/csu/../sysdeps/x86_64/elf/start.S:116

Floating point exception

There is no place in the stack-trace that says "groovyBC" so the problem didn't happen during the execution of groovyBC. Nevertheless it is possible that you used groovyBC to set something to 0 that shouldn't be 0 (the stack-trace indicates division by 0). But that is something groovyBC cannot be held responsible for

Bernhard

Quote:

Originally Posted by gschaider (Post 252170)

Bernhard is right, this error is simply due to my lack of knowledge. Sorry Bernhard... and thanks for all hints.