[xshmuel]

Hi guys I am new to openfoam and was all set to run my first own problem (not a tutorial case) however I had an issue with decompoising the mesh before running it. I filled int he decomposePardict nicely and am using scotch to divide my mesh over 16 cores.

however i get the following error:

Processor 15
Number of cells = 18659
Number of faces shared with processor 8 = 426
Number of faces shared with processor 9 = 268
Number of faces shared with processor 13 = 476
Number of faces shared with processor 14 = 1015
Number of processor patches = 4
Number of processor faces = 2185
Number of boundary faces = 2495

Number of processor faces = 16796
Max number of cells = 18873 (0.992642% above average 18687.5)
Max number of processor patches = 5 (37.931% above average 3.625)
Max number of faces between processors = 2796 (33.1746% above average 2099.5)

Time = 0


--> FOAM FATAL ERROR:
Attempt to cast type genericPatch to type symmetryPlane

From function To& Foam::refCast(From&) [with To = const Foam::symmetryPlaneFvPatch; From = const Foam::fvPatch]
in file /home/ubuntu/OpenFOAM/OpenFOAM-5.x/src/OpenFOAM/lnInclude/typeInfo.H at line 114.

FOAM aborting

#0 Foam::error:rintStack(Foam::Ostream&) at ??:?
#1 Foam::error::abort() at ??:?
#2 Foam::symmetryPlaneFvPatch const& Foam::refCast<Foam::symmetryPlaneFvPatch const, Foam::fvPatch const>(Foam::fvPatch const&) at ??:?
#3 Foam::symmetryPlaneFvPatchField<double>::symmetryP laneFvPatchField(Foam::fvPatch const&, Foam:imensionedField<double, Foam::volMesh> const&, Foam::dictionary const&) at ??:?
#4 Foam::fvPatchField<double>::adddictionaryConstruct orToTable<Foam::symmetryPlaneFvPatchField<double> >::New(Foam::fvPatch const&, Foam:imensionedField<double, Foam::volMesh> const&, Foam::dictionary const&) at ??:?
#5 Foam::fvPatchField<double>::New(Foam::fvPatch const&, Foam:imensionedField<double, Foam::volMesh> const&, Foam::dictionary const&) in "/opt/openfoam5/platforms/linux64GccDPInt32Opt/bin/decomposePar"
#6 Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh>::Boundary::readField(Foam:imensio nedField<double, Foam::volMesh> const&, Foam::dictionary const&) in "/opt/openfoam5/platforms/linux64GccDPInt32Opt/bin/decomposePar"
#7 Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh>::readFields(Foam::dictionary const&) in "/opt/openfoam5/platforms/linux64GccDPInt32Opt/bin/decomposePar"
#8 Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh>::readFields() in "/opt/openfoam5/platforms/linux64GccDPInt32Opt/bin/decomposePar"
#9 Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh>::GeometricField(Foam::IOobject const&, Foam::fvMesh const&) in "/opt/openfoam5/platforms/linux64GccDPInt32Opt/bin/decomposePar"
#10 ? in "/opt/openfoam5/platforms/linux64GccDPInt32Opt/bin/decomposePar"
#11 ? in "/opt/openfoam5/platforms/linux64GccDPInt32Opt/bin/decomposePar"
#12 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"

would any of you have any idea what coudl cause this i havent had this behavior before and decomposePar worked fine till now.

appreciate the help!

[simrego]

Hi!

I think you have problems with the boundary definition.

"--> FOAM FATAL ERROR:
Attempt to cast type genericPatch to type symmetryPlane"

Based on this error I think you have a boundary with symmetryPlane type but with a BC of a different type.

[sibo]

Hi,

I am wondering did you find the solution?
I'm facing the same issue. My case can run in serial but not in parallel. And then I found the error is generated after the decomposing.

Thanks!

[xshmuel]

Dear Sibo I found my error

i had defined the patches in my blockmesh wrong such that a single face was not righthanded. so I would suggest you to check your mesh very carefully.

[sibo]

Originally Posted by xshmuel

Dear Sibo I found my error

i had defined the patches in my blockmesh wrong such that a single face was not righthanded. so I would suggest you to check your mesh very carefully.

Thanks a lot for your help!