Openfoam cannot find user made library

songyi719 · March 23, 2024, 08:20

I created new library, and successfully compiled it. However, when I try to run the code using such library, error shows like below, and cannot proceed.

I also checked my $FOAM_USER_LIBBIN directory, but library existed, so it seems like OF cannot find my library somehow... What could be the reason?

--> FOAM Warning :
From function void* Foam::dlOpen(const Foam::fileName&, bool)
in file POSIX.C at line 1247
dlopen error : /home/song/OpenFOAM/song-11/platforms/linux64GccDPInt32Opt/lib/libfluidage.so: undefined symbol: _ZN4Foam2fv15laplacianSchemeIdNS_6VectorIdEEE27Ist reamConstructorTablePtr_E
--> FOAM Warning :
From function bool Foam::dlLibraryTable:

pen(const Foam::fileName&, bool)
in file db/dynamicLibrary/dlLibraryTable/dlLibraryTable.C at line 106
could not load "libfluidage.so"

songyi719 · March 23, 2024, 08:28

I found the reason. It was because laplacian operator was running with fvm::laplacian(vector,scalar).

By the way, does anyone knows how exactly laplacian works here?

Modifying the laplacian operator

This post says that if I put tensor in DT, I can do 1-D laplacian, but I can't get the concept how OF's laplacian takes tensor. If i put 3x3 tensor in DT, wouldn't it return vector with 3 values?

March 23, 2024, 08:20	Openfoam cannot find user made library	#1
songyi719 Member Song Young Ik Join Date: Apr 2022 Location: South Korea Posts: 57 Rep Power: 4	I created new library, and successfully compiled it. However, when I try to run the code using such library, error shows like below, and cannot proceed. I also checked my $FOAM_USER_LIBBIN directory, but library existed, so it seems like OF cannot find my library somehow... What could be the reason? --> FOAM Warning : From function void* Foam::dlOpen(const Foam::fileName&, bool) in file POSIX.C at line 1247 dlopen error : /home/song/OpenFOAM/song-11/platforms/linux64GccDPInt32Opt/lib/libfluidage.so: undefined symbol: _ZN4Foam2fv15laplacianSchemeIdNS_6VectorIdEEE27Ist reamConstructorTablePtr_E --> FOAM Warning : From function bool Foam::dlLibraryTable:pen(const Foam::fileName&, bool) in file db/dynamicLibrary/dlLibraryTable/dlLibraryTable.C at line 106 could not load "libfluidage.so"

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March 23, 2024, 08:28		#2
songyi719 Member Song Young Ik Join Date: Apr 2022 Location: South Korea Posts: 57 Rep Power: 4	I found the reason. It was because laplacian operator was running with fvm::laplacian(vector,scalar). By the way, does anyone knows how exactly laplacian works here? Modifying the laplacian operator This post says that if I put tensor in DT, I can do 1-D laplacian, but I can't get the concept how OF's laplacian takes tensor. If i put 3x3 tensor in DT, wouldn't it return vector with 3 values?