[TongZhou]

Hello everybody,

Could someone please help me to understand the reason for the error in my pimpleFoam -parallel run:

PIMPLE: iteration 1
DILUPBiCG: Solving for Ux, Initial residual = 0.0046852007, Final residual = 2.4125428e-07, No Iterations 12
DILUPBiCG: Solving for Uy, Initial residual = 0.031750788, Final residual = 3.865438e-07, No Iterations 15
DILUPBiCG: Solving for Uz, Initial residual = 0.0053331636, Final residual = 6.9945032e-08, No Iterations 13
[19] #0 Foam::error:rintStack(Foam::Ostream&) at ??:?
[19] #1 Foam::sigFpe::sigHandler(int) at ??:?
[19] #2 ? in "/lib/x86_64-linux-gnu/libc.so.6"
[19] #3 Foam::GAMGSolver::scale(Foam::Field<double>&, Foam::Field<double>&, Foam::lduMatrix const&, Foam::FieldField<Foam::Field, double> const&, Foam::UPtrList<Foam::lduInterfaceField const> const&, Foam::Field<double> const&, unsigned char) const at ??:?
[19] #4 Foam::GAMGSolver::Vcycle(Foam::PtrList<Foam::lduMa trix::smoother> const&, Foam::Field<double>&, Foam::Field<double> const&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::PtrList<Foam::Field<double> >&, Foam::PtrList<Foam::Field<double> >&, unsigned char) const at ??:?
[19] #5 Foam::GAMGSolver::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const at ??:?
[19] #6 Foam::fvMatrix<double>::solveSegregated(Foam::dict ionary const&) at ??:?
[19] #7 Foam::fvMatrix<double>::solve(Foam::dictionary const&) at ??:?
[19] #8 ? at ??:?
[19] #9 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
[19] #10 ? at ??:?
[zj:01594] *** Process received signal ***
[zj:01594] Signal: Floating point exception (8)
[zj:01594] Signal code: (-6)
[zj:01594] Failing at address: 0x3e90000063a
[zj:01594] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x354b0)[0x7fc4ff6464b0]
[zj:01594] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x38)[0x7fc4ff646428]
[zj:01594] [ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x354b0)[0x7fc4ff6464b0]
[zj:01594] [ 3] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam10GAMGSolver5scaleERNS_5Fi eldIdEES3_RKNS_9lduMatrixERKNS_10FieldFieldIS1_dEE RKNS_8UPtrListIKNS_17lduInterfaceFieldEEERKS2_h+0x d9)[0x7fc50092ae09]
[zj:01594] [ 4] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam10GAMGSolver6VcycleERKNS_7 PtrListINS_9lduMatrix8smootherEEERNS_5FieldIdEERKS 8_S9_S9_S9_S9_S9_RNS1_IS8_EESD_h+0x7b2)[0x7fc50092f092]
[zj:01594] [ 5] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam10GAMGSolver5solveERNS_5Fi eldIdEERKS2_h+0x807)[0x7fc500931987]
[zj:01594] [ 6] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so(_ZN4Foam8fvMatrixIdE15solveSegr egatedERKNS_10dictionaryE+0x15b)[0x7fc502b49bfb]
[zj:01594] [ 7] pimpleFoam(_ZN4Foam8fvMatrixIdE5solveERKNS_10dicti onaryE+0x191)[0x46fce1]
[zj:01594] [ 8] pimpleFoam[0x426a45]
[zj:01594] [ 9] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7fc4ff631830]
[zj:01594] [10] pimpleFoam[0x428729]
[zj:01594] *** End of error message ***
--------------------------------------------------------------------------
mpirun noticed that process rank 19 with PID 1594 on node zj exited on signal 8 (Floating point exception).

I have checked my mesh, the mesh quality can be seen in the attached file.
Both boundary conditions and schemes are set as attached.

[Santiago]

Originally Posted by TongZhou

Hello everybody,

Could someone please help me to understand the reason for the error in my pimpleFoam -parallel run:

PIMPLE: iteration 1
DILUPBiCG: Solving for Ux, Initial residual = 0.0046852007, Final residual = 2.4125428e-07, No Iterations 12
DILUPBiCG: Solving for Uy, Initial residual = 0.031750788, Final residual = 3.865438e-07, No Iterations 15
DILUPBiCG: Solving for Uz, Initial residual = 0.0053331636, Final residual = 6.9945032e-08, No Iterations 13
[19] #0 Foam::error:rintStack(Foam::Ostream&) at ??:?
[19] #1 Foam::sigFpe::sigHandler(int) at ??:?
[19] #2 ? in "/lib/x86_64-linux-gnu/libc.so.6"
[19] #3 Foam::GAMGSolver::scale(Foam::Field<double>&, Foam::Field<double>&, Foam::lduMatrix const&, Foam::FieldField<Foam::Field, double> const&, Foam::UPtrList<Foam::lduInterfaceField const> const&, Foam::Field<double> const&, unsigned char) const at ??:?
[19] #4 Foam::GAMGSolver::Vcycle(Foam::PtrList<Foam::lduMa trix::smoother> const&, Foam::Field<double>&, Foam::Field<double> const&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::PtrList<Foam::Field<double> >&, Foam::PtrList<Foam::Field<double> >&, unsigned char) const at ??:?
[19] #5 Foam::GAMGSolver::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const at ??:?
[19] #6 Foam::fvMatrix<double>::solveSegregated(Foam::dict ionary const&) at ??:?
[19] #7 Foam::fvMatrix<double>::solve(Foam::dictionary const&) at ??:?
[19] #8 ? at ??:?
[19] #9 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
[19] #10 ? at ??:?
[zj:01594] *** Process received signal ***
[zj:01594] Signal: Floating point exception (8)
[zj:01594] Signal code: (-6)
[zj:01594] Failing at address: 0x3e90000063a
[zj:01594] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x354b0)[0x7fc4ff6464b0]
[zj:01594] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x38)[0x7fc4ff646428]
[zj:01594] [ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x354b0)[0x7fc4ff6464b0]
[zj:01594] [ 3] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam10GAMGSolver5scaleERNS_5Fi eldIdEES3_RKNS_9lduMatrixERKNS_10FieldFieldIS1_dEE RKNS_8UPtrListIKNS_17lduInterfaceFieldEEERKS2_h+0x d9)[0x7fc50092ae09]
[zj:01594] [ 4] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam10GAMGSolver6VcycleERKNS_7 PtrListINS_9lduMatrix8smootherEEERNS_5FieldIdEERKS 8_S9_S9_S9_S9_S9_RNS1_IS8_EESD_h+0x7b2)[0x7fc50092f092]
[zj:01594] [ 5] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam10GAMGSolver5solveERNS_5Fi eldIdEERKS2_h+0x807)[0x7fc500931987]
[zj:01594] [ 6] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so(_ZN4Foam8fvMatrixIdE15solveSegr egatedERKNS_10dictionaryE+0x15b)[0x7fc502b49bfb]
[zj:01594] [ 7] pimpleFoam(_ZN4Foam8fvMatrixIdE5solveERKNS_10dicti onaryE+0x191)[0x46fce1]
[zj:01594] [ 8] pimpleFoam[0x426a45]
[zj:01594] [ 9] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7fc4ff631830]
[zj:01594] [10] pimpleFoam[0x428729]
[zj:01594] *** End of error message ***
--------------------------------------------------------------------------
mpirun noticed that process rank 19 with PID 1594 on node zj exited on signal 8 (Floating point exception).

I have checked my mesh, the mesh quality can be seen in the attached file.
Both boundary conditions and schemes are set as attached.

Try another symmetric linear solver for pressure, more robust