[mehulsasvadiya1996@gmail.]

Hello all,

I have a question regarding OpenFOAM in Linux. I am doing a project on 2D wells turbine case which has cyclic boundary conditions. When I run the simulation I use only two cores of CPU power but I need to use 8 cores. I have tried with decomposeParDict but it shows an error. Would you tell me how I can use 8 cores of CPU power?

Please answer this question.

Thanks.

[aadicfd]

Originally Posted by mehulsasvadiya1996@gmail.

Hello all,

I have a question regarding OpenFOAM in Linux. I am doing a project on 2D wells turbine case which has cyclic boundary conditions. When I run the simulation I use only two cores of CPU power but I need to use 8 cores. I have tried with decomposeParDict but it shows an error. Would you tell me how I can use 8 cores of CPU power?

Please answer this question.

Thanks.

What error did you receive from decomposeParDict

[mehulsasvadiya1996@gmail.]

Originally Posted by aadicfd

What error did you receive from decomposeParDict

PHP Code:

Courant Number mean: 0.000605 max: 1
deltaT = 7.685e-08
Time = 7.68462e-08

PIMPLE: iteration 1
[2] #[3] #0  [0] #0  0  smoothSolver:  Solving for Ux, Initial residual = 1, Final residual = 0.08575, No Iterations 1
smoothSolver:  Solving for Uy, Initial residual = 1, Final residual = 0.0515, No Iterations 1
[1] #0  Foam::error::printStack(Foam::Ostream&)Foam::error::printStack(Foam::Ostream&)Foam::error::printStack(Foam::Ostream&)Foam::error::printStack(Foam::Ostream&) in /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so
 in /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so
[1] #1  [2] #1  Foam::sigFpe::sigHandler(int)Foam::sigFpe::sigHandler(int) in /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so
[3] #1  Foam::sigFpe::sigHandler(int) in /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so
[0] #1  Foam::sigFpe::sigHandler(int) in /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so
[1] #2  ? in /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so
[2] #2  ? in /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so
[3] #2  ? in /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so
[0] #2  ? in /lib64/libpthread.so.0
 in /lib64/libpthread.so.0
[1] #3  [2] #3  Foam::divide(Foam::Field<double>&, double const&, Foam::UList<double> const&)Foam::divide(Foam::Field<double>&, double const&, Foam::UList<double> const&) in /lib64/libpthread.so.0
[3] #3   in /lib64/libpthread.so.0
Foam::divide(Foam::Field<double>&, double const&, Foam::UList<double> const&)[0] #3  Foam::divide(Foam::Field<double>&, double const&, Foam::UList<double> const&) in /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so
[1] #4   in /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so
[0] #4   in /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so
[3] #4   in /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so
[2] #4  Foam::tmp<Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> > Foam::operator/<Foam::fvPatchField, Foam::volMesh>(Foam::dimensioned<double> const&, Foam::tmp<Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> > const&)Foam::tmp<Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> > Foam::operator/<Foam::fvPatchField, Foam::volMesh>(Foam::dimensioned<double> const&, Foam::tmp<Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> > const&)Foam::tmp<Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> > Foam::operator/<Foam::fvPatchField, Foam::volMesh>(Foam::dimensioned<double> const&, Foam::tmp<Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> > const&)Foam::tmp<Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> > Foam::operator/<Foam::fvPatchField, Foam::volMesh>(Foam::dimensioned<double> const&, Foam::tmp<Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> > const&) in /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/bin/pimpleFoam
[0] #5   in /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/bin/pimpleFoam
[1] #5   in /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/bin/pimpleFoam
 in /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/bin/pimpleFoam
[3] #5  [2] #5  ???? in /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/bin/pimpleFoam
[0] #6  __libc_start_main in /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/bin/pimpleFoam
[1] #6  __libc_start_main in /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/bin/pimpleFoam
[2] #6  __libc_start_main in /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/bin/pimpleFoam
[3] #6  __libc_start_main in /lib64/libc.so.6
[0] #7   in /lib64/libc.so.6
[1] #7   in /lib64/libc.so.6
[3] #7   in /lib64/libc.so.6
[2] #7  ???? in /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/bin/pimpleFoam
[ws06:02786] *** Process received signal ***
[ws06:02786] Signal: Floating point exception (8)
[ws06:02786] Signal code:  (-6)
[ws06:02786] Failing at address: 0x4e8100000ae2
 in /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/bin/pimpleFoam
[ws06:02787] *** Process received signal ***
[ws06:02786] [ 0] /lib64/libpthread.so.0() [0x377a40f710]
[ws06:02786] [ 1] /lib64/libpthread.so.0(raise+0x2b) [0x377a40f5db]
[ws06:02786] [ 2] /lib64/libpthread.so.0() [0x377a40f710]
[ws06:02786] [ 3] /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam6divideERNS_5FieldIdEERKdRKNS_5UListIdEE+0xfc) [0x7f07473be63c]
[ws06:02786] [ 4] pimpleFoam(_ZN4FoamdvINS_12fvPatchFieldENS_7volMeshEEENS_3tmpINS_14GeometricFieldIdT_T0_EEEERKNS_11dimensionedIdEERKS8_+0x239) [0x46a219]
[ws06:02786] [ 5] pimpleFoam() [0x463147]
[ws06:02786] [ 6] /lib64/libc.so.6(__libc_start_main+0xfd) [0x377a01ed1d]
[ws06:02786] [ 7] pimpleFoam() [0x4227b9]
[ws06:02786] *** End of error message ***
[ws06:02787] Signal: Floating point exception (8)
[ws06:02787] Signal code:  (-6)
[ws06:02787] Failing at address: 0x4e8100000ae3
[ws06:02787] [ 0] /lib64/libpthread.so.0() [0x377a40f710]
[ws06:02787] [ 1] /lib64/libpthread.so.0(raise+0x2b) [0x377a40f5db]
[ws06:02787] [ 2] /lib64/libpthread.so.0() [0x377a40f710]
[ws06:02787] [ 3] /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam6divideERNS_5FieldIdEERKdRKNS_5UListIdEE+0xfc) [0x7f036485b63c]
[ws06:02787] [ 4] pimpleFoam(_ZN4FoamdvINS_12fvPatchFieldENS_7volMeshEEENS_3tmpINS_14GeometricFieldIdT_T0_EEEERKNS_11dimensionedIdEERKS8_+0x239) [0x46a219]
[ws06:02787] [ 5] pimpleFoam() [0x463147]
[ws06:02787] [ 6] /lib64/libc.so.6(__libc_start_main+0xfd) [0x377a01ed1d]
[ws06:02787] [ 7] pimpleFoam() [0x4227b9]
[ws06:02787] *** End of error message ***
 in /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/bin/pimpleFoam
[ws06:02789] *** Process received signal ***
[ws06:02789] Signal: Floating point exception (8)
[ws06:02789] Signal code:  (-6)
[ws06:02789] Failing at address: 0x4e8100000ae5
[ws06:02789] [ 0] /lib64/libpthread.so.0() [0x377a40f710]
[ws06:02789] [ 1] /lib64/libpthread.so.0(raise+0x2b) [0x377a40f5db]
[ws06:02789] [ 2] /lib64/libpthread.so.0() [0x377a40f710]
[ws06:02789] [ 3] /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam6divideERNS_5FieldIdEERKdRKNS_5UListIdEE+0xfc) [0x7f2017a0c63c]
[ws06:02789] [ 4] pimpleFoam(_ZN4FoamdvINS_12fvPatchFieldENS_7volMeshEEENS_3tmpINS_14GeometricFieldIdT_T0_EEEERKNS_11dimensionedIdEERKS8_+0x239) [0x46a219]
[ws06:02789] [ 5] pimpleFoam() [0x463147]
[ws06:02789] [ 6] /lib64/libc.so.6(__libc_start_main+0xfd) [0x377a01ed1d]
[ws06:02789] [ 7] pimpleFoam() [0x4227b9]
[ws06:02789] *** End of error message ***
 in /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/bin/pimpleFoam
[ws06:02788] *** Process received signal ***
[ws06:02788] Signal: Floating point exception (8)
[ws06:02788] Signal code:  (-6)
[ws06:02788] Failing at address: 0x4e8100000ae4
[ws06:02788] [ 0] /lib64/libpthread.so.0() [0x377a40f710]
[ws06:02788] [ 1] /lib64/libpthread.so.0(raise+0x2b) [0x377a40f5db]
[ws06:02788] [ 2] /lib64/libpthread.so.0() [0x377a40f710]
[ws06:02788] [ 3] /home/software/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam6divideERNS_5FieldIdEERKdRKNS_5UListIdEE+0xfc) [0x7f0ce660a63c]
[ws06:02788] [ 4] pimpleFoam(_ZN4FoamdvINS_12fvPatchFieldENS_7volMeshEEENS_3tmpINS_14GeometricFieldIdT_T0_EEEERKNS_11dimensionedIdEERKS8_+0x239) [0x46a219]
[ws06:02788] [ 5] pimpleFoam() [0x463147]
[ws06:02788] [ 6] /lib64/libc.so.6(__libc_start_main+0xfd) [0x377a01ed1d]
[ws06:02788] [ 7] pimpleFoam() [0x4227b9]
[ws06:02788] *** End of error message ***
--------------------------------------------------------------------------
mpirun noticed that process rank 0 with PID 2786 on node ws06.clus exited on signal 8 (Floating point exception).
--------------------------------------------------------------------------
3 total processes killed (some possibly by mpirun during cleanup)