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-   -   Foam::error::printStack after large bounding epsilon events (https://www.cfd-online.com/Forums/openfoam-solving/195817-foam-error-printstack-after-large-bounding-epsilon-events.html)

StoneCFD727 November 18, 2017 01:16

Foam::error::printStack after large bounding epsilon events
 
HI
i have following errormessage in OpenFoam. I donīt understand that error. Maybe someone help me? THANK YOU !!!

Code:

Courant Number mean: 0.000339587 max: 0.408127
deltaT = 9.02145e-07
Time = 0.00135927

diagonal:  Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
DILUPBiCG:  Solving for Ux, Initial residual = 0.0013293, Final residual = 3.08452e-10, No Iterations 8
DILUPBiCG:  Solving for Uy, Initial residual = 0.00228429, Final residual = 8.26315e-11, No Iterations 9
DILUPBiCG:  Solving for Uz, Initial residual = 0.000349896, Final residual = 4.62708e-10, No Iterations 5
DILUPBiCG:  Solving for Z_0_SF, Initial residual = 7.19706e-06, Final residual = 5.21183e-09, No Iterations 3
DILUPBiCG:  Solving for PV_0_SF, Initial residual = 1.14499e-05, Final residual = 3.04864e-09, No Iterations 3
DILUPBiCG:  Solving for Z_1_SF, Initial residual = 6.42631e-06, Final residual = 3.15236e-09, No Iterations 6
DILUPBiCG:  Solving for PV_1_SF, Initial residual = 1.36812e-05, Final residual = 3.15379e-09, No Iterations 4
DILUPBiCG:  Solving for Z_2_SF, Initial residual = 8.78829e-06, Final residual = 6.54172e-09, No Iterations 4
DILUPBiCG:  Solving for PV_2_SF, Initial residual = 1.3333e-05, Final residual = 7.62125e-09, No Iterations 4
DILUPBiCG:  Solving for Z_3_SF, Initial residual = 8.80763e-06, Final residual = 3.11849e-09, No Iterations 4
DILUPBiCG:  Solving for PV_3_SF, Initial residual = 0.000132973, Final residual = 1.43715e-08, No Iterations 2
DILUPBiCG:  Solving for Z_4_SF, Initial residual = 1.16002e-05, Final residual = 7.88328e-09, No Iterations 4
DILUPBiCG:  Solving for PV_4_SF, Initial residual = 9.61663e-06, Final residual = 4.96524e-09, No Iterations 4
DILUPBiCG:  Solving for Z_5_SF, Initial residual = 9.91046e-06, Final residual = 6.9985e-09, No Iterations 4
DILUPBiCG:  Solving for PV_5_SF, Initial residual = 9.40198e-06, Final residual = 2.47758e-09, No Iterations 5
DILUPBiCG:  Solving for Z_6_SF, Initial residual = 9.6367e-06, Final residual = 3.88837e-09, No Iterations 4
DILUPBiCG:  Solving for PV_6_SF, Initial residual = 1.59805e-05, Final residual = 6.05044e-09, No Iterations 4
DILUPBiCG:  Solving for Z_7_SF, Initial residual = 6.35755e-06, Final residual = 4.89687e-09, No Iterations 4
DILUPBiCG:  Solving for PV_7_SF, Initial residual = 9.88804e-06, Final residual = 5.48441e-09, No Iterations 4
DILUPBiCG:  Solving for Z_8_SF, Initial residual = 2.46602e-05, Final residual = 4.24423e-09, No Iterations 4
DILUPBiCG:  Solving for PV_8_SF, Initial residual = 6.98202e-05, Final residual = 1.19802e-08, No Iterations 3
DILUPBiCG:  Solving for Z_9_SF, Initial residual = 7.27199e-06, Final residual = 5.2587e-09, No Iterations 3
DILUPBiCG:  Solving for PV_9_SF, Initial residual = 8.61286e-06, Final residual = 4.08274e-09, No Iterations 5
DILUPBiCG:  Solving for Z_10_SF, Initial residual = 2.50661e-05, Final residual = 1.66389e-08, No Iterations 3
DILUPBiCG:  Solving for PV_10_SF, Initial residual = 1.06142e-05, Final residual = 6.4106e-09, No Iterations 4
DILUPBiCG:  Solving for Z_11_SF, Initial residual = 1.06677e-05, Final residual = 5.23439e-09, No Iterations 4
DILUPBiCG:  Solving for PV_11_SF, Initial residual = 1.94214e-05, Final residual = 1.56915e-08, No Iterations 3
DILUPBiCG:  Solving for Z_12_SF, Initial residual = 4.36829e-06, Final residual = 1.87137e-09, No Iterations 3
DILUPBiCG:  Solving for PV_12_SF, Initial residual = 3.62286e-05, Final residual = 7.55368e-09, No Iterations 3
DILUPBiCG:  Solving for Z_13_SF, Initial residual = 7.17435e-06, Final residual = 5.76953e-09, No Iterations 3
DILUPBiCG:  Solving for PV_13_SF, Initial residual = 1.4599e-05, Final residual = 1.28151e-08, No Iterations 4
DILUPBiCG:  Solving for Z_14_SF, Initial residual = 1.97298e-05, Final residual = 1.27388e-08, No Iterations 4
DILUPBiCG:  Solving for PV_14_SF, Initial residual = 1.36752e-05, Final residual = 1.05705e-08, No Iterations 3
DILUPBiCG:  Solving for Z_15_SF, Initial residual = 1.02645e-05, Final residual = 1.01806e-08, No Iterations 3
DILUPBiCG:  Solving for PV_15_SF, Initial residual = 1.03556e-05, Final residual = 8.24016e-09, No Iterations 3
For SF: 16 Wiener processes done
Updating 16 stochastic fields Z&PV
 step : Updating Z&PV mean fields done
Table lookup
Updating 16 stochastic fields other Properties
 step : Updating other Properties mean fields done
DICPCG:  Solving for p, Initial residual = 0.00928536, Final residual = 2.54623e-06, No Iterations 3
diagonal:  Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
time step continuity errors : sum local = 1.21769e-08, global = 1.66261e-09, cumulative = 1.87477e-07
DICPCG:  Solving for p, Initial residual = 0.000194833, Final residual = 3.57496e-08, No Iterations 3
diagonal:  Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
time step continuity errors : sum local = 2.47021e-10, global = 5.03535e-11, cumulative = 1.87527e-07
DICPCG:  Solving for p, Initial residual = 6.74818e-05, Final residual = 9.22578e-10, No Iterations 5
diagonal:  Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
time step continuity errors : sum local = 1.61639e-10, global = 4.69563e-11, cumulative = 1.87574e-07
DILUPBiCG:  Solving for epsilon, Initial residual = 1.75955e-05, Final residual = 4.39457e-10, No Iterations 5
DILUPBiCG:  Solving for k, Initial residual = 1.70298e-05, Final residual = 6.90433e-10, No Iterations 5
ExecutionTime = 301.41 s  ClockTime = 302 s

Courant Number mean: 0.000379642 max: 0.454941
deltaT = 9.91089e-07
Time = 0.00136026

diagonal:  Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
DILUPBiCG:  Solving for Ux, Initial residual = 0.00142909, Final residual = 7.29762e-10, No Iterations 8
DILUPBiCG:  Solving for Uy, Initial residual = 0.00253033, Final residual = 1.63038e-10, No Iterations 9
DILUPBiCG:  Solving for Uz, Initial residual = 0.000384472, Final residual = 8.4265e-10, No Iterations 4
DILUPBiCG:  Solving for Z_0_SF, Initial residual = 8.22189e-06, Final residual = 2.03643e-09, No Iterations 5
DILUPBiCG:  Solving for PV_0_SF, Initial residual = 1.58582e-05, Final residual = 5.59687e-09, No Iterations 3
DILUPBiCG:  Solving for Z_1_SF, Initial residual = 7.22328e-06, Final residual = 1.93275e-09, No Iterations 4
DILUPBiCG:  Solving for PV_1_SF, Initial residual = 1.6772e-05, Final residual = 3.95543e-09, No Iterations 4
DILUPBiCG:  Solving for Z_2_SF, Initial residual = 9.72855e-06, Final residual = 9.51064e-09, No Iterations 4
DILUPBiCG:  Solving for PV_2_SF, Initial residual = 1.41917e-05, Final residual = 7.91376e-09, No Iterations 4
DILUPBiCG:  Solving for Z_3_SF, Initial residual = 9.68409e-06, Final residual = 1.16886e-09, No Iterations 5
DILUPBiCG:  Solving for PV_3_SF, Initial residual = 0.000141563, Final residual = 2.43337e-08, No Iterations 2
DILUPBiCG:  Solving for Z_4_SF, Initial residual = 1.27948e-05, Final residual = 2.82202e-09, No Iterations 4
DILUPBiCG:  Solving for PV_4_SF, Initial residual = 1.05246e-05, Final residual = 5.5608e-09, No Iterations 4
DILUPBiCG:  Solving for Z_5_SF, Initial residual = 1.08372e-05, Final residual = 5.14729e-09, No Iterations 4
DILUPBiCG:  Solving for PV_5_SF, Initial residual = 9.87647e-06, Final residual = 7.31586e-09, No Iterations 4
DILUPBiCG:  Solving for Z_6_SF, Initial residual = 9.72884e-06, Final residual = 2.74391e-09, No Iterations 4
DILUPBiCG:  Solving for PV_6_SF, Initial residual = 1.74064e-05, Final residual = 1.10537e-08, No Iterations 4
DILUPBiCG:  Solving for Z_7_SF, Initial residual = 6.53639e-06, Final residual = 5.90739e-09, No Iterations 5
DILUPBiCG:  Solving for PV_7_SF, Initial residual = 1.03095e-05, Final residual = 6.13195e-09, No Iterations 4
DILUPBiCG:  Solving for Z_8_SF, Initial residual = 2.67645e-05, Final residual = 5.82227e-09, No Iterations 4
DILUPBiCG:  Solving for PV_8_SF, Initial residual = 8.52475e-05, Final residual = 6.63552e-09, No Iterations 3
DILUPBiCG:  Solving for Z_9_SF, Initial residual = 7.96541e-06, Final residual = 6.72737e-09, No Iterations 4
DILUPBiCG:  Solving for PV_9_SF, Initial residual = 9.0237e-06, Final residual = 1.52382e-09, No Iterations 5
DILUPBiCG:  Solving for Z_10_SF, Initial residual = 2.74228e-05, Final residual = 1.32035e-08, No Iterations 4
DILUPBiCG:  Solving for PV_10_SF, Initial residual = 1.16067e-05, Final residual = 7.61339e-09, No Iterations 4
DILUPBiCG:  Solving for Z_11_SF, Initial residual = 1.14341e-05, Final residual = 7.66534e-09, No Iterations 4
DILUPBiCG:  Solving for PV_11_SF, Initial residual = 1.92635e-05, Final residual = 1.61275e-08, No Iterations 3
DILUPBiCG:  Solving for Z_12_SF, Initial residual = 4.9621e-06, Final residual = 4.65558e-09, No Iterations 3
DILUPBiCG:  Solving for PV_12_SF, Initial residual = 3.7215e-05, Final residual = 1.19393e-08, No Iterations 3
DILUPBiCG:  Solving for Z_13_SF, Initial residual = 7.59316e-06, Final residual = 6.32942e-09, No Iterations 4
DILUPBiCG:  Solving for PV_13_SF, Initial residual = 1.60687e-05, Final residual = 2.0954e-09, No Iterations 5
DILUPBiCG:  Solving for Z_14_SF, Initial residual = 2.23831e-05, Final residual = 5.43417e-09, No Iterations 5
DILUPBiCG:  Solving for PV_14_SF, Initial residual = 1.5073e-05, Final residual = 3.00213e-09, No Iterations 4
DILUPBiCG:  Solving for Z_15_SF, Initial residual = 1.11047e-05, Final residual = 5.25842e-09, No Iterations 4
DILUPBiCG:  Solving for PV_15_SF, Initial residual = 1.12873e-05, Final residual = 8.30897e-09, No Iterations 3
For SF: 16 Wiener processes done
Updating 16 stochastic fields Z&PV
 step : Updating Z&PV mean fields done
Table lookup
Updating 16 stochastic fields other Properties
 step : Updating other Properties mean fields done
DICPCG:  Solving for p, Initial residual = 0.0103138, Final residual = 7.03225e-06, No Iterations 3
diagonal:  Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
time step continuity errors : sum local = 3.39979e-08, global = 2.56643e-09, cumulative = 1.90141e-07
DICPCG:  Solving for p, Initial residual = 0.000123516, Final residual = 4.56294e-08, No Iterations 3
diagonal:  Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
time step continuity errors : sum local = 4.91043e-10, global = 3.55513e-11, cumulative = 1.90176e-07
DICPCG:  Solving for p, Initial residual = 4.36917e-05, Final residual = 1.44636e-10, No Iterations 6
diagonal:  Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
time step continuity errors : sum local = 1.61787e-10, global = 4.71292e-11, cumulative = 1.90223e-07
DILUPBiCG:  Solving for epsilon, Initial residual = 1.86759e-05, Final residual = 0.109318, No Iterations 1001
bounding epsilon, min: -1.8556e+11 max: 1.3527e+11 average: -8.73237e+07
DILUPBiCG:  Solving for k, Initial residual = 0.000255096, Final residual = 3.27257e-10, No Iterations 6
ExecutionTime = 301.79 s  ClockTime = 302 s

Courant Number mean: 0.000417408 max: 0.583189
deltaT = 8.4693e-07
Time = 0.0013611

diagonal:  Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
DILUPBiCG:  Solving for Ux, Initial residual = 0.93395, Final residual = 8.9283e-10, No Iterations 163
DILUPBiCG:  Solving for Uy, Initial residual = 0.941983, Final residual = 9.71968e-10, No Iterations 121
DILUPBiCG:  Solving for Uz, Initial residual = 0.827287, Final residual = 9.60894e-10, No Iterations 123
[2] #0  Foam::error::printStack(Foam::Ostream&) at ??:?
[2] #1  Foam::sigFpe::sigHandler(int) at ??:?
[2] #2  in "/lib/x86_64-linux-gnu/libc.so.6"
[2] #3  Foam::DILUPreconditioner::calcReciprocalD(Foam::Field<double>&, Foam::lduMatrix const&) at ??:?
[2] #4  Foam::DILUPreconditioner::DILUPreconditioner(Foam::lduMatrix::solver const&, Foam::dictionary const&) at ??:?
[2] #5  Foam::lduMatrix::preconditioner::addasymMatrixConstructorToTable<Foam::DILUPreconditioner>::New(Foam::lduMatrix::solver const&, Foam::dictionary const&) at ??:?
[2] #6  Foam::lduMatrix::preconditioner::New(Foam::lduMatrix::solver const&, Foam::dictionary const&) at ??:?
[2] #7  Foam::PBiCG::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const at ??:?
[2] #8  Foam::fvMatrix<double>::solveSegregated(Foam::dictionary const&) at ??:?
[2] #9  Foam::fvMatrix<double>::solve(Foam::dictionary const&) at ??:?
[2] #10 
[2]  at ??:?
[2] #11  __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
[2] #12 
[2]  at ??:?
[likun-Precision-Tower-7910:34995] *** Process received signal ***
[likun-Precision-Tower-7910:34995] Signal: Floating point exception (8)
[likun-Precision-Tower-7910:34995] Signal code:  (-6)
[likun-Precision-Tower-7910:34995] Failing at address: 0x3e9000088b3
[likun-Precision-Tower-7910:34995] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x36cb0) [0x7fca66f81cb0]
[likun-Precision-Tower-7910:34995] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x37) [0x7fca66f81c37]
[likun-Precision-Tower-7910:34995] [ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x36cb0) [0x7fca66f81cb0]
[likun-Precision-Tower-7910:34995] [ 3] /opt/openfoam231/platforms/linux64GccDPOpt/lib/libOpenFOAM.so(_ZN4Foam18DILUPreconditioner15calcReciprocalDERNS_5FieldIdEERKNS_9lduMatrixE+0x9b) [0x7fca680bd05b]
[likun-Precision-Tower-7910:34995] [ 4] /opt/openfoam231/platforms/linux64GccDPOpt/lib/libOpenFOAM.so(_ZN4Foam18DILUPreconditionerC2ERKNS_9lduMatrix6solverERKNS_10dictionaryE+0xb0) [0x7fca680bd210]
[likun-Precision-Tower-7910:34995] [ 5] /opt/openfoam231/platforms/linux64GccDPOpt/lib/libOpenFOAM.so(_ZN4Foam9lduMatrix14preconditioner31addasymMatrixConstructorToTableINS_18DILUPreconditionerEE3NewERKNS0_6solverERKNS_10dictionaryE+0x2e) [0x7fca680bd4ce]
[likun-Precision-Tower-7910:34995] [ 6] /opt/openfoam231/platforms/linux64GccDPOpt/lib/libOpenFOAM.so(_ZN4Foam9lduMatrix14preconditioner3NewERKNS0_6solverERKNS_10dictionaryE+0x2f3) [0x7fca680ad4b3]
[likun-Precision-Tower-7910:34995] [ 7] /opt/openfoam231/platforms/linux64GccDPOpt/lib/libOpenFOAM.so(_ZNK4Foam5PBiCG5solveERNS_5FieldIdEERKS2_h+0x64f) [0x7fca680b1c5f]
[likun-Precision-Tower-7910:34995] [ 8] /opt/openfoam231/platforms/linux64GccDPOpt/lib/libfiniteVolume.so(_ZN4Foam8fvMatrixIdE15solveSegregatedERKNS_10dictionaryE+0x132) [0x7fca6a0522c2]
[likun-Precision-Tower-7910:34995] [ 9] ESFFGMFoam(_ZN4Foam8fvMatrixIdE5solveERKNS_10dictionaryE+0x14f) [0x45bd1f]
[likun-Precision-Tower-7910:34995] [10] ESFFGMFoam() [0x421bee]
[likun-Precision-Tower-7910:34995] [11] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7fca66f6cf45]
[likun-Precision-Tower-7910:34995] [12] ESFFGMFoam() [0x428169]
[likun-Precision-Tower-7910:34995] *** End of error message ***
--------------------------------------------------------------------------
mpirun noticed that process rank 2 with PID 34995 on node likun-Precision-Tower-7910 exited on signal 8 (Floating point exception).
--------------------------------------------------------------------------


wyldckat January 1, 2018 17:04

Quick answer: This line:
Code:

bounding epsilon, min: -1.8556e+11 max: 1.3527e+11 average: -8.73237e+07
is giving the indication that something very non-physical is happening.

The crash occurred somewhere inside the method "calcReciprocalD", which I suspect does some matrix operations, which may require inverting values.... and it's possible that it tried to invert a value of zero, hence the sigFpe (signal floating point exception).

If you still have this problem and want a better answer, then please follow the instructions given here: https://www.cfd-online.com/Forums/op...-get-help.html


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