Butterfly/Openfoam floating issue

Dear butterfly experts,

I have a flaoting issue when running buoyantBoussinesqSimpleFoam (prototype hvac.gh) through grasshopper. Can anyone help tell how can I solve it? 

Many thanks.
Mark

/*---------------------------------------------------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v1612+ |
| \\ / A nd | Web: www.OpenFOAM.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
Build : v1612+
Exec : buoyantBoussinesqSimpleFoam -parallel
Date : May 22 2017
Time : 10:18:58
Host : "default"
PID : 2839
Case : /home/ofuser/workingDir/butterfly/simple_hvac
nProcs : 4
Slaves : 
3
(
"default.2840"
"default.2841"
"default.2842"
)

Pstream initialized with:
floatTransfer : 0
nProcsSimpleSum : 0
commsType : nonBlocking
polling iterations : 0
sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster (fileModificationSkew 10)
allowSystemOperations : Allowing user-supplied system call operations

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Create mesh for time = 0


SIMPLE: convergence criteria
field nut tolerance 0.0001
field p_rgh tolerance 0.0001
field k tolerance 0.0001
field U tolerance 0.0001
field T tolerance 0.0001
field epsilon tolerance 0.0001
field alphat tolerance 0.0001

Reading thermophysical properties

Reading field T

Reading field p_rgh

Reading field U

Reading/calculating face flux field phi

Selecting incompressible transport model Newtonian
Creating turbulence model

Selecting turbulence model type RAS
Selecting RAS turbulence model RNGkEpsilon
RNGkEpsilonCoeffs
{
Cmu 0.0845;
C1 1.42;
C2 1.68;
C3 -0.33;
sigmak 0.71942;
sigmaEps 0.71942;
eta0 4.38;
beta 0.012;
}

Reading field alphat


Reading g

Reading hRef
Calculating field g.h

No MRF models present

Radiation model not active: radiationProperties not found
Selecting radiationModel none
No finite volume options present


Starting time loop

Time = 1

smoothSolver: Solving for Ux, Initial residual = 1, Final residual = 0.06427477, No Iterations 4
smoothSolver: Solving for Uy, Initial residual = 1, Final residual = 0.06226344, No Iterations 4
smoothSolver: Solving for Uz, Initial residual = 1, Final residual = 0.03950103, No Iterations 3
smoothSolver: Solving for T, Initial residual = 1, Final residual = 0.03671111, No Iterations 2
DICPCG: Solving for p_rgh, Initial residual = 1, Final residual = 0.008356878, No Iterations 86
DICPCG: Solving for p_rgh, Initial residual = 0.07888434, Final residual = 0.0006831407, No Iterations 9
DICPCG: Solving for p_rgh, Initial residual = 0.007053905, Final residual = 6.211827e-05, No Iterations 71
time step continuity errors : sum local = 3777.266, global = 3.22967, cumulative = 3.22967
smoothSolver: Solving for epsilon, Initial residual = 0.9994728, Final residual = 0.0532353, No Iterations 4
smoothSolver: Solving for k, Initial residual = 1, Final residual = 0.05640973, No Iterations 4
ExecutionTime = 2.65 s ClockTime = 3 s

Time = 2

smoothSolver: Solving for Ux, Initial residual = 0.5142984, Final residual = 0.02186577, No Iterations 2
smoothSolver: Solving for Uy, Initial residual = 0.5242573, Final residual = 0.02244622, No Iterations 2
smoothSolver: Solving for Uz, Initial residual = 0.5106874, Final residual = 0.02933279, No Iterations 2
smoothSolver: Solving for T, Initial residual = 0.3832824, Final residual = 0.01046751, No Iterations 2
DICPCG: Solving for p_rgh, Initial residual = 0.9825413, Final residual = 0.009757923, No Iterations 799
DICPCG: Solving for p_rgh, Initial residual = 0.04390194, Final residual = 0.000303611, No Iterations 9
DICPCG: Solving for p_rgh, Initial residual = 0.0073043, Final residual = 7.259574e-05, No Iterations 45
time step continuity errors : sum local = 1883567, global = 2227.205, cumulative = 2230.435
smoothSolver: Solving for epsilon, Initial residual = 0.08647006, Final residual = 0.000113174, No Iterations 1
smoothSolver: Solving for k, Initial residual = 0.1579946, Final residual = 0.01115579, No Iterations 2
ExecutionTime = 9.56 s ClockTime = 10 s

Time = 3

smoothSolver: Solving for Ux, Initial residual = 0.8070853, Final residual = 0.07865708, No Iterations 3
smoothSolver: Solving for Uy, Initial residual = 0.8145663, Final residual = 0.03882168, No Iterations 4
smoothSolver: Solving for Uz, Initial residual = 0.5761609, Final residual = 0.0390739, No Iterations 4
smoothSolver: Solving for T, Initial residual = 0.1644957, Final residual = 0.006771158, No Iterations 2
DICPCG: Solving for p_rgh, Initial residual = 0.7802636, Final residual = 0.006709539, No Iterations 13
DICPCG: Solving for p_rgh, Initial residual = 0.04575494, Final residual = 0.0004415382, No Iterations 130
DICPCG: Solving for p_rgh, Initial residual = 0.005830491, Final residual = 5.648426e-05, No Iterations 78
time step continuity errors : sum local = 6.68889e+12, global = -4.053656e+11, cumulative = -4.053656e+11
smoothSolver: Solving for epsilon, Initial residual = 1, Final residual = 0.08337707, No Iterations 1
smoothSolver: Solving for k, Initial residual = 1, Final residual = 0.08762031, No Iterations 2
ExecutionTime = 11.24 s ClockTime = 11 s

Time = 4

smoothSolver: Solving for Ux, Initial residual = 0.1870785, Final residual = 0.008250987, No Iterations 2
smoothSolver: Solving for Uy, Initial residual = 0.1039591, Final residual = 0.003633928, No Iterations 2
smoothSolver: Solving for Uz, Initial residual = 0.003344756, Final residual = 0.0001428352, No Iterations 2
smoothSolver: Solving for T, Initial residual = 0.0360337, Final residual = 0.0008781286, No Iterations 2
DICPCG: Solving for p_rgh, Initial residual = 0.9999995, Final residual = 0.7505781, No Iterations 1001
DICPCG: Solving for p_rgh, Initial residual = 2.097918e-11, Final residual = 2.097918e-11, No Iterations 0
DICPCG: Solving for p_rgh, Initial residual = 2.097918e-11, Final residual = 2.097918e-11, No Iterations 0
time step continuity errors : sum local = 9.100777e+16, global = -1.152626e+15, cumulative = -1.153031e+15
smoothSolver: Solving for epsilon, Initial residual = 0.006323925, Final residual = 0.0002800085, No Iterations 1
smoothSolver: Solving for k, Initial residual = 0.9999998, Final residual = 0.08579136, No Iterations 4
ExecutionTime = 15.48 s ClockTime = 16 s

Time = 5

smoothSolver: Solving for Ux, Initial residual = 0.6268107, Final residual = 0.01889084, No Iterations 2
smoothSolver: Solving for Uy, Initial residual = 0.5691313, Final residual = 0.02593386, No Iterations 2
smoothSolver: Solving for Uz, Initial residual = 0.525286, Final residual = 0.01999095, No Iterations 2
smoothSolver: Solving for T, Initial residual = 0.1776883, Final residual = 0.004896742, No Iterations 2
DICPCG: Solving for p_rgh, Initial residual = 0.8409992, Final residual = 0.008296552, No Iterations 25
DICPCG: Solving for p_rgh, Initial residual = 8.57445e-13, Final residual = 8.57445e-13, No Iterations 0
DICPCG: Solving for p_rgh, Initial residual = 8.57445e-13, Final residual = 8.57445e-13, No Iterations 0
time step continuity errors : sum local = 3.230307e+23, global = -5.044393e+14, cumulative = -1.657471e+15
smoothSolver: Solving for epsilon, Initial residual = 4.732135e-05, Final residual = 1.311093e-10, No Iterations 1
bounding epsilon, min: -1.103807e+26 max: 1.972571e+51 average: 2.670218e+47
smoothSolver: Solving for k, Initial residual = 0.04771126, Final residual = 0.002285774, No Iterations 2
ExecutionTime = 16.44 s ClockTime = 17 s

Time = 6

smoothSolver: Solving for Ux, Initial residual = 0.9995642, Final residual = 0.04432588, No Iterations 4
smoothSolver: Solving for Uy, Initial residual = 0.9996968, Final residual = 0.04761556, No Iterations 4
smoothSolver: Solving for Uz, Initial residual = 0.9858131, Final residual = 0.06924769, No Iterations 3
smoothSolver: Solving for T, Initial residual = 0.01200576, Final residual = 0.0002952721, No Iterations 2
DICPCG: Solving for p_rgh, Initial residual = 0.9446084, Final residual = 0.005339222, No Iterations 6
DICPCG: Solving for p_rgh, Initial residual = 0.08971123, Final residual = 0.0008218812, No Iterations 6
DICPCG: Solving for p_rgh, Initial residual = 0.02323654, Final residual = 0.0002319251, No Iterations 193
time step continuity errors : sum local = 4.926861e+44, global = -1.110593e+37, cumulative = -1.110593e+37
smoothSolver: Solving for epsilon, Initial residual = 1, Final residual = 0.002671469, No Iterations 2
bounding epsilon, min: -2.219668e+47 max: 1.75779e+78 average: 3.182358e+73
smoothSolver: Solving for k, Initial residual = 1, Final residual = 0.0501481, No Iterations 2
bounding k, min: -3.660183e+25 max: 9.966186e+62 average: 8.53815e+58
ExecutionTime = 18.1 s ClockTime = 18 s

Time = 7

smoothSolver: Solving for Ux, Initial residual = 8.069155e-09, Final residual = 8.069155e-09, No Iterations 0
smoothSolver: Solving for Uy, Initial residual = 5.382338e-08, Final residual = 7.473481e-09, No Iterations 1
smoothSolver: Solving for Uz, Initial residual = 2.092083e-08, Final residual = 2.077615e-09, No Iterations 1
smoothSolver: Solving for T, Initial residual = 0.1619372, Final residual = 0.003564584, No Iterations 2
DICPCG: Solving for p_rgh, Initial residual = 1, Final residual = 46631.37, No Iterations 1001
DICPCG: Solving for p_rgh, Initial residual = 1.64537e-26, Final residual = 1.64537e-26, No Iterations 0
DICPCG: Solving for p_rgh, Initial residual = 1.64537e-26, Final residual = 1.64537e-26, No Iterations 0
time step continuity errors : sum local = 1.468529e+53, global = 5.868436e+40, cumulative = 5.867326e+40
smoothSolver: Solving for epsilon, Initial residual = 0.07343377, Final residual = 2.828068e-19, No Iterations 1
bounding epsilon, min: -2.257804e+66 max: 8.093947e+109 average: 1.184346e+105
smoothSolver: Solving for k, Initial residual = 0.5212037, Final residual = 0.02939162, No Iterations 2
ExecutionTime = 22.26 s ClockTime = 22 s

Time = 8

smoothSolver: Solving for Ux, Initial residual = 0.6924604, Final residual = 0.01784756, No Iterations 2
smoothSolver: Solving for Uy, Initial residual = 0.3637153, Final residual = 0.005737122, No Iterations 2
smoothSolver: Solving for Uz, Initial residual = 0.2793264, Final residual = 0.00626238, No Iterations 2
smoothSolver: Solving for T, Initial residual = 0.07790577, Final residual = 0.002676894, No Iterations 2
DICPCG: Solving for p_rgh, Initial residual = 0.8911507, Final residual = 0.008688155, No Iterations 18
DICPCG: Solving for p_rgh, Initial residual = 1.957294e-52, Final residual = 1.957294e-52, No Iterations 0
DICPCG: Solving for p_rgh, Initial residual = 1.957294e-52, Final residual = 1.957294e-52, No Iterations 0
time step continuity errors : sum local = 8.548233e+90, global = -3.056251e+75, cumulative = -3.056251e+75
--------------------------------------------------------------------------
mpirun noticed that process rank 1 with PID 2840 on node default exited on signal 8 (Floating point exception).
--------------------------------------------------------------------------
[1] #0 Foam::error:rintStack(Foam::Ostream&)[0] #0 Foam::error:rintStack(Foam::Ostream&) in "/opt/OpenFOAM/OpenFOAM-v1612+/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so"
[0] #1 Foam::sigFpe::sigHandler(int) in "/opt/OpenFOAM/OpenFOAM-v1612+/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so"
[1] #1 Foam::sigFpe::sigHandler(int) in "/opt/OpenFOAM/OpenFOAM-v1612+/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so"
[0] #2 ? in "/opt/OpenFOAM/OpenFOAM-v1612+/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so"
[1] #2 ? in "/lib64/libc.so.6"
[0] #3 Foam::multiply(Foam::Field<double>&, Foam::UList<double> const&, Foam::UList<double> const&) in "/lib64/libc.so.6"
[1] #3 Foam::multiply(Foam::Field<double>&, Foam::UList<double> const&, Foam::UList<double> const&) in "/opt/OpenFOAM/OpenFOAM-v1612+/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so"
[0] #4 Foam::tmp<Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> > Foam:perator*<Foam::fvPatchField, Foam::volMesh>(Foam::tmp<Foam::GeometricField<doub le, Foam::fvPatchField, Foam::volMesh> > const&, Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> const&) in "/opt/OpenFOAM/OpenFOAM-v1612+/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so"
[1] #4 void Foam::multiply<Foam::fvPatchField, Foam::volMesh>(Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh>&, Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> const&, Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> const&) in "/opt/OpenFOAM/OpenFOAM-v1612+/platforms/linux64GccDPInt32Opt/lib/libincompressibleTurbulenceModels.so"
[1] #5 Foam::tmp<Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> > Foam:perator*<Foam::fvPatchField, Foam::volMesh>(Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> const&, Foam::tmp<Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> > const&) in "/opt/OpenFOAM/OpenFOAM-v1612+/platforms/linux64GccDPInt32Opt/lib/libincompressibleTurbulenceModels.so"
[1] #6 Foam::RASModels::RNGkEpsilon<Foam::IncompressibleT urbulenceModel<Foam::transportModel> >::correct() in "/opt/OpenFOAM/OpenFOAM-v1612+/platforms/linux64GccDPInt32Opt/lib/libincompressibleTurbulenceModels.so"
[1] #7 ? in "/opt/OpenFOAM/OpenFOAM-v1612+/platforms/linux64GccDPInt32Opt/bin/buoyantBoussinesqSimpleFoam"
[1] #8 __libc_start_main in "/lib64/libc.so.6"
[1] #9 ? in "/opt/OpenFOAM/OpenFOAM-v1612+/platforms/linux64GccDPInt32Opt/bin/buoyantBoussinesqSimpleFoam"
[default:02840] *** Process received signal ***
[default:02840] Signal: Floating point exception (8)
[default:02840] Signal code: (-6)
[default:02840] Failing at address: 0x1f400000b18
[default:02840] [ 0] /lib64/libc.so.6(+0x32660)[0x7f516d4f4660]
[default:02840] [ 1] /lib64/libc.so.6(gsignal+0x35)[0x7f516d4f45e5]
[default:02840] [ 2] /lib64/libc.so.6(+0x32660)[0x7f516d4f4660]
[default:02840] [ 3] /opt/OpenFOAM/OpenFOAM-v1612+/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam8multiplyERNS_5FieldIdEERKN S_5UListIdEES6_+0xd5)[0x7f516e7bfd55]
[default:02840] [ 4] /opt/OpenFOAM/OpenFOAM-v1612+/platforms/linux64GccDPInt32Opt/lib/libincompressibleTurbulenceModels.so(_ZN4Foam8mult iplyINS_12fvPatchFieldENS_7volMeshEEEvRNS_14Geomet ricFieldIdT_T0_EERKS6_S9_+0x41)[0x7f5172705861]
[default:02840] [ 5] /opt/OpenFOAM/OpenFOAM-v1612+/platforms/linux64GccDPInt32Opt/lib/libincompressibleTurbulenceModels.so(_ZN4FoammlINS _12fvPatchFieldENS_7volMeshEEENS_3tmpINS_14Geometr icFieldIdT_T0_EEEERKS7_RKS8_+0x15b)[0x7f5172784afb]
[default:02840] [ 6] /opt/OpenFOAM/OpenFOAM-v1612+/platforms/linux64GccDPInt32Opt/lib/libincompressibleTurbulenceModels.so(_ZN4Foam9RASM odels11RNGkEpsilonINS_29IncompressibleTurbulenceMo delINS_14transportModelEEEE7correctEv+0x2d0)[0x7f51727d5ec0]
[default:02840] [ 7] buoyantBoussinesqSimpleFoam[0x481a7d]
[default:02840] [ 8] /lib64/libc.so.6(__libc_start_main+0xfd)[0x7f516d4e0d1d]
[default:02840] [ 9] buoyantBoussinesqSimpleFoam[0x42db51]
[default:02840] *** End of error message ***