Pj. 
September 14, 2013 04:28 
Error DURING pisoFoam execution
Hi everybody,
I'm running a flow inside a channel with a LES turbulence model with pisoFoam using mpirun.
The simulation starts finely, the courant number is below 1 and the residuals are small enough, but then, suddenly, the simulation crashes.
Here are the logs files...
pisoFoam log (last iterations)
Code:
Time = 0.179
Courant Number mean: 0.103331 max: 0.753686
DILUPBiCG: Solving for Ux, Initial residual = 0.00045336, Final residual = 2.92708e06, No Iterations 1
DILUPBiCG: Solving for Uy, Initial residual = 0.00204474, Final residual = 3.11798e07, No Iterations 2
DILUPBiCG: Solving for Uz, Initial residual = 0.00155674, Final residual = 4.13525e06, No Iterations 2
GAMG: Solving for p, Initial residual = 0.00324421, Final residual = 0.00011122, No Iterations 3
GAMG: Solving for p, Initial residual = 0.000283797, Final residual = 1.25329e05, No Iterations 5
time step continuity errors : sum local = 4.49319e10, global = 2.29015e13, cumulative = 1.67519e09
GAMG: Solving for p, Initial residual = 0.000215089, Final residual = 8.163e06, No Iterations 3
GAMG: Solving for p, Initial residual = 2.02541e05, Final residual = 8.09815e07, No Iterations 6
time step continuity errors : sum local = 2.90254e11, global = 1.42406e14, cumulative = 1.67517e09
ExecutionTime = 1290.76 s ClockTime = 1302 s
Time = 0.18
Courant Number mean: 0.103334 max: 0.753239
DILUPBiCG: Solving for Ux, Initial residual = 0.00045237, Final residual = 2.91376e06, No Iterations 1
DILUPBiCG: Solving for Uy, Initial residual = 0.00203801, Final residual = 3.10315e07, No Iterations 2
DILUPBiCG: Solving for Uz, Initial residual = 0.00155273, Final residual = 4.33455e06, No Iterations 2
GAMG: Solving for p, Initial residual = 0.00323168, Final residual = 0.000110029, No Iterations 3
GAMG: Solving for p, Initial residual = 0.000279401, Final residual = 1.23872e05, No Iterations 5
time step continuity errors : sum local = 4.4384e10, global = 2.2645e13, cumulative = 1.67495e09
GAMG: Solving for p, Initial residual = 0.000214297, Final residual = 8.1158e06, No Iterations 3
GAMG: Solving for p, Initial residual = 2.00669e05, Final residual = 8.06735e07, No Iterations 6
time step continuity errors : sum local = 2.88982e11, global = 1.08022e14, cumulative = 1.67494e09
error log
Code:
[29]
[29]
[29] > FOAM FATAL IO ERROR:
[29] error in IOstream "/eurora/home/userexternal/lamerio0/driverRegion_run/processor29/0.18/U_0" for operation Ostream& operator<<(Ostream&, const Scalar&)
[29]
[29] file: /eurora/home/userexternal/lamerio0/driverRegion_run/processor29/0.18/U_0 at line 99612.
[29]
[29] From function IOstream::check(const char*) const
[29] in file db/IOstreams/IOstreams/IOstream.C at line 99.
[29]
FOAM parallel run exiting
that is repeated for each processor.
I ran the simulation twice thinking of a memory error or something not related to OF, but both the simulations gave the error at t=0.18. So I think it's something related to it.
I have totally no idea of what is going on. Does anyone can help me? Thank you very much,
bye
