[Anis Hanani]

Hello everyone!

I have a problem running a parallel simulation.

In the first steps of my case, I do the following instructions:

-surfaceFeatureExtract
-blockMesh
-snappyHexMesh
-setFields
-decomposePar

All these went well.

But when I type : foamJob -parallel interFoam
The simulation encounters a problem and gives this message

Time = 2.5

PIMPLE: iteration 1
smoothSolver: Solving for alpha.water, Initial residual = 0.209678, Final residual = 9.91126e-09, No Iterations 840
Phase-1 volume fraction = -1.55948e+08 Min(alpha.water) = -2.52115e+15 Max(alpha.water) = 1.68999e+15
MULES: Correcting alpha.water
Phase-1 volume fraction = -1.55925e+08 Min(alpha.water) = -1.26256e+26 Max(alpha.water) = 2.36982e+26
GAMG: Solving for p_rgh, Initial residual = 0.000183673, Final residual = 0.00784301, No Iterations 50
time step continuity errors : sum local = 2.2925e+12, global = 3.35574e+08, cumulative = 3.35506e+08
GAMG: Solving for p_rgh, Initial residual = 1.17896e-06, Final residual = 4.15992e-09, No Iterations 3
time step continuity errors : sum local = 6.19977e+16, global = -7.42357e+15, cumulative = -7.42357e+15
-------------------------------------------------------
Primary job terminated normally, but 1 process returned
a non-zero exit code.. Per user-direction, the job has been aborted.
-------------------------------------------------------
--------------------------------------------------------------------------
mpirun detected that one or more processes exited with non-zero status, thus causing
the job to be terminated. The first process to do so was:

Process name: [[33237,1],3]
Exit code: 144

The simulation was supposed to run for 60 seconds but it stopped at 2.5 seconds.

Does anyone knows what I'm doing wrong?

[Lorenzo210]

Hi Anis,
Look at the values of alpha.water before the first MULES correction, they are clearly not correct, and you can tell the same also for p_rgh.

Phase-1 volume fraction = -1.55948e+08 Min(alpha.water) = -2.52115e+15 Max(alpha.water) = 1.68999e+15

So, maybe something is wrong with the settings of your case, but it is hard to tell without more information.
I suggest you to try checking the boundary conditions inside the 0 folder , then running the case in serial and see what happens at the very first iterations.

Regards,
Lorenzo