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Old   October 2, 2009, 14:06
Unhappy MPIRUN fails
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Fran
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hello, I am using openFoam-1.6 and trying to run simpleFoam with MPIRUN in a core2quad. The case is a 3d windtunnel and it has about 5300000 elements. I get the next error message:

fran@francisco-casa:~/OpenFOAM/fran-1.6/run/trompaQueAnda090929$ mpirun -np 4 simpleFoam -parallel

Starting time loop

Time = 1

DILUPBiCG: Solving for Ux, Initial residual = 1, Final residual = 0.0399814, No Iterations 2
DILUPBiCG: Solving for Uy, Initial residual = 1, Final residual = 0.0472701, No Iterations 2
DILUPBiCG: Solving for Uz, Initial residual = 1, Final residual = 0.0728597, No Iterations 2
DICPCG: Solving for p, Initial residual = 1, Final residual = 0.00982767, No Iterations 626
DICPCG: Solving for p, Initial residual = 0.443937, Final residual = 0.00414043, No Iterations 10
DICPCG: Solving for p, Initial residual = 0.0465286, Final residual = 0.00044602, No Iterations 49
DICPCG: Solving for p, Initial residual = 0.00843051, Final residual = 8.36603e-05, No Iterations 155
DICPCG: Solving for p, Initial residual = 0.0024325, Final residual = 2.39393e-05, No Iterations 194
time step continuity errors : sum local = 1.32836e-05, global = 6.35683e-07, cumulative = 6.35683e-07
DILUPBiCG: Solving for epsilon, Initial residual = 1, Final residual = 0.000792998, No Iterations 1
DILUPBiCG: Solving for k, Initial residual = 1, Final residual = 0.0099904, No Iterations 1
ExecutionTime = 707.49 s ClockTime = 731 s

Time = 2

--------------------------------------------------------------------------
mpirun noticed that process rank 0 with PID 4274 on node francisco-casa exited on signal 9 (Killed).
--------------------------------------------------------------------------
fran@francisco-casa:~/OpenFOAM/fran-1.6/run/trompaQueAnda090929$

MPIRUN just fails. It looks like there's no problem with the case, mesh, or BC. Yesterday I ran another case with MPIRUN and it worked.
I use openFoam 64bits on Ubuntu-9.04 64 bits

Last edited by lfbarcelo; October 2, 2009 at 16:00.
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Old   February 23, 2010, 04:20
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Ben Racine
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Old   February 23, 2010, 11:04
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Nobody answered, but I figured out that this error happens when you run out of RAM. The process just dies.
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Old   March 29, 2010, 07:41
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Piotr Prusinski
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Either in case of out of hard drive space....

MPIRUN doesn't throw any exception for those problems as far as I know.
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