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Parallel Simulation Data Write Failure

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Old   April 1, 2015, 10:38
Post Parallel Simulation Data Write Failure
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After decompose a geometry with "scotch", using "decomposePar", running the simulation with "mpiexec -n 6 interFoam -parallel", then using "reconstructPar" I get the following error:

Code:
wrong token type - expected Scalar, found on line 29397 the punctuation token ','

file: /home/jesse/NotSynced/VOFCriticality/fill/processor5/74/omega at line 29397.

    From function operator>>(Istream&, Scalar&)
    in file lnInclude/Scalar.C at line 93.

FOAM exiting
When I look into the field file, I notice that a value in the field data has been replaced with a ",". It looks like there was a write problem when running the simulation. On my laptop, I have the same issues. This only occurs when I perform mutlicore simulations.

I am using 2.3.1; however, this occurs with 2.3.0 as well.

My decomposeParDict file is:

Code:
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    location    "system";
    object      decomposeParDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

numberOfSubdomains 6; //number of cpus you'll use

method scotch; //method of decomposition

simpleCoeffs
{
n ( 2 2 2 );
delta 0.001;
}

hierarchicalCoeffs
{
n ( 1 1 1 );
delta 0.001;
order xyz;
}

scotchCoeffs
{
processorWeights
(
1
1
1
1
1
1
);
}

manualCoeffs
{
    dataFile        "";
}

distributed     no;

roots           ( );
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Old   April 3, 2015, 12:09
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Has anyone run into this issue at all? I'm wondering if it might be necessary that I use a server with ECC RAM or something, or if there is another trick to protect the writing.

I attempted to use the compression open, but it does not alleviate my issues.

Any help would be appreciated.

Thanks.
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Old   April 16, 2015, 15:24
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In the event anyone has this kind of problem, I solved it by recompiling MPI and OpenFOAM. It seems likes something funny happened in the libraries. Luckily, it does not appear to be a hardware issue.
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