CFD Online Discussion Forums - decomposePar for Conjugate Heat Transfer not working properly

Hello all!
I have a case which uses chtMultiRegionSimpleFoam with a solid region and a fluid region. I am trying to decompose the case into 4 processors, using the following decomposeParDict file:

Code:

/*--------------------------------*- C++ -*----------------------------------*\

| =========                 |                                                 |

| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |

|  \\    /   O peration     | Version:  4.1                                   |

|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |

|    \\/     M anipulation  |                                                 |

\*---------------------------------------------------------------------------*/

FoamFile

{

    version     2.0;

    format      ascii;

    class       dictionary;

    location    "system";

    object      decomposeParDict;

}

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //



numberOfSubdomains 4;



method          simple;



simpleCoeffs

{

    n               (2 2 1);

    delta           0.001;

}



hierarchicalCoeffs

{

    n               (1 1 1);

    delta           0.001;

    order           xyz;

}



manualCoeffs

{

    dataFile        "";

}



distributed     no;



roots           ( );





// ************************************************************************* //

When I run in the terminal

Code:

decomposePar -allRegions

It decomposes in only 2 processors and uses the scotch method instead, almost as it completely ignores my decomposeParDict.

However, if I run the decomposePar shown above in a one-region case, the execution runs well.

How can I fix this?

Thanks and best regards,
João Gil