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Segmentation Fault when using class based on KinematicParcel in parallel

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Old   August 13, 2008, 15:34
Default Version: 1.5 How to reprodu
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Bernhard Gschaider
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Version: 1.5

How to reproduce: Using the rhoTurbTwinParcelFoam and the simplifiedSiwek-case. Decompose the case for 8 processors. The run fails at the first timestep with a segmentation fault:

[7] #6 Foam:stream& Foam::operator<<>(Foam:stream&, Foam::KinematicParcel<foam::basicthermoparcel> const&) at ~/OpenFOAM/OpenFOAM-1.5-debug/src/lagrangian/intermediate/lnInclude/KinematicPar celIO.C:218

The problem seems to be the line there
reinterpret_cast<const>(p.typeId()),
because typeID() is the only accessor-method in KinematicParcel that doesn't have a return-reference variant. So propably that cast trys to access the address of the returned temporary value (and the memory following it)

Possible fixes:

1. Quick and dirty: replace that line with
reinterpret_cast<const>(&p.typeId_)

2. Add a reference-variant for typeId() and do it like Thermo & ReactingParcel:
reinterpret_cast<const>(
&const_cast<kinematicparcel<parceltype>&>(p).typeI d()
),
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Old   August 18, 2008, 06:18
Default Thanks - we put it in.
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