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subsetMotionSolverFvMesh Parallel Issues?

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Old   January 5, 2018, 23:56
Default subsetMotionSolverFvMesh Parallel Issues?
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Hi all,

I'm trying to use subsetMotionSolverFvMesh in foam-extend (tried both 3.2 and 4.0). I can use it pretty easily as part of moveDynamicMesh in serial, but trying to run it in parallel seems to open up a can of worms.

I'm seeing the following error from all processors:
Code:
Selecting motion solver: laplace
[0] 
[0] 
[0] --> FOAM FATAL ERROR: 
[0] Cannot find file "faces" in directory "constant/motionSubset/polyMesh"
[0] 
[0]     From function Time::findInstance(const fileName&, const word&, const IOobject::readOption)
[0]     in file db/Time/findInstance.C at line 148.
I found some old threads which seemed to suggest using subsetMesh to create a polyMesh folder containing just the moving section of the mesh, then copying that polyMesh folder to the required location. I did this, but whether I decomposed the new polyMesh or copied the whole thing into each processor, I get a memory error followed by a big ol' backtrace in the same place as the error I previously mentioned.

Has anyone run into this issue before? All the links on the old threads that looked relevant are toast, so thought I'd ask again.

Cheers!
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foam-extend, mesh, motion, parallel, subsetmotionsolverfvmesh

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