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How to accelerate findCell in OpenFOAM-6

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Old   October 24, 2020, 10:46
Default How to accelerate findCell in OpenFOAM-6
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I’m using OpenFOAM-6 and “findCell” function in parallel, but this calculation is very slow.
As for old version of OpenFOAM, there was a thread about acceleration of findCell. (How to accelerate findCell?)

In this thread, it is said that tree search enables to accelerate findCell.
(Definition of findCell in oldversion is as below.)
findCell (const point &location, const label seedCellI=-1, const bool useTreeSearch=true)
However, in OpenFOAM-6, definition of findCell is as below.

findCell(const point& location)
Tree search is not included in the definition of findCell.
Can’t I use tree search in OpenFOAM-6?

In addition, are there any options to accelerate findCell in OpenFOAM-6 (in parallel)?

Thank you very much.
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acceleration, findcell, openfoam-6, parallel calculation

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