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[OpenFOAM] Visualization of parallel case with collated format

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Old   February 25, 2020, 04:25
Default Visualization of parallel case with collated format
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Aqeel Ahmed
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Paraview can be used to visualize a decomposed case (without reconstruction) with the original parallel format of OpenFoam (a seperate directory for each processor).
Since version 5, there is a new collated format for parallel decomposition (one directory irrespestive of the number of domains).

Is it possible to visualise the same without reconstructing the case?
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Old   July 8, 2020, 17:57
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Quote:
Originally Posted by AqeelAhmed168 View Post
Paraview can be used to visualize a decomposed case (without reconstruction) with the original parallel format of OpenFoam (a seperate directory for each processor).
Since version 5, there is a new collated format for parallel decomposition (one directory irrespestive of the number of domains).

Is it possible to visualise the same without reconstructing the case?
Hi AqeelAhmed168,

Do you know how open the collated parallel files in paraview? I use mpirun -np 16 foamFormatConvert -fileHandler allocated -parallel to convert the results; then processor1-15 are deleted and processors16 is remained. But I do not know how to load them into paraview.
I created a dummy file case.foam in processors16 then 'paraview case.foam' but there is an error showing something like "processors16/constant/polyMesh/boundary: Expected keyword, closing brace, ';' or EOF, found ". No data is shown in paraview but the total time steps are shown correctly in "Current Time Control" (toolbar).

By the way, I use openfoam7 and the shipped paraview was not compiled but an official paraview 5.8 was installed separately.

I am not sure if paraFoam must be used to load the new collated file format. Hope someone can give me a hint.

Thanks,
Michael
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