reconstructPar_OpenFOAM
 

Hi All,

After completing a OpenFOAM simulation, when I am doing reconstructPar for large data sets, it is taking a lot of time. Is there a faster way t reconstruct my data? I am using interFOAM.
Thanks.

For postProcessing with Paraview you do not need to reconstruct your case. Paraview supports reading decomposed OpenFOAM cases:

- Open Paraview and select the .foam file of your case.
- Change the Case Type to Decomposed Case.

I hope this helps.

Yes thanks. But animation in decomposed case runs very slowly and if I want to transfer all of the data from HPC to local then I need foamToVTK for which I need to reconstructPar anyways.

Means can i foamToVTK parallely without doing reconstructPar? so that it will do foamTOVTK for each processor and write the entire thing in the main directory??
Thanks.

Hello,

Yes you can use foamToVTK or foamToEnsight in parallel to convert your data from your parallel case to VTK or Ensight format without reconstructing the case.
You can open both format in ParaView.

Regards,
Yann

Hi, Yes, I have done foamToVTK using mpirun -np foamToVTK -parallel and it has produced a VTK file in each processor dir as well as a total VTK in the main dir. But when I am trying to open it in paraview it is not as smooth as the VTK obtained after reconstructPar. There is some problem. There a lot of processor VTKs, processor boundary VTKs etc which is not properly loaded/displayed, etc.

Thanks.

Go for foamToEnsight in parallel. It will produce a single EnSight directory at the root of your case.

Yann

This sounds very wrong - there is no reason that foamToVTK in parallel should produce VTK files in each processor directory. Additionally, the processor boundaries should be suppressed, unless you have explicitly requested -processor-fields.
On the other hand, you have not stated anywhere which version of OpenFOAM you are using, so any concrete statement is not actually possible.