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[General] No cgns reader in Windows version

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Old   March 18, 2018, 13:34
Default No cgns reader in Windows version
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So I'm using an in-house CFD code developed in my department. It allows you to export volume data in cgns format. This data can be read properly in Linux version of Paraview (5.2.0,5.4.0,5.4.1,etc.). But the same files, when I try to open them in Windows version of Paraview, won't open although it shows cgns as one of the supported formats.
I've tried 5.0, 5.2.0, 5.4.0, 5.4.1, 5.5.0, tried mpi and non-mpi versions, tried .zip versions as well as .exe installers but still can't get Paraview to read cgns.
In 5.5 it just opens the file but doesn't allow me to select the data to be read. If I choose apply it only loads the coordinates (no other data such as pressure,temperature,velocity components, vorticity components,etc.). Whereas in older versions it just opens the 'Open data with ..' reader selection window.
I can assure that there is nothing wrong with the data, because I've successfully read and worked on the same files on Paraview installed on Ubuntu and CentOS.
I've even tried on Paraview installed on same machine in Windows10 and Ubuntu, the one on Ubuntu reads it, Windows 10 doesn't. So it isn't a hardware issue either.
Kindly guide me to what is causing this. I depend heavily on Paraview to analyse my data and this is a big handicap for me currently.
Thanks in advance.
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Old   July 3, 2019, 05:07
Default still nothing works for me
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Hi Averis, hi all,

I am wondering whether you found a solution?

I am using Windows 10 and the new release from paraview homepage (v.5.6.1 64bit, released in june). I don't even see a CGNSseries reader, but *.cgns is listed in the formats to open.

Is there a tool or some program we need to install as well?

Thanks in advance!

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Old   May 20, 2020, 02:26
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Is there any update on this?

Last edited by sersol; May 22, 2020 at 02:36.
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Old   May 20, 2020, 04:09
Default Same here
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Hi all,

I generated a bunch of meshes using both the latest version of CGNS (v4.1.1) and an older version (v3.3.1) which should be supported since Paraview 5.5.0 according to this press release (

In both cases, I see the exact same issue you are describing. Everything works fine on Linux (v5.8.0), but on Windows (v5.8.0), I can't find an appropriate reader for my large CGNS files (small/medium grids work ok).

These grids all pass the cgns-checker and can be visualized using cgns-plot and Tecplot (only with CGNS v3.3.1 for Tecplot though). It looks like something might be off with the Windows version of ParaView for large files (unless we are all doing something wrong somehow).
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cgns, paraview, windows 10

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