cant open exodus2 file

ParaView Support
#1

Hello,

if i try to open an .ex2 file i get the following Error Message:

ERROR: In C:\glr\builds\paraview\paraview-ci\build\superbuild\paraview\src\VTK\IO\IOSS\vtkIOSSReader.cxx, line 852
vtkIOSSReader (000001A5798B8ED0): Error in UpdateTimeInformation: 
ERROR: The topology type 'hexahedron20' is not supported on 'section-assembly_part-2-1_set-1' in file 'C:/Users/s.jaeger/Desktop/h.exo'

ERROR: In C:\glr\builds\paraview\paraview-ci\build\superbuild\paraview\src\VTK\Common\ExecutionModel\vtkExecutive.cxx, line 753
vtkPVCompositeDataPipeline (000001A579F770A0): Algorithm vtkIOSSReader(000001A5798B8ED0) returned failure for request: vtkInformation (000001A57B5850F0)
  Debug: Off
  Modified Time: 3596435
  Reference Count: 1
  Registered Events: (none)
  Request: REQUEST_INFORMATION
  FORWARD_DIRECTION: 0
  ALGORITHM_AFTER_FORWARD: 1



ERROR: In C:\glr\builds\paraview\paraview-ci\build\superbuild\paraview\src\VTK\Common\ExecutionModel\vtkExecutive.cxx, line 753
vtkPVCompositeDataPipeline (000001A579F770A0): Algorithm vtkIOSSReader(000001A5798B8ED0) returned failure for request: vtkInformation (000001A579773020)
  Debug: Off
  Modified Time: 3599218
  Reference Count: 1
  Registered Events: (none)
  Request: REQUEST_DATA
  FORWARD_DIRECTION: 0
  ALGORITHM_AFTER_FORWARD: 1
  FROM_OUTPUT_PORT: 0

why is the topology type “hexahedron20” not supported? if i try to open the file in another software (VisIt) it works fine

#2

HI @jaeg1710 ,

Looks like this cell type is not supported by the exodus reader. Did you try with the new one or the legacy one ?

(LegacyExodusReader plugin, available in 5.10.1).

Best,

#3

i initally tried with the “IOSS Reader” which doesnt work.

However I tried now with the “Legacy Exodus 2 Reader” PlugIn and it worked!

Thank you for the fast reply :slight_smile:

#4

@jaeg1710 could you open an issue on : https://gitlab.kitware.com/paraview/paraview/-/issues ?

FYI @utkarsh.ayachit @coreylee @jaswantp

#5

The hexahedron20 alias for the 20-noded hex is not supported. It is recognized as a hex20 or hexahedron_20 or Solid_Hex_20_3D.

Would just need to add hexahedron20 as an alias in projects/seacas/libraries/ioss/src/Ioss_Hex20.C…

#6

Sounds like a good idea? I assume older datasets should still run. Let us know when it’s in, and I can have Kitware do another pull of IOSS.

#7

I can also add a step where if the block topology isn’t recognized, it attempts using a subset of the passed in name. Most topologies start with 3 or 4 characters followed by an optional node count (hex20, tet4, quad9, …). If I add a test when the original name doesn’t match a valid topology and then I strip of the first 3 or 4 letters and add the (optional) node count to the end and then see if that matches a valid topology, it should recognize more topology types without having to explicitly list every possible alias.

Then hexahedron20 would be shortened to hex20 which will match…

#8

Modification is in. You can give it a try.