Hello Paraview community,
I have troubles processing big endian Plot3D files in an automated testing environment on Docker using
pvpython. My script is pretty simple: open the
xyz and the
q file, extract data on a line, and write it to a text file. The process crashes when creating the writer object:
pvpython: /build/paraview-lH8wFv/paraview-5.4.1+dfsg3/VTK/IO/Parallel/vtkMultiBlockPLOT3DReader.cxx:1464: virtual int vtkMultiBlockPLOT3DReader::RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*): Assertion `record.AtEnd(offset)' failed. Aborted (core dumped)
The crash depends on the Docker image used: it occurs with Ubuntu 18.04.1 LTS (using Paraview 5.4.1+dfsg3-1), but not with OpenSUSE Leap 15.0 (using Paraview 5.4.1-lp150.2.20, which has not been compiled with MPI support, maybe this explains the difference).
The problem seems to be related to the VTK library. I found that the incriminated function
RequestData was removed in v8.2.0.rc1. Could this be an explanation?
Little endian Plot3D files are fine, on the other hand. Can someone explain the difference in behavior of Paraview? Also, what can I do on my side, especially if I have to stick with the Ubuntu Docker image?