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Hi All,

          I'm on Nektar version 5.1.0, ending with datasets composed of moderate size files in numbers reaching few hundreds using the Incompresible Navier-Stokes Solver,
I just want to use parallel FieldConvert to speed up the conversion process (which actually provide a real gain in speed) and produce a single vtu file, since opening *.pvtu format datasets gave an error in paraview-openmpi-5.9.1 ,
The command I'm using for parallel FieldConvert looks like this:

mpirun    -n 16    FieldConvert    -m   mapping     model.xml     model_i.chk     model_i.vtu

this creates n .vtu files under a .pvtu header, which as I reported earlier gives rise to this error:

ERROR: In /builddir/build/BUILD/ParaView-v5.9.1/VTK/IO/XML/vtkXMLPDataReader.cxx, line 315

vtkXMLPUnstructuredGridReader (0x55ffb1431450): File for piece 0 cannot be read.

 
Is it possible to produce one single .vtu file out of parallel FieldConvert ?

Thanks in advance, any help on this or workaround will be really appreciated,

Kind regards,

Saad