Reply To: VTK Repeat Write
…that is because you still used mpirun despite not activating MPI (as I explained in my post). Do you not see the connection between 8 processes and 8 outputs? This never worked in the way you described. Of course VTK output also works without MPI if you execute the program in the correct way.
In any case, happy to hear that it works.
For your second point: This sounds as if you did not fully clear the tmp directory between individual tries.