octave: command not found

Submitted by zangthanh on Wed, 09/13/2017 - 16:51

Hello everyone,

I am a new CFDEM coupling, please forgive me if I post a stupid question.

After installing CFDEM coupling, I try to run some cases in tutorial. Most of the case show errors:

Finalising parallel run
rm: cannot remove '*.png': No such file or directory
/home/zang/CFDEM/zang-PUBLIC-3.0.x/run/packedBedTemp/parCFDDEMrun.sh: line 45: octave: command not found

and the image viewer say: No images found in 'file:///home/user/CFDEM/user-PUBLIC-3.0.x/run/packedBedTemp/CFD/octave/cfdemSolverPisoSTM_pressureDrop.png'.

Could you please help me to fix this problem. Thank you very much


alice's picture

alice | Mon, 09/18/2017 - 07:54

Hello Zang,
it seems that you did not install octave on your system, which is used for postprocessing and the generation of the png in question. For testing just open a terminal and type
If the same error message appears, just install that software package (on ubuntu you can use the command sudo apt-get install octave).

Naveen Kumawat | Sat, 02/09/2019 - 19:09

I have installed the octave through terminal but still getting same error.

like this - No images found in “file:///home/simulation/CFDEM/CFDEMcoupling-PUBLIC-5.x/tutorials/ParScale/cfdemSolverPisoSTM/packedBedTempParScale/CFD/octave/cfdemSolverPisoSTM_Nusselt.png”.

alice's picture

alice | Mon, 02/11/2019 - 13:46


your problem is in context with what you posted in the other thread (please try to report problems once, and collect all information at this one location, otherwise it is hard to help). Thhe image viewer throws an error message, because there is no image. The image could not be produced because the pressure information could not be loaded. Please check if the coupled simulation ran successfully by checking the log files. Usually such a file cannot be loaded because it has never been written.