[CleverBoy]

Hello everybody,


I am trying the Inviscid Onera M6 tutorial with parallel computing but I encounter with the erros below:

parallel_computation.py -f inv_ONERAM6.cfg -n 3 NP
Traceback (most recent call last):
  File "/usr/local/bin/parallel_computation.py", line 30, in <module>
    sys.path.append(os.environ['SU2_RUN'])
  File "/usr/lib/python3.9/os.py", line 679, in __getitem__
    raise KeyError(key) from None
KeyError: 'SU2_RUN'

Anyone knows why is this happening and how can I solve this?

[TKatt]

Your shell does not know about the environmental variable SU2_RUN which contains the path to your SU2 binaries. In case you compile code yourself: when running meson it will give you the commands to execute in your shell to set the environmental variable


Otherwise just type in your shell (at least in linux)

export SU2_RUN="/path/to/your/SU2-binaries-folder"

[CleverBoy]

Originally Posted by TKatt

Your shell does not know about the environmental variable SU2_RUN which contains the path to your SU2 binaries. In case you compile code yourself: when running meson it will give you the commands to execute in your shell to set the environmental variable


Otherwise just type in your shell (at least in linux)

export SU2_RUN="/path/to/your/SU2-binaries-folder"

Dear Tkatt,


Thanks for your reply and I am sorry for the delay in answering.


I tried what you said. More problems occurred

parallel_computation.py -f inv_ONERAM6.cfg -n 3 NP
3 total processes failed to start
Traceback (most recent call last):
  File "/usr/local/bin/parallel_computation.py", line 110, in <module>
    main()
  File "/usr/local/bin/parallel_computation.py", line 55, in main
    parallel_computation( options.filename    ,
  File "/usr/local/bin/parallel_computation.py", line 88, in parallel_computation
    info = SU2.run.CFD(config) 
  File "/usr/local/bin/SU2/run/interface.py", line 112, in CFD
    run_command( the_Command )
  File "/usr/local/bin/SU2/run/interface.py", line 270, in run_command
    raise exception(message)
RuntimeError: Path = /home/ercan/SU2-NEMO/SU2/Inviscid_ONERAM6/,
Command = mpirun -n 3 /path/to/your/SU2-binaries-folder/SU2_CFD config_CFD.cfg
SU2 process returned error '132'
--------------------------------------------------------------------------
mpirun was unable to launch the specified application as it could not access
or execute an executable:

Executable: /path/to/your/SU2-binaries-folder/SU2_CFD
Node: ercanumut

while attempting to start process rank 0.
--------------------------------------------------------------------------

[bigfootedrockmidget]

You should of course replace /path/to/your/SU2-binaries-folder with the actual location of your SU2 binaries. When you run meson, meson will give this information to you on the screen. Do you run meson and ninja on a command line from a console?

[CleverBoy]

Originally Posted by bigfootedrockmidget

You should of course replace /path/to/your/SU2-binaries-folder with the actual location of your SU2 binaries. When you run meson, meson will give this information to you on the screen. Do you run meson and ninja on a command line from a console?

Oh sorry about that, I didn't realize it while I was rushing out from work . I did that way and it worked. Thank you for your help