Dynamic Fluid-Structure Interaction Tutorial Bug

[himakarganti]

I am trying to get the Dynamic FSI tutorial to work and have rebuilt SU2 for the python wrapper, as well as install all dependencies, including mpi4py, petsc and petsc4py. I am getting the following error and the fsi_computation.py file is showing that the allMarkersID variable has no attribute for keys. I am running the case with Ubuntu 20.04 with openmpi and python 3.8. Can someone please let me know what is causing this issue/ bug?

Traceback (most recent call last):
File "/usr/lib/python3.8/runpy.py", line 194, in _run_module_as_main
return _run_code(code, main_globals, None,
File "/usr/lib/python3.8/runpy.py", line 87, in _run_code
exec(code, run_globals)
File "/usr/local/lib/python3.8/dist-packages/mpi4py/main.py", line 7, in
main()
File "/usr/local/lib/python3.8/dist-packages/mpi4py/run.py", line 198, in main
run_command_line(args)
File "/usr/local/lib/python3.8/dist-packages/mpi4py/run.py", line 47, in run_command_line
run_path(sys.argv[0], run_name='main')
File "/usr/lib/python3.8/runpy.py", line 265, in run_path
return _run_module_code(code, init_globals, run_name,
File "/usr/lib/python3.8/runpy.py", line 97, in _run_module_code
_run_code(code, mod_globals, init_globals,
File "/usr/lib/python3.8/runpy.py", line 87, in _run_code
exec(code, run_globals)
File "/path/to/folder/SU2/SU2_PY/fsi_computation.py", line 259, in
main()
File "/path/to/folder/SU2/SU2_PY/fsi_computation.py", line 165, in main
FSIInterface.connect(FSI_config, FluidSolver, SolidSolver)
File "/path/to/folder/SU2/SU2_PY/FSI_tools/FSIInterface.py", line 314, in connect
if allMovingMarkersTags[0] in allMarkersID.keys():
AttributeError: 'tuple' object has no attribute 'keys'

[pcarruscag]

@Nicola-Fonzi is this something you've seen before?

[Nicola-Fonzi]

Dear @himakarganti, sorry for the very late reply, I completely missed your question. May I ask you which version are you using?

[alicezanella]

Hi everyone,

I'm facing the same problem too. I'm using the latest master version built with the python wrapper.

Seems like allMarkersID is a tuple and not a dictionary.

Thank you,
Alice

[TurboLdd]

Dear @himakarganti, sorry for the very late reply, I completely missed your question. May I ask you which version are you using?

Hi, I can explain the issue. It is about conducting unsteady fsi computation using Python. In the FSIInterface.connect(), the dictionary should be used. But after https://github.com/su2code/SU2/pull/1300 , the function returning dictionary was modified and return a list. Actually, I encounter this problem in 8.0.0 too.

[bsonic15]

Dear @Nicola-Fonzi,

I am having this same issue, was a solution found the last time the error was encountered? While @himakarganti has explained the issue, I am unable to convert the list output back to a dictionary (the link provided appears to be dead).

Any help would be greatly appreciated.

Thanks alot,
B