Question about running Model Order Reduction

[SamuelD5523]

Hi community,

I have a question about running the modelOrderReduction.py by sofa-launcher. Although I have set the environment SOFA_ROOT and PYTHONPATH, it still give me the error when I used the command sudo python modelOrderReduction.py:
`s@s-virtual-machine:~/sofa/MOD/ModelOrderReduction-master/tools$ echo $SOFA_ROOT/home/s/sofa/v21.06

s@s-virtual-machine:~/sofa/MOD/ModelOrderReduction-master/tools$ echo $PYTHONPATH
/home/s/sofa/v21.06/tools/sofa-launcher/

s@s-virtual-machine:~/sofa/MOD/ModelOrderReduction-master/tools$ sudo python modelOrderReduction.py
Traceback (most recent call last):
File "modelOrderReduction.py", line 20, in
from mor.reduction import ReduceModel
File "/home/s/sofa/MOD/ModelOrderReduction-master/tools/../python/mor/reduction/init.py", line 16, in
from reduceModel import ReduceModel
File "/home/s/sofa/MOD/ModelOrderReduction-master/tools/../python/mor/reduction/reduceModel.py", line 40, in
+"export PYTHONPATH=/PathToYourSofaSrcFolder/tools/sofa-launcher")
ImportError: You need to give to PYTHONPATH the path to sofa-launcher in order to use this tool
Enter this command in your terminal (for temporary use) or in your .bashrc to resolve this:
export PYTHONPATH=/PathToYourSofaSrcFolder/tools/sofa-launcher`

Can anyone help me with error? Thanks.

[hugtalbot]

Thanks a lot for your interest and sharing your issue @SamuelD5523
Let me poke the right guys here : @olivier-goury @VannesteFelix could you help us here guys? 🙏

[SamuelD5523]

Thank you hugo for helping me.

[VannesteFelix]

Hello @SamuelD5523,
Thank you for using our plugin and giving us feed back.

It seems that you have a python import error for the sofa-launcher.
As written in the error you can resolve it by adding the sofa-launcher folder path into your PYTHONPATH as follow:

export PYTHONPATH=/PathToYourSofaSrcFolder/tools/sofa-launcher

But it also seems that there is no sofa-launcher folder in the binaries and I don't know why... @hugtalbot ?

You can nevertheless get it here and you only need the launcher.py file.

[hugtalbot]

Do you refer to the MOR binaries @VannesteFelix : https://github.com/SofaDefrost/ModelOrderReduction/releases/tag/release-v21.12 ?

[VannesteFelix]

No I mean in the SOFA binaries we don't have the tools folder (which include the sofa-launcher) but maybe I need to put it directly inside the MOR plugin now.

[hugtalbot]

ow I get it @VannesteFelix
the sofa-launcher has nothing specific to MOR right? if so, it does make sense to have it within SOFA and then we should indeed distribute it with the releases!

[SamuelD5523]

Hi @VannesteFelix ，

Thanks so much for your reply.

Actually, I have already added the sofa-launcher path to the PYTHONPATH. As you can see, when I command echo $PYTHONPATH in terminal, it did return the path of sofa-launcher in the tools folder. That is why it is so confused that I couldn't run the modelOrderReduction.py. The v21.06 folder is the fold for SOFA version 21.06.

s@s-virtual-machine:~/sofa/MOD/ModelOrderReduction-master/tools$ echo $PYTHONPATH /home/s/sofa/v21.06/tools/sofa-launcher/

Regards.
Samuel

[VannesteFelix]

Hey @SamuelD5523 it's done !
You need the current master of MOR & SofaPython3 & STLIB.
It's not quite stable but if you want I can be available on gitter (or else) to help you tomorrow afternoon on your reduction problem.

[SamuelD5523]

Hi @VannesteFelix very appreciate it and thanks for your time helping me. My project is too slow and really needs method to speed up. No sure how long it takes for me to try the new version out. But I will update the outcomes later on this thread to let you know how it goes.

[hugtalbot]

good luck @SamuelD5523 , keep us posted!

[SamuelD5523]

Hi @VannesteFelix It seems now it can find the launcher.py. The error disappeared. However, it came out the error ModuleNotFoundError: No module named 'objToAnimate'. Then I have to modify the __init__py by changing the from objToAnimate import ObjToAnimate to the from mor.reduction.container.objToAnimate import ObjToAnimate in order to solve the issue. But another error appeared and indicated a syntax error in /python/mor/reduction/container/packageBuilder.py", line 151 print "Unexpected error:", sys.exc_info()[0]. I am a bit worried if I am on the right track. Can I ask which master version of MOR you refer to? I saw in the release web page it has a zip for master and a zip for source code. However, here https://github.com/SofaDefrost/ModelOrderReduction has a completed version, so I am using this one.

Also, it seems it still refer to the library in the python folder instead of python3.

[VannesteFelix]

Hello @SamuelD5523, sorry for the delay. I am quite in a rush at the moment.
I did not really understand from which file did you had the import error ?
Yes you need to use the master on the github, either the sources if you compile with SOFA or the master binaries on the github release page. You where referring to this as "the release web page" ?

Again I don't know on which deadline you are but depending on the urgency, we can arrange a meeting to resolve your issues.