About how to build the ModelOrderReduction plugin

[datou1209]

Can I precompile the Python3 version of SOFA, such as the sofa-v22.06 version, can I build the ModelOrderReduction plug-in?
How to build it?
Still only the python2 version is available.

[hugtalbot]

Hi @datou1209

You may find the MOR plugin within the SOFA binaries : https://www.sofa-framework.org/download/

About the Model Order Reduction python scripts, you now have python3-compatible scripts here : https://github.com/SofaDefrost/ModelOrderReduction/tree/master/python3/morlib/reduced_starfish

Let us know if you need more.
Note our upcoming session on MOR + Cosserat : #4141

[hugtalbot]

Let me ask @alxbilger or @olivier-goury if they have a hint about it

[datou1209]

Sorry, I have been a little busy and am only replying now. Thank you for your answer.
The plugin I installed has made progress, but I still haven't run through the test program. I used the v23.06 version of the modelorderreduction plug-in to reduce the order of the liver scene model under the official sofa_test_sence file. When executing reduceMyModel.phase4(), an error occurred. Got the error, I checked the output.log file, the error is as follows，I don’t understand the principle of order reduction, and I can’t determine whether it’s an environment problem or a program problem.

[<Sofa.Core.Object object at 0x7f2a06af3cc0>, <Sofa.Core.Object object at 0x7f2a06af3b80>, <Sofa.Core.Object object at 0x7f2a06af3db0>, <Sofa.Core.Object object at 0x7f2a06af39f0>, <Sofa.Core.Object object at 0x7f2a06af3d60>, <Sofa.Core.Object object at 0x7f2a06af3c70>, <Sofa.Core.Object object at 0x7f2a06af3e00>, <Sofa.Core.Object object at 0x7f2a06af3e50>, <Sofa.Core.Object object at 0x7f2a06af3ea0>, <Sofa.Core.Object object at 0x7f2a06af3ef0>, <Sofa.Core.Object object at 0x7f2a06af3f40>, <Sofa.Core.Object object at 0x7f2a06af3f90>, <Sofa.Core.Object object at 0x7f2a06af9040>, <Sofa.Core.Object object at 0x7f2a06af9090>, <Sofa.Core.Object object at 0x7f2a06af90e0>, <Sofa.Core.Object object at 0x7f2a06af9130>, <Sofa.Core.Object object at 0x7f2a06af9180>, <Sofa.Core.Object object at 0x7f2a06af91d0>]
node.getPathName() /liver
[<Sofa.Core.Object object at 0x7f2a06af9310>, <Sofa.Core.Object object at 0x7f2a06af92c0>]
Create new child modelMOR and move node in it
Create ModelOrderReductionMapping in node
/liver 0
/home/eintelligence/Desktop/mysofa/ext_plugin_repo/ModelOrderReduction/tools/sofa_test_scene/mesh/liverFine.vtu
/liver/visu 2
/home/eintelligence/Desktop/mysofa/ext_plugin_repo/ModelOrderReduction/tools/sofa_test_scene/mesh/liver-smoothUV.obj
/actuator 1
Unexpected error: <class 'TypeError'>
[INFO]    [SceneCheckerVisitor] Validating node "root" with checks: [SceneCheckDuplicatedName, SceneCheckMissingRequiredPlugin, SceneCheckUsingAlias, SceneCheckDeprecatedComponents, SceneCheckCollisionResponse]
[WARNING] [SceneCheckDuplicatedName]   
- Found duplicated names ['RequiredPlugin', ] in node '/'  
Nodes with similar names at the same level in your scene can crash certain operations, please rename them
[INFO]    [SceneCheckerVisitor] Finished validating node "root".
[WARNING] [Node(root)] An animation loop is required, but has not been found. Add an animation loop in the root of your scene to fix this warning. The list of available animation loop components is: [ConstraintAnimationLoop, DefaultAnimationLoop, FreeMotionAnimationLoop, MultiStepAnimationLoop, MultiTagAnimationLoop]. A component of type DefaultAnimationLoop will be automatically added for you.
[WARNING] [BoxROI(boxROIactuation)] No rest position yet defined. Box might not work properly. 
This may be caused by an early call of init() on the box before  
the mesh or the MechanicalObject of the node was initialized too
[WARNING] [MatrixLoader] Could not open matrix file /data/UniformMass_reduced.txt !!!
[WARNING] [MatrixLoader] Could not open matrix file /data/reducedFF_liver_0_weight.txt !!!
[WARNING] [MatrixLoader] Could not open matrix file /data/reducedFF_liver_0_RID.txt !!!
[WARNING] [MatrixLoader] Could not open matrix file /data/modes.txt !!!
========= STDERR-LOG============
[ERROR]   [SofaPython3::SceneLoader] Unable to completely load the scene from file '/tmp/sofa-launcher-qovwk7wy/phase3_performECSW.py'.  
Python exception:   
  TypeError: object of type 'filter' has no len()

At:
  /home/eintelligence/Desktop/mysofa/sofa/build/lib/python3/site-packages/mor/utility/writeScene.py(305): writeGraphScene
  /tmp/sofa-launcher-qovwk7wy/phase3_performECSW.py(79): createScene

[ERROR]   [ModelOrderReductionMapping(ModelOrderReductionMapping)] Error in number of modes: 8 asked, but only 0 present in input file: /data/modes.txt

[hugtalbot]

Dear @datou1209
I am not knowledgeable myself on the MOR plugin but I know its development and cleaning will restart this October 2023.
Next month you should get an answer from the dedicated engineer.

In the meantime, I hope @olivier-goury could guide you ..

By the way we might organize a training session on MOR in October as well. Let us know if you are interested

[hugtalbot]

Dear @datou1209
I am not knowledgeable myself on the MOR plugin but I know its development and cleaning will restart this October 2023.
Next month you should get an answer from the dedicated engineer.

In the meantime, I hope @olivier-goury could guide you ..

By the way we might organize a training session on MOR in October as well. Let us know if you are interested

[VannesteFelix]

Hello @datou1209,
The issue is resolved and merge into master, you can test it now !
The problem seems to come from an old python2 syntax that I missed going to python3.

[VannesteFelix]

Hi @datou1209 ,

Can you show me what the shell give you when you launch phase4 (and also before) ?
Most probably the issue comes from something broken in the plugin and I am working on it.

Have you check the data folder and is there something in it ?

[hugtalbot]

Any update @datou1209 ?

[github-actions[bot]]

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@datou1209
Feedback has been given to you by the project reviewers, however we have not received a response from you. Without further news in the coming weeks, this discussion will be automatically closed in order to keep this forum clean and fresh 🌱 Thank you for your understanding

[github-actions[bot]]

⚠️ ⚠️ ⚠️
@datou1209
In accordance with our forum management policy, the last reply is more than 4 months old and is therefore closed. Our objective is to keep the forum up to date and offer the best support experience.

Please feel free to reopen it if the topic is still active by providing us with an update. Please feel free to open a new thread at any time - we'll be happy to help where and when we can.