Hi,
I have a big model that doesn't run in SM 13.2 (linux Version) but runs in SM 12.3 (Windows version).
I can't show the model because of intellectual property rights.
So, I hope you can give me at least a clue of what is happening.
That's the error I get when I try to validate the model in the 13.2 version:
Equation simplifications (alias elimination, etc) after successful index reduction revealed a structural singularity, where the following equations do not allow to solve for required variables:
Algorithm no: 1 outvars: {$dynState.set1.s[1,1], $dynState.set1.s[1,2], $dynState.set1.s[1,3], $dynState.set1.s[1,4], $dynState.set1.s[1,5], $dynState.set1.s[1,6], $dynState.set1.s[1,7], $dynState.set1.s[1,8], $dynState.set1.s[1,9], $dynState.set1.s[1,10], $dynState.set1.s[2,1], $dynState.set1.s[2,2], $dynState.set1.s[2,3], $dynState.set1.s[2,4], $dynState.set1.s[2,5], $dynState.set1.s[2,6], $dynState.set1.s[2,7], $dynState.set1.s[2,8], $dynState.set1.s[2,9]...
In my bug-hunt I found something strange, I have a sub-system that when validated in SM 13.2 returns:
Error: Simulation model is not globally balanced, having 43 variables and 34 equations. Validation of model "subsystem_name" completed with 1 error.
When I validate the big model in the 12.3 version I get a lot of notifications and some warnings, but no errors:
... Warning: Equation system in "bigmodel_name".body1.a_0[3] and 202 other variables is too
complex for checking conditional solvability that might be caused by if-expressions where the variable is only solvable in one of the branches. Warning: Equation system in "bigmodelname".body1.za[1] and 218 other variables is too complex for checking conditional solvability that might be caused by if-expressions where the variable is only solvable in one of the branches. Validation of model "bigmodel_tests".test completed successfully. The model is globally balanced with 1999 variables and 1999 equations. Among these, 1661 equations are trivial.
For the same sub-system, the validation in SM 12.3 returns:
Validation of model "subsystem_name" completed successfully. The model has 45 variables and 36 equations. Among these, 36 equations are trivial.
As far I understand, SM got more restrict rules when evaluating models. Is that a common issue in the newer version? Any hint on how to approach this problem?
SM 13.2 System
Product version: 13.2.0.7
Client: Model Center
Client version: 13.2.0.5
Client creation date: 2022-10-14T10:45:22.617528
Client build revisions: J:28d7cd00c, L:d83e98c31, S:0ae173cfb
Client build type: 64 bit
Kernel version: 13.2.0.6
Kernel creation date: 2022-10-13T12:47:55.408784
Kernel build revisions: J:28d7cd00c, L:d83e98c31, S:7f4cef66e
Kernel root directory: /usr/local/Wolfram/SystemModeler/13.2
Installation directory: /usr/local/Wolfram/SystemModeler/13.2
Platform: Linux Mint 21
SM 12.3 System
Product version: 12.3.1.7
Client: Model Center
Client version: 12.3.1.6
Client creation date: 2021-06-07T11:45:13.640000
Client build revisions: S:1b0160c02, J:1dbf5d051, L:38c242434
Client build type: 64 bit
Kernel version: 12.3.1.7
Kernel creation date: 2021-05-27T14:59:37.824000
