Model stopped working with recent changes

[Martin Sjölund]

​From our forums

Recently the svn revision of the stable version was bumped from 12318 to 12630. The new revision fails to linearize my aircraft model even after some cleanup of obvious changes (unless I'm missing something). I also tested release/ nightly and neither work. Can stable be restored to previous version or the linearization issues fixed?

I made a total model (attached). It seems to fail for both linearisation and without.

[Martin Sjölund]

On second though, I will make a new total.mo with annotations in it...

[Martin Sjölund]

Ok, now it fails with linearization:

omc +preOptModules=inlineArrayEqn,partitionIndependentBlocks +postOptModules=inlineArrayEqn,constantLinearSystem,removeSimpleEquations,generateSymbolicLinearization +d=linearization,gendebugsymbols +s total.mo

[james.goppert@…]

I got it working by disabling all of my saturation blocks and by disabling profiling (due to table profiling bug).

So really there are two bugs in the lastest svn:

• Cannot linearize Modelica.NonLinear.Limiter
• Cannot profile diagrams (measureTime) with Modelica.Blocks.CombiTables

[Martin Sjölund]

Profiling CTTT seems to work for me, but there could be issues for larger models using it perhaps. Could you produce a total model that causes the error?

setCommandLineOptions("+showAnnotations");
saveTotalModel("file.mo", ModelName);

This is the model that worked for me:

loadModel(Modelica);
loadString("model CTTTest
  Modelica.Blocks.Sources.CombiTimeTable cttt(table =
  [0,  0;
   1,  0;
   1,  1;
   2,  4;
   3,  9;
   4, 16]);
end CTTTest;");
simulate(CTTTest,stopTime=10,measureTime=true);getErrorString();
val(cttt.y[1],0.0);getErrorString();
val(cttt.y[1],1.3);getErrorString();
val(cttt.y[1],3.7);getErrorString();

[Martin Sjölund]

Postponed until 1.9.1