modelica_Synchronous runtime error

[rahul.dutta.bits@…]

Not able to run modelica_Synchronous examples. It compiles correctly but crashes during runtime with the following error:

stdout | OMEditInfo | <p>/tmp/OpenModelica_rahul/OMEdit/Modelica_Synchronous.Examples.SimpleControlledDrive.ExactlyClockedWithDiscreteController -port=35846 -logFormat=xml -override=startTime=0,stopTime=5,stepSize=0.01,tolerance=0.0001,solver=dassl,outputFormat=mat,variableFilter=.* -r=Modelica_Synchronous.Examples.SimpleControlledDrive.ExactlyClockedWithDiscreteController_res.mat -jacobian=coloredNumerical -w -lv=LOG_STATS</p>

stdout | error | <p>Got number 30.000000, expected: 23.000000<br>

stdout | error | <p>Process crashed<br>
Simulation process failed. Exited with code 0.</p>

Running on Linux Debian Jessie. omc version 1.10.0~dev-595-g8fdd61b. OM flag --std=3.3

[Adrian Pop]

It seems the problem is with simulation flag: -lv=LOG_STATS.
Running from command line works fine:

> cat t.mos
loadModel(Modelica); getErrorString();
loadModel(Modelica_Synchronous); getErrorString();
simulate(Modelica_Synchronous.Examples.SimpleControlledDrive.ExactlyClockedWithDiscreteController); getErrorString();
// running t.mos
> ./omc +std=3.3 t.mos
true
""
true
""
record SimulationResult
    resultFile = "Modelica_Synchronous.Examples.SimpleControlledDrive.ExactlyClockedWithDiscreteController_res.mat",
    simulationOptions = "startTime = 0.0, stopTime = 5.0, numberOfIntervals = 500, tolerance = 1e-06, method = 'dassl', fileNamePrefix = 'Modelica_Synchronous.Examples.SimpleControlledDrive.ExactlyClockedWithDiscreteController', options = '', outputFormat = 'mat', variableFilter = '.*', cflags = '', simflags = ''",
    messages = "",
    timeFrontend = 0.22443394,
    timeBackend = 0.006147009,
    timeSimCode = 0.011732565,
    timeTemplates = 0.014316412,
    timeCompile = 0.308819234,
    timeSimulation = 0.015396438,
    timeTotal = 0.5809576950000001
end SimulationResult;
""

[Willi Braun]

This error means that the equations in json file are not in an expected order or not all are written to that file.

[Willi Braun]

Yes, the equations from SimCode.clockedPartitions are missing in SerializeModelInfo.serializeWork.

[Bernhard Thiele]

How difficult is it to fix this?

It's great that we now support a good portion of the synchronous features, but we can hardly advertise that as long as it doesn't work in OMEdit. As long as it doesn't work in OMEdit, users will perceive it as not working.

[Adeel Asghar]

Is there anything we need to add in OMEdit to support it?
From Willi's comment it looks like some information is missing in the json file which is causing the error.

[Willi Braun]

Replying to bthiele:

How difficult is it to fix this?

No, it's just write all additional generated equations into the json file.

[Willi Braun]

Fixed in 0e0982/OMCompiler.

[Bernhard Thiele]

Thanks a lot. Just recompiled and tested it and it worked :-)