endSim of distributed simulation

[rpinon]

Hello,

I use the ExperiementManager to launch several simulations.

I want to save my model after each simulation run. Without distributed simulation that works perfectly but when I want to use distributed simulation it just saves the last one.

So I try to catch the endSim to save my model, but...

• I try to use an endSim method, it doesn't work
• I try to use a waituntil EventControler.isRunning, it doesn't work
• I try to use the UserEvaluation method, it doesn't work

Is there a way to catch the endSim before the "remoteEndSim" ?

[AlexD_SimPlan]

Hello rpinon,

have you checked out the "save-model" option of the ExperimentManager? Maybe it's what you need:

Best Regards,
Alex

[rpinon]

Hello,

Yes, I use it for a non distributed simulation and It works.

But with the distributed mode it saves only the last experience.

Regards 

[AlexD_SimPlan]

OK, then how about the user-evaluation-method (also under advanced settings)? This should work. I've tried it (but I used distributed simulation only on my local computer, not on several machines). Maybe you used an invalid folder/filepath? The folder must already exist for the saveModel-function. If you don't provide a specific filepath, it may save the model, but I don't know where (definitely not at the location suggested by the documentation...). Try this code:

-- After an observation you can perform special evaluations.
(localExp, localRun: integer;
 unused: integer /*always 0*/)
is
	sDestFolder : string; 
do
	
	-- save model-file for each observation
	sDestFolder := "C:\xxx\ExpModels";
	saveModel(to_str(sDestFolder, "\Model_",localExp,"_",localRun,".spp"));
	
end;

[JamesM]

Hello

If needed you can add the following to create a folder to save the files into.

if NOT ExistsFile(sDestFolder) then
    startExtProc(To_Str("cmd.exe /C mkdir \"", sDestFolder, "\""), false, true);
end;

JamesM

[rpinon]

So,

I test your solution (simulation attached) and I have exactly the same result :

• non distributed ==> 3 saves
• distributed ==> 1 save

I don't know why but, it seems that experiments in distributed are like observation.

See below :

 

Maybe it is the problem. 

Regards,

[AlexD_SimPlan]

In this model, the attribute "ModelDir" is an empty string, so you create an invalid filepath and "savemodel" is not executed successfully. When I provide a valid filepath and directly use the savemodel-function, your model works and saves like a charm for me, with and without distribution.

If it still doesn't work: what Patch-Version do you have?

[rpinon · Accepted solution]

I use Plant simulation 13.0.0.

And i get my mistake.

in my "evaluation method", I use the variable "currExpNo" and with distributed simulation "currExpNo" doesn't exist or doesn't change.

I change to "localExp" and now it work.

-- After an observation you can perform special evaluations.
param localExp, localRun: integer,
unused: integer /*always 0*/

print "EVAL Experiment",localExp," Observation: ",localRun

var ModDirLoc := to_str(ModelDir,"\\",savefile,localExp,".spp")
executeSilent("param modStr:string saveModel(modStr,false,false)",ModDirLoc)

thanks a lot for your answers