Model Stops Responding after Short Amount of Time

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Brad Noorman asked Aug 12, '19 Brad Noorman commented Aug 13, '19

Model Stops Responding after Short Amount of Time

Hello,

I have built (and attached) a simulation model to represent a future state blending operation in one of our manufacturing plants. There are 4 main activities happening in the model: Charging/Blending/PKG/Return Blenders, separated into 2 groups in the process flow: Mix/PKG.

After about 13 Simulation hours, the model begins to slow down to the point that it eventually times out and I have to close the application. To my knowledge, I cannot find any infinite loops or anything similar that could be causing this issue. Any help would be greatly appreciated.

Thank You,

Brad Noorman

future-state-1.fsm

Software Version:

FlexSim 18.0.10

support

future-state-1.fsm (77.1 KiB)

Answer 1 · 2019-08-13T09:26:00Z

Patrick Zweekhorst answered Aug 13, '19 Brad Noorman commented Aug 13, '19

Hi @Brad Noorman,

I am not sure why it goes wrong, but if you change some settings in the Mix processFlows create tokens it seems to run a lot better. I changed the "create as" to independent tokens, instead of child tokens. Maybe something goes wrong because a lot of tokens all have a child. So you have one token with a child, but that child also has a child ect. Your model does continue to run it only gets really slow. So I believe it has to do a lot of computations, and I think it is at the create tokens activity.

Again, what exactly goes wrong I don't know, but changing the settings in the create tokens does let your model run (without removing all kind of activities)

· 1

Brad Noorman commented · Aug 13, 2019 at 12:23 PM

Thank You Patrick! Creating the tokens as children was unnecessary and switching that to independent tokens seems to have solved the issue.

0 ·

Answer 2 · 2019-08-13T07:43:30Z

wonjo P answered Aug 13, '19

Hello. Brad

I find a loop from Create Tokens to Enter Charging Zone.

I can't understand why you need to back to the blend, so I delete that process.

If you need to back to there, please reply on reason for me.

Also, I can't understand why you need to Batch, so I delete that.

Finally, I can operate the model without stopping.

Thank you,

Park Won Jo

wonjo-future-state-1.fsm

wonjo-future-state-1.fsm (77.7 KiB)

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