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Przemyslaw R avatar image
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Przemyslaw R asked Phil BoBo answered

Seperator Splitting Issue - Exponential Growth!!!!

Hi FlexSim gurus! I have created a Future State yesterday and my model including seperator logic (only one batch splitted into 48pcs allowed in Queue7) was working fine. But from today it keeps multiplying number of newly created items in exponential way. Every item split should be 48, but second split is doubbled and 3rd one is doubbled of 2nd etc.

Is it a bug or did I messed something up?


EF327 Future State.fsm

FlexSim 21.1.5
seperator
· 1
5 |100000

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Przemyslaw R avatar image Przemyslaw R commented ·

I think it's important to mention that yesterday(when everything was fine) I had 21.1.2 version. This morning I updated to 21.1.5

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1 Answer

Phil BoBo avatar image
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Phil BoBo answered

This model is behaving exactly the same in 21.1.2 and 21.1.5.

It looks like what changed is that Separator1's processing time was changed to 0. If you set the processing time to 1, then it behaves as you would expect.

The Separator is not creating exponential growth in how many splits it is making per flowitem. It is still producing 48 items per split. The problem is in how many items it is receiving.

With a processing time of 0, it is receiving more than 1 item at a time because of the timing of events. If you watch the EF327GS queue, you can see that it is sending multiple items to the separator all at once, each of which is being turned into 48 items.

You can work around this event timing issue by either using a processing time, or closing the input on entry of Separator1 and then reopening it at a later event. That will cause a delay in the processing of the event sending items from the EF327GS queue such that it will work properly.

ef327-future-state_1.fsm


5 |100000

Up to 12 attachments (including images) can be used with a maximum of 23.8 MiB each and 47.7 MiB total.