How to set the maximum queue capacity to unlimited

Question

question

MC Bunji asked Jul 16 2023 at 10:19 AM Julie Weller commented Jul 25 2023 at 1:37 PM

How to set the maximum queue capacity to unlimited

Hey, Flexsim Gurus!

How can I set the maximum queue capacity to unlimited?

Software Version:

FlexSim 23.1.3

queue size unlimited queue capacity

· 4

Joerg Vogel commented · Jul 17 2023 at 4:43 AM

@MC Bunji , please don’t do that, because you would include a source of model failure by default. You could set for example a vast high capacity of all created items of a simulation run instead.

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Julie Weller commented · Jul 17 2023 at 1:47 PM

Hey @MC Bunji! What's your ultimate goal with setting it to be unlimited?

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MC Bunji Julie Weller commented · Jul 20 2023 at 9:31 AM

I will have to use the experimenter function to find the throughput under 10 replications, which will be the sum of the items on the queues.

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Julie Weller commented · Jul 25 2023 at 1:37 PM

Hi @MC Bunji, was Felix Möhlmann's answer helpful? If so, please click the "Accept" button at the bottom of their answer. Or if you still have questions, add a comment and we'll continue the conversation.

If we haven't heard back from you within 3 business days we'll auto-accept an answer, but you can always comment back to reopen your question.

0 ·

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Answer 1 · 2023-07-20T11:51:40Z

Felix Möhlmann answered Jul 20 2023 at 11:51 AM Jason Lightfoot edited Jul 20 2023 at 1:04 PM

There are better ways to measure throughput than to keep every item in a queue.

You can let the items flow into a sink and use the sink's input/output stat to measure the throughput. You can pin it to a dashboard and if needed, you can sample that table/chart to copy the value into a performance measure.

measure-throughput-fm.fsm

And even if you want to use the queue and keep the items. Just use a very large value as the capacity as Jörg suggested. I'd wager your PC is going to run out of RAM long before the model reaches something close to 1 billion items.

measure-throughput-fm.fsm (29.7 KiB)

· 1

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