Prioritize a queue as input vs another queue

Question

question

Marcos MNA asked Nov 26 2020 at 6:44 PM Ben Wilson commented Dec 02 2020 at 1:32 PM

Prioritize a queue as input vs another queue

Hi, I would like to prioritize a port vs another one. In my model (I attach it), I want prioritize "Queue6" vs "Queue3" as inputs in "Processor3".

Prueba 1.fsmI have tried to select Pull strategy -> Pull Item with Maximimum Time in System and it does not work. The perfect system would be looking if there is a item in "Queue6", "Queue6" will be the input port, if there is anyting in "Queue6", "Queue3" will be the input port. If the option "Pull Item with Maximum Time in System", it would be fine too!

Thank you!

Software Version:

FlexSim 20.2.0

flexsim 20.2.0 queue content prioritization prioritize ports

prueba-1.fsm (37.6 KiB)

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Answer 1 · 2020-11-26T21:30:32Z

Jason Lightfoot answered Nov 26 2020 at 9:30 PM Jason Lightfoot edited Nov 27 2020 at 12:44 PM

Just order the inputs with the hightest priority first - what you're describing is then default behaviour. Use the arrows shown to change the port sequence.

1606426212884.png (4.0 KiB)

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Marcos MNA commented · Nov 26 2020 at 9:50 PM

Thank you for your answer. I have just tried to solve the problem with the option you gave me and it does not work well either... Could you take a look at my model in order to search any error you can find? Or if you think it could be an error in another place... Thank you!!

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Jason Lightfoot ♦♦ Marcos MNA commented · Nov 27 2020 at 12:42 PM

I don't know what you did wrong since you didn't attach a model.

In the attached model based on your initial model I made these changes:

Removed the sendtoport on Queue3 (there's only one port out so not needed)
Swapped the ports so that the 'rework' queues 5 and 6 feed into port 1 of the processors as I described above (this is what @Gokulakrishnan Kandasamy did too).
Make the pull "Any Port" - which be default will consider ports in the order of the input connections. By the model, these have to be the longest in the system since they've been through more processes - so you don't need to pull by maximum time in the system.

prueba-1_jl.fsm

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prueba-1-jl.fsm (35.1 KiB)

Answer 2 · 2020-11-27T04:57:00Z

Gokulakrishnan Kandasamy answered Nov 27 2020 at 4:57 AM

@Marcos MNA Look into the model. I think you want to do this. prueba-1_gk.fsm

prueba-1-gk.fsm (36.3 KiB)

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