Acquire closest task executer on process flow

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Leandro Meirelles asked Apr 30, '24 Felix Möhlmann answered May 3, '24

Acquire closest task executer on process flow

Hello,

I have a group of task executer and a group of operators, when I acquire both for a task, I need to acquire the task executer which is closest to the operator. How do i do that on process flow? I believe I need to write a query to filter it on the acquire block, but i don't know how.

Hope I was clear enough, otherwise I'll link my model and give more details on comments bellow. Thanks!

Software Version:

FlexSim 24.1.0

task executer aquire closest

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Joerg Vogel commented · Apr 30 at 07:29 AM

You choose first your operator. When you acquire a taskexecuter, you pass in a puller. This must be in a way be able to reference a location of your operator in a dynamic field of your resources to compute a distance to list values. Then you can order by this distance field the list values and acquire a resource.

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Leandro Meirelles Joerg Vogel commented · Apr 30 at 05:51 PM

I created a list "Carts list" and placed a "pull from list" before the acquire and and "push to list" before the release. But when i change the resource "Carts" to use the list instead of the group it gets errors, what I am doing wrong?

Follows attached the model: problem acquire.fsm

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problem-acquire.fsm (6.8 MiB)

Gustavo Teodoro Leandro Meirelles commented · May 02 at 02:25 PM

@Leandro Meirelles Which errors are happening? I ran the model and no errors appeared in the FlexSim console.

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Answer 1 · 2024-05-03T07:24:00Z

Felix Möhlmann answered May 3, '24

You are correct, you do not need a separate list. A resource that is linked to actual objects already creates a list for those internally and functions the same, just with fewer settings in the Acquire activity then in Pull from List.

One of those missing options is the ability to set who the "puller" is, so you need to shift the reference in the list field code. (The base for the list expression is the "distance" option from the "Fixed Resource" category)

capture1.png (48.4 KiB)

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