Dispatch operator in group

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question

Ryosuke S asked Dec 21, '22 Felix Möhlmann commented Jan 6, '23

Dispatch operator in group

Is there anyway to dispatch operator in group?

I've created layout where there are 4 multiprocessor in the layout. 3 processes are defined in each mutiprocessor.

Process1 requires 3 operator. In this layout, there are 3 groups and 3 operator assigned to each group to do Process1. Group is controlled with dispatcher, each dispatcher (describing group) is controlled by dispatcher.

When Dispatcher 4 "Pass To" is defined as "first available", the first group goes to first multiprocessor, but when second multiprocessor requests for operator, nothing happens.

When Dispatcher 4 "Pass To" is defined as "Round Robin", each member from each group goes to first multiprocessor. This is not the behavior I expected.

How can I make 3 operator in same group work in mutliprocessor?

multiprocessor_sample.fsm

Software Version:

FlexSim 22.2.2

operators multiprocessor dispatchers

1671613585372.png (147.2 KiB)

multiprocessor-sample.fsm (130.1 KiB)

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Andrew O commented · Jan 05, 2023 at 07:13 PM

Hi @Ryosuke S, was Jason Lightfoot'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.

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Answer 1 · 2022-12-22T12:54:50Z

Jason Lightfoot answered Dec 22, '22 Felix Möhlmann commented Jan 6, '23

It seems you should connect each multiprocessor to the relevant dispatcher for the group that should do the work rather than one dispatcher. The reason is that the multiprocessor is sending 3 independant Travel, stop_request_finish tasks rather than one coordinated task sequence.

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Ryosuke S commented · Dec 27, 2022 at 06:36 AM

@Jason Lightfoot Is this what you mean? Please see attached. sample.fsm

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sample.fsm (52.7 KiB)

Jason Lightfoot ♦ Ryosuke S commented · Dec 29, 2022 at 02:12 PM

Does that do what you want - where are the mutliprocessors? I meant 3 dispatchers and each multiprocessor connected to a different one.

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Ryosuke S commented · Jan 06, 2023 at 01:56 AM

@Jason Lightfoot Oh, my apology. I think my mind was already on vacation at the time. This is the file which I wanted to show.

multiprocessor-sample2.fsm

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multiprocessor-sample2.fsm (91.2 KiB)

Felix Möhlmann Ryosuke S commented · Jan 06, 2023 at 11:58 AM

Functionally, what you have build is mostly the same as if all processors connected to a single, shared dispatcher.

This will work as long as the connected operators are always used in groups of 3. Since either a whole group would be available or busy (in which case the next three would be chosen), there shouldn't be any case that causes the groups to mix.

If single operators from a group might be busy with other tasks, so that the other group members would have to wait until they are finished, you would need a more sophisticated logic. For that I would recommend to use a list with a field that counts how many members of the respective group are available and then filter for operators where the entire group is free.

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