Process flow-create more tokens in the same code

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Marco Baccalaro asked Jun 15, '16 Marco Baccalaro edited Jun 15, '16

Process flow-create more tokens in the same code

In the attached model I have created 5 tokens on source OnReset.

This makes the Process Flow not work well:

At first, in the Event List I have 5 Delay Activity StepStartActivityEvent (this is the origin of the problem)
Then, going on step by step, 5 TimerEvents are created for the 5 tokens and the first StepStartActivityEvent is deleted
Then other 4 TimerEvents are created and another StepStartActivityEvent is deleted
Another 3 TimerEvents are created and another StepStartActivityEvent is deleted
Another 2 TimerEvents are created and another StepStartActivityEvent is deleted
Finally another TimerEvent is created and the last StepStartActivityEvent is deleted

This is a simple model but I saw that this problem causes strange things such as that token go to next activity after being pushed to a list and without being pulled.

This problem doesn't happen when I create the 5 tokens in the same time but in different events such as OnExit trigger of 5 different items. But it happen if I create a token OnCreation for 5 items created in the same simulation time. Is it a bug that will be solved or there are some rules to apply on tokens creation through code?

Software Version:

FlexSim 16.0.1

process flow tokens onreset

tokens-same-time.jpg (47.3 KiB)

tokens-same-time-same-activity.fsm (16.7 KiB)

Answer 1 · 2016-06-15T23:14:48Z

Brenton King answered Jun 15, '16 Marco Baccalaro edited Jun 15, '16

You shouldn't be creating tokens on reset, it causes problems. The developers recommend that you use a scheduled source that creates them at time zero. Will this work for you?

tokens-same-time-same-activity-solved.fsm (16.5 KiB)

· 1

Marco Baccalaro commented · Jun 15, 2016 at 11:16 PM

Sure, it works. Thank you. I’ll keep in mind this rule: do not create tokens on reset.

Just one thing to notice: if I send a delayed message and I create more than

one token in it I have the same problem.

I solve the problem if I send n messages and create a token in every message event.

So the problem is not on creating tokens on reset but on creating them all

from the same event.

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