Experimenter Scenarios for Different Process Times

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Idoia A asked May 10, '19 Jordan Johnson answered May 10, '19

Experimenter Scenarios for Different Process Times

Hello,

I am trying to test a model that has two processors. Each processor has 2 different process times defined by values by case. I have set a label in each processor called Scenario. In the experimenter I have set the two variables using the object label option in which I give values to the label Scenario. For the performance measures, I have set two standard performance measures that will test the output of each processor.

The problem is that when I run the experiment I get the same results for each scenario and I do not know where the issue is. I would appreciate any directions. I am using version 19.0.2. I attach model. optimization.fsm

Thank you in advance,

Idoia

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optimization.fsm (504.5 KiB)

Answer 1 · 2019-05-10T18:29:49Z

Jordan Johnson answered May 10, '19

The experimenter is setting the new values correctly. I ran 20 replications of each, and you can see that the utilization values are very different between scenarios:

The other performance measures are based on the throughput of the Processor and the MultiProcessor. These values don't change, because about at time 25000, both the output queues fill up and block both the Processor and MultiProcessor. If you run the model for less time in the experimenter, or make it so that the queues don't block (add a sink, or increase the max capacity), then PFM3 and PFM4 will show a difference. The throughput per shift, however, is not affected by the change in speed. This is because the source creates an item once every 1.2 minutes, which is much slower than the processing time for either machine, so the machines process all parts created by the source.

different-scenarios.png (15.8 KiB)

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