Problem during running Initial Inventory

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Thanaporn asked Jan 16, '24 Felix Möhlmann commented Jan 18, '24

Problem during running Initial Inventory

Dear all,

Based on this question, Setting Rack Storage System based on SKUs and Batch - FlexSim Community

Please find my model attached below.

I set the initial inventory at time 0 and run the process feeding to see the saturation of rack storage.

my items have 63 SKUs, and each SKU has 2 batches, the rule is only same SKU and same batch can storage in the same level together.

Now, to start running my model, it takes very long time to set up initial inventory at time 0.

Is there any way that can reduce the time and resource? because when I run the model, my computer lags and becomes very slow.

Thank you for your answer.

ASRS Storage Warehouse.fsm

Software Version:

FlexSim 24.0.1

asrs rack storage

asrs-storage-warehouse.fsm (4.4 MiB)

Answer 1 · 2024-01-16T09:32:15Z

Felix Möhlmann answered Jan 16, '24 Felix Möhlmann commented Jan 18, '24

Fastest I could get it to with the Find Slot activity is about a minute to fill up the storage.

I combined the two labels into one, made it indexed and removed the ORDER BY clause from the Find Slot queries (I don't know if that one was required by you).

asrs-storage-warehouse-fast.fsm

I could get the same filling result in about 15s by using a partitioned list that holds individual levels and information about their slots.

asrs-storage-warehouse-fast_1.fsm

Note: If you upload a model, please fix any error message first. Testing a model is easier if you don't get a big list of error message on every reset. (I don't know what the slug settings on the conveyors are supposed to accomplish. A slug building conveyor with a slug size of one behaves like a normal conveyor apart from maybe the release speed which is set at the speed of the conveyor anyway in your model).

asrs-storage-warehouse-fast.fsm (1.7 MiB)

asrs-storage-warehouse-fast-1.fsm (1.7 MiB)

· 6

Thanaporn commented · Jan 16 at 10:28 AM

Thank you so much for your support.

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Thanaporn commented · Jan 16 at 11:19 AM

Hi, I ran your model and the result shown that all items on the rack are SKU 1 Batch 1.

In addition, the result storage on the rack is under from the real result.

Can you please help me to fix this problem?

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1705403932436.png (571.0 KiB)

1705404067777.png (37.3 KiB)

Felix Möhlmann Thanaporn commented · Jan 16 at 11:35 AM

Right, I tested if virtualizing the items would have any effect on the filling speed (it does not).

That would make the items loose their label values if the labels weren't defined in the Storage System Properties.

Just deactivate the option again.

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capture1.png (7.2 KiB)

Thanaporn Felix Möhlmann commented · Jan 17 at 02:40 AM

Thank you so much. It's work!!

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