Hi,

I tested Optaplanner successfully for a fleet planning application.
Upto 1200 trips with around 80 vehicles for 3 days is fine.
I'm reaching the target of 0 hard constraints in less than 30 minutes.

But my target is to plan for a month with 12000 trips using 80 vehicles.
This time it didn't complete even after 12 hours.
I found the memory (< 500 MB) and CPU (25%) usage is less.
So tried running 3 solver threads and grouping the vehicles.
Now CPU usage increases.

I followed the vehicle routing sample application and the config xml is very 
similar.
I used late acceptance (200) and accept count (1000).

I'm using incremental score calculation; and applied change & swap filters in 
the config xml.

Requesting experts for some thoughts on how Optaplanner can scale on similar 
situations.

Thanks & Regards,
Rupesh





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