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Jun 16, 2020 at 05:32 PM

IBP Supply Optimizer with Discretization horizons fails all the time

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  • Hello Optimizer community,

I am running optimizer with different settings,

  • Standard: Delivery Maximization or Profit Maximization, no Discretization horizons, no Fair Share
  • Fair Share mode: Delivery Maximization or Profit Maximization, Fair Share, no Discretization horizons,
  • Discrete mode: Delivery Maximization or Profit Maximization, Discretization horizons (13 weeks), No fair Share

The first two are running perfectly and are giving me intuitive answers. However, the discrete one is always failing and I have spent already a couple of hours trying to figure it out. Unfortunately I haven't found a lot of documentation about this and business log, even in explanation mode doesn't say much when it fails, it only says the optimizer failed to find a solution.

Here is what i've tried to do:

  • Increase runtime to double (almost 30 minutes), I could increase it more, it's just it used to work in shorter time than that
  • Check minimum, maximum and incremental lot sizes and compare them with other hard constraints like Maximum Key figures or Capacity

I know that if the first two modes run ok then the issue is in the lot sizes is just is hard to pinpoint the issue. Have anyone experienced this before, any guidelines of what or how to check in this cases would be greatly appreciated.

Thank you in advance!