# A Primal-Dual Global Optimization approach on the Cutting Stock Problem

**URL:** <https://discourse.julialang.org/t/a-primal-dual-global-optimization-approach-on-the-cutting-stock-problem/129686>\
**Category:** Optimization (Mathematical)\
**Tags:** jump, algorithm, mip\
**Created:** [June 6, 2025, 3:13am UTC](https://discourse.julialang.org/t/a-primal-dual-global-optimization-approach-on-the-cutting-stock-problem/129686 "2025-06-06T03:13:57Z")\
**Posts on this page:** 1\
**Showing post:** 14

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**Author:** ![odow](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/odow/32/28685_2.png) [@odow](https://discourse.julialang.org/u/odow)\
**Post date:** [July 7, 2025, 3:49am UTC](https://discourse.julialang.org/t/a-primal-dual-global-optimization-approach-on-the-cutting-stock-problem/129686/14 "2025-07-07T03:49:03Z")

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Hi @WalterMadelim, I’m going to ask again that you consider setting up a personal blog for these sorts of posts. This forum is intended for Julia- (and JuMP-) related support questions. It isn’t intended to be a venue for longer form posts about algorithms.

We do greatly appreciate your “is this a feature or a bug” posts, and the Gurobi support team knows who “Walter from JuMP” is because of your many interesting bug reports. (This one in particular generated some nice internal discussion [Gurobi reports OPTIMAL on a QP having a huge MaxVio](https://discourse.julialang.org/t/gurobi-reports-optimal-on-a-qp-having-a-huge-maxvio/129645))

So take this message as both a “yes, please, keep up the high quality questions” and a “no, thanks, less of these posts which are more suited to a personal blog.”

> an MIP with all **integer data input** will be much easier for Gurobi to solve (e.g. to exact optimality)

I’ll repeat again: there are no performance guarantees. This claim is not true in general. (It can be true in some very specific cases. You may want to look up “total unimodularity”.)

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