# \#highs

**URL:** https://discourse.julialang.org/tag/highs/1642.md

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## [HiGHS OTHER\_ERROR](https://discourse.julialang.org/t/highs-other-error/134521)

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**Author:** [@ohmsweetohm1](https://discourse.julialang.org/u/ohmsweetohm1)\
**Replies:** 16\
**Last updated:** [January 8, 2026, 9:49pm UTC](https://discourse.julialang.org/t/highs-other-error/134521 "2026-01-08T21:49:17Z")

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What does this mean? Is it infeasible, is it solved? Thx Running HiGHS 1.12.0 (git hash: 755a8e027a): Copyright (c) 2025 HiGHS under MIT licence terms LP has 4246 rows; 3330 cols; 15361 nonzeros Coefficient ranges: Ma…

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## [HiGHS instance and model when used in a shared library](https://discourse.julialang.org/t/highs-instance-and-model-when-used-in-a-shared-library/133823)

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**Author:** [@asprionj](https://discourse.julialang.org/u/asprionj)\
**Replies:** 7\
**Last updated:** [November 24, 2025, 9:29am UTC](https://discourse.julialang.org/t/highs-instance-and-model-when-used-in-a-shared-library/133823 "2025-11-24T09:29:26Z")

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I use JuMP.jl with HiGHS.jl to solve an optimisation problem, then generate a shared library for this using JuliaC.jl. The shared library is used within a larger software. It is loaded once (at startup), and then always …

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## [Coloring in JuMP with start values](https://discourse.julialang.org/t/coloring-in-jump-with-start-values/133106)

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**Author:** [@gdalle](https://discourse.julialang.org/u/gdalle)\
**Replies:** 7\
**Last updated:** [October 14, 2025, 12:47am UTC](https://discourse.julialang.org/t/coloring-in-jump-with-start-values/133106 "2025-10-14T00:47:59Z")

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Hi there, I am tinkering with an optimal coloring algorithm for sparse autodiff. Here is the most basic constraint programming formulation I could find for partial distance-2 column coloring. Problem statement: color a…

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## [An infeasibility that seems to be dependent on the state of HiGHS (or JuMP)](https://discourse.julialang.org/t/an-infeasibility-that-seems-to-be-dependent-on-the-state-of-highs-or-jump/130969)

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**Author:** [@BdeKoning](https://discourse.julialang.org/u/BdeKoning)\
**Replies:** 5\
**Last updated:** [July 23, 2025, 12:52pm UTC](https://discourse.julialang.org/t/an-infeasibility-that-seems-to-be-dependent-on-the-state-of-highs-or-jump/130969 "2025-07-23T12:52:12Z")

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Hi all, I’m working on a water allocation optimization code with JuMP + HiGHS, and I came across an infeasibility. The weird thing is: HiGHS concludes that my model is infeasible when it runs embedded in my code, but whe…

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## [Feasibility cut from HiGHS and Mosek are different (Benders decomposition)](https://discourse.julialang.org/t/feasibility-cut-from-highs-and-mosek-are-different-benders-decomposition/125630)

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**Author:** [@saikrishna-nadella](https://discourse.julialang.org/u/saikrishna-nadella)\
**Replies:** 7\
**Last updated:** [March 20, 2025, 11:08pm UTC](https://discourse.julialang.org/t/feasibility-cut-from-highs-and-mosek-are-different-benders-decomposition/125630 "2025-03-20T23:08:35Z")

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Hi, I am implementing bender’s decomposition using JuMP in Julia. I am investigating generation of feasibility cuts using “dual\_objective\_value” and “reduced\_cost” of fixing constraint as detailed in JuMP documentation. …

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## [ERROR: Result index of attribute MathOptInterface.VariablePrimal(1) out of bounds. There are currently 0 solution(s) in the model](https://discourse.julialang.org/t/error-result-index-of-attribute-mathoptinterface-variableprimal-1-out-of-bounds-there-are-currently-0-solution-s-in-the-model/119586)

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**Author:** [@WuSiren](https://discourse.julialang.org/u/WuSiren)\
**Replies:** 2\
**Last updated:** [September 19, 2024, 9:03am UTC](https://discourse.julialang.org/t/error-result-index-of-attribute-mathoptinterface-variableprimal-1-out-of-bounds-there-are-currently-0-solution-s-in-the-model/119586 "2024-09-19T09:03:46Z")

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ERROR: Result index of attribute MathOptInterface.VariablePrimal(1) out of bounds. There are currently 0 solution(s) in the model. I got this error when solving an MILP model using HiGHS. Do anyone know what it means? T…

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## [Best way to generate vector of tuples based on two vectors](https://discourse.julialang.org/t/best-way-to-generate-vector-of-tuples-based-on-two-vectors/117687)

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**Author:** [@K5Julien](https://discourse.julialang.org/u/K5Julien)\
**Replies:** 4\
**Last updated:** [July 31, 2024, 5:58pm UTC](https://discourse.julialang.org/t/best-way-to-generate-vector-of-tuples-based-on-two-vectors/117687 "2024-07-31T17:58:21Z")

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The following does what I want, generate a vector of tuples thanks to the two vectors that I provide. xycoordinates = Tuple{Int,Int}\[(x,y) for x in collect(1:10), y in rand(1:10, 10)\] I wanted to know if there exists a…