# JuMP takes long time to load the problem/model

**URL:** <https://discourse.julialang.org/t/jump-takes-long-time-to-load-the-problem-model/118593>\
**Category:** Optimization (Mathematical)\
**Tags:** question, jump\
**Created:** [August 25, 2024, 5:55pm UTC](https://discourse.julialang.org/t/jump-takes-long-time-to-load-the-problem-model/118593 "2024-08-25T17:55:55Z")\
**Posts on this page:** 4\
**Page:** 2

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**Author:** ![fstwn](https://avatars.discourse-cdn.com/v4/letter/f/e9a140/32.png) [@fstwn](https://discourse.julialang.org/u/fstwn)\
**Post date:** [September 4, 2024, 7:46am UTC](https://discourse.julialang.org/t/jump-takes-long-time-to-load-the-problem-model/118593/21 "2024-09-04T07:46:14Z")

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I run and the output is:  
135.278654 seconds (540.99 M allocations: 24.671 GiB, 76.77% gc time, 0.50% compilation time)

What is the meaning of ```  
set\_string\_names\_on\_creation(model, false)

```julia

```

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**Author:** ![zdenek\_hurak](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/zdenek_hurak/32/53118_2.png) [@zdenek\_hurak](https://discourse.julialang.org/u/zdenek_hurak)\
**Post date:** [September 4, 2024, 10:30am UTC](https://discourse.julialang.org/t/jump-takes-long-time-to-load-the-problem-model/118593/22 "2024-09-04T10:30:07Z")

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> [@fstwn](#):
>
> What is the meaning of ```  
> set\_string\_names\_on\_creation(model, false)

See the explanation in [Performance tips · JuMP](https://jump.dev/JuMP.jl/stable/tutorials/getting_started/performance_tips/#Disable-string-names)

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<div class="post-metadata">

**Author:** ![fstwn](https://avatars.discourse-cdn.com/v4/letter/f/e9a140/32.png) [@fstwn](https://discourse.julialang.org/u/fstwn)\
**Post date:** [September 4, 2024, 12:10pm UTC](https://discourse.julialang.org/t/jump-takes-long-time-to-load-the-problem-model/118593/23 "2024-09-04T12:10:16Z")

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Got it. Thank you.

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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:** [September 4, 2024, 11:07pm UTC](https://discourse.julialang.org/t/jump-takes-long-time-to-load-the-problem-model/118593/24 "2024-09-04T23:07:18Z")

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There are various things you could probably do to make this problem build faster.

But the bigger question is: should you try to solve a MIP with 10^7 variables on a laptop, and the answer is “no.”

[Previous page](https://discourse.julialang.org/t/jump-takes-long-time-to-load-the-problem-model/118593.md?page=1)