# \#caching

**URL:** https://discourse.julialang.org/tag/caching/1777.md

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## [Save a simplified ModelingToolkit problem as text](https://discourse.julialang.org/t/save-a-simplified-modelingtoolkit-problem-as-text/128124)

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**Author:** [@Bart\_van\_de\_Lint](https://discourse.julialang.org/u/Bart_van_de_Lint)\
**Replies:** 6\
**Last updated:** [April 19, 2025, 7:56pm UTC](https://discourse.julialang.org/t/save-a-simplified-modelingtoolkit-problem-as-text/128124 "2025-04-19T19:56:03Z")

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Because structural\_simplify is slow, I want to write the simplified system to a file, from where I can load it later. Using serialize("sys.bin", sys) works, but this causes problems when switching between julia versions,…