# Reduce allocations for 3D Arrays

**URL:** <https://discourse.julialang.org/t/reduce-allocations-for-3d-arrays/89667>\
**Category:** General Usage\
**Tags:** question\
**Created:** [November 2, 2022, 4:42pm UTC](https://discourse.julialang.org/t/reduce-allocations-for-3d-arrays/89667 "2022-11-02T16:42:08Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![xspeng](https://avatars.discourse-cdn.com/v4/letter/x/90ced4/32.png) [@xspeng](https://discourse.julialang.org/u/xspeng)\
**Post date:** [November 2, 2022, 4:57pm UTC](https://discourse.julialang.org/t/reduce-allocations-for-3d-arrays/89667/3 "2022-11-02T16:57:47Z")

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I think for the initial program because it has 136 equations and it needs to calculate the common part many times so that it has a long run time. But I didn’t, maybe I should. if you are interested see this link,

[https://discourse.julialang.org/t/reduce-allocations-increase-the-running-speed-for-large-scale-odes-136-equations/89253](https://discourse.julialang.org/t/reduce-allocations-increase-the-running-speed-for-large-scale-odes-136-equations/89253)

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