# Single precision MPAS-JEDI

**URL:** <https://forums.jcsda.org/t/single-precision-mpas-jedi/638>\
**Category:** JEDI\
**Created:** [November 14, 2024, 7:18am UTC](https://forums.jcsda.org/t/single-precision-mpas-jedi/638 "2024-11-14T07:18:25Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![LL\_GZ](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.jcsda.org/ll_gz/32/107_2.png) [@LL\_GZ](https://forums.jcsda.org/u/LL_GZ)\
**Post date:** [November 14, 2024, 7:18am UTC](https://forums.jcsda.org/t/single-precision-mpas-jedi/638/1 "2024-11-14T07:18:25Z")

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Hello，  
When installing MPAS-JEDI 3.0.1, how should I set up the installation for single precision? The default installation of MPAS-JEDI should be double precision.  
Thanks！

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<div class="post-metadata">

**Author:** ![byoung-joo](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.jcsda.org/byoung-joo/32/126_2.png) [@byoung-joo](https://forums.jcsda.org/u/byoung-joo)\
**Post date:** [November 14, 2024, 4:05pm UTC](https://forums.jcsda.org/t/single-precision-mpas-jedi/638/2 "2024-11-14T16:05:21Z")

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Hi @LL_GZ ,  
You can add `-DMPAS_DOUBLE_PRECISION=OFF` flag in your `ecbuild` or `cmake` step.

Thank you,  
BJ