# Gromacs 2021 + cp2k

**URL:** <https://gromacs.bioexcel.eu/t/gromacs-2021-cp2k/4685>\
**Category:** User discussions\
**Tags:** qm-mm\
**Created:** [August 26, 2022, 6:17pm UTC](https://gromacs.bioexcel.eu/t/gromacs-2021-cp2k/4685 "2022-08-26T18:17:12Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![arcarneiro](https://avatars.discourse-cdn.com/v4/letter/a/b4bc9f/32.png) [@arcarneiro](https://gromacs.bioexcel.eu/u/arcarneiro)\
**Post date:** [August 26, 2022, 6:17pm UTC](https://gromacs.bioexcel.eu/t/gromacs-2021-cp2k/4685/1 "2022-08-26T18:17:12Z")

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GROMACS version: 2021.2  
GROMACS modification: No

Hello GROMACS users and developers.

I have a demand to compile GROMACS 2021.2 with CP2K 9.1. Is this combination supported? If so, how to do it?

I noticed that the cmake variables DGMX\_CP2K, DCP2K\_DIR and DCP2K\_LINKER\_FLAGS are available only in the 2022 version.

And from what I understood from [Installation guide — GROMACS 2021.6 documentation](https://manual.gromacs.org/2021-current/install-guide/index.html), the MiMiC interface integration only supports CPMD.

Thank you for your attention.

Best regards.

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**Author:** ![dmorozov](https://avatars.discourse-cdn.com/v4/letter/d/dec6dc/32.png) [@dmorozov](https://gromacs.bioexcel.eu/u/dmorozov)\
**Post date:** [October 25, 2022, 7:45am UTC](https://gromacs.bioexcel.eu/t/gromacs-2021-cp2k/4685/2 "2022-10-25T07:45:08Z")

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GROMACS - CP2K interface is only working in versions 2022 or later.

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<div class="post-metadata">

**Author:** ![arcarneiro](https://avatars.discourse-cdn.com/v4/letter/a/b4bc9f/32.png) [@arcarneiro](https://gromacs.bioexcel.eu/u/arcarneiro)\
**Post date:** [October 25, 2022, 11:13am UTC](https://gromacs.bioexcel.eu/t/gromacs-2021-cp2k/4685/3 "2022-10-25T11:13:19Z")

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Thank you.