# Regarding Editing the RAM and Compiling from GROMACS Source to improve performance

**URL:** <https://gromacs.bioexcel.eu/t/regarding-editing-the-ram-and-compiling-from-gromacs-source-to-improve-performance/4079>\
**Category:** User discussions\
**Tags:** hardware, cpu, gpu, mdrun-performance\
**Created:** [April 27, 2022, 5:01am UTC](https://gromacs.bioexcel.eu/t/regarding-editing-the-ram-and-compiling-from-gromacs-source-to-improve-performance/4079 "2022-04-27T05:01:40Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![pssahoo](https://avatars.discourse-cdn.com/v4/letter/p/76d3ee/32.png) [@pssahoo](https://gromacs.bioexcel.eu/u/pssahoo)\
**Post date:** [April 27, 2022, 5:01am UTC](https://gromacs.bioexcel.eu/t/regarding-editing-the-ram-and-compiling-from-gromacs-source-to-improve-performance/4079/1 "2022-04-27T05:01:40Z")

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GROMACS version: 2021.3  
GROMACS modification: Yes  
Here post your question Hi Where do I find the details of the CPU RAM which can be edited from current default limit of 16GB RAM to 32 GB RAM and then compile GROMACS and use with better performance.

Thanks in anticipation.