# After make install, gmx\_mpi does not work

**URL:** <https://gromacs.bioexcel.eu/t/after-make-install-gmx-mpi-does-not-work/10463>\
**Category:** User discussions\
**Created:** [November 1, 2024, 12:15am UTC](https://gromacs.bioexcel.eu/t/after-make-install-gmx-mpi-does-not-work/10463 "2024-11-01T00:15:04Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![chaofan](https://avatars.discourse-cdn.com/v4/letter/c/dfb087/32.png) [@chaofan](https://gromacs.bioexcel.eu/u/chaofan)\
**Post date:** [November 1, 2024, 12:15am UTC](https://gromacs.bioexcel.eu/t/after-make-install-gmx-mpi-does-not-work/10463/1 "2024-11-01T00:15:04Z")

</div>

GROMACS version: gromacs-2022.6  
GROMACS modification: No

```shell
# cmake
export CMAKE_PREFIX_PATH=/data/chaofan/software/fftw-3.3.10/
cmake .. -DGMX_MPI=ON \
-DGMX_GPU=CUDA \
-DCUDA_TOOLKIT_ROOT_DIR=/usr/local/cuda \
-DCUDA_INCLUDE_DIRS=/usr/local/cuda/include \
-DCUDA_CUDART_LIBRARY=/usr/local/cuda/lib64 \
-DCMAKE_INSTALL_PREFIX=/data/chaofan/software/GROMACS22 \
-DCMAKE_C_COMPILER=/data/chaofan/miniconda3/envs/GROMACS/bin/gcc \
-DCMAKE_CXX_COMPILER=/data/chaofan/miniconda3/envs/GROMACS/bin/g++

make -j 40 
make check
make install

source /data/chaofan/software/GROMACS22/bin/GMXRC
./gmx_mpi 

```

I got an error:

> free(): invalid pointer  
> Aborted (core dumped)

How to fix it? Thank you for your reply!