# G09 qmmm on Linux Cluster not set up properly **URL:** \ **Category:** User discussions\ **Created:** [March 5, 2021, 6:07am UTC](https://gromacs.bioexcel.eu/t/g09-qmmm-on-linux-cluster-not-set-up-properly/1686 "2021-03-05T06:07:22Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![venturellac](https://avatars.discourse-cdn.com/v4/letter/v/b5a626/32.png) [@venturellac](https://gromacs.bioexcel.eu/u/venturellac)\ **Post date:** [March 5, 2021, 6:07am UTC](https://gromacs.bioexcel.eu/t/g09-qmmm-on-linux-cluster-not-set-up-properly/1686/1 "2021-03-05T06:07:23Z")
GROMACS version: 2019.6 GROMACS modification:No When I run a qmmm simulation, gromacs returns an error that I don’t have the proper configuration for qmmm. This is the error in forecrec.cpp: Software inconsistency error: QM/MM was requested, but is only available when GROMACS is configured with QM/MM support How can I do this for gromacs 2019.6? I used these options to install explicitly the qmmm interface for Gaussian: # gromacs will add -march=core-avx2 to the next line OPTFLAGS="-Ofast -mtune=broadwell -DNDEBUG" cmake3 … -DCMAKE\_BUILD\_TYPE=Release \ -DCMAKE\_C\_COMPILER=icc -DCMAKE\_C\_FLAGS\_RELEASE="$OPTFLAGS" \ -DCMAKE\_CXX\_COMPILER=icpc -DCMAKE\_CXX\_FLAGS\_RELEASE="$OPTFLAGS" \ -DGMX\_BUILD\_MDRUN\_ONLY=OFF -DGMX\_MPI=OFF -DGMX\_OPENMP=ON \ -DGMX\_SIMD=AVX2\_256 -DGMX\_DOUBLE=OFF \ -DGMX\_FFT\_LIBRARY=mkl \ -DGMX\_GPU=ON -DGMX\_CUDA\_TARGET\_SM=60 \ -DCMAKE\_INSTALL\_PREFIX=$HOME/.local \ -DGMX\_COOL\_QUOTES=OFF -DREGRESSIONTEST\_DOWNLOAD=ON -DGMX\_QMMM\_PROGRAM=GAUSSIAN make -j 10 make check make install Since I checked with grep that there are the qmmm binaries in src, I think it is an issue with how I sete environment variables for gromacs to talk to g09. I tried my best to follow these instructions here: [QM/MM implementation in Gromacs](http://wwwuser.gwdg.de/~ggroenh/qmmm.html) Any help greatly appreciated!