docker build -t my-gcc-app .
Share your current folder with your docker
docker run -it -v "$PWD":/host my-gcc-app
Open mpi test :
cd /host
mpic++ <name of your cpp file>
mpirun --allow-run-as-root ./a.out (because you are root on docker) TODO : create user and give correct permissions etc (Flemme)
To run with multiple threads :
mpirun --allow-run-as-root -n 4 ./a.out