@ -76,7 +76,7 @@ The host file that contains addresses of connected workers can be created with:
#### run the MPI hello world program
> sudo -u mpi mpirun -n 10 -f /home/ubuntu/hosts /home/ubuntu/mpi_hello_world
> mpirun -n 10 -f /home/ubuntu/hosts /home/ubuntu/mpi_hello_world
---