The format of the command for Intel MPI is
mpirun -n <number of processes> -ppn <number of processes per node> converge-intelmpi
For example, the command to run CONVERGE on 4 nodes with 4 processing cores per node is
mpirun -n 16 -ppn 4 converge-intelmpi
In practice, however, a few things should be added to the mpirun command line to make it more practical. To write the output to a file and start the job in the background, use
mpirun -n 16 -ppn 4 converge-intelmpi < /dev/null > logfile.out &
The redirect of the /dev/null is recommended by Intel MPI to avoid some warnings that would otherwise be sent to stdout.