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The most basic way to start CONVERGE in parallel is

 

mpirun -n <number of processes> converge-mpich

 

For example, to start a job on four CPU cores, you would type

 

mpirun -n 4 converge-mpich

 

In practice, however, we recommend adding several additional arguments to the mpirun command line to improve your user experience. To write the output to a file and start the job in the background, use

 

mpirun -n 4 converge-mpich < /dev/null > logfile.out &

 

The redirect of the /dev/null is recommended by MPICH to avoid some warnings that would otherwise be sent to stdout.