 options as shown below. It is useful to check if you are getting the expected mapping of tasks and threads to cores.  The core on which a thread/task is running is given in the last column.  In the ideal world you will not have a core on a given node with more than one thread/task. This can be seen more readily if you sort the output as shown below.
</p>

<div class="pre">

<span class="c">[ramba@colostate.edu@shas0202 sing]$ </span><span class="b">./cat phostone.out | sort  -k3,3 -k6n</span>
MPI VERSION I