libibverbs: Warning: RLIMIT_MEMLOCK is 32768 bytes. This will severely limit memory registrations.

We are using OpenFarics for our HPC. According to the FAQ, "With OpenFabrics (and therefore the openib BTL component), you need to set the available locked memory to a large number (or better yet, unlimited) -- the defaults with most Linux installations are usually too low for most HPC applications that utilize OpenFabrics"

libibverbs: Warning: RLIMIT_MEMLOCK is 32768 bytes.
This will severely limit memory registrations.

For the solution, look here at http://www.open-mpi.org/faq/?category=openfabrics#ib-locked-pages
Or you can also look at my blog entry Encountering Segmentation Fault, Bus Error or No output