Add some additional verbose output per this RFC
http://www.open-mpi.org/community/lists/devel/2014/03/14282.php
Reviewed by Jeff Squyres
For the love of all that is holy, do not put 1MB arrays on the stack.

This was causing JVMs to run out of stack space, and all manner of
badness ensued.

Instead, use the heap -- that's what it's there for.

cmr=v1.7.5:reviewer=rhc:subject=make coll/ml use the heap for large debug array
Fix minor hwloc memory leak in sbgp/basesmsocket

cmr=v1.8:reviewer=hjelmn
Remove extraneous "while(0)".

Oops.

cmr=v1.7.5:ticket=#4395