Since Paul is the only one of the team with the required hardware to test it, and he has done so, consider this RM-approved.
cmr=v1.7.5:reviewer=ompi-gk1.7
This commit was SVN r30401.
need memory barriers to actually do something other than hint
to the compiler not to reorder memory-related instructions. The
IA64 instruction for memory barriers is "mf".
Fixes bug #137.
This commit was SVN r10401.
