/usr/lib/libopen-pal.so.3.0.0 is in libopenmpi1.5-2 1.5.4-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/openmpi/lib/libopen-pal.so.3.0.0
/usr/lib/openmpi/lib/libopen-pal.so.3.0.0