Welcome to LQ.
lmpi = libmpi.so → → openmpi-devel(-1.2.8-13.1.x86_64)
Not in your LD_LIBRARY_PATH, I think : /usr/lib64/mpi/gcc/openmpi/lib64/libmpi.so
Add it to the LD_LIBRARY_PATH , or use something like : cd <ga-5-1>/
&& export LD_LIBRARY_PATH=/usr/lib64/mpi/gcc/openmpi/lib64:/lib:/usr/lib
&& ./configure
The export command is temporary : Will reset to /lib:/usr/lib etc.
when you exit the terminal.
And by the way : Why not use the latest stable = GA 5.0.2
http://www.emsl.pnl.gov/docs/global/latest.shtml
..