I'm a computational cosmologist trying to remember all the little code tricks I've stumbled upon. I work mostly in Fortran 90/03 and IDL but I'm learning some Python, C, and C++.
sudo ~/Downloads/linux-programs/openmpi-1.4.4/configure --prefix=/opt/openmpi-1.4.4-gfortran-4.5 F77=gfortran-4.5 FC=gfortran-4.5
sudo make all install