% MPICH 1.2.6 installation. The Fortran part is with both g77 and g95 cd username tar -zxovf mpich.tar.gz mv mpich-1.2.6 mpich-1.2.6-install chown -R username mpich-1.2.6-install chgrp -R users mpich-1.2.6-install chmod 755 -R mpich-1.2.6-install cd mpich-1.2.6-install export FC=g77 ; echo $FC configure --enable-sharedlib --disable-f90 --prefix=/usr/local/mpich-1.2.6 make make install exit export FC=g95 ; echo $FC export F90=g95 ; echo $F90 configure --enable-sharedlib --prefix=/usr/local/mpich-1.2.6 make make install make testing cd cd /usr/local chown -R root /usr/local/mpich-1.2.6 chgrp -R root /usr/local/mpich-1.2.6 chmod 755 -R /usr/local/mpich-1.2.6