Good morning, I downloaded and built mpich2-1.0.5p4 and hopefully configured it to build ROMIO. The options I used are: ./configure --prefix=/home/laytonj/bin/mpich2-1.0.5p4-g95 \ --enable-f77 \ --enable-f90 \ --enable-romio How can i check if ROMIO was built without having to compile a MPI-IO code? Thanks! Jeff