Almost any platform with a Fortran77 compiler supporting the Cray pointer extension. It is preconfigured to run on IBM AIX, Linux, SGI Irix, SUN Solaris, HP HP-UX and Tru64 UNIX, NEC Super-UX, and Hitachi HI-UX/MPP.
After unpacking the sources, choose a reference configuration, customize the generated Makefile, and build the program. This process could e.g. look like: ./Configure ./Configure IBM-SP4 > Makefile vi Makefile make