| Machine | Operating System | Compiler(s) |
| IBM SP with WinterHawk+ nodes | AIX version 5.1 | XL Fortran version 9.1 |
| IBM pSeries 690 and pSeries 655 Nodes | AIX version 5.2 | XL Fortran version 9.1 |
| Netfinitiy Linux cluster | Red Hat Linux 2.4.21 | pgf77 version 5.2.4 |
| SGI-Altix, Itanium 2 processors | Red Hat Linux 2.4.21 | gnu g77 version 3.2.3 |
| SGI Origin 2000 | IRIX version 6.5 | gnu g77 version 3.2.3 |
| SunBlade 2000, UltraSparc III processors | Solaris 9 | gnu g77 version 3.3.1 |