| Machine | Operating System | Compiler(s) |
| IBM pSeries 690 and pSeries 655 Nodes | AIX version 5.2 | XL Fortran version 9.1 |
| SGI-Altix, Itanium 2 | Red Hat Linux 2.6.5-7.252-sn2 | Intel version 8.1 |
| IBM-Blade, AMD Opteron | Red Hat Linux 2.6.5-7.308-smp | Intel 8.1, PGI 6.2 |