| Machine | Operating System | Compiler(s) |
| IBM SP with WinterHawk+ nodes with 375 MHz Power3 processors | AIX version 5.2 | XL Fortran version 9.1 |
| IBM pSeries 690 and pSeries 655 Nodes (Power 4 processors) | AIX version 5.2 | XL Fortran version 9.1 |
| SGI Altix 3700 | Linux SuSE version 9.0 | Intel Fortran version 8.1 |
| Machine | Operating System | Compiler(s) |
| IBM pSeries 690 and pSeries 655 Nodes (Power 4 processors) | AIX version 5.2 | XL Fortran version 9.1 |
| SGI Altix 3700 | Linux SuSE version 9.0 | Intel Fortran version 8.1 |
| IBM Blade285 | Linux | PathScaleTM EKOPathTM Compiler Suite version 2.5 |
| Machine | Operating System | Compiler(s) |
| IBM pSeries 690 and pSeries 655 Nodes (Power 4 processors) | AIX version 5.2 | XL Fortran version 9.1 |
| SGI Altix 3700 | Linux SuSE version 9.0 | Intel Fortran version 8.1 |
| IBM Blade285 | Linux | PathScaleTM EKOPathTM Compiler Suite version 2.5 |
| Machine | Operating System | Compiler(s) |
| IBM Blade285 | Linux | PathScaleTM EKOPathTM Compiler Suite version 2.5 |
| Machine | Operating System | Compiler(s) |
| IBM Blade285 | Linux | PathScaleTM EKOPathTM Compiler Suite version 2.5 |
| IBM Calhoun | Linux | Intel Fortran version 11.0 |