====== Systems used to obtain performance results ======

Performance data is currently available for the following Cray systems:

^ Name ^ Architecture ^ Processor ^ Clock (GHz) ^ Nodes ^ Cores/Node ^ Peak (TFlop/s) ^ GFlop/s/Node ^ Year ^
| HECToR Phase 3 | Cray XE6 | AMD Opteron 6276 "Interlagos" 16-core | 2.3 | 2816 | 32 | 829.03 | 294.4 | 2011 |
| ARCHER Phase 1| Cray XC30 | Intel Xeon E5-2697 v2 "Ivy-Bridge" 12-core | 2.7 | 3008 | 24 | 1559.35 | 518.4 | 2013 |
| Magnus | Cray XC40 | Intel Xeon E5-2690 v3 "Haswell" 12-core | 2.6 | 1488 | 24 | 1485.6 | 998.4 | 2014 |
| Piz Daint | Cray XC30 | Intel Xeon E5-2670 "Sandy-Bridge" 8-core + NVIDIA Tesla K20X GPU | 2.6 | 5272 | 8 + 1 GPU | 7787| 166.4 (CPU) + 1311 (GPU) | 2015|
| Noctua | Cray CS500 | Intel Xeon Gold 6148 "Skylake-SP" 20-core | 2.4 | 272 | 40 | 761.6 | 2800 | 2018 | 

Additional systems:

^ Name ^ Architecture ^ Processor ^ Clock (GHz) ^ Nodes ^ Cores/Node ^ Peak (TFlop/s) ^ GFlop/s/Node ^ Year ^
| Cirrus | SGI ICE XA | Intel Xeon E5-2695 v4 "Broadwell" 18-core | 2.1 | 56 | 36 | 67.7 | 1209.6 | 2016 |