| Site: | Government | 
|---|---|
| Manufacturer: | Cray/HPE | 
| Cores: | 20,960 | 
| Processor: | Opteron Quad Core 4C 2.4GHz | 
| Interconnect: | XT4 Internal Interconnect | 
| Installation Year: | 2009 | 
| Performance | |
| Linpack Performance (Rmax) | 165.60 TFlop/s | 
| Theoretical Peak (Rpeak) | 201.22 TFlop/s | 
| Software | |
| Operating System: | CNL | 
| List | Rank | System | Vendor | Total Cores | Rmax (GFlop/s) | Rpeak (GFlop/s) | Power (kW) | 
|---|---|---|---|---|---|---|---|
| 06/2015 | 498 | Cray XT5 QC 2.4 GHz | Cray/HPE | 20,960 | 165.60 | 201.22 | |
| 11/2014 | 419 | Cray XT5 QC 2.4 GHz | Cray/HPE | 20,960 | 165.60 | 201.22 | |
| 06/2014 | 341 | Cray XT5 QC 2.4 GHz | Cray/HPE | 20,960 | 165.60 | 201.22 | |
| 11/2013 | 267 | Cray XT5 QC 2.4 GHz | Cray/HPE | 20,960 | 165.60 | 201.22 | |
| 06/2013 | 210 | Cray XT5 QC 2.4 GHz | Cray/HPE | 20,960 | 165.60 | 201.22 | |
| 11/2012 | 152 | Cray XT5 QC 2.4 GHz | Cray/HPE | 20,960 | 165.60 | 201.22 | |
| 06/2012 | 107 | Cray XT5 QC 2.4 GHz | Cray/HPE | 20,960 | 165.60 | 201.22 | |
| 11/2011 | 69 | Cray XT5 QC 2.4 GHz | Cray/HPE | 20,960 | 165.60 | 201.22 | |
| 06/2011 | 47 | Cray XT5 QC 2.4 GHz | Cray/HPE | 20,960 | 165.60 | 201.22 | |
| 11/2010 | 41 | Cray XT5 QC 2.4 GHz | Cray/HPE | 20,960 | 165.60 | 201.22 | |
| 06/2010 | 29 | Cray XT5 QC 2.4 GHz | Cray/HPE | 20,960 | 165.60 | 201.22 | |
| 11/2009 | 23 | Cray XT5 QC 2.4 GHz | Cray/HPE | 20,960 | 165.60 | 201.22 |