Sites Atlas
| System Name | Atlas |
| Site | Lawrence Livermore National Laboratory |
| System Family | Appro HyperBlade |
| System Model | Appro XtremeServers |
| Computer | Appro Xtreme Server - Quad Opteron Dual Core 2.4GHz Infiniband |
| Vendor | Appro International |
| Application area | Not Specified |
| Main Memory | 18432 GB |
| Installation Year | 2007 |
| Operating System | Linux |
| Memory | 18432 GB |
| Interconnect | Infiniband DDR |
| Processor | AMD x86_64 Opteron Dual Core 2400 MHz (4.8 GFlops) |