| Site: | Los Alamos National Laboratory | 
|---|---|
| Manufacturer: | LNXI | 
| Cores: | 252 | 
| Processor: | Pentium 4 Xeon 2.4GHz | 
| Interconnect: | Myrinet | 
| Installation Year: | 2003 | 
| Performance | |
| Linpack Performance (Rmax) | 840.50 GFlop/s | 
| Theoretical Peak (Rpeak) | 1,209.60 GFlop/s | 
| Nmax | 175,760 | 
| Nhalf | 27,768 | 
| Software | |
| Operating System: | Linux | 
| List | Rank | System | Vendor | Total Cores | Rmax (GFlop/s) | Rpeak (GFlop/s) | Power (kW) | 
|---|---|---|---|---|---|---|---|
| 11/2004 | 498 | Grendels P4 Cluster 2.4 GHz - Myrinet | LNXI | 252 | 840.50 | 1,209.60 | |
| 06/2004 | 312 | Grendels P4 Cluster 2.4 GHz - Myrinet | LNXI | 252 | 840.50 | 1,209.60 | |
| 11/2003 | 161 | Grendels P4 Cluster 2.4 GHz - Myrinet | LNXI | 252 | 840.50 | 1,209.60 | |
| 06/2003 | 78 | Grendels P4 Cluster 2.4 GHz - Myrinet | LNXI | 252 | 840.50 | 1,209.60 |