Lassen
Lassen is similar to the classified Sierra system, but smaller in size: ~20 petaflops peak performance vs. Sierra's 125 petaflops peak performance.
Lassen was formerly referred to as uSierra (or unclassified Sierra.)
Availability tentatively scheduled for Fall, 2018.
| System Details (subject to change on final install) | Lassen (aka uSierra) |
|---|---|
| Zone | CZ |
| Nodes | 684 |
| POWER9 processors per node | 2 |
| GV100 (Volta) GPUs per node | 4 |
| Node Peak (tFLOP/s) | 29.1 |
| System Peak (pFLOP/s) | 19.9 |
| Node Memory (GiB) | 320 |
| System Memory (PiB) | 0.209 |
| Interconnect | 2x IB EDR |
| Off-Node Aggregate b/w (GB/s) | 45.5 |
| Compute racks | 38 |
| Network and Infrastructure racks | 4 |
| Storage Racks | 4 |
| Total racks | 46 |
| Peak Power (MW) | ~1.8 |