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)|
|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|
|Network and Infrastructure racks||4|
|Peak Power (MW)||~1.8|